No changes between revisions
| /Designs/LCTmetr01A/DOC/LCT.pdf |
|---|
| Cannot display: file marked as a binary type. |
| svn:mime-type = application/octet-stream |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| Added: svn:mime-type |
| +application/octet-stream |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/bin/PRG.BAT |
|---|
| 0,0 → 1,6 |
| call picpgr stop lpt2 |
| call picpgr erase pic16f876 lpt2 |
| call picpgr program lc.hex hex pic16f876 lpt2 |
| call picpgr run lpt2 |
| pause |
| call picpgr stop lpt2 |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/bin/lc.HEX |
|---|
| 0,0 → 1,639 |
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| ;PIC16F876 |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/lc.PJT |
|---|
| 0,0 → 1,138 |
| [PROJECT] |
| Target=lc.HEX |
| Development_Mode=2 |
| Processor=0x876F |
| ToolSuite=CCS |
| [Directories] |
| Include=C:\PROGRAM FILES\PICC\DEVICES\;C:\LIBRARY\CCS;C:\Program Files\PICC\Drivers; |
| Library= |
| LinkerScript= |
| [Target Data] |
| FileList=lc.c; |
| BuildTool=C-COMPILER |
| OptionString=+FM; |
| AdditionalOptionString= |
| BuildRequired=0 |
| [lc.c] |
| Type=4 |
| Path= |
| FileList=16F876.H;16F877_R.H;LC.H;LCD.C; |
| BuildTool= |
| OptionString= |
| AdditionalOptionString= |
| [Fuses] |
| Frequency=4000000.000000 |
| ClockSource=1 |
| Mode=0 |
| WDTEnable=0 |
| WDTBreak=0 |
| WDTPrescale=710 |
| StackBreak=0 |
| Freeze=1 |
| EmulatorMemory=1 |
| ShortWrites=0 |
| PwrSetting=0 |
| OSC_Settings=1 |
| ProgBankRegEnable=0 |
| BankRegStartAddress=0 |
| BankRegEndAddress=0 |
| DisableIoPins=0 |
| 12CXXX_MCLR_ENABLE=0 |
| CPP2_ENABLE=0 |
| LPSC_ENABLE=0 |
| MCLRPU_ENABLE=0 |
| [Trace-Config] |
| GetAddress=1 |
| AddressWidth=5.000000 |
| GetOpcode=1 |
| OpcodeWidth=5.000000 |
| GetLabel=1 |
| LabelWidth=8.000000 |
| GetInstruction=1 |
| InstructionWidth=10.000000 |
| InstructionRaw=1 |
| GetSrcAddr=1 |
| SrcAddrWidth=4.000000 |
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| GetSrcValue=1 |
| SrcValueWidth=4.000000 |
| GetDstAddr=1 |
| DstAddrWidth=4.000000 |
| DstAddrRaw=1 |
| GetDstValue=1 |
| DstValueWidth=4.000000 |
| GetExtInputs=1 |
| ExtInputsWidth=9.000000 |
| ExtInputsHexFmt=0 |
| GetTimeStamp=1 |
| TimeStampWidth=11.000000 |
| TimeStampDiplay=0 |
| TraceLines=100 |
| TraceFull=0 |
| CodeCoverageReset=1 |
| [16F876.H] |
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| [16F877_R.H] |
| Type=5 |
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| AdditionalOptionString= |
| [LCD.H] |
| Type=5 |
| Path= |
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| BuildTool= |
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| AdditionalOptionString= |
| [LCD.C] |
| Type=5 |
| Path=C:\LIBRARY\CCS\ |
| FileList= |
| BuildTool= |
| OptionString= |
| AdditionalOptionString= |
| [LC.H] |
| Type=5 |
| Path= |
| FileList= |
| BuildTool= |
| OptionString= |
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| [KBD.C] |
| Type=5 |
| Path=C:\LIBRARY\CCS\ |
| FileList= |
| BuildTool= |
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| [mru-list] |
| 1=d:\pefi\projekty\lcmetr\lc.h |
| 2=c:\library\ccs\lcd.c |
| 3=d:\pefi\projekty\lcmetr\lcd.h |
| 4=lc.c |
| [Windows] |
| 2=0000 d:\pefi\projekty\lcmetr\lc.c 25 65 589 488 9 0 |
| 1=0020 681 10 1081 572 9 0 |
| 0=0010 66 135 546 707 2 4 16 |
| Stopwatch=454 404 722 563 9 0 |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/lc.c |
|---|
| 0,0 → 1,883 |
| //********************************************************************** |
| // LCT-METER/PULSER |
| //********************************************************************** |
| // (c) OK1XGL 2004 |
| // verze 1.00 - uvodni verze 10.1.2004 |
| // verze 1.01 - pridano ukladani vlastni Cp/Lp do pameti EEPROM |
| // - pridano ukladani stavu (mod, parametry modu ) do pameti EEROM |
| // |
| // |
| // Popis funkcnosti: |
| // ----------------- |
| // Meri kapacitu, indukcnost, teplotu a jako doplnek obsahuje generator impulzu. |
| // Jednotlive druhy mereni se prepinaji stiskem tlacitka MODE. Stiskem tlacitka NUL lze |
| // vynulovat mereni (odecteni vlivu mericich privodu, u mereni teploty odecteni napr. pro mereni otepleni). |
| // |
| // Mereni L a C: |
| // ------------- |
| // Mereni se provadi merenim kmitoctu mericiho oscilatoru. Neznama Lx se pripojuje do serie s vnitrni L oscilatoru. |
| // Neznama Cx se pripojuje paralelne k vnitrni C oscilatoru. Vypocet nezname Cx/Lx se provadi pomoci nasledujicich vzorcu: |
| // Cx=((f1^2/f2^2)-1)*C Lx=((f1^2/F2^2)-1)*L |
| // Pripadne se od vysledku odecte hodnota Cv nebo Lv, ktera se ziska stisknutim NUL |
| // f1 - kmitocet mericiho oscilatoru, ke kteremu neni pripojena zadna Lx nebo Cx, ziska se pri kalibraci |
| // f2 - kmitocet mericiho oscilatoru s pripojenou neznamou Lx nebo Cx |
| // C - kapacita vnitrniho C oscilatoru, ziska se pri kalibraci |
| // L - indukcnost vnitrni L oscilatoru, ziska se kalibraci |
| // |
| // Kalibrace: |
| // ---------- |
| // Provadi se pri zapnuti pristroje a probiha takto: |
| // Zmeri se kmitocet mericiho oscilatoru f1 ,ke kteremu neni pripojena zadna Lx nebo Cx. |
| // Pripoji se kalibracni kondenzator Ck o zname hodnote, mel by byt co nejpresnejsi a nejstabilnejsi. |
| // Zmeri se kmitocet mericiho oscilatoru f2. |
| // Vypoctou se hodnoty L a C podle vzorcu: |
| // C=(Ck*F2^2)/(F1^2-F2^2) L=(1/(4*PI^2*F1^2*C) |
| // Odpoji se kalibracni kondenzator Ck a pristroj je pripraven k mereni L a C |
| // |
| // |
| // Mereni teploty: |
| // --------------- |
| // Kladna merici svorka je pripojena primo na vstup procesoru. Pro mereni teploty se pouziva teplomer |
| // fy Dallas DS18B20, se kterym se komunikajue po I2C sbernici. |
| // |
| // |
| // Generovani pulzu: |
| // ----------------- |
| // Kladna merici svorka je pripojena primo na vstup procesoru. Jsou generovany kladne pulzy se zvolenou sirkou. |
| // Nulove pulzy maji stejnou sirku, tedy perioda je dvojnasobek sirky pulzu. |
| // |
| // |
| // |
| // Poznamky k implementaci: |
| // ------------------------ |
| // |
| // 1) mereni L a C |
| // ---------------- |
| // Zakladem je mereni kmitoctu. Presnost mereni byla zvolena na 4Hz, tedy merici perioda bude 250ms. Pro citani impulzu je |
| // pouzit 16 bitovy citac TMR1, ktery je rozsiren o dalsich 8 bitu promennou counter_H. Pretecenim TMR1 se v preruseni zvysi |
| // hodnota counter_H o jednicku. Merici periodu odmeruje 8 bitovy citac TMR0, kteremu je predrazen preddelic :256. Cita |
| // takty procesoru. TMR0 pretece kazdych 50ms. Promenna sampler_H obsahuje pocet potrebnych 50ms jednotek pro dosazeni |
| // pozadovaneho casu. Prommena sampler_H se dekrementuje v preruseni. Po uplynuti merici periody (250ms) se zastavi citani |
| // TMR1, ktery spolu s hodnotou v counter_H bude obsahovat mereny kmitocet s presnosti 4Hz. |
| // Promenou freq_done se oznami ukonceni mereni kmitoctu. Hodnota v TMR1 a counter_H se prevede na realne cislo, ktere se |
| // dale pouzije pro vypocty. |
| // |
| // 2) mereni teploty |
| // ----------------- |
| // Vyuziva se teplomeru fy Dallas DS18B20, ktery komunikuje po I2C sbernici. Pro tento mod se sepne rele, ktere pripoji |
| // kalibracni kondenzator Ck. Tim dojde k pripojeni svorek na vstup portu pro teplomer. Mereni teploty probiha tak, ze se |
| // vysle prikaz do teplomeru aby zmeril teplotu a po uplynuti potrebne doby konverze se z teplomeru precte zmerena teplota a |
| // zobrazi se. Pro odmereni doby konverze se vyuziva mereni frekvence, ktere trva 250ms. |
| // |
| // 3) Generovani pulzu |
| // ------------------- |
| // Pro tento mod se sepne rele, ktere pripoji kalibracni kondenzator Ck. Tim dojde k pripojeni svorek na vystup portu |
| // pro pulser. Pro generovani pulzu je vyuzivana jednotka PWM1 pro pulzy do sirky 1ms a pro pulzy delsi pak jednotka CCP1. |
