Posted on July 19, 2007 at 07:05I am using the STR73x, ive tried CAN code in software library and i ve confirmed polling mode works fine, but i failed in interrupt mode. I am not sure if this code does some thing at all. No messages send.
Thanks
void CAN0_Demo_Interrupt(void)
{
CAN_InitTypeDef CAN0Init;
CAN0Init.CAN_Mask = CAN_CR_IE;
CAN0Init.CAN_Bitrate = CAN_BITRATE_125K;
// initialize the interrupt controller
EIC_IRQChannelConfig(CAN0_IRQChannel, ENABLE);
EIC_IRQChannelPriorityConfig(CAN0_IRQChannel, 1);
EIC_IRQCmd(ENABLE);
// initialize the CAN at a standard bitrate, interrupts enabled
CAN_Init(CAN0, &CAN0Init);
// switch into Loopback+Silent mode (self-test)
CAN_EnterTestMode(CAN0, CAN_TESTR_LBACK | CAN_TESTR_SILENT);
// configure the message objects
CAN_InvalidateAllMsgObj(CAN0);
CAN_SetTxMsgObj(CAN0, CAN0_TX_MSGOBJ, CAN_STD_ID);
CAN_SetRxMsgObj(CAN0, CAN0_RX_MSGOBJ, CAN_STD_ID, 0, CAN_LAST_STD_ID, TRUE);
// send a pre-defined data frame
(void)CAN_SendMessage(CAN0, CAN0_TX_MSGOBJ, &TxCan0Msg[0]);
// reception and release are done in the interrupt handler
wait();
// switch back into Normal mode
CAN_LeaveTestMode(CAN0);
// disable interrupts globally
EIC_IRQCmd(DISABLE);
}
