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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 171 | eqlazer | 1 | /** |
| 2 | * CAN Test. This program sends a CAN message once every second. The ID of the |
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| 3 | * message is increased each time for testing purposes. |
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| 4 | * Added LCD output |
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| 5 | * |
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| 6 | * @date 2006-11-21, LCD addition 2006-12-11 |
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| 7 | * @author Jimmy Myhrman, Erik Larsson |
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| 8 | * |
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| 9 | * Observera! Applikationen är helt otestad |
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| 175 | eqlazer | 10 | * ADC=Vin*1024/Vref |
| 11 | * |
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| 171 | eqlazer | 12 | */ |
| 13 | |||
| 14 | /*----------------------------------------------------------------------------- |
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| 15 | * Includes |
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| 16 | *---------------------------------------------------------------------------*/ |
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| 17 | /* system files */ |
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| 18 | #include <avr/io.h> |
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| 19 | #include <avr/interrupt.h> |
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| 20 | #include <avr/wdt.h> |
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| 21 | #include <stdio.h> |
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| 22 | /* lib files */ |
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| 23 | #include <can.h> |
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| 24 | #include <serial.h> |
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| 25 | #include <timebase.h> |
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| 26 | |||
| 175 | eqlazer | 27 | //#define RELAY_PORT PORTC |
| 28 | //#define RELAY_PIN PC1 |
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| 171 | eqlazer | 29 | #define OFF 0x00 |
| 30 | #define ON 0x01 |
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| 31 | |||
| 175 | eqlazer | 32 | /*------------------------------------------------------------------------------ |
| 33 | * Read relay state (OPEN/CLOSED) and temperature |
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| 34 | * ---------------------------------------------------------------------------*/ |
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| 35 | void readRelayStatus( Can_Message_t* msg, uint8_t state ) |
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| 36 | { |
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| 37 | /* Start measureing */ |
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| 38 | ADCSRA |= (1<<ADSC); |
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| 39 | |||
| 40 | /* Wait for conversion to complete */ |
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| 41 | while( ADCSRA & (1<<ADSC) ){} |
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| 42 | |||
| 43 | msg->Id = 0x1201; // temporary ID |
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| 44 | |||
| 45 | msg->Data.bytes[0] = state; |
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| 46 | msg->Data.bytes[1]= ADCL; |
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| 47 | msg->Data.bytes[2]= ADCH; |
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| 48 | msg->DataLength = 3; |
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| 49 | |||
| 50 | Can_Send( msg ); |
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| 51 | } |
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| 52 | |||
| 171 | eqlazer | 53 | /*----------------------------------------------------------------------------- |
| 54 | * Main Program |
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| 55 | *---------------------------------------------------------------------------*/ |
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| 56 | int main(void) { |
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| 57 | |||
| 58 | uint8_t relayStatus; |
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| 59 | |||
| 60 | Timebase_Init(); |
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| 61 | Serial_Init(); |
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| 62 | sei(); |
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| 63 | |||
| 64 | /* Enable RELAY_PIN as output */ |
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| 65 | DDRC |= (1<<DDC1); |
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| 175 | eqlazer | 66 | |
| 171 | eqlazer | 67 | /* Turn relay off */ |
| 175 | eqlazer | 68 | PORTC &= ~(1<<PC1); |
| 171 | eqlazer | 69 | relayStatus = OFF; |
| 70 | |||
| 175 | eqlazer | 71 | /* Initiate ADC for reading temperature sensor */ |
| 171 | eqlazer | 72 | |
| 175 | eqlazer | 73 | /* Wake up ADC */ |
| 74 | PRR &= ~(1<<PRADC); |
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| 75 | /* Enable AREF and ADC7 */ |