| // Generovani pulzu PWM1 jednotkou je zcela autonomni, jednotce se nastavi perioda (dvojnasobek sirky pulzu) a sirka pulzu |
| // a generovani probiha mez zasahu programu. Jednotka CCP1 generuje periodicke preruseni po dobe urcene sirkou pulzu. |
| // Vlastni impulz je generovan v preruseni, kde se periodicky strida nastaveni portu do log.1 a do log.0 |
| // |
| // 4) Cteni tlacitek |
| // ----------------- |
| // Pro cteni tlacitek je vyuzivano preruseni od zmeny na portu B. Pri zmene stavu nektereho z tlacitek toto preruseni |
| // nastavi promenou freq_done. Na miste v programu, kde se testuje tato promenna se precte stav tlacitek a podle |
| // jejich stavu se dal pokracuje. |
| // |
| // 5) Zakladni smycky programu |
| // --------------------------- |
| // Hlavni smycka programu je koncipovana jako stavovy automat, kdy jednotlive stavy predstavuji jednotlive mody mereni. |
| // V jednotlivych stavech se volaji hlavni funkce jednotlivych modu mereni. Tyto funkce jsou koncipovany jako stavove |
| // automaty, ktere provedou podle potreby uvodni akci a dale sleduji stav promenne freq_done. Na zaklade tohoto stavu |
| // pokracuji dale nebo prechazeji do stavu jineho. freq_done ma tyto stavy: |
| // F_PEACE -klidovy stav |
| // F_DONE- mereni kmitoctu dokonceno |
| // F_KEY- mereni kmitoctu preruseno stiskem nejakeho tlacitka. |
| // Stav F_DONE je vyuzivan v modu mereni Lx a Cx a dale v modu mereni teploty se vyuziva k odmerovani casu. |
| // Pri stavu F_KEY se precte stav tlacitek a pri stisku tlacitka MODE se opousti hlavni funkce aktivniho modu mereni a |
| // prechazi se zpet se do hlavni smycky programu. V hlavni smycce programu se nasledne prejde do nasledujiciho modu mereni. |
| // Pri stisku tlacitka NUL se provede pozadavana akce, a zustava se v danem modu mereni. |
| #include <16f876.h> |
| #include <16F877_reg.h> |
| #include "lc.h" |
| #include <lcd.c> |
| #include <tm.c> |
| #include <math.h> |
| //#define FREQ // jen mereni frekvence mericiho oscilatoru, urceno pro jeho kalibraci |
| // pripojime citac na vystup mericiho oscilatoru a musi ukazovat totez co je na displeji, pokud tomu tak neni, |
| // napravu provedeme zmenou konstanty CORIG v lc.h pripadne zmenou kondenzatoru u oscilatoru procesoru |
| /*****************************************************/ |
| /************* PRERUSOVACI RUTINY ********************/ |
| /*****************************************************/ |
| #USE FAST_IO(A) |
| #USE FAST_IO(B) |
| #USE FAST_IO(C) |
| // prerusovaci rutina spolecna pro vsechny preruseni, napsana v assembleru, protoze cecko to dela neefektivne |
| #int_GLOBAL |
| void int_handler() |
| { |
| // uloz W, STATUS a PCLATH |
| #asm |
| movwf W_TMP |
| swapf STATUS,W |
| clrf STATUS |
| movwf F_TMP |
| movf PCLATH,W |
| movwf PCLATH_TMP |
| clrf PCLATH |
| btfss PIR1,_TMR1IF |
| goto NO_T1_L |
| // preruseni od timeru1 |
| incf counter_h,F // +1 na nejvyssim radu citace impulzu |
| bcf PIR1,_TMR1IF // nuluj priznak preruseni |
| // pokracujeme hned testem preruseni od timeru0 (odmeruje periodu mereni) |
| NO_T1_L: |
| btfss INTCON,_T0IF |
| goto NO_T0_L // na dalsi druhy preruseni |
| // preruseni od timeru 0 |
| bcf INTCON,_T0IF // nuluj priznak preruseni |
| movlw CORIG // pridane spozdeni, aby byl odmereny cas timerem 0 presne |
| movwf INT_TMP |
| LOOP: |
| decfsz INT_TMP,F |
| goto LOOP |
| nop |
| movlw TIME_1S_L // znovu natahni timer0 |
| movwf TMR0 |
| decf sampler_H,F // -1 na citaci opakovani zakladni periody timeru0 |
| btfss STATUS,_Z // perioda mereni vyprsela? |
| goto END_INT_L // koncime,abychom nezdrzovali dalsimi zdroji preruseni na nich jiz casove nezalezi |
| nop |
| nop |
| nop |
| nop |
| bcf T1CON,_TMR1ON // zastav citani impulzu |
| movlw F_DONE |
| movwf freq_done // priznak ukonceni citani - mereni OK |
| bcf INTCON,_T0IE // zakaz preruseni od timeru0 |
| goto END_INT_L // koncime,abychom nezdrzovali dalsimi zdroji preruseni na nich jiz casove nezalezi |
| NO_T0_L: |
| btfss INTCON,_RBIF |
| goto NO_RB_L |
| // preruseni od tlacitek na brane B |
| movf PORTB,W |
| movlw F_KEY |
| movwf freq_done // nastav priznak , ze mereni frekvence nedopadlo dobre (stisknuto nektere z tlacitek) |
| bcf INTCON,_RBIF |
| goto END_INT_L |
| NO_RB_L: |
| btfss PIR1,_CCP1IF |
| goto END_INT_L |
| // preruseni od komparacni jednotky, pouziva se pouze v rezimu pulser pro generovani pulzu od 1ms vyse |
| // nasledujici konstrukce zajistuje pro 1 i 0 nastaveni pinu ve stejny okamzik, doba do bodu B je tez stejna |
| btfss INT_TMP,0 |
| goto A |
| btfsc INT_TMP,0 |
| bcf PORTC,2 |
| goto B |
| A: |
| bsf PORTC,2 |
| goto B |
| B: |
| comf INT_TMP,F // priste budeme nastavovat opacnou hodnotu |
| bcf PIR1,_CCP1IF // nuluj priznak preruseni od CCP1 jednotky |
| END_INT_L: |
| // obnov W, STATUS a PCLATH |
| movf PCLATH_TMP,W |
| movwf PCLATH |
| swapf F_TMP,W |
| movwf STATUS |
| swapf W_TMP,F |
| swapf W_TMP,W |
| #endasm |
| } // int_handler |
| /**************************************************/ |
| /*********** FUNKCE MERENI KMITOCTU ***************/ |
| /**************************************************/ |
| // zahajeni mereni frekvence |
| // |
| void start_freq() |
| { |
| #asm |
| bcf T1CON,_TMR1ON // zastav citac TMR1 |
| clrf TMR1L // nuluj citac TMR1, ktery cita vstupni implulzy |
| clrf TMR1H |
| clrf counter_H |
| movlw F_PEACE |
| movwf freq_done // nuluj priznak dokonceni mereni frekvence |
| bsf T1CON,_TMR1ON // spust citac TMR1 |
| movlw TIME_1S_L // natahni casovac TMR0, ktery meri periodu mereni |
| movwf TMR0 |
| movlw TIME_1S_H |
| movwf sampler_H |
| bcf INTCON,_T0IF // nuluj priznak preruseni od timeru0 |
| bsf INTCON,_T0IE // povol preruseni od timeru0 |
| #endasm |
| } // start_freq |
| // zmereni frekvence a jeji umocneni |
| // |
| float mfreq_sqr() |
| { |
| float f; |
| start_freq(); // odstartuj mereni frekvence |
| while(freq_done==F_PEACE); // cekej na dokonceni zmereni frekvence |
| f=F_CORRECT*(float)make32(counter_H,get_timer1()); // preved zmerenou frekvennci na float |
| #ifdef FREQ |
| return(f); // pro mereni frekvence vracej frekvenci |
| #else |
| return(f*f); // vrat kvadrat |
| #endif |
| } // mfreq_sqr |
| /*******************************************************************/ |
| /*********** FUNKCE PRO PREPINANI TYPU MERENI (rele) ***************/ |
| /*******************************************************************/ |
| // prepne rele na mod mereni C |
| // |
| rele_measure_C() |
| { |
| output_high(RE1_B); |
| output_high(RE2_B); |
| delay_ms(RELE_PULSE); |
| output_low(RE1_B); |
| output_low(RE2_B); |
| } // rele_measure_C |
| // prepne rele na mod mereni L |
| // |
| rele_measure_L() |
| { |
| output_high(RE1_A); |
| output_high(RE2_B); |
| delay_ms(RELE_PULSE); |
| output_low(RE1_A); |
| output_low(RE2_B); |
| } // rele_measure_L |
| // prepne rele na kalibraci a tez na mody mereni teploty a pulser |
| // |
| rele_calib() |
| { |
| output_high(RE1_B); |
| output_high(RE2_A); |
| delay_ms(RELE_PULSE); |
| output_low(RE1_B); |
| output_low(RE2_A); |
| } // rele_calib |
| /*******************************************************************/ |
| /*********** POMOCNE FUNKCE JEDNOTLIVYCH MODU MERENI ***************/ |
| /*******************************************************************/ |
| // vraci cislo radu (0=1E0, 1=1E3 2=1E6 atd.) a upravi parametr aby byl do 999.999 |
| // |
| int8 range(float &Xv) |
| { |
| int8 ret_val; |
| ret_val=0; |
| while(fabs(Xv)>1E3) |
| { |
| Xv=Xv*1E-3; |
| ret_val++; |
| } |
| return(ret_val); |
| } // range |
| // vraci pocet celych cislic realneho argumentu |
| // |
| int8 num_int_digit(float X) |
| { |
| int8 ret_val; |
| ret_val=1; |
| while(fabs(X)>1E1) |
| { |
| X=X*1E-1; |
| ret_val++; |
| } |
| return(ret_val); |
| } // num_int_digit |
