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AN2341 Datasheet(PDF) 10 Page - STMicroelectronics |
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AN2341 Datasheet(HTML) 10 Page - STMicroelectronics |
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10 / 26 page  Programming through CAN hardware features AN2341 10/26 if (status & TxOK) {......} // transmit interrupt if (status & RxOK) {......} // receive interrupt if (status & 0x07) {......} // erroneous transfer interrupt } if (CANxCR & EIE) // if EIE is set (error interrupts) { if (status & EWRN) {......} // error counter warning if (status & BOFF) // bus-off situation CANxCR = (CANxCR & 0xfe); // recover from BOff (clear INIT) {......} // remaining part of the BOff procedure } break; case 1: // Message 1 Interrupt CANxIF1CM = 0x7F; // Transfer entire message into inference CANxIF1CR = intid; // register and clear IntPnd and NewDat CANx_WAIT_FOR_IF1; if (CANxIF1A2 & IF_DIR) // direction = transmit { if (CANxIF1MC & IF_NEWDAT) // remote received provided that UMask = 1 // and RmtEn = 0 {.....} // procedure to handle answer to remote else {.....} // procedure to handle transmit interrupts } else // direction = receive { if (CANxIF1MC & IF_NEWDAT) // NewDat is set {.....} // procedure to handle data receive interrupt else {.....} // a remote frame was successfully transmitted } break; block to be repeated (from ‘case 1:’ to ‘case 32:’) case n: // Message n Interrupt CANxIF1CM = 0x7F; // Transfer entire message into inference CANxIF1CR = intid; // register and clear IntPnd and NewDat |
Similar Part No. - AN2341 |
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Similar Description - AN2341 |
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