void main(void)
{
#ifdef DEBUG
debug();
#endif
RCCU_Div2Config ( ENABLE);
RCCU_FCLKConfig ( RCCU_RCLK_2 );
RCCU_PCLKConfig (RCCU_RCLK_2);
RCCU_MCLKConfig (RCCU_DEFAULT);
RCCU_PLL1Config (RCCU_PLL1_Mul_24, RCCU_Div_2);
while(RCCU_FlagStatus(RCCU_PLL1_LOCK)==RESET);
RCCU_RCLKSourceConfig (RCCU_PLL1_Output) ;
APB_ClockConfig(APB1,ENABLE,CAN_Periph);
// initialize the I/O ports for the CAN pins
// setup GPIO 1.11 (CAN RX pin) as input Tristate CMOS
GPIO_Config(GPIO1, 0x0800, GPIO_IN_TRI_CMOS);
// setup GPIO 1.12 (CAN TX pin) as output alternate Push-pull
GPIO_Config(GPIO1, 0x1000, GPIO_AF_PP);
// initialize the CAN at a standard bitrate
CAN_Init(CAN_CR_INIT, CAN_BITRATE_100K);
// configure the message objects
CAN_InvalidateAllMsgObj();
CAN_SetUnusedMsgObj(CAN_TX_MSGOBJ);
CAN_SetUnusedMsgObj(CAN_RX_MSGOBJ);
CAN_SetTxMsgObj(CAN_TX_MSGOBJ, CAN_STD_ID);
CAN_SetRxMsgObj(CAN_RX_MSGOBJ, CAN_STD_ID, 0, CAN_LAST_STD_ID, TRUE);
while(1)
{
// transmit
CAN_SendMessage(CAN_TX_MSGOBJ, &TxCanMsg);
// wait until end of transmission
CAN_WaitEndOfTx();
// transmission succeeded
// release the message objects
CAN_ReleaseTxMessage(CAN_TX_MSGOBJ);
// wait
wait();
}
}
这是一个can的发送程序，晶振采用的是8M的，请高手帮忙看看，谢谢了。 |
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