| // smaze 1.radek LCD displeje |
| // |
| clr_1Line() |
| { |
| int8 i; |
| lcd_gotoxy(1,1); |
| for(i=0;i<16;i++) lcd_putc(' '); |
| lcd_gotoxy(1,1); |
| } |
| //cekani na uvolneni tlacitek |
| // |
| wait_release_keys() |
| { |
| while(!input(NUL_KEY) || !input(MODE_KEY)) delay_ms(20); // cekej na uvolneni tlacitka |
| freq_done=F_PEACE; |
| } // wait_release_keys |
| // kalibrace |
| // |
| void calibration(float &f1_sqr, float &C, float &L) |
| { |
| float f2_sqr; |
| lcd_putc("\f"); |
| printf(lcd_putc,CALIB_MSG); |
| rele_measure_C(); // rele do stavu odpojeni kalibracniho kondenzatoru a oscilator musi bezet |
| delay_ms(FREQ_CALM_TIME); // pockej na ustaleni oscilatoru |
| // mereni f2 |
| rele_calib(); // pripni kalibracni kondenzator |
| delay_ms(FREQ_CALM_TIME); // pockej na ustaleni oscilatoru |
| f2_sqr=mfreq_sqr(); // zmer kvadrat f2 |
| // vypocet C a L |
| C=(C_CALIB*f2_sqr)/(f1_sqr-f2_sqr); // C1 v pF |
| L=1e9/(39.4784176*f1_sqr*C*1e-12); // L1 v nH |
| /* |
| // zobraz zmerene kalibracni hodnoty |
| lcd_putc("\f"); |
| printf(lcd_putc,"C=%3.2f pF",C); |
| lcd_gotoxy(1,2); |
| printf(lcd_putc,"L=%3.2f nH",L); |
| while(input(NUL_KEY)); // cekej na stisk klavesy |
| lcd_putc("\f"); |
| */ |
| } // calibration |
| /******************************************************************/ |
| /*********** HLAVNI FUNKCE JEDNOTLIVYCH TYPU MERENI ***************/ |
| /******************************************************************/ |
| // mereni L |
| // |
| #inline |
| void measure_L(float &f1_sqr,float &C,float &L) |
| { |
| float f2_sqr; // kvadrat kmitoctu mericiho oscilatoru s pripojenou Lx |
| float X; // zmerena hodnota Lx |
| float Xp; // vlastni Lp (odecita se od vysledku) |
| float Xv; // vysledna hodnota Lx |
| int8 prefix; // index do poli urcijici pismenko radu |
| int8 Xp_p; // pointer na promennou Xp |
| int8 ee_adr; // adresovy citac pameti EEROM |
| // vyzvedni vlastni indukcnost |
| ee_adr=LP_ADR_LOW; |
| for(Xp_p=&Xp;Xp_p<&Xp+4;Xp_p++) *Xp_p=read_eeprom(ee_adr++); |
| for(;;) |
| { |
| f2_sqr=mfreq_sqr(); // zmer kvadrat F2 |
| if(freq_done!=F_DONE) // zmerena frekvence neni platna (stisknuto nektere z tlacitek) |
| { |
| if(!input(MODE_KEY)) break; // stisknuto tlacitko mode, koncime |
| if(!input(NUL_KEY)) |
| { |
| // stisknuto tlacitko NULL, poznamenej si vlastni L |
| Xp=X; |
| // uloz vlastni indukcnost |
| ee_adr=LP_ADR_LOW; |
| for(Xp_p=&Xp;Xp_p<&Xp+4;Xp_p++) write_eeprom(ee_adr++,*Xp_p); |
| clr_1Line(); |
| lcd_gotoxy(9,1); |
| printf(lcd_putc,"0 nH"); |
| wait_release_keys(); // cekej na uvolneni tlacitka |
| } |
| } else |
| { |
| if(f2_sqr<1E2) // bezi oscilator? (kmitocet pod 10Hz povazujeme za nebezici oscilator) |
| { |
| // oscilator NEBEZI |
| clr_1Line(); |
| printf(lcd_putc,CONNECT_LX_MSG); |
| } else |
| { |
| // oscilator BEZI |
| X=(f1_sqr/f2_sqr-1)*L; // vypocti hodnotu Lx |
| Xv=X-Xp; // odecti vlastni L |
| // zobraz hodnotu Lx |
| clr_1Line(); |
| prefix=range(Xv); // uprav rozsah a zjisti cislo radu |
| lcd_gotoxy(6-num_int_digit(Xv),1); // umisti hodnotu tak, aby radova carka zustavala na stejnem miste |
| if(Xv>=0F) lcd_putc(' '); // kladne cislo nema minus, vloz mezeru |
| if(prefix==0) printf(lcd_putc," %3.0f",Xv); // u nH zobrazuj jen cela cisla |
| else printf(lcd_putc,"%6.3f",Xv); // u ostatnich na 3 desetinna mista |
| // zobraz jednotky |
| lcd_gotoxy(12,1); |
| lcd_putc(L_PREFIX[prefix]); |
| lcd_putc('H'); |
| } |
| } |
| } // od hlavni smycky (for(;;)) |
| } // measure_L |
| // mereni C |
| // |
| #inline |
| void measure_C(float &f1_sqr,float &C,float &L) |
| { |
| float f2_sqr; // kvadrat kmitoctu mericiho oscilatoru s pripojenou Cx |
| float X; // zmerena hodnota Cx |
| float Xp; // vlastni Cp (odecita se od vysledku) |
| float Xv; // vysledna hodnota Cx |
| int8 prefix; // index do poli s pismenky radu |
| // int8 pom; |
| int8 Xp_p; // pointer do promenne Xp |
| int8 ee_adr; |
| // vyzvedni vlastni kapacitu |
| ee_adr=CP_ADR_LOW; |
| for(Xp_p=&Xp;Xp_p<&Xp+4;Xp_p++) *Xp_p=read_eeprom(ee_adr++); |
| for(;;) |
| { |
| f2_sqr=mfreq_sqr(); // zmer F2 |
| if(freq_done!=F_DONE) // zmerena frekvence neni platna (stisknuto nektere z tlacitek) |
| { |
| if(!input(MODE_KEY)) break; // stisknuto tlacitko mode, koncime |
| if(!input(NUL_KEY)) |
| { |
| // stisknuto tlacitko NULL, poznamenej si vlastni Cp |
| Xp=X; |
| // uloz vlastni kapacitu |
| ee_adr=CP_ADR_LOW; |
| for(Xp_p=&Xp;Xp_p<&Xp+4;Xp_p++) write_eeprom(ee_adr++,*Xp_p); |
| clr_1Line(); |
| lcd_gotoxy(6,1); |
| printf(lcd_putc,"0.00 pF"); |
| wait_release_keys(); // cekej na uvolneni tlacitka |
| } |
| } else |
| { |
| if(f2_sqr<1E2) // bezi oscilator? (kmitocet pod 10Hz povazujeme za nebezici oscilator) |
| { |
| // oscilator NEBEZI |
| clr_1Line(); |
| printf(lcd_putc,Error_Cx_MSG); |
| } else |
| { |
| // oscilator BEZI |
| X=(f1_sqr/f2_sqr-1)*C; // vypocti hodnotu Cx nebo Lx |
| Xv=X-Xp; // odecti vlastni Cp |
| // zobraz hodnotu Cx |
| clr_1Line(); |
| prefix=range(Xv); // uprav rozsah a zjisti cislo radu |
| lcd_gotoxy(6-num_int_digit(Xv),1); // umisti hodnotu tak, aby radova carka zustavala na stejnem miste |
| if(Xv>=0F) lcd_putc(' '); // kladne cislo nema minus, vloz mezeru |
| if(prefix==0) printf(lcd_putc,"%5.2f",Xv); // u pF zobrazuj na 2 mista |
| else printf(lcd_putc,"%6.3f",Xv); // u ostatnich na 3 mista |
| // zobraz jednotky |
| lcd_gotoxy(12,1); |
| lcd_putc(C_PREFIX[prefix]); |
| lcd_putc('F'); |
| } |
| } |
| } // od hlavni smycky (for(;;)) |
| } // measure_C |
| // mereni teploty |
| // |
| #separate |
| void measure_T() |
| { |
| int8 record[10]; // bafr pro ulozeni zaznamu z teplomeru |
| int8 i; |
| int8 stat; // stavovy automat mereni teploty |
| int8 wait; // pro odmereni casu prevodu teplomeru |
| int1 delta; // oznamuje, ze merime rozdil teplot |
| float temp; // zmerena teplota |
| float temp_p; // odecitana hodnota teploty pri mereni rozdilu teplot |
| float temp_v; // vysledna teplota |
| stat=T_MEASURE; // zahajime mereni teploty |
| delta=0; // nemerime teplotni rozdil |
| temp_p=0; // nic od zmerene teploty neodecitame |
| for(;;) |
| { |
| if(freq_done==F_KEY) // stisknuto nejake tlacitko |
| { |
| if(!input(MODE_KEY)) // stisknuto tlacitko mode, koncime |
| { |
| #USE STANDARD_IO(A) |
| #USE STANDARD_IO(B) |
| #USE STANDARD_IO(C) |
| output_float(TM_PIN); // TM jako vstup, muze zustat jako vystup pri preruseni mereni |
| #USE FAST_IO(A) |
| #USE FAST_IO(B) |
| #USE FAST_IO(C) |
| break; |
| } |
| if(!input(NUL_KEY)) // stisknuto tlacitko NULL, budeme merit rozdil teplot, zapamatuj si aktualni teplotu |
| { |
| temp_p=temp; // zapamatuj si aktualni hodnotu teploty |
| delta=1; // oznam, ze merime rozdil teplot |
| stat=T_MEASURE; |
| clr_1line(); |
| lcd_gotoxy(6,1); |
| printf(lcd_putc,"0.0 \20\21C"); // \20 je znak delta \21 je znak stupen |
| wait_release_keys(); // cekej na uvolneni tlacitka |
| } |
| } |
| // STAVOVY AUTOMAT MERENI TEPLOTY |
| switch(stat) |
| { |
| case T_WAIT: |
| if(--wait==0) stat=T_DISPLAY; // cekej az teplomer zmeri frekvenci |
| break; |
| case T_DISPLAY: |
| if(!TM_present()) |
| { |
| // teplomer NENI pritomen |
| clr_1line(); |
| printf(lcd_putc,CONNECT_TEMP_MSG); |
| temp_p=0; // nuluj pripadnou teplotu pro odecteni |
| delta=0; // zrus pripadne mereni rozdilu teplot |
| } else |
| { |
| // teplomer JE pritomen |
| TM_write_byte(0xCC); // prikaz preskoc na dalsi sadu prikazu |
| TM_write_byte(0xBE); // prikaz precti zmerenou teplotu |
| for(i=0;i<9;i++) record[i]=TM_read_byte(); // precti zaznam do buferu |
| if(TM_check_CRC(record,9)) // kontrola CRC |
| { |
| // vypocet teploty viz datasheet |
| record[0]=record[0]>>1; // zahod rad 2^-1, |
| if(bit_test(record[1],0)) bit_set(record[0],7); // je-li cislo zaporne, je treba nejvyssi bit nastavit na 1 |
| temp=(float)make16(record[1],record[0]); // prechod na realna cisla |
