f105 can配置不知哪里有错误一直不出报文

只看该作者 · 2017-4-5 11:55

清明假期弄半天一直没出结果，很难受

只看该作者 · 2017-4-5 11:58

#include "can.h"
u8 CAN1_Mode_Init(u8 tsjw,u8 tbs2,u8 tbs1,u16 brp,u8 mode)
{GPIO_InitTypeDef GPIO_InitStructure;
CAN_InitTypeDef       CAN_InitStructure;
CAN_FilterInitTypeDef  CAN_FilterInitStructure;
#if CAN_RX0_INT_ENABLE
   NVIC_InitTypeDef  NVIC_InitStructure;
#endif
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_CAN1, ENABLE);//Ê¹ÄÜCAN1Ê±ÖÓ

GPIO_InitStructure.GPIO_Pin = GPIO_Pin_12;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU；
GPIO_Init(GPIOA, &GPIO_InitStructure);
GPIO_PinRemapConfig(GPIO_Remap2_CAN1,ENABLE);

   CAN_InitStructure.CAN_TTCM=DISABLE;
    CAN_InitStructure.CAN_ABOM=DISABLE;
    CAN_InitStructure.CAN_AWUM=DISABLE;
    CAN_InitStructure.CAN_NART=ENABLE;
    CAN_InitStructure.CAN_RFLM=DISABLE;
    CAN_InitStructure.CAN_TXFP=DISABLE;
    CAN_InitStructure.CAN_Mode= mode;

    CAN_InitStructure.CAN_SJW=tsjw;
    CAN_InitStructure.CAN_BS1=tbs2;
    CAN_InitStructure.CAN_BS2=tbs1；
    CAN_InitStructure.CAN_Prescaler=brp;
    CAN_Init(CAN1, &CAN_InitStructure);
CAN_FilterInitStructure.CAN_FilterNumber=0;
   CAN_FilterInitStructure.CAN_FilterMode=CAN_FilterMode_IdMask;
    CAN_FilterInitStructure.CAN_FilterScale=CAN_FilterScale_32bit;
    CAN_FilterInitStructure.CAN_FilterIdHigh=0x0000;
    CAN_FilterInitStructure.CAN_FilterIdLow=0x0000;
    CAN_FilterInitStructure.CAN_FilterMaskIdHigh=0x0000;
    CAN_FilterInitStructure.CAN_FilterMaskIdLow=0x0000;
    CAN_FilterInitStructure.CAN_FilterFIFOAssignment=CAN_Filter_FIFO0;
    CAN_FilterInitStructure.CAN_FilterActivation=ENABLE;
CAN_FilterInit(&CAN_FilterInitStructure);

#if CAN_RX0_INT_ENABLE
CAN_ITConfig(CAN1,CAN_IT_FMP0,ENABLE);
NVIC_InitStructure.NVIC_IRQChannel = CAN1_RX0_IRQn;
    NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
    NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
    NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
    NVIC_Init(&NVIC_InitStructure);
#endif
return 0;}
#if CAN_RX0_INT_ENABLE

void CAN1_RX0_IRQHandler(void)
{CanRxMsg RxMessage;
int i=0;
CAN_Receive(CAN1, 0, &RxMessage);
   Can1_Send_Msg(RxMessage.Data,8);
GPIO_SetBits(GPIOD,GPIO_Pin_3);
GPIO_ResetBits(GPIOD,GPIO_Pin_3);}
#endif
u8 Can1_Send_Msg(u8* msg,u8 len)
{ u8 mbox;
  u16 i=0;
  CanTxMsg TxMessage;
  TxMessage.StdId=0x12;
  TxMessage.ExtId=0x12;
  TxMessage.IDE=0;
  TxMessage.RTR=0;
  TxMessage.DLC=len;
  for(i=0;i<8;i++)
  TxMessage.Data[i]=msg[i];
  mbox= CAN_Transmit(CAN1, &TxMessage);
  i=0;
  while((CAN_TransmitStatus(CAN1, mbox)==CAN_TxStatus_Failed)&&(i<0XFFF))i++;
  if(i>=0XFFF)return 1;
  return 0; }
u8 Can_Receive_Msg(u8 *buf)
{ u32 i;
CanRxMsg RxMessage;
if( CAN_MessagePending(CAN1,CAN_FIFO0)==0)return 0;
CAN_Receive(CAN1, CAN_FIFO0, &RxMessage);
for(i=0;i<8;i++)
buf[i]=RxMessage.Data[i];
return RxMessage.DLC; }

只看该作者 · 2017-4-5 11:58

卡在这里半天了，还是不知哪里有错误，求大神指点