No changes between revisions
| /Designs/Tools/Oscilloscope/SW/firmware/gnuradio/Makefile |
|---|
| 0,0 → 1,33 |
| PRG = scope |
| OBJ = main.o ./libs/usart.o ./libs/spi.o |
| MCU_TARGET = atmega8 |
| AVRDUDE_PART = m8 |
| OPTIMIZE = -O1 |
| # OPTIMIZE = -Os |
| CC = avr-gcc |
| override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS) |
| OBJCOPY = avr-objcopy |
| OBJDUMP = avr-objdump |
| all: hex |
| ./libs/spi.o: ./libs/spi.h |
| ./libs/usart.o: ./libs/usart.h |
| #./libs/timer.o: ./libs/timer.h |
| hex: $(PRG).hex |
| %.hex: %.elf |
| $(OBJCOPY) -j .text -j .data -O ihex $< $@ |
| $(PRG).elf: $(OBJ) |
| $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS) |
| load: $(PRG).hex |
| avrdude -p $(AVRDUDE_PART) -c stk500v2 -P /dev/ttyUSB0 -B 2 -U flash:w:$< |
| clean: |
| rm -rf *.o $(PRG).elf $(PRG).hex ./libs/*.o |
| Property changes: |
| Added: svn:executable |
| +* |
| \ No newline at end of property |
| /Designs/Tools/Oscilloscope/SW/firmware/gnuradio/libs/spi.c |
|---|
| 0,0 → 1,20 |
| #include "spi.h" |
| #include <avr/io.h> |
| void SPI_MasterInit(void) |
| { |
| /* Enable SPI, Master, set clock rate fck/4, SCK high when idle, sample on rising */ |
| // SPSR|= 0b00000001; //for fck/2 |
| SPCR = 0b01011100; |
| } |
| char SPI_MasterTransmit(char cData) { |
| /* Start transmission */ |
| SPDR = cData; |
| /* Wait for transmission complete */ |
| while(!(SPSR & (1<<SPIF))) |
| ; |
| return SPDR; |
| } |
| /Designs/Tools/Oscilloscope/SW/firmware/gnuradio/libs/spi.h |
|---|
| 0,0 → 1,7 |
| #ifndef SPI_H |
| #define SPI_H |
| void SPI_MasterInit(void); |
| char SPI_MasterTransmit(char cData); |
| #endif |
| /Designs/Tools/Oscilloscope/SW/firmware/gnuradio/libs/usart.c |
|---|
| 0,0 → 1,128 |
| #include "usart.h" |
| #include <avr/io.h> |
| void USART_Init( unsigned int ubrr) |
| { |
| /* Set baud rate */ |
| UBRRH = (unsigned char)(ubrr>>8); |
| UBRRL = (unsigned char)ubrr; |
| /* flush transmitt register Double speed */ |
| UCSRA = (1<<UDRE)|(1 << U2X); |
| /* enable receiver interrupt and transmitter, pins forced */ |
| UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN); |
| /* Asynchronous, no parity, Set frame format: 8data, 1stop bit */ |
| UCSRC = (1<<URSEL)|(1<<UCSZ0)|(1<<UCSZ1); |
| } |
| void USART_Transmit( unsigned char data ) |
| { |
| while ( !( UCSRA & (1<<UDRE)) ); /* Wait for empty transmit buffer */ |
| UDR = data; /* Put data into buffer, sends the data */ |
| } |
| void USART_Transmit_string( char *data ) |
| { |
| while ( *data != 0 ) { |
| USART_Transmit(*data); |
| data++; |
| } |
| } |
| void USART_Transmit_longnum(signed long data ) { |
| unsigned char digits[10],i; |
| if (data==0) |
| USART_Transmit('0'); |
| else { // PROZKOUMAT! |
| if (data<0) { |
| USART_Transmit('-'); |
| data*=-1; |
| } |
| for (i=0;i<10;i++) { |
| digits[i]=data%10; |
| data=data/10; |
| } |
| i=9; |
| while (digits[i]==0) i--; |
| while (i>0) { |
| USART_Transmit(digits[i]+48); |
| i--; |
| } |
| USART_Transmit(digits[0]+48); |
| } |