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| 76 | ADMUX = 0x07; |
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| 77 | ADCSRA |= (1<<ADEN); |
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| 78 | |||
| 171 | eqlazer | 79 | printf("\n------------------------------------------------------------\n"); |
| 80 | printf( " CAN: Relay\n"); |
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| 81 | printf( "------------------------------------------------------------\n"); |
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| 82 | |||
| 83 | |||
| 84 | printf("CanInit..."); |
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| 85 | if (Can_Init() != CAN_OK) { |
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| 175 | eqlazer | 86 | printf("FAILED!\n"); |
| 87 | }else{ |
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| 88 | printf("OK!\n"); |
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| 89 | } |
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| 171 | eqlazer | 90 | |
| 175 | eqlazer | 91 | uint32_t timeStamp = 0; |
| 171 | eqlazer | 92 | |
| 175 | eqlazer | 93 | Can_Message_t txMsg; |
| 94 | Can_Message_t rxMsg; |
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| 95 | txMsg.Id = 0; |
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| 96 | txMsg.RemoteFlag = 0; |
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| 97 | txMsg.ExtendedFlag = 1; |
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| 98 | |||
| 99 | |||
| 100 | /* main loop */ |
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| 101 | while (1) { |
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| 102 | /* service the CAN routines */ |
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| 103 | Can_Service(); |
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| 104 | |||
| 105 | /* check if any messages have been received */ |
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| 106 | while (Can_Receive(&rxMsg) == CAN_OK) { |
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| 171 | eqlazer | 107 | /* This relay is adressed*/ |
| 108 | if( rxMsg.Id == 0x1200 ){ |
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| 109 | |||
| 110 | if( rxMsg.Data.bytes[0] == 0x01 ){ |
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| 111 | /* Turn relay on */ |
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| 112 | |||
| 175 | eqlazer | 113 | /* Set as input and enable pull-up */ |
| 114 | DDRC &= ~(1<<DDC1); |
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| 115 | PORTC |= (1<<PC1); |
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| 116 | |||
| 171 | eqlazer | 117 | relayStatus = ON; |
| 118 | |||
| 119 | }else if(rxMsg.Data.bytes[0] == 0x02){ |
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| 120 | /* Turn relay off */ |
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| 121 | |||
| 175 | eqlazer | 122 | DDRC |= (1<<DDC1); |
| 123 | PORTC &= ~(1<<PC1); |
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| 124 | |||
| 171 | eqlazer | 125 | relayStatus = OFF; |
| 126 | |||
| 127 | }else if(rxMsg.Data.bytes[0] == 0x03){ |
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| 128 | /* Toggle relay */ |
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| 129 | |||
| 130 | if(relayStatus == ON){ |
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| 175 | eqlazer | 131 | |
| 132 | DDRC |= (1<<DDC1); |
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| 133 | PORTC &= ~(1<<PC1); |
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| 171 | eqlazer | 134 | relayStatus = OFF; |
| 175 | eqlazer | 135 | |
| 171 | eqlazer | 136 | }else{ |
| 175 | eqlazer | 137 | |
| 138 | DDRC &= ~(1<<DDC1); |
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| 139 | PORTC |= (1<<PC1); |
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| 171 | eqlazer | 140 | relayStatus = ON; |
| 141 | } |
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| 142 | |||
| 143 | }else if(rxMsg.Data.bytes[0] == 0x04){ |
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| 144 | /* Get relay status (ON/OFF?, temperature) */ |
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| 175 | eqlazer | 145 | readRelayStatus( &txMsg, relayStatus ); |
| 171 | eqlazer | 146 | } |
| 147 | } |
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| 148 | } |
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| 149 | |||
| 175 | eqlazer | 150 | // TODO |
| 151 | // ska status på relä och temperatur skickas periodiskt? |
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| 152 | // tätare intervall om temperaturen kommer över en viss gräns? |
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| 153 | |||
| 171 | eqlazer | 154 | if( Timebase_PassedTimeMillis(timeStamp) >=5000){ |
| 155 | timeStamp = Timebase_CurrentTime(); |
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| 175 | eqlazer | 156 | /* Get relay status (ON/OFF?, temperature) */ |
| 171 | eqlazer | 157 | |
| 175 | eqlazer | 158 | readRelayStatus( &txMsg, relayStatus ); |
| 171 | eqlazer | 159 | } |
| 160 | } |
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| 161 | return 0; |
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| 162 | } |
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| 175 | eqlazer | 163 |