| temp=temp-0.25+((0x10-(float)record[6])/0x10); // zvetseni presnosti na 12 bitu |
| temp_v=temp-temp_p; |
| clr_1line(); |
| lcd_gotoxy(6-num_int_digit(temp_v),1); // umisti udaj tak, aby radova carka byla porad na stejnem miste |
| if(temp_v>=0F) lcd_putc(' '); // pri kladne hodnote zobraz misto minus mezeru |
| printf(lcd_putc,"%4.1f ",temp_v); |
| if(delta) lcd_putc('\20'); // pri mereni rozdilu teplot zobraz znak delta |
| lcd_putc('\21'); // znak stupne |
| lcd_putc('C'); |
| } |
| } |
| stat=T_MEASURE; // prejdi do stavu vyvolani mereni teploty |
| case T_MEASURE: |
| if(!TM_present()) |
| { |
| // teplomer NENI pritomen |
| clr_1line(); |
| printf(lcd_putc,CONNECT_TEMP_MSG); |
| temp_p=0; // nuluj pripadnou teplotu pro odecteni |
| delta=0; // zrus pripadne mereni rozdilu teplot |
| } else |
| { |
| // teplomer JE pritomen |
| TM_write_byte(0xCC); // prikaz preskoc na dalsi sadu prikazu |
| TM_write_byte(0x44); // prikaz zmer teplotu |
| #USE STANDARD_IO(A) |
| #USE STANDARD_IO(B) |
| #USE STANDARD_IO(C) |
| output_high(TM_PIN); // vystup do 1, zajistuje napajeni behem mereni teploty |
| #USE FAST_IO(A) |
| #USE FAST_IO(B) |
| #USE FAST_IO(C) |
| wait=CONV_WAIT; |
| stat=T_WAIT; // prejdi do stavu cekani na dokonceni mereni (konverze) |
| } |
| break; |
| } // od switch |
| mfreq_sqr(); // zastupuje zde spozdeni 250ms, ktere lze prerusit stiskem tlacitka |
| } // od for(;;) |
| } // measure_T |
| // generovani pulzu |
| // |
| #separate |
| void pulser() |
| { |
| int8 pulse; |
| #USE STANDARD_IO(A) |
| #USE STANDARD_IO(B) |
| #USE STANDARD_IO(C) |
| output_high(PULSER_PIN); // pin pulseru naorientuj jako vystup |
| #USE FAST_IO(A) |
| #USE FAST_IO(B) |
| #USE FAST_IO(C) |
| INT_TMP=0; // pouzije se jako zrcadlo vystupniho pinu generatoru pulzu (vystup do 0) |
| setup_timer_0(RTCC_EXT_L_TO_H); // zastav TMR0, vadil by nam v preruseni, (preruseni od nej zastavuje TMR1) |
| pulse=read_eeprom(WIDTH_ADR); // vyzvedni naposledy pouzitou sirku impulzu |
| for(;;) |
| { |
| clr_1line(); |
| switch(pulse) |
| { |
| case P_10US: |
| printf(lcd_putc,PULSE_10us_MSG); |
| setup_timer_2(T2_DIV_BY_1,20-1,1); // perioda 20us |
| setup_ccp1(CCP_PWM); // generujeme pomoci PWM jednotky |
| CCP_1 = 20/2; // strida 1:1 |
| break; |
| case P_20US: |
| printf(lcd_putc,PULSE_20us_MSG); |
| setup_timer_2(T2_DIV_BY_1,40-1,1); // perioda 40us |
| setup_ccp1(CCP_PWM); // generujeme pomoci PWM jednotky |
| CCP_1 = 40/2; // strida 1:1 |
| break; |
| case P_50US: |
| printf(lcd_putc,PULSE_50us_MSG); |
| setup_timer_2(T2_DIV_BY_1,100-1,1); // perioda 100us |
| setup_ccp1(CCP_PWM); // generujeme pomoci PWM jednotky |
| CCP_1 = 100/2; // strida 1:1 |
| break; |
| case P_100US: |
| printf(lcd_putc,PULSE_100us_MSG); |
| setup_timer_2(T2_DIV_BY_1,200-1,1); // perioda 200us |
| setup_ccp1(CCP_PWM); // generujeme pomoci PWM jednotky |
| CCP_1 = 200/2; // strida 1:1 |
| break; |
| case P_200US: |
| printf(lcd_putc,PULSE_200us_MSG); |
| setup_timer_2(T2_DIV_BY_4,100-1,1); // perioda 400us |
| setup_ccp1(CCP_PWM); // generujeme pomoci PWM jednotky |
| CCP_1 = 100/2; // strida 1:1 |
| break; |
| case P_500US: |
| printf(lcd_putc,PULSE_500us_MSG); |
| setup_timer_2(T2_DIV_BY_4,250-1,1); // perioda 1000us |
| setup_ccp1(CCP_PWM); // generujeme pomoci PWM jednotky |
| CCP_1 = 250/2; // strida 1:1 |
| break; |
| case P_1MS: |
| setup_timer_2(T2_DISABLED,0,1); |
| printf(lcd_putc,PULSE_1ms_MSG); |
| setup_ccp1(CCP_COMPARE_RESET_TIMER); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| setup_timer_1(T1_INTERNAL | T1_DIV_BY_1); |
| CCP_1 =1000; // pulz 1ms - perioda 2ms |
| enable_interrupts(INT_CCP1); // povol preruseni od CCP1 jednotky |
| break; |
| case P_2MS: |
| printf(lcd_putc,PULSE_2ms_MSG); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| CCP_1 =2000; // pulz 2ms - perioda 4ms |
| break; |
| case P_5MS: |
| printf(lcd_putc,PULSE_5ms_MSG); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| CCP_1 =5000; // pulz 5ms - perioda 10ms |
| break; |
| case P_10MS: |
| printf(lcd_putc,PULSE_10ms_MSG); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| CCP_1 =10000; // pulz 10ms - perioda 20ms |
| break; |
| case P_20MS: |
| printf(lcd_putc,PULSE_20ms_MSG); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| CCP_1 =20000; // pulz 20ms - perioda 40ms |
| break; |
| case P_50MS: |
| printf(lcd_putc,PULSE_50ms_MSG); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| CCP_1 =50000; // pulz 50ms - perioda 100ms |
| break; |
| case P_500MS: |
| printf(lcd_putc,PULSE_500ms_MSG); // generujeme pomoci CPP1 jednotky ( portem se hejbe v preruseni) |
| setup_timer_1(T1_INTERNAL | T1_DIV_BY_8); |
| CCP_1 =62500 ; // pulz 500ms - perioda 1000ms |
| break; |
| case P_5US: |
| printf(lcd_putc,PULSE_5us_MSG); |
| disable_interrupts(INT_CCP1); // zakaz preruseni od CCP1, pro kratke casy ji nepouzivme, pouzivame PWM jednotku |
| setup_timer_2(T2_DIV_BY_1,10-1,1); // perioda 10us |
| setup_ccp1(CCP_PWM); // pouzivame PWM jednotku |
| CCP_1 = 10/2; // strida 1:1 |
| break; |
| } // od switch |
| while(freq_done!=F_KEY); // cekame na stisk nejakeho tlacitka |
| if(!input(MODE_KEY)) // stisknuto tlacitko MODE, koncime |
| { |
| // uved preruseni a nastaveni timeru1 do puvodniho stavu a konci mod |
| setup_timer_0(RTCC_INTERNAL | RTCC_DIV_256); // pro mereni periody vzorkovani (500ms) |
| setup_timer_1(T1_EXTERNAL | T1_DIV_BY_1); // pro citani vzorku// |
| bit_clear(*T1CON,_TMR1ON); // zastav citani impulzu |
| disable_interrupts(INT_CCP1); // cakaz preruseni od CCP1 ednotky |
| #USE STANDARD_IO(A) |
| #USE STANDARD_IO(B) |
| #USE STANDARD_IO(C) |
| output_float(PULSER_PIN); // vystup pulseru jako vystup |
| #USE FAST_IO(A) |
| #USE FAST_IO(B) |
| #USE FAST_IO(C) |
| break; // koncime |
| } |
| if(!input(NUL_KEY)) // stisknuto tlacitko WIDTH |
| { |
| if(pulse==P_5US) pulse=P_10US; // po dosazeni stavu P_5US se posloupnost opakuje |
| else pulse++; |
| write_eeprom(WIDTH_ADR,pulse); // uloz novou sirku impulzu |
| wait_release_keys(); // cekej na uvolneni tlacitek po nastaveni sirky pulzu |
| } |
| } |
| } // pulser |
| /*************************************************/ |
| /******** HLAVNI FUNKCE PROGRAMU ****************/ |
| /*************************************************/ |
| void main() |
| { |
| float f1_sqr; // kvadrat kmitoctu mericiho scilatoru bez pripojene Lx nebo Cx |
| float C; // hodnota kondenzatoru v mericim oscilatoru v pF (ziska se kalibraci) |
| float L; // hodnota indukcnosti v mericim oscilatoru v nH (ziska se kalibraci) |
| int8 MODE; // promenna stavoveho automatu hlavni smycky (mod mereni) |
| int1 _calib; // priznak, ze jiz doslo ke kalibraci |
| // nastaveni citacu |
| port_b_pullups(TRUE); // zapnu puulupy na brane B (pro tlacitka) |
| setup_timer_0(RTCC_INTERNAL | RTCC_DIV_256); // pro mereni periody vzorkovani (500ms) |
| setup_timer_1(T1_EXTERNAL | T1_DIV_BY_1); // pro citani impulzu z mericiho oscilatoru |
| bit_clear(*T1CON,_TMR1ON); // zastav citani impulzu |
| //nastaveni vstupu a vystupu |
| #USE STANDARD_IO(A) |
| #USE STANDARD_IO(B) |
| #USE STANDARD_IO(C) |
| output_low(RE1_A); // signaly relatek jako vystupy a do 0 |
| output_low(RE1_B); |
| output_low(RE2_A); |
| output_low(RE2_B); |
| output_float(PULSER_PIN); // signal pro pulser jako vstup |
| output_float(TM_PIN); // vstup pro TM jako vstup |
| output_float(TM_PULLUP); // zapni pullup pro TM |
| output_low(PIN_C1); // nepouzit,dej do 0 |
| output_low(PIN_C3); // nepouzit,dej do 0 |
| #USE FAST_IO(A) |
| #USE FAST_IO(B) |
| #USE FAST_IO(C) |
| lcd_init(); |
| lcd_define_char(0,LCD_CHAR_DELTA); // nadefinovani znaku delta |
| lcd_define_char(1,LCD_CHAR_DEC); // nadefinovani znaku stupen |
| rele_measure_C(); // rele do stavu odpojeni kalibracniho kondenzatoru a oscilator musi bezet |
