Rev 2126 Rev 2127
1 /********************************************* 1 /*********************************************
2 * 2 *
3 * RFM02 simple library 3 * RFM02 simple library
4 * 4 *
5 * $id= $ 5 * $Id:$
6 * 6 *
7 * code based on the code of "benedikt k." and "contrechoc" 7 * code based on the code of "benedikt k." and "contrechoc"
8 * 8 *
9 * arduino 22 9 * arduino 22
10 * 10 *
11 *********************************************/ 11 *********************************************/
12   12  
13   13  
14 #include <avr/io.h> 14 #include <avr/io.h>
15 #include <avr/interrupt.h> 15 #include <avr/interrupt.h>
16 #include <stdlib.h> 16 #include <stdlib.h>
17 #include <avr/pgmspace.h> 17 #include <avr/pgmspace.h>
18 #include <avr/eeprom.h> 18 #include <avr/eeprom.h>
19 19
20 #include <string.h> 20 #include <string.h>
21 21
22 #include "rf02.h" 22 #include "rf02.h"
23 #include <util/delay.h> 23 #include <util/delay.h>
24   24  
25 #define F_CPU 16000000UL 25 #define F_CPU 16000000UL
26 26
27 #define RF_PORT PORTB 27 #define RF_PORT PORTB
28 #define RF_DDR DDRB 28 #define RF_DDR DDRB
29 #define RF_PIN PINB 29 #define RF_PIN PINB
30   30  
31 #define SDI 0 // SDI, -> RF02 Atmega PB0 Arduino 8 31 #define SDI 0 // SDI, -> RF02 Atmega PB0 Arduino 8
32 #define SCK 1 // SCK, -> RF02 Atmega PB1 Arduino 9 32 #define SCK 1 // SCK, -> RF02 Atmega PB1 Arduino 9
33 #define CS 2 // nSEL, -> RF02 Atmega PB2 Arduino 10 33 #define CS 2 // nSEL, -> RF02 Atmega PB2 Arduino 10
34 #define IRQ 4 // nIRQ, <- RF02 Atmega PB4 Arduino 12 34 #define IRQ 4 // nIRQ, <- RF02 Atmega PB4 Arduino 12
35 #define FSK 3 // FSK, <- RF02 Atmega PB3 Arduino ??? 35 #define FSK 3 // FSK, <- RF02 Atmega PB3 Arduino ???
36 //------------------// FSK: Pullupto VCC 36 //------------------// FSK: Pullupto VCC
37   37  
38 #ifndef cbi 38 #ifndef cbi
39 #define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit)) 39 #define cbi(sfr, bit) (_SFR_BYTE(sfr) &= ~_BV(bit))
40 #endif 40 #endif
41 #ifndef sbi 41 #ifndef sbi
42 #define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit)) 42 #define sbi(sfr, bit) (_SFR_BYTE(sfr) |= _BV(bit))
43 #endif 43 #endif
44   44  
45   45  
46 unsigned char test[32]=" 55555 \n"; 46 unsigned char test[32]=" 55555 \n";
47   47  
48 void rf02_changeText( unsigned char* ptr, uint8_t number) 48 void rf02_changeText( unsigned char* ptr, uint8_t number)
49 { 49 {
50   50  
51 if (number> 32)number = 32; 51 if (number> 32)number = 32;
52 memcpy( test, ptr, number); 52 memcpy( test, ptr, number);
53 53
54 } 54 }
55   55  
56 void rf02_prepAll() 56 void rf02_prepAll()
57 { 57 {
58 RF_PORT=(1<<CS); 58 RF_PORT=(1<<CS);
59 RF_DDR=(1<<SDI)|(1<<SCK)|(1<<CS); 59 RF_DDR=(1<<SDI)|(1<<SCK)|(1<<CS);
60   60  
61 sbi(RF_PORT, FSK); 61 sbi(RF_PORT, FSK);
62   62  
63   63  
64 for (unsigned char i=0; i<15; i++) _delay_ms(10); // wait until POR done 64 for (unsigned char i=0; i<15; i++) _delay_ms(10); // wait until POR done
65 65
66   66  
67 rf02_trans(0xCC00); //*// 67 rf02_trans(0xCC00); //*//
68   68  
69 // rf02_trans(0x8B61); //*// 69 // rf02_trans(0x8B61); //*//
70 rf02_trans(0x8000|0x1000|0x70|0x02); //*// 70 rf02_trans(0x8000|0x1000|0x70|0x02); //*//
71 rf02_trans(0xA000|0x640); //*// 71 rf02_trans(0xA000|0x640); //*//
72 // rf02_trans(0xA640); ///= 434 MHz 72 // rf02_trans(0xA640); ///= 434 MHz
73   73  
74 // rf02_trans(0xD2C0); // 33% PLL current 74 // rf02_trans(0xD2C0); // 33% PLL current
75 // rf02_trans(0xC823); // 9600 Bd 75 // rf02_trans(0xC823); // 9600 Bd
76 rf02_trans(0xD040); // RATE/2 76 rf02_trans(0xD040); // RATE/2
77 rf02_trans(0xC811); // 19200 => 9600 Bd 77 rf02_trans(0xC811); // 19200 => 9600 Bd
78   78  
79 rf02_trans(0xC0E0); // power settings 79 rf02_trans(0xC0E0); // power settings
80   80  
81 rf02_trans(0xC220); //0xC2A0 81 rf02_trans(0xC220); //0xC2A0
82 // rf02_trans(0xB100); 82 // rf02_trans(0xB100);
83 // rf02_trans(0x8F83); 83 // rf02_trans(0x8F83);
84 //!!! 84 //!!!
