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| 1 | /** |
1 | /** |
| 2 | * CAN Test. This program sends a CAN message once every second. The ID of the |
- | |
| 3 | * message is increased each time for testing purposes. |
- | |
| 4 | * |
2 | * CAN Relay. |
| - | 3 | * |
|
| 5 | * |
4 | * |
| 6 | * @date |
5 | * @date 2006-12-17 |
| 7 | * @author |
6 | * @author Erik Larsson |
| 8 | * |
7 | * |
| 9 | * Observera! Applikationen är helt |
8 | * Observera! Applikationen är helt otestad! |
| - | 9 | * |
|
| 10 | * ADC=Vin*1024/Vref |
10 | * ADC=Vin*1024/Vref |
| 11 | * Vout=( 10 mV/C )( Temperature C ) + 500 mV |
11 | * Vout=( 10 mV/C )( Temperature C ) + 500 mV |
| 12 | * |
12 | * |
| 13 | * Transmitts: DATA: <temperature high byte> <temperature low byte> <relay status> |
13 | * Transmitts: DATA: <temperature high byte> <temperature low byte> <relay status> |
| 14 | * |
14 | * |
| 15 | */ |
15 | */ |
| - | 16 | ||
| - | 17 | /* |
|
| - | 18 | * For testing with ATmega88 PDIP enable this fetaure |
|
| - | 19 | * Since PDIP doesn't have ADC7 it will use the ADC0 instead |
|
| - | 20 | */ |
|
| - | 21 | #define PDIP 0 |
|
| 16 | 22 | ||
| 17 | /*----------------------------------------------------------------------------- |
23 | /*----------------------------------------------------------------------------- |
| 18 | * Includes |
24 | * Includes |
| 19 | *---------------------------------------------------------------------------*/ |
25 | *---------------------------------------------------------------------------*/ |
| 20 | /* system files */ |
26 | /* system files */ |
| Line 24... | Line 30... | ||
| 24 | #include <stdio.h> |
30 | #include <stdio.h> |
| 25 | /* lib files */ |
31 | /* lib files */ |
| 26 | #include <can.h> |
32 | #include <can.h> |
| 27 | #include <serial.h> |
33 | #include <serial.h> |
| 28 | #include <timebase.h> |
34 | #include <timebase.h> |
| 29 | 35 | /* defines */ |
|
| 30 | #define OFF 0x00 |
36 | #define OFF 0x00 |
| 31 | #define ON 0x01 |
37 | #define ON 0x01 |
| 32 | #define Vref 5 |
38 | #define Vref 5 |
| 33 | 39 | ||
| 34 | /*------------------------------------------------------------------------------ |
40 | /*------------------------------------------------------------------------------ |
| 35 | * Read relay state (OPEN/CLOSED) and temperature |
41 | * Read and send relay state (OPEN/CLOSED) and temperature |
| 36 | * ---------------------------------------------------------------------------*/ |
42 | * ---------------------------------------------------------------------------*/ |
| 37 | void sendRelayStatus( Can_Message_t* msg, uint8_t state ) |
43 | void sendRelayStatus( Can_Message_t* msg, uint8_t state ) |
| 38 | { |
44 | { |
| 39 | int16_t temp; |
45 | int16_t temp; |
| 40 | 46 | ||
| Line 64... | Line 70... | ||
| 64 | * Main Program |
70 | * Main Program |
| 65 | *---------------------------------------------------------------------------*/ |
71 | *---------------------------------------------------------------------------*/ |
| 66 | int main(void) { |
72 | int main(void) { |
| 67 | 73 | ||
| 68 | uint8_t relayStatus; |