| input_b(); |
| enable_interrupts(INT_TIMER1); // povol preruseni od citace impulzu mericiho oscilatoru |
| enable_interrupts(INT_RB); // povol preruseni od tlacitek |
| enable_interrupts(GLOBAL); |
| #ifdef FREQ |
| // pro kalibraci mereni kmitoctu |
| for(;;) { |
| f1_sqr=mfreq_sqr(); |
| lcd_putc("\f"); |
| printf(lcd_putc,"F=%6.2f KHz",f1_sqr*1E-3); |
| delay_ms(500); |
| } |
| #endif |
| // UVOD |
| lcd_putc("\f"); |
| printf(lcd_putc,VERSION_MSG); |
| lcd_gotoxy(1,2); |
| printf(lcd_putc,COPYRIGHT_MSG); |
| delay_ms(FREQ_CALM_TIME); // pockej na ustaleni oscilatoru |
| f1_sqr=mfreq_sqr(); // zmer f1 |
| _calib=0; // kalibrace neni provedena |
| freq_done=F_PEACE; |
| mode=read_eeprom(MODE_ADR); // vyzvedni naposledy pouzity mod |
| // VLASTNI MERICI SMYCKA |
| for(;;) |
| { |
| switch(mode) |
| { |
| case MODE_C: // mereni Cx |
| if(!_calib) |
| { |
| calibration(f1_sqr,C,L); // proved kalibraci (vypocti L a C) |
| _calib=1; // poznamenej si, ze se kalibrace uz provedla |
| } |
| rele_measure_C(); |
| lcd_gotoxy(1,2); |
| printf(lcd_putc,MODE_CX_NULL_MSG); |
| measure_C(f1_sqr,C,L); |
| // prechazime na mereni L |
| mode=MODE_L; |
| break; |
| case MODE_L: // mereni Lx |
| if(!_calib) |
| { |
| calibration(f1_sqr,C,L); // proved kalibraci (vypocti L a C) |
| _calib=1; // poznamenej si, ze se kalibrace uz provedla |
| } |
| rele_measure_L(); |
| lcd_gotoxy(1,2); |
| printf(lcd_putc,MODE_LX_NULL_MSG); |
| measure_L(f1_sqr,C,L); |
| // prechazime na mereni T |
| mode=MODE_T; |
| break; |
| case MODE_T: // merei teploty |
| rele_calib(); |
| lcd_gotoxy(1,2); |
| printf(lcd_putc,MODE_TMP_NULL_MSG); |
| bit_clear(*T1CON,_TMR1ON); // zastav TMR1, vadil by |
| measure_T(); |
| // prechazime na generovani pulzu |
| mode=MODE_P; |
| break; |
| case MODE_P: // generovani pulzu |
| rele_calib(); |
| lcd_gotoxy(1,2); |
| printf(lcd_putc,MODE_PLZ_WIDTH_MSG); |
| pulser(); |
| // prechazime na mereni C |
| mode=MODE_C; |
| break; |
| } // od switch |
| write_eeprom(MODE_ADR,mode); // uloz ktery mod je nyni aktivni |
| wait_release_keys(); // cekej na uvolneni tlacitek |
| delay_ms(10); |
| } // for(;;) |
| } // main |
| // End of File |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/lc.h |
|---|
| 0,0 → 1,132 |
| //********************************************************************** |
| // LCT-METER/PULSER - HLAVICKOVY SOUBOR |
| //********************************************************************** |
| // (c) OK1XGL 2004 |
| // verze 1.00 - uvodni verze 10.1.2004 |
| // verze 1.01 - pridano ukladani vlastni Cp/Lp do pameti EEPROM |
| // - pridano ukladani stavu (mod, parametry modu ) do pameti EEROM |
| // |
| #use delay (clock=4000000,restart_wdt) |
| #fuses XT,NOWDT,NOPROTECT,NOBROWNOUT,NOLVP |
| // LCD display |
| #define LCD_RS PIN_A0 /* rizeni registru LCD displeje */ |
| #define LCD_E PIN_A1 /* enable LCD displeje */ |
| #define LCD_DATA_LSB PIN_A2 /* pripojeni LSB bitu datoveho portu LCD displeje (celkem 4 bity vzestupne za sebou) */ |
| #define LCD_CHAR_DELTA "\x80\x80\x80\x04\x0A\x11\x1F\x80" /* symbol delta */ |
| #define LCD_CHAR_DEC "\x0E\x0A\x0E\x80\x80\x80\x80\x80" /* symbol stupen */ |
| // rele pro prepinani modu mereni |
| #define RE1_A PIN_C4 |
| #define RE1_B PIN_C7 |
| #define RE2_A PIN_C5 |
| #define RE2_B PIN_C6 |
| #define RELE_PULSE 10 /* delka prepinaciho pulzu pro rele v ms jednotkach */ |
| // tlacitka (libovolne na brane B) |
| #define NUL_KEY PIN_B7 /* pro nulovani pocatecni C nebo L NEBO T, pri generovani pulzu prepina sirku pulzu */ |
| #define MODE_KEY PIN_B6 /* pro prepinani modu mereni */ |
| // pulser (nelze zmenit, vystup PWM a CPP1 jednotky je jen zde) |
| #define PULSER_PIN PIN_C2 /* vystup pulseru */ |
| // teplomer (POZOR NA VSTUPY SE SHMIDTOVYM OBVODEM, NELZE POUZIT!!!!!) |
| #define TM_PIN PIN_B0 /* pin, na kterem je teplomer pripojen */ |
| #bit TM_PIN_BIT = PORTB.0 /* totez, ale definovan jako bit */ |
| #define TM_PULLUP PIN_B1 /* pullup pro teplomer */ |
| // konstanty pro mereni frekvence |
| #define TIME_1S_L 0xff-194 /* urcuje dobu, za kterou vyprsi timer0 (zde 50ms),meri interval doby mereni frekvence */ |
| #define TIME_1S_H 5 /* rozsiruje timer0, aby bylo mozne odmerit delsi casy zde 250ms */ |
| #define CORIG 21 /* pro korekci intervalu doby mereni frekvence aby byla presne (vliv doby preruseni a nepresnost oscilatoru) */ |
| #define FREQ_CALM_TIME 2000 /* cas pro ustaleni frekvence oscialtoru v ms jednotkach */ |
| #define C_CALIB 996 /* hodnota kalibracniho kondenzatoru v pF */ |
| #define F_CORRECT 4 /* korekce zmereneho kmitoctu, aby byl v Hz a ne v napr. v 4Hz jednotkach jako zde */ |
| // adresy parametru v pameti EEROM |
| #define CP_ADR_LOW 0 /* pro ulozeni vlastni kapacity 4 bajty*/ |
| #define LP_ADR_LOW 4 /* pro ulozeni vlastni indukcnosti 4 bajty*/ |
| #define MODE_ADR 8 /* uchovani modu zarizeni viz promenna mode */ |
| #define WIDTH_ADR 9 /* uchovani sirky pulzu v modu pulser viz promenna pulse_width */ |
| // konstanty pro mereni teploty |
| #define CONV_WAIT 4 /* cas cekani az teplomer zmeri teplotu v jednotkach doby citani impulzu pri mereni frekvence */ |
| // konstanty pro promennou mode ve funkci main() |
| #define MODE_L 0 /* mereni indukcnosti */ |
| #define MODE_C 1 /* mereni kapacity */ |
| #define MODE_T 2 /* mereni teploty */ |
| #define MODE_P 3 /* generator pulzu */ |
| // konstanty pro promennou pulse_width ve funkci pulser() |
| #define P_10US 0 |
| #define P_20US 1 |
| #define P_50US 2 |
| #define P_100US 3 |
| #define P_200US 4 |
| #define P_500US 5 |
| #define P_1MS 6 |
| #define P_2MS 7 |
| #define P_5MS 8 |
| #define P_10MS 9 |
| #define P_20MS 10 |
| #define P_50MS 11 |
| #define P_500MS 12 |
| #define P_5US 13 |
| // konstanty pro promennou status ve funkci measure_T() |
| #define T_WAIT 0 /* odmer 1000 ms */ |
| #define T_MEASURE 1 /* posli prikaz ke zmereni teploty */ |
| #define T_DISPLAY 2 /* precti zmerenou teplotu a zobraz ji */ |
| // konstanty pro promennou freq_done |
| #define F_PEACE 0 /* klidovy stav tuto hodnotu nemenit !!!! */ |
| #define F_DONE 1 /* mereni frekvence dokonceno */ |
| #define F_KEY 2 /* stisknuto tlacitko, mereni frekvence preruseno */ |
| // texty zobrazovane na 1.radku LCD displeje |
| #define VERSION_MSG " Version 1.01" |
| #define COPYRIGHT_MSG "(c) OK1XGL 2004" |
| #define CALIB_MSG " Calibration" |
| #define CONNECT_LX_MSG " Connect Lx !!!" |
| #define ERROR_CX_MSG " Error Cx !!!" |
| #define CONNECT_TEMP_MSG " Connect temp" |
| #define PULSE_5us_MSG " 5us (100KHz)" |
| #define PULSE_10us_MSG " 10us (50KHz)" |
| #define PULSE_20us_MSG " 20us (25KHz)" |
| #define PULSE_50us_MSG " 50us (10KHz)" |
| #define PULSE_100us_MSG " 100us (5KHz)" |
| #define PULSE_200us_MSG " 200us (2.5KHz)" |
| #define PULSE_500us_MSG " 500us (1KHz)" |
| #define PULSE_1ms_MSG " 1ms (500Hz)" |
| #define PULSE_2ms_MSG " 2ms (250Hz)" |
| #define PULSE_5ms_MSG " 5ms (100Hz)" |
| #define PULSE_10ms_MSG " 10ms (50Hz)" |
| #define PULSE_20ms_MSG " 20ms (25Hz)" |
| #define PULSE_50ms_MSG " 50ms (10Hz)" |
| #define PULSE_500ms_MSG " 500ms (1Hz)" |
| // texty zobrazovane na 2. radku LCD displeje |
| #define MODE_CX_NULL_MSG "MODE Cx NULL" |
| #define MODE_LX_NULL_MSG "MODE Lx NULL" |
| #define MODE_TMP_NULL_MSG "MODE +TMP NULL" |
| #define MODE_PLZ_WIDTH_MSG "MODE +PLZ WIDTH" |
| // konstantni pole pro prefix radu |
| int8 const C_PREFIX[4] = {'p','n','u','m'}; |
| char const L_PREFIX[4] = {'n','u','m',' '}; |
| // uvodni nastaveni parametru v pameti eeprom |
| #rom 0x2100={0,0,0,0,0,0,0,0,MODE_C,P_5US} |
| // globalni promenne |
| int8 freq_done; // stav procesu mereni frekvence |
| int8 W_TMP; // pro ulozeni W v prerusovaci rutine |
| int8 F_TMP; // pro ulozeni F v prerusovaci rutine |
| int8 PCLATH_TMP; // pro ulozeni PCLATH v prerusovaci rutine |