| } |
| void USART_Transmit_uint16 (unsigned int data ) { |
| unsigned char digits[5],i; |
| if (data==0) //podivne, ale nulu to odeslat neumi |
| USART_Transmit('0'); |
| else { |
| for (i=0;i<5;i++) { |
| digits[i]=data%10; |
| data=data/10; |
| } |
| i=4; |
| while (digits[i]==0) i--; |
| while (i>0) { |
| USART_Transmit(digits[i]+48); |
| i--; |
| } |
| USART_Transmit(digits[0]+48); |
| } |
| } |
| void USART_Transmit_num(unsigned char data ) { |
| unsigned char a,b,c; |
| c=data%10; |
| data=data/10; |
| b=data%10; |
| data=data/10; |
| a=data%10; |
| USART_Transmit(a+48); |
| USART_Transmit(b+48); |
| USART_Transmit(c+48); |
| } |
| /*void USART_Transmit_float( float data ) { |
| int a,b,c; |
| c=((int)data)%10; |
| b=((int)(data/10))%10; |
| a=((int)(data/100))%10; |
| USART_Transmit(a+48); |
| USART_Transmit(b+48); |
| USART_Transmit(c+48); |
| }*/ |
| void USART_Transmit_byte( char data ) { |
| unsigned char i; |
| i=0b10000000; |
| while (i) { |
| USART_Transmit( ( (i&data)&&1 ) + 48 ); |
| i>>=1; |
| } |
| } |
| /Designs/Tools/Oscilloscope/SW/firmware/gnuradio/libs/usart.h |
|---|
| 0,0 → 1,17 |
| #ifndef USART_H |
| #define USART_H |
| //Inits: |
| void USART_Init( unsigned int ubrr); // 8b, no parity, 1 stop |
| // asynchronous, RX interrupt |
| // Busy loops: |
| void USART_Transmit( unsigned char data ); // send char (1B) |
| void USART_Transmit_string( char *data ); // send string |
| void USART_Transmit_num( unsigned char data ); // send ascii |
| void USART_Transmit_longnum( signed long data ); // send ascii |
| void USART_Transmit_uint16( unsigned int data ); // send ascii |
| //void USART_Transmit_float( float data ); |
| void USART_Transmit_byte( char data ); //send in ascii hex reprezentation |
| #endif |
| /Designs/Tools/Oscilloscope/SW/firmware/gnuradio/main.c |
|---|
| 0,0 → 1,38 |
| // Oscilloscope firmware, Roman Pavelka, 2011 |
| // written for atmega8 |
| #define F_CPU 16000000 |
| #define BAUD 1000000 |
| //#define MYUBRR F_CPU/8/BAUD-1 |
| #define MYUBRR 1 |
| #include "./libs/usart.h" |
| #include "./libs/spi.h" |
| #include <avr/io.h> |
| #include <avr/interrupt.h> |
| #include <util/delay.h> |
| #include <inttypes.h> |
| int main (void) { |
| USART_Init(MYUBRR); |
| DDRB = 0b00100100; //SCK, SS out |
| PORTB = 0b00000000; // CONV low |
| SPI_MasterInit(); |
| while(1) |
| { |
| PORTB |= 0b00000100; |
| _delay_us(4); |
| PORTB &= 0b11111011; //one conversion |
| USART_Transmit(SPI_MasterTransmit(0x0)); //Binary transfer |
| USART_Transmit(SPI_MasterTransmit(0x0)); |
| _delay_us(4); |
| } |
| return 0; |
| } |
| /Designs/Tools/Oscilloscope/SW/firmware/Makefile |
|---|
| 0,0 → 1,33 |
| PRG = scope |
| OBJ = main.o ./libs/usart.o ./libs/spi.o |
| MCU_TARGET = atmega8 |
| AVRDUDE_PART = m8 |
| OPTIMIZE = -O1 |
| # OPTIMIZE = -Os |
| CC = avr-gcc |
| override CFLAGS = -g -Wall $(OPTIMIZE) -mmcu=$(MCU_TARGET) $(DEFS) |
| OBJCOPY = avr-objcopy |
| OBJDUMP = avr-objdump |
| all: hex |
| ./libs/spi.o: ./libs/spi.h |