74 | uint8_t relayStatus; |
| 69 | 75 | ||
| 70 | Timebase_Init(); |
76 | Timebase_Init(); |
| 71 | Serial_Init(); |
77 | Serial_Init(); |
| 72 | sei(); |
78 | sei(); |
| 73 | 79 | ||
| 74 | /* Turn relay off */ |
80 | /* Turn relay off */ |
| 75 | PORTC &= ~(1<<PC1); |
81 | PORTC &= ~(1<<PC1); |
| 76 | DDRC |= (1<<DDC1); |
82 | DDRC |= (1<<DDC1); |
| 77 | 83 | ||
| 78 | relayStatus = OFF; |
84 | relayStatus = OFF; |
| 79 | 85 | ||
| 80 | /* Initiate ADC for reading temperature sensor */ |
86 | /* Initiate ADC for reading temperature sensor */ |
| 81 | 87 | ||
| 82 | /* Wake up ADC */ |
88 | /* Wake up ADC */ |
| 83 | PRR &= ~(1<<PRADC); |
89 | PRR &= ~(1<<PRADC); |
| - | 90 | #if PDIP |
|
| - | 91 | /* Enable AREF and ADC0 (For PDIP package) */ |
|
| - | 92 | ADMUX = 0x00; |
|
| - | 93 | #else |
|
| 84 | /* Enable AREF and ADC7 */ |
94 | /* Enable AREF and ADC7 (For TQFP package) */ |
| 85 | ADMUX = 0x07; |
95 | ADMUX = 0x07; |
| - | 96 | #endif |
|
| - | 97 | ||
| 86 | ADCSRA |= (1<<ADEN); |
98 | ADCSRA |= (1<<ADEN); |
| 87 | 99 | ||
| 88 | printf("\n------------------------------------------------------------\n"); |
100 | printf("\n------------------------------------------------------------\n"); |
| 89 | printf( " CAN: Relay\n"); |
101 | printf( " CAN: Relay\n"); |
| 90 | printf( "------------------------------------------------------------\n"); |
102 | printf( "------------------------------------------------------------\n"); |
| Line 143... | Line 155... | ||
| 143 | relayStatus = OFF; |
155 | relayStatus = OFF; |
| 144 | 156 | ||
| 145 | }else{ |
157 | }else{ |
| 146 | DDRC &= ~(1<<DDC1); |
158 | DDRC &= ~(1<<DDC1); |
| 147 | PORTC |= (1<<PC1); |
159 | PORTC |= (1<<PC1); |
| 148 | 160 | ||
| 149 | relayStatus = ON; |
161 | relayStatus = ON; |
| 150 | } |
162 | } |
| 151 | 163 | ||
| 152 | }else if(rxMsg.Data.bytes[0] == 0x04){ |
164 | }else if(rxMsg.Data.bytes[0] == 0x04){ |
| 153 | /* Get relay status (ON/OFF?, temperature) */ |
165 | /* Get relay status (ON/OFF?, temperature) */ |
| 154 | sendRelayStatus( &txMsg, relayStatus ); |
166 | sendRelayStatus( &txMsg, relayStatus ); |
| 155 | } |
167 | } |
| 156 | } |
168 | } |
| 157 | } |
169 | } |
| 158 | 170 | ||
| 159 | // TODO |
171 | // TODO |
| 160 | // ska status på relä och temperatur skickas periodiskt? |
172 | // ska status på relä och temperatur skickas periodiskt? |
| 161 | // tätare intervall om temperaturen kommer över en viss gräns? |
173 | // tätare intervall om temperaturen kommer över en viss gräns? |
| 162 | 174 | ||
| 163 | if( Timebase_PassedTimeMillis(timeStamp) >=5000){ |
175 | if( Timebase_PassedTimeMillis(timeStamp) >=5000){ |
| 164 | timeStamp = Timebase_CurrentTime(); |
176 | timeStamp = Timebase_CurrentTime(); |
| 165 | /* Get relay status (ON/OFF?, temperature) */ |
177 | /* Get relay status (ON/OFF?, temperature) and send */ |
| 166 | 178 | ||
| 167 | sendRelayStatus( &txMsg, relayStatus ); |
179 | sendRelayStatus( &txMsg, relayStatus ); |
| 168 | } |
180 | } |
| 169 | } |
181 | } |
| 170 | return 0; |
182 | return 0; |
| 171 | } |
183 | } |
| 172 | 184 | ||