| int8 INT_TMP; // pomocna promenna pro preruseni |
| int8 sampler_H; // rozsireni timeru0 ,ktery meri dobu citani impulzu mericiho oscilatoru v tmr0 jednotkach |
| int8 counter_H; // rozsireni timeru1, ktery slouzi pro citani impulzu mericiho oscilatoru |
| // End of File |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/lib/16f877_reg.h |
|---|
| 0,0 → 1,288 |
| //////////////////////////////////////////////////////////////////////////// |
| // //// |
| // DEFINICE REGISTRU PROCESORU PIC16F877 //// |
| // //// |
| //////////////////////////////////////////////////////////////////////////// |
| // //// |
| // PEFI S.ICZ a.s 2002 //// |
| // //// |
| // Verze 1.0 //// |
| // //// |
| //////////////////////////////////////////////////////////////////////////// |
| // registry v bance 0 |
| #define INDF 0x00 |
| #define TMR0 0x01 |
| #define PCL 0x02 |
| #define STATUS 0x03 |
| #define FSR 0x04 |
| #define PORTA 0x05 |
| #define PORTB 0x06 |
| #define PORTC 0x07 |
| #define PORTD 0x08 |
| #define PORTE 0x09 |
| #define PCLATH 0x0A |
| #define INTCON 0x0B |
| #define PIR1 0x0C |
| #define PIR2 0x0D |
| #define TMR1L 0x0E |
| #define TMR1H 0x0F |
| #define T1CON 0x10 |
| #define TMR2 0x11 |
| #define T2CON 0x12 |
| #define SSPBUF 0x13 |
| #define SSPCON 0x14 |
| #define CCPR1L 0x15 |
| #define CCPR1H 0x16 |
| #define CCP1CON 0x17 |
| #define RCSTA 0x18 |
| #define TXREG 0x19 |
| #define RCREG 0x1A |
| #define CCPR2L 0x1B |
| #define CCPR2H 0x1C |
| #define CCP2CON 0x1D |
| #define ADRESH 0x1E |
| #define ADCON0 0x1F |
| // registry v bance 1 |
| #define OPTION 0x81 |
| #define TRISA 0x85 |
| #define TRISB 0x86 |
| #define TRISC 0x87 |
| #define TRISD 0x88 |
| #define TRISE 0x89 |
| #define PIE1 0x8C |
| #define PIE2 0x8D |
| #define PCON 0x8E |
| #define SSPCON2 0x91 |
| #define PR2 0x92 |
| #define SSPADD 0x93 |
| #define SSPSTAT 0x94 |
| #define TXSTA 0x98 |
| #define SPBRG 0x99 |
| #define ADRESL 0x9E |
| #define ADCON1 0x9F |
| // registry v bance 2 |
| #define EEDATA 0x10C |
| #define EEADR 0x10D |
| #define EEDATH 0x10E |
| #define EEADRH 0x10F |
| // registry v bance 3 |
| #define EECON1 0x18C |
| #define EECON2 0x18D |
| // bity v registru STATUS |
| #define _IRP 7 |
| #define _RP1 6 |
| #define _RP0 5 |
| #define _NOT_TO 4 |
| #define _NOT_PD 3 |
| #define _Z 2 |
| #define _DC 1 |
| #define _C 0 |
| // bity v registru INTCON |
| #define _GIE 7 |
| #define _PEIE 6 |
| #define _T0IE 5 |
| #define _INTE 4 |
| #define _RBIE 3 |
| #define _T0IF 2 |
| #define _INTF 1 |
| #define _RBIF 0 |
| // bity v registru PIR1 |
| #define _PSPIF 7 |
| #define _ADIF 6 |
| #define _RCIF 5 |
| #define _TXIF 4 |
| #define _SSPIF 3 |
| #define _CCP1IF 2 |
| #define _TMR2IF 1 |
| #define _TMR1IF 0 |
| // bity v registru PIR2 |
| #define _EEIF 4 |
| #define _BCLIF 3 |
| #define _CCP2IF 0 |
| // bity v registru T1CON |
| #define _T1CKPS1 5 |
| #define _T1CKPS0 4 |
| #define _T1OSCEN 3 |
| #define _NOT_T1SYNC 2 |
| #define _T1SYNC 2 |
| #define _TMR1CS 1 |
| #define _TMR1ON 0 |
| // bity v registru T2CON |
| #define _TOUTPS3 6 |
| #define _TOUTPS2 5 |
| #define _TOUTPS1 4 |
| #define _TOUTPS0 3 |
| #define _TMR2ON 2 |
| #define _T2CKPS1 1 |
| #define _T2CKPS0 0 |
| // bity v registru SSPCON |
| #define _WCOL 7 |
| #define _SSPOV 6 |
| #define _SSPEN 5 |
| #define _CKP 4 |
| #define _SSPM3 3 |
| #define _SSPM2 2 |
| #define _SSPM1 1 |
| #define _SSPM0 0 |
| // bity v registru CCP1CON |
| #define _CCP1X 5 |
| #define _CCP1Y 4 |
| #define _CCP1M3 3 |
| #define _CCP1M2 2 |
| #define _CCP1M1 1 |
| #define _CCP1M0 0 |
| // bity v registru RCSTA |
| #define _SPEN 7 |
| #define _RX9 6 |
| #define _SREN 5 |
| #define _CREN 4 |
| #define _ADDEN 3 |
| #define _FERR 2 |
| #define _OERR 1 |
| #define _RX9D 0 |
| // bity registru CCP2CON |
| #define _CCP2X 5 |
| #define _CCP2Y 4 |
| #define _CCP2M3 3 |
| #define _CCP2M2 2 |
| #define _CCP2M1 1 |
| #define _CCP2M0 0 |
| // bity v registru ADCON0 |
| #define _ADCS1 7 |
| #define _ADCS0 6 |
| #define _CHS2 5 |
| #define _CHS1 4 |
| #define _CHS0 3 |
| #define _GO 2 |
| #define _NOT_DONE 2 |
| #define _GO_DONE 2 |
| #define _ADON 0 |
| // bity v registru OPTION |
| #define _NOT_RBPU 7 |
| #define _INTEDG 6 |
| #define _T0CS 5 |
| #define _T0SE 4 |
| #define _PSA 3 |
| #define _PS2 2 |
| #define _PS1 1 |
| #define _PS0 0 |
| // bity v registru TRISE |
| #define _IBF 7 |
| #define _OBF 6 |
| #define _IBOV 5 |
| #define _PSPMODE 4 |
| #define _TRISE2 2 |
| #define _TRISE1 1 |
| #define _TRISE0 0 |
| // bity v registru PIE1 |
| #define _PSPIE 7 |
| #define _ADIE 6 |
| #define _RCIE 5 |
| #define _TXIE 4 |
| #define _SSPIE 3 |
| #define _CCP1IE 2 |
| #define _TMR2IE 1 |
| #define _TMR1IE 0 |
| // bity v registru PIE2 |
| #define _EEIE 4 |
| #define _BCLIE 3 |
| #define _CCP2IE 0 |
| // bity v registru PCON |
| #define _NOT_POR 1 |
| #define _NOT_BOR 0 |
| // bity v registu |
| #define _GCEN 7 |
| #define _ACKSTAT 6 |
| #define _ACKDT 5 |
| #define _ACKEN 4 |
| #define _RCEN 3 |
| #define _PEN 2 |
| #define _RSEN 1 |
| #define _SEN 0 |
| //bity v registru SSPSTAT |
| #define _SMP 7 |
| #define _CKE 6 |
| #define _D 5 |
| #define _I2C_DATA 5 |
| #define _NOT_A 5 |
| #define _NOT_ADDRESS 5 |
| #define _D_A 5 |
| #define _DATA_ADDRESS 5 |
| #define _P 4 |
| #define _I2C_STOP 4 |
| #define _S 3 |
| #define _I2C_START 3 |
| #define _R 2 |
| #define _I2C_READ 2 |
| #define _NOT_W 2 |
| #define _NOT_WRITE 2 |
| #define _R_W 2 |
| #define _READ_WRITE 2 |
| #define _UA 1 |
| #define _BF 0 |
| // bity v registru TXSTA |
| #define CSRC 7 |
| #define TX9 6 |
| #define TXEN 5 |
| #define SYNC 4 |
| #define BRGH 2 |
| #define TRMT 2 |
| #define TX9D 0 |
| // bity v registru ADCON1 |
| #define _ADFM 7 |
| #define _PCFG3 3 |
| #define _PCFG2 2 |
| #define _PCFG1 2 |
| #define _PCFG0 0 |
| // bity v registru EECON1 |
| #define _EEPGD 7 |
| #define _WRERR 3 |
| #define _WREN 2 |
| #define _WR 1 |
| #define _RD 0 |
| // masky pro nastaveni orientace I/O pinu |
| #define PIN0_IN 0x01 |
| #define PIN1_IN 0x02 |
| #define PIN2_IN 0x04 |
| #define PIN3_IN 0x08 |
| #define PIN4_IN 0x10 |
| #define PIN5_IN 0x20 |
| #define PIN6_IN 0x40 |
| #define PIN7_IN 0x80 |
| #define PIN0_OUT ~0x01 |
| #define PIN1_OUT ~0x02 |
| #define PIN2_OUT ~0x04 |
| #define PIN3_OUT ~0x08 |
| #define PIN4_OUT ~0x10 |
| #define PIN5_OUT ~0x20 |
| #define PIN6_OUT ~0x40 |
| #define PIN7_OUT ~0x80 |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/lib/TM.C |
|---|
| 0,0 → 1,189 |
| //////////////////////////////////////////////////////////////////////////// |
| // |
| // KNIHOVNA PRO PRACI S TOUCH MEMORY FY DALLAS |
| // |
| //////////////////////////////////////////////////////////////////////////// |
| // |
| // PEFI S.ICZ a.s. 2002, 2003 |
| // |
| // Verze 1.0 |
| // 1.1 - pridana podpora vypinani pullupu |
| // pres pin TOUCH_PULLUP_PIN |
| // 1.2 - vyrazena podpora pullupu, do obecne knihovny nepatri |
| // - funkce checkCRC se stala soucasti fce read_sn |
| // - upraveny nazvy funkci, zpetna kompatibilita neni potreba |
| // 1.3 - pridana samostatna funkce pro kontrolu CRC |
| // |
| /////////////////////////////////////////////////////////////////////////// |
| // |
| // funkce: |
| // int8 TM_present() |
| // - vraci TRUE, pokud je TM pritomna |
| // |
| // int8 TM_read_byte() |
| // - precte bajt z TM |
| // |
| // int8 TM_write_byte(int8 data) |
| // - zapise bajt do TM a vraci TRUE, pokud se to povedlo |
| // |
| // int8 TM_read_sn(int8 *sn) |
| // - precte seriove cislo z TM pomoci prikazu 0x33 |
| // - vraci TRUE, pokud je SN platne (spravne CRC) |
| // |
| // definice a prepinace |
| // #define TM_PIN /* pin, na kterem je touch memory pripojena */ |
| // #bit TM_PIN_BIT /* totez, ale definovan jako bit */ |
| // |
| // |
| // defaultni definice |
| #ifndef TM_PIN |
| #define TM_PIN PIN_B0 |
| #bit TM_PIN_BIT = PORTB.0 |