| ./libs/usart.o: ./libs/usart.h |
| #./libs/timer.o: ./libs/timer.h |
| hex: $(PRG).hex |
| %.hex: %.elf |
| $(OBJCOPY) -j .text -j .data -O ihex $< $@ |
| $(PRG).elf: $(OBJ) |
| $(CC) $(CFLAGS) $(LDFLAGS) -o $@ $^ $(LIBS) |
| load: $(PRG).hex |
| avrdude -p $(AVRDUDE_PART) -c stk500v2 -P /dev/ttyUSB0 -B 2 -U flash:w:$< |
| clean: |
| rm -rf *.o $(PRG).elf $(PRG).hex ./libs/*.o |
| Property changes: |
| Added: svn:executable |
| /Designs/Tools/Oscilloscope/SW/firmware/scope.elf |
|---|
| Cannot display: file marked as a binary type. |
| svn:mime-type = application/octet-stream |
| Property changes: |
| Added: svn:executable |
| Added: svn:mime-type |
| +application/octet-stream |
| \ No newline at end of property |
| /Designs/Tools/Oscilloscope/SW/firmware/scope.hex |
|---|
| 0,0 → 1,67 |
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| :00000001FF |
| /Designs/Tools/Oscilloscope/SW/firmware/libs/spi.c |
|---|
| 0,0 → 1,20 |
| #include "spi.h" |
| #include <avr/io.h> |
| void SPI_MasterInit(void) |
| { |
| /* Enable SPI, Master, set clock rate fck/4, SCK high when idle, sample on rising */ |
| // SPSR|= 0b00000001; //for fck/2 |
| SPCR = 0b01011100; |
| } |
| char SPI_MasterTransmit(char cData) { |
| /* Start transmission */ |
| SPDR = cData; |
| /* Wait for transmission complete */ |
| while(!(SPSR & (1<<SPIF))) |
| ; |
| return SPDR; |
| } |
| /Designs/Tools/Oscilloscope/SW/firmware/libs/spi.h |
|---|
| 0,0 → 1,7 |
| #ifndef SPI_H |
| #define SPI_H |
| void SPI_MasterInit(void); |
| char SPI_MasterTransmit(char cData); |
| #endif |
| /Designs/Tools/Oscilloscope/SW/firmware/libs/usart.c |
|---|
| 0,0 → 1,128 |
| #include "usart.h" |
| #include <avr/io.h> |
| void USART_Init( unsigned int ubrr) |
| { |
| /* Set baud rate */ |
| UBRRH = (unsigned char)(ubrr>>8); |
| UBRRL = (unsigned char)ubrr; |
| /* flush transmitt register Double speed */ |
| UCSRA = (1<<UDRE)|(1 << U2X); |
| /* enable receiver interrupt and transmitter, pins forced */ |
| UCSRB = (1<<RXCIE)|(1<<RXEN)|(1<<TXEN); |
| /* Asynchronous, no parity, Set frame format: 8data, 1stop bit */ |
| UCSRC = (1<<URSEL)|(1<<UCSZ0)|(1<<UCSZ1); |
| } |
| void USART_Transmit( unsigned char data ) |
| { |
| while ( !( UCSRA & (1<<UDRE)) ); /* Wait for empty transmit buffer */ |
| UDR = data; /* Put data into buffer, sends the data */ |
| } |
| void USART_Transmit_string( char *data ) |
| { |
| while ( *data != 0 ) { |
| USART_Transmit(*data); |
| data++; |
| } |
| } |
| void USART_Transmit_longnum(signed long data ) { |
| unsigned char digits[10],i; |
| if (data==0) |
| USART_Transmit('0'); |
| else { // PROZKOUMAT! |
| if (data<0) { |
| USART_Transmit('-'); |
| data*=-1; |
| } |
| for (i=0;i<10;i++) { |
| digits[i]=data%10; |
| data=data/10; |
| } |
| i=9; |
| while (digits[i]==0) i--; |
| while (i>0) { |
| USART_Transmit(digits[i]+48); |
| i--; |
| } |
| USART_Transmit(digits[0]+48); |
| } |
| } |
| void USART_Transmit_uint16 (unsigned int data ) { |
| unsigned char digits[5],i; |
| if (data==0) //podivne, ale nulu to odeslat neumi |
| USART_Transmit('0'); |
| else { |
| for (i=0;i<5;i++) { |
| digits[i]=data%10; |
| data=data/10; |
| } |
| i=4; |
| while (digits[i]==0) i--; |
| while (i>0) { |
| USART_Transmit(digits[i]+48); |
| i--; |
| } |
| USART_Transmit(digits[0]+48); |
| } |
| } |
| void USART_Transmit_num(unsigned char data ) { |
| unsigned char a,b,c; |
| c=data%10; |
| data=data/10; |
| b=data%10; |
| data=data/10; |
| a=data%10; |
| USART_Transmit(a+48); |
| USART_Transmit(b+48); |
| USART_Transmit(c+48); |
| } |
| /*void USART_Transmit_float( float data ) { |
| int a,b,c; |
| c=((int)data)%10; |
| b=((int)(data/10))%10; |
| a=((int)(data/100))%10; |
| USART_Transmit(a+48); |
| USART_Transmit(b+48); |
| USART_Transmit(c+48); |
| }*/ |
| void USART_Transmit_byte( char data ) { |
| unsigned char i; |
| i=0b10000000; |
| while (i) { |
| USART_Transmit( ( (i&data)&&1 ) + 48 ); |
| i>>=1; |
| } |
| } |
| /Designs/Tools/Oscilloscope/SW/firmware/libs/usart.h |
|---|
| 0,0 → 1,17 |
| #ifndef USART_H |
| #define USART_H |
| //Inits: |
| void USART_Init( unsigned int ubrr); // 8b, no parity, 1 stop |
| // asynchronous, RX interrupt |
| // Busy loops: |
| void USART_Transmit( unsigned char data ); // send char (1B) |
| void USART_Transmit_string( char *data ); // send string |
| void USART_Transmit_num( unsigned char data ); // send ascii |
| void USART_Transmit_longnum( signed long data ); // send ascii |
| void USART_Transmit_uint16( unsigned int data ); // send ascii |
| //void USART_Transmit_float( float data ); |
| void USART_Transmit_byte( char data ); //send in ascii hex reprezentation |
| #endif |
| /Designs/Tools/Oscilloscope/SW/firmware/main.c |
|---|
| 0,0 → 1,79 |
| // Oscilloscope firmware, Roman Pavelka, 2011 |
| // written for atmega8 |
| #define F_CPU 16000000 |
| #define BAUD 1000000 |
| //#define MYUBRR F_CPU/8/BAUD-1 |
| #define MYUBRR 1 |
| #include "./libs/usart.h" |
| #include "./libs/spi.h" |
| #include <avr/io.h> |
| #include <avr/interrupt.h> |
| #include <util/delay.h> |
| #include <inttypes.h> |
| #define LEN 100 |
| uint8_t data[2*LEN]; |
| void measure(void); |
| void send(void); |
| int main (void) { |
| USART_Init(MYUBRR); |
| DDRB = 0b00100100; //SCK, SS out |
| PORTB = 0b00000000; // CONV low |
| SPI_MasterInit(); |
| sei(); |
| while(1) {} |
| return 0; |
| } |
| void measure(void) { |
| uint8_t i; |
| for(i=0;i<LEN;i++) { |
| PORTB |= 0b00000100; |
| _delay_us(4); |
| PORTB &= 0b11111011; //one conversion |
| data[2*i] = SPI_MasterTransmit(0x0); |
| data[2*i+1] = SPI_MasterTransmit(0x0); |
| } |
| } |
| void send(void) { |
| uint8_t i; |
| for(i=0;i<LEN;i++) { |
| /* USART_Transmit_uint16(data[i]); //ASCII transfer |
| USART_Transmit('\n');*/ |
| USART_Transmit(data[2*i]); //Binary transfer |
| USART_Transmit(data[2*i+1]); |
| // USART_Transmit('\n'); |
| } |
| } |
| ISR(USART_RXC_vect) { |
| char data; |
| data=UDR; //must be read to untrigger interupt |
| if (data=='m') { |
| measure(); |
| send(); |
| } |
| } |