85 // rf02_trans(0xC001); 85 // rf02_trans(0xC001);
86   86  
87   87  
88 } 88 }
89   89  
90 void rf02_sendData() 90 void rf02_sendData()
91 { 91 {
92   92  
93 //!!! rf02_txdata( test, sizeof test); 93 //!!! rf02_txdata( test, sizeof test);
94 rf02_txdata( test, 23); 94 rf02_txdata( test, 23);
95 } 95 }
96   96  
97 void rf02_trans(unsigned short value) 97 void rf02_trans(unsigned short value)
98 { 98 {
99 uint8_t i; 99 uint8_t i;
100   100  
101 cbi(RF_PORT, CS); 101 cbi(RF_PORT, CS);
102   102  
103 for (i=0; i<16; i++) 103 for (i=0; i<16; i++)
104 { if (value&0x8000) //0x8000 104 { if (value&0x8000) //0x8000
105 sbi(RF_PORT, SDI); 105 sbi(RF_PORT, SDI);
106 else 106 else
107 cbi(RF_PORT, SDI); 107 cbi(RF_PORT, SDI);
108   108  
109 sbi(RF_PORT, SCK); 109 sbi(RF_PORT, SCK);
110 value<<=1; 110 value<<=1;
111 _delay_us(0.3); 111 _delay_us(0.3);
112 cbi(RF_PORT, SCK); 112 cbi(RF_PORT, SCK);
113 } 113 }
114 sbi(RF_PORT, CS); 114 sbi(RF_PORT, CS);
115 } 115 }
116   116  
117   117  
118 void rf02_txdata( unsigned char * data, uint8_t number) 118 void rf02_txdata( unsigned char * data, uint8_t number)
119 { 119 {
120 uint8_t i,value; 120 uint8_t i,value;
121 value=0xC6; //1100 0110 121 value=0xC6; //1100 0110
122 cbi(RF_PORT, CS); //nSel 122 cbi(RF_PORT, CS); //nSel
123   123  
124 //!!!! 124 //!!!!
125 // rf02_trans(0xC039); // TX start 125 // rf02_trans(0xC039); // TX start
126   126  
127   127  
128 for (i=0; i<8; i++) 128 for (i=0; i<8; i++)
129 { if (value&0x80) //1000 0000 = 80 129 { if (value&0x80) //1000 0000 = 80
130 sbi(RF_PORT, SDI); 130 sbi(RF_PORT, SDI);
131 else 131 else
132 cbi(RF_PORT, SDI); 132 cbi(RF_PORT, SDI);
133   133  
134 sbi(RF_PORT, SCK); 134 sbi(RF_PORT, SCK);
135 value<<=1; 135 value<<=1;
136 _delay_us(0.2); 136 _delay_us(0.2);
137 cbi(RF_PORT, SCK); 137 cbi(RF_PORT, SCK);
138 } 138 }
139   139  
140 rf02_shiftout(0xAA);//10101010 140 rf02_shiftout(0xAA);//10101010
141 rf02_shiftout(0xAA); 141 rf02_shiftout(0xAA);
142 rf02_shiftout(0xAA); 142 rf02_shiftout(0xAA);
143 rf02_shiftout(0x2D);//00101101 143 rf02_shiftout(0x2D);//00101101
144 rf02_shiftout(0xD4);//11010100 144 rf02_shiftout(0xD4);//11010100
145 145
146 // no checkbit, in experimenting some letters were transmitted wrong! 146 // no checkbit, in experimenting some letters were transmitted wrong!
147   147  
148 for (i=0; i<number; i++) 148 for (i=0; i<number; i++)
149 rf02_shiftout(*data++); 149 rf02_shiftout(*data++);
150   150  
151 sbi(RF_PORT, CS); 151 sbi(RF_PORT, CS);
152 while(RF_PIN&(1<<IRQ)); // wait until transfer done 152 while(RF_PIN&(1<<IRQ)); // wait until transfer done
153 rf02_trans(0xC464); // TX off after 10us 153 rf02_trans(0xC464); // TX off after 10us
154 //rf02_trans(0xC001); // TX close 154 //rf02_trans(0xC001); // TX close
155 _delay_ms(10); 155 _delay_ms(10);
156 } 156 }
157   157  
158 void rf02_shiftout(unsigned char value) 158 void rf02_shiftout(unsigned char value)
159 { uint8_t j; 159 { uint8_t j;
160 for (j=0; j<8; j++) 160 for (j=0; j<8; j++)
161 { while(RF_PIN&(1<<IRQ)); 161 { while(RF_PIN&(1<<IRQ));
162 while(!(RF_PIN&(1<<IRQ))); 162 while(!(RF_PIN&(1<<IRQ)));
163   163  
164 if (value&128) //100101000 164 if (value&128) //100101000
165 { 165 {
166 sbi(RF_PORT, SDI); 166 sbi(RF_PORT, SDI);
167 } 167 }
168 else 168 else
169 { 169 {
170 cbi(RF_PORT, SDI); 170 cbi(RF_PORT, SDI);
171 } 171 }
172 value<<=1; 172 value<<=1;
173 } 173 }
174 } 174 }
175 175