| #endif |
| /****************************************************************************************************/ |
| // Privatni sekce, cist jen v pripade, ze neco nefunguje |
| /****************************************************************************************************/ |
| // precte bajt z touch memory |
| // |
| int8 TM_read_byte() { |
| int8 i,data; |
| for(i=0;i<8;++i) { |
| output_low(TM_PIN); |
| delay_us(14); |
| output_float(TM_PIN); |
| delay_us(5); |
| shift_right(&data,1,input(TM_PIN)); |
| delay_us(100); |
| } |
| return(data); |
| } |
| // zapise bajt do touch memory |
| // |
| int8 TM_write_byte(int8 data) { |
| int8 i; |
| for(i=0;i<8;++i) { |
| output_low(TM_PIN); |
| delay_us(10); |
| if(shift_right(&data,1,0)) { |
| output_float(TM_PIN); |
| delay_us(1); // k vuli nabehu jednicky pres pullup |
| if(!TM_PIN_BIT) return(0); |
| } else { |
| output_low(TM_PIN); |
| if(TM_PIN_BIT) return(0); // k vuli nabehu nuly |
| } |
| delay_us(50); |
| output_float(TM_PIN); |
| // delay_us(50); |
| } |
| return(TRUE); |
| } |
| // testuje pritomnost touch memory, pri pritomnosti vraci TRUE |
| // |
| int8 TM_present() { |
| int1 present; |
| output_low(TM_PIN); |
| delay_us(500); |
| output_float(TM_PIN); |
| if(!input(TM_PIN)) |
| return(FALSE); |
| delay_us(65); |
| present=!input(TM_PIN); |
| delay_us(240); |
| if(present) |
| return(TRUE); |
| else |
| return(FALSE); |
| } |
| // zkontroluje CRC zaznamu, vraci TRUE, pokud je zanam spravny |
| // |
| int8 TM_check_CRC(unsigned int8 *sn, unsigned int8 num) |
| { |
| #ifdef CRC_TAB |
| // tabulka pro vypocet CRC |
| const int8 TouchCRC[256]= { |
| 0, 94, 188, 226, 97, 63, 221, 131, 194, 156, 126, 32, 163, 253, 31, 65, |
| 157, 195, 33, 127, 252, 162, 64, 30, 95, 1, 227, 189, 62, 96, 130, 220, |
| 35, 125, 159, 193, 66, 28, 254, 160, 225, 191, 93, 3, 128, 222, 60, 98, |
| 190, 224, 2, 92, 223, 129, 99, 61, 124, 34, 192, 158, 29, 67, 161, 255, |
| 70, 24, 250, 164, 39, 121, 155, 197, 132, 218, 56, 102, 229, 187, 89, 7, |
| 219, 133, 103, 57, 186, 228, 6, 88, 25, 71, 165, 251, 120, 38, 196, 154, |
| 101, 59, 217, 135, 4, 90, 184, 230, 167, 249, 27, 69, 198, 152, 122, 36, |
| 248, 166, 68, 26, 153, 199, 37, 123, 58, 100, 134, 216, 91, 5, 231, 185, |
| 140, 210, 48, 110, 237, 179, 81, 15, 78, 16, 242, 172, 47, 113, 147, 205, |
| 17, 79, 173, 243, 112, 46, 204, 146, 211, 141, 111, 49, 178, 236, 14, 80, |
| 175, 241, 19, 77, 206, 144, 114, 44, 109, 51, 209, 143, 12, 82, 176, 238, |
| 50, 108, 142, 208, 83, 13, 239, 177, 240, 174, 76, 18, 145, 207, 45, 115, |
| 202, 148, 118, 40, 171, 245, 23, 73, 8, 86, 180, 234, 105, 55, 213, 139, |
| 87, 9, 235, 181, 54, 104, 138, 212, 149, 203, 41, 119, 244, 170, 72, 22, |
| 233, 183, 85, 11, 136, 214, 52, 106, 43, 117, 151, 201, 74, 20, 246, 168, |
| 116, 42, 200, 150, 21, 75, 169, 247, 182, 232, 10, 84, 215, 137, 107, 53}; |
| #else |
| int8 j,k,l; // promenne potrebne pro algoritmicky vypocet CRC |
| #endif |
| int8 CRC; // prubezne CRC |
| int8 i; |
| #ifdef CRC_TAB |
| // vypocet CRC tabulkou |
| CRC=0; |
| for(i=0;i<num;i++) CRC=TouchCRC[CRC ^ *(sn+i)]; |
| if(CRC!=*(sn+7)) return(0); |
| else return(1); |
| #else |
| // vypocet CRC algoritmicky |
| CRC=0; |
| for(i=0 ;i<num;i++) { |
| k=*(sn+i); |
| #asm |
| movlw 8 |
| movwf j // citac bitu |
| loop: |
| movf k,W // presun bajt do W |
| xorwf CRC,W // prixoruj CRC a uloz do w |
| movwf l |
| rrf l,F // naxorovany bit do CY |
| movf CRC,W |
| btfsc 3.0 // preskoc, je-li CY nulove |
| xorlw 0x18 |
| movwf CRC |
| rrf CRC,F // rotuj CRC |
| rrf k // na dalsi bit |
| decfsz j,F |
| goto loop |
| #endasm |
| } |
| if(CRC!=0) return(0); |
| else return(1); |
| #endif |
| } |
| // precte seriove cislo z touch memory, vraci TRUE je-li platne (spravne CRC) |
| // |
| int8 TM_read_sn(unsigned int8 *sn) |
| { |
| int8 i; |
| // precteni SN z touch memory |
| TM_write_byte(0x33); |
| for(i=0;i<8;i++) *(SN+i)=TM_read_byte(); // precti SN do buferu |
| if(*sn==0) return(0); // family kod je nulovy a to je chyba, timto nahrazujeme precteni samych nul, coz ma platne CRC, ale neexistuje |
| return(TM_check_CRC(SN,8)); |
| } |
| // End of FIle |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/LCTmetr01A/SW/lib/lcd.c |
|---|
| 0,0 → 1,300 |
| // LCD modul pro ovladani dvouradkoveho LCD modulu se standardnim Hitachi radicem |
| // (c)miho 2002 |
| // |
| // Historie: |
| // |
| // 0.00 Uvodni verze se snadnou definici portu LCD displeje |
| // 0.01 Oprava portu (zapomenute stare identifikatory) |
| // 0.02 Doplnena moznost pripojeni datoveho portu LCD na libovolne porty |
| // |
| // |
| // Funkce: |
| // |
| // lcd_init() inicializuje LCD displej a porty, nutno volat jako prvni |
| // |
| // lcd_putc(c) zapis snaku do lcd displeje, zpracovava nasledujici ridici znaky |
| // \f = \x0C - nova stranka - smazani displeje |
| // \n = \x0A - odradkovani (prechod na druhou radku) |
| // \b = \x08 - backspace - posunuti kurzoru o 1 pozici zpet |
| // \r = \x0D - goto home to position 1,1 |
| // \0 .. \7 - definovatelne znaky v pozicich 0 az 7 v CGRAM |
| // \20 .. \27 - alternativne zapsane znaky (oktalove) v pozicich 0 az 7 CGRAM |
| // Pozor na to, ze funkce printf konci tisk pokud narazi na \0 (konec retezce) |
| // |
| // lcd_gotoxy(x,y) presune kurzor na uvedenou adresu |
| // nekontroluje parametry |
| // |
| // lcd_cursor_on zapne kurzor |
| // lcd_cursor_off vypne kurzor |
| // |
| // lcd_define_char(Index, Def) Makro, ktere definuje znaky od pozice Index obsahem definicniho |
| // retezce Def. Kazdych 8 znaku retezce Def definuje dalsi znak v CGRAM. |
| // Kapacita CGRAM je celkem 8 znaku s indexem 0 az 7. |
| // Na konci se provede lcd_gotoxy(1,1). |
| // Na konci teto knihovny je priklad pouziti definovanych znaku |
| // |
| // |
| // Definice portu: // Datovy port displeje pripojeny na 4 bity za sebou na jeden port |
| // |
| // #define LCD_RS PIN_B2 // rizeni registru LCD displeje |
| // #define LCD_E PIN_B1 // enable LCD displeje |
| // #define LCD_DATA_LSB PIN_C2 // pripojeni LSB bitu datoveho portu LCD displeje (celkem 4 bity vzestupne za sebou) |
| // |
| // |
| // Alternativni definice: // Datovy port displeje pripojeny na libovolne 4 bitove porty (vede na kod delsi asi o 25 slov) |
| // |
| // #define LCD_RS PIN_B2 // rizeni registru LCD displeje |
| // #define LCD_E PIN_B1 // enable LCD displeje |
| // #define LCD_D0 PIN_C2 // D0 - datove bity pripojene na libovolne porty |
| // #define LCD_D1 PIN_C3 // D1 |
| // #define LCD_D2 PIN_C4 // D2 |
| // #define LCD_D3 PIN_C5 // D3 |
| // Privatni sekce, cist jen v pripade, ze neco nefunguje |
| #ifdef LCD_DATA_LSB |
| // Generovane defince portu pro ucely teto knihovny aby kod generoval spravne IO operace a soucasne |
| // bylo mozne jednoduse deklarovat pripojene piny LCD displeje pri pouziti teto knihovny. Problem spociva |
| // v tom, ze se musi spravne ridit smery portu a soucasne datovy port zabira jen 4 bity ze zadaneho portu |
| // |
| #define LCD_SHIFT (LCD_DATA_LSB&7) // pocet bitu posuvu datoveho kanalu v datovem portu |
| #define LCD_PORT (LCD_DATA_LSB>>3) // adresa LCD datoveho portu |
| #define LCD_TRIS (LCD_PORT+0x80) // adresa prislusneho TRIS registru |
| #define LCD_MASK (0xF<<LCD_SHIFT) // maska platnych bitu |
| // |
| #if LCD_SHIFT>4 // kontrola mezi |
| #error LCD data port LSB bit not in range 0..4 |
| #endif |
| #endif |
| // Definice konstant pro LCD display |
| // |
| #define LCD_CURSOR_ON_ 0x0E // kurzor jako blikajici radka pod znakem |
| #define LCD_CURSOR_OFF_ 0x0C // zadny kurzor |
| #define LCD_LINE_2 0x40 // adresa 1. znaku 2. radky |
| // Definice rezimu LCD displeje |
| // |
| BYTE const LCD_INIT_STRING[4] = |
| { |
| 0x28, // intrfejs 4 bity, 2 radky, font 5x7 |
| LCD_CURSOR_OFF_, // display on, kurzor off, |
| 0x01, // clear displeje |
