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| mikroC | |
mikroC - C Compiler for Microchip PIC microcontrollers |
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| making it simple... | ||
| // ..continued |
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| #define CAN_CONFIG_DBL_BUFFER_BIT | 0x10 |
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| #define CAN_CONFIG_DBL_BUFFER_ON | 0xFF | // | XXX1XXXX | |
| #define CAN_CONFIG_DBL_BUFFER_OFF | 0xEF | // | XXX0XXXX | |
| #define CAN_CONFIG_MSG_BITS | 0x60 |
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| #define CAN_CONFIG_ALL_MSG | 0xFF | // | X11XXXXX | |
| #define CAN_CONFIG_VALID_XTD_MSG | 0xDF | // | X10XXXXX | |
| #define CAN_CONFIG_VALID_STD_MSG | 0xBF | // | X01XXXXX | |
| #define CAN_CONFIG_ALL_VALID_MSG | 0x9F | // | X00XXXXX | |
You may use bitwise AND (&) to form config byte out of these values. For exam- ple:
init = CAN_CONFIG_SAMPLE_THRICE CAN_CONFIG_STD_MSG CAN_CONFIG_VALID_XTD_MSG
& CAN_CONFIG_PHSEG2_PRG_ON & & CAN_CONFIG_DBL_BUFFER_ON & & CAN_CONFIG_LINE_FILTER_OFF;
//... |
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CANInitialize(1, 1, 3, 3, 1, init); | // initialize CAN |
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CAN_TX_MSG_FLAGS
CAN_TX_MSG_FLAGS are flags related to transmission of a CAN message:
#define CAN_TX_PRIORITY_BITS | 0x03 |
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#define CAN_TX_PRIORITY_0 | 0xFC | // XXXXXX00 |
#define CAN_TX_PRIORITY_1 | 0xFD | // XXXXXX01 |
#define CAN_TX_PRIORITY_2 | 0xFE | // XXXXXX10 |
#define CAN_TX_PRIORITY_3 | 0xFF | // XXXXXX11 |
#define CAN_TX_FRAME_BIT | 0x08 |
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#define CAN_TX_STD_FRAME | 0xFF | // XXXXX1XX |
#define CAN_TX_XTD_FRAME | 0xF7 | // XXXXX0XX |
#define CAN_TX_RTR_BIT | 0x40 |
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#define CAN_TX_NO_RTR_FRAME | 0xFF | // X1XXXXXX |
#define CAN_TX_RTR_FRAME | 0xBF | // X0XXXXXX |
You may use bitwise AND (&) to adjust the appropriate flags. For example:
/* form value to be used with CANSendMessage: */ send_config = CAN_TX_PRIORITY_0 && CAN_TX_XTD_FRAME &
CAN_TX_NO_RTR_FRAME;
//...
CANSendMessage(id, data, 1, send_config);
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