stm32f103c8t6can通信库函数代码
时间: 2023-07-29 12:14:58 浏览: 146
以下是基于HAL库的STM32F103C8T6 CAN通信库函数代码:
1. 初始化CAN
```c
CAN_HandleTypeDef hcan;
void MX_CAN_Init(void)
{
hcan.Instance = CAN1;
hcan.Init.Prescaler = 6;
hcan.Init.Mode = CAN_MODE_NORMAL;
hcan.Init.SyncJumpWidth = CAN_SJW_1TQ;
hcan.Init.TimeSeg1 = CAN_BS1_13TQ;
hcan.Init.TimeSeg2 = CAN_BS2_2TQ;
hcan.Init.TimeTriggeredMode = DISABLE;
hcan.Init.AutoBusOff = ENABLE;
hcan.Init.AutoWakeUp = DISABLE;
hcan.Init.AutoRetransmission = ENABLE;
hcan.Init.ReceiveFifoLocked = DISABLE;
hcan.Init.TransmitFifoPriority = DISABLE;
if (HAL_CAN_Init(&hcan) != HAL_OK)
{
Error_Handler();
}
}
```
2. CAN发送函数
```c
CAN_TxHeaderTypeDef TxHeader;
uint32_t TxMailbox;
uint8_t TxData[8];
void CAN_Send(uint8_t *data, uint32_t id)
{
TxHeader.StdId = id;
TxHeader.RTR = CAN_RTR_DATA;
TxHeader.IDE = CAN_ID_STD;
TxHeader.DLC = 8;
for (int i = 0; i < 8; i++)
{
TxData[i] = data[i];
}
if (HAL_CAN_AddTxMessage(&hcan, &TxHeader, TxData, &TxMailbox) != HAL_OK)
{
Error_Handler();
}
}
```
3. CAN接收函数
```c
CAN_RxHeaderTypeDef RxHeader;
uint8_t RxData[8];
void CAN_Receive(void)
{
if (HAL_CAN_GetRxMessage(&hcan, CAN_RX_FIFO0, &RxHeader, RxData) != HAL_OK)
{
Error_Handler();
}
// 处理接收到的数据
// ...
}
```
以上是简单的CAN通信库函数代码,需要根据具体的应用场景进行修改。
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