| 0x06 // inkrement pozice kurzoru (posun kurzoru doprava) |
| }; |
| // Odesle nibble do displeje (posle data a klikne signalem e) |
| // |
| void lcd_send_nibble( BYTE n ) |
| { |
| #ifdef LCD_DATA_LSB |
| // data jsou za sebou na 4 bitech jednoho portu |
| *LCD_PORT = (*LCD_PORT & ~LCD_MASK) | ((n << LCD_SHIFT) & LCD_MASK); // nastav datove bity portu a ostatni zachovej |
| #else |
| // data jsou na libovolnych 4 bitech libovolnych portu |
| output_bit(LCD_D0,bit_test(n,0)); |
| output_bit(LCD_D1,bit_test(n,1)); |
| output_bit(LCD_D2,bit_test(n,2)); |
| output_bit(LCD_D3,bit_test(n,3)); |
| #endif |
| output_bit(LCD_E,1); // vzestupna hrana |
| delay_us(1); // pockej alespon 450ns od e nebo alespon 195ns od dat |
| output_bit(LCD_E,0); // sestupna hrana (minimalni perioda e je 1us) |
| } |
| // Odesle bajt do registru LCD |
| // |
| // Pokud je Adr=0 .. instrukcni registr |
| // Pokud je Adr=1 .. datovy registr |
| // |
| void lcd_send_byte( BOOLEAN Adr, BYTE n ) |
| { |
| output_bit(LCD_RS,Adr); // vyber registr |
| swap(n); |
| lcd_send_nibble(n); // posli horni pulku bajtu |
| swap(n); |
| lcd_send_nibble(n); // posli spodni pulku bajtu |
| delay_us(40); // minimalni doba na provedeni prikazu |
| } |
| // Provede inicializaci LCD displeje, smaze obsah a nastavi mod displeje |
| // |
| // Tato procedura se musi volat pred pouzitim ostatnich lcd_ procedur |
| // |
| void lcd_init() |
| { |
| int i; // pocitadlo cyklu |
| delay_ms(20); // spozdeni pro provedeni startu displeje po zapnuti napajeni |
| #ifdef LCD_DATA_LSB |
| // data jsou na 4 bitech za sebou, nastav smer pro vsechny dalsi prenosy |
| *LCD_TRIS = *LCD_TRIS & ~LCD_MASK; // nuluj odpovidajici bity tris registru datoveho portu LCD |
| #endif |
| output_bit(LCD_RS,0); // nastav jako vystup a nastav klidovy stav |
| output_bit(LCD_E, 0); // nastav jako vystup a nastav klidovy stav |
| for (i=0; i<3; i++) // nastav lcd do rezimu 8 bitu sbernice |
| { |
| delay_ms(2); // muze byt rozdelany prenos dat (2x 4 bity) nebo pomaly povel |
| lcd_send_nibble(3); // rezim 8 bitu |
| } |
| delay_us(40); // cas na zpracovani |
| lcd_send_nibble(2); // nastav rezim 4 bitu (plati od nasledujiciho prenosu) |
| delay_us(40); // cas na zpracovani |
| for (i=0;i<3;i++) // proved inicializaci (nastaveni modu, smazani apod) |
| { |
| lcd_send_byte(0,LCD_INIT_STRING[i]); |
| delay_ms(2); |
| } |
| } |
| // Proved presun kurzoru |
| // |
| // Pozice 1.1 je domu |
| // |
| void lcd_gotoxy( BYTE x, BYTE y) |
| { |
| BYTE Adr; |
| Adr=x-1; |
| if(y==2) |
| Adr+=LCD_LINE_2; |
| lcd_send_byte(0,0x80|Adr); |
| } |
| // Zapis znaku na displej, zpracovani ridicich znaku |
| // |
| void lcd_putc( char c) |
| { |
| switch (c) |
| { |
| case '\f' : lcd_send_byte(0,1); // smaz displej |
| delay_ms(2); |
| break; |
| case '\n' : lcd_gotoxy(1,2); break; // presun se na 1. znak 2. radky |
| case '\r' : lcd_gotoxy(1,1); break; // presun home |
| case '\b' : lcd_send_byte(0,0x10); break; // posun kurzor o 1 zpet |
| default : if (c<0x20) c&=0x7; // preklopeni definovatelnych znaku na rozsah 0 az 0x1F |
| lcd_send_byte(1,c); break; // zapis znak |
| } |
| } |
| // Zapni kurzor |
| // |
| void lcd_cursor_on() |
| { |
| lcd_send_byte(0,LCD_CURSOR_ON_); |
| } |
| // Vypni kurzor |
| // |
| void lcd_cursor_off() |
| { |
| lcd_send_byte(0,LCD_CURSOR_OFF_); |
| } |
| // Definice vlastnich fontu |
| // |
| // Vlastnich definic muze byt jen 8 do pozic 0 az 7 pameti CGRAM radice lcd displeje |
| // Pro snadne definovani jsou pripraveny nasledujici definice a na konci souboru je uveden |
| // priklad pouziti definovanych znaku. |
| // Pomocna procedura pro posilani ridicich dat do radice displeje |
| // |
| void lcd_putc2(int Data) |
| { |
| lcd_send_byte(1,Data); |
| } |
| // Pomocne definice pro programovani obsahu CGRAM |
| // |
| #define lcd_define_start(Code) lcd_send_byte(0,0x40+(Code<<3)); delay_ms(2) |
| #define lcd_define_def(String) printf(lcd_putc2,String); |
| #define lcd_define_end() lcd_send_byte(0,3); delay_ms(2) |
| // Vlastni vykonne makro pro definovani fontu do pozice Index CGRAM s definicnim retezcem Def |
| // |
| #define lcd_define_char(Index, Def) lcd_define_start(Index); lcd_define_def(Def); lcd_define_end(); |
| // Pripravene definice fontu vybranych znaku |
| // V tabulce nesmi byt 00 (konec retezce v printf()), misto toho davame 80 |
| // |
| #define LCD_CHAR_BAT100 "\x0E\x1F\x1F\x1F\x1F\x1F\x1F\x1F" /* symbol plne baterie */ |
| #define LCD_CHAR_BAT50 "\x0E\x1F\x11\x11\x13\x17\x1F\x1F" /* symbol polovicni baterie */ |
| #define LCD_CHAR_BAT0 "\x0E\x1F\x11\x11\x11\x11\x11\x1F" /* symbol vybite baterie */ |
| #define LCD_CHAR_UP "\x80\x04\x0E\x15\x04\x04\x04\x80" /* symbol sipka nahoru */ |
| #define LCD_CHAR_DOWN "\x80\x04\x04\x04\x15\x0E\x04\x80" /* symbol Sipka dolu */ |
| #define LCD_CHAR_LUA "\x04\x0E\x11\x11\x1F\x11\x11\x80" /* A s carkou */ |
| #define LCD_CHAR_LLA "\x01\x02\x0E\x01\x1F\x11\x0F\x80" /* a s carkou */ |
| #define LCD_CHAR_HUC "\x0A\x0E\x11\x10\x10\x11\x0E\x80" /* C s hackem */ |
| #define LCD_CHAR_HLC "\x0A\x04\x0E\x10\x10\x11\x0E\x80" /* c s hackem */ |
| #define LCD_CHAR_HUD "\x0A\x1C\x12\x11\x11\x12\x1C\x80" /* D s hackem */ |
| #define LCD_CHAR_HLD "\x05\x03\x0D\x13\x11\x11\x0F\x80" /* d s hackem */ |
| #define LCD_CHAR_LUE "\x04\x1F\x10\x10\x1E\x10\x1F\x80" /* E s carkou */ |
| #define LCD_CHAR_LLE "\x01\x02\x0E\x11\x1F\x10\x0E\x80" /* e s carkou */ |
| #define LCD_CHAR_HUE "\x0A\x1F\x10\x1E\x10\x10\x1F\x80" /* E s hackem */ |
| #define LCD_CHAR_HLE "\x0A\x04\x0E\x11\x1F\x10\x0E\x80" /* e s hackem */ |
| #define LCD_CHAR_LUI "\x04\x0E\x04\x04\x04\x04\x0E\x80" /* I s carkou */ |
| #define LCD_CHAR_LLI "\x02\x04\x80\x0C\x04\x04\x0E\x80" /* i s carkou */ |
| #define LCD_CHAR_HUN "\x0A\x15\x11\x19\x15\x13\x11\x80" /* N s hackem */ |
| #define LCD_CHAR_HLN "\x0A\x04\x16\x19\x11\x11\x11\x80" /* n s hackem */ |
| #define LCD_CHAR_LUO "\x04\x0E\x11\x11\x11\x11\x0E\x80" /* O s carkou */ |
| #define LCD_CHAR_LLO "\x02\x04\x0E\x11\x11\x11\x0E\x80" /* o s carkou */ |
| #define LCD_CHAR_HUR "\x0A\x1E\x11\x1E\x14\x12\x11\x80" /* R s hackem */ |
| #define LCD_CHAR_HLR "\x0A\x04\x16\x19\x10\x10\x10\x80" /* r s hackem */ |
| #define LCD_CHAR_HUS "\x0A\x0F\x10\x0E\x01\x01\x1E\x80" /* S s hackem */ |
| #define LCD_CHAR_HLS "\x0A\x04\x0E\x10\x0E\x01\x1E\x80" /* s s hackem */ |
| #define LCD_CHAR_HUT "\x0A\x1F\x04\x04\x04\x04\x04\x80" /* T s hackem */ |
| #define LCD_CHAR_HLT "\x0A\x0C\x1C\x08\x08\x09\x06\x80" /* t s hackem */ |
| #define LCD_CHAR_LUU "\x02\x15\x11\x11\x11\x11\x0E\x80" /* U s carkou */ |
| #define LCD_CHAR_LLU "\x02\x04\x11\x11\x11\x13\x0D\x80" /* u s carkou */ |
| #define LCD_CHAR_CUU "\x06\x17\x11\x11\x11\x11\x0E\x80" /* U s krouzkem */ |
| #define LCD_CHAR_CLU "\x06\x06\x11\x11\x11\x11\x0E\x80" /* u s krouzkem */ |
| #define LCD_CHAR_LUY "\x02\x15\x11\x0A\x04\x04\x04\x80" /* Y s carkou */ |
| #define LCD_CHAR_LLY "\x02\x04\x11\x11\x0F\x01\x0E\x80" /* y s carkou */ |
| #define LCD_CHAR_HUZ "\x0A\x1F\x01\x02\x04\x08\x1F\x80" /* Z s hackem */ |
| #define LCD_CHAR_HLZ "\x0A\x04\x1F\x02\x04\x08\x1F\x80" /* z s hackem */ |
| // Priklad pouziti definovanych znaku |
| // |
| // |
| //void lcd_sample() |
| //{ |
| // lcd_define_char(0,LCD_CHAR_BAT50); // Priklad definice znaku baterie do pozice 0 |
| // lcd_define_char(2,LCD_CHAR_HLE LCD_CHAR_LUI); // Priklad definice znaku e s hackem a I s carkou od pozice 2 |
| // // vsimnete si, ze neni carka mezi retezci s definici (oba retezce definuji |
| // // jediny definicni retezec) |
| // printf(lcd_putc,"\fZnaky:\20\22\23"); // priklad vypisu znaku z pozice 0, 2 a 3 |
| // delay_ms(1000); |
| // lcd_define_char(0,LCD_CHAR_BAT0); // Predefinovani tvaru znaku v pozici 0 |
| // delay_ms(1000); |
| //} |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |