CAN 是 Controller Area Network 控制器局域网 的缩写,是 ISO 国际标准化的串行通信协议。CAN 总线由两根线(CANL 和 CANH)组成,允许挂载多个设备节点。CAN 协议经过 ISO 标准化后有两个标准:ISO11898 标准(高速 CAN)和 ISO11519-2 标准(低速 CAN)。其中 ISO11898 是针对通信速率为 125Kbps ~ 1Mbps ...
/* Request transmission */SET_BIT(hcan->Instance->sTxMailBox[transmitmailbox].TIR, CAN_TI0R_TXRQ); /* Return function status */returnHAL_OK;}else{/* Update error code */hcan->ErrorCode |= HAL_CAN_ERROR_PARAM;...
uint8_t MyCAN_ReceiveFlag(void) { if (CAN_MessagePending(CAN1, CAN_FIFO0) > 0)//判断是否接收到数据 { return 1; } return 0; } void MyCAN_Receive(uint32_t *ID, uint8_t *Length, uint8_t *Data) { CanRxMsg RxMessage; CAN_Receive(CAN1, CAN_FIFO0, &RxMessage); if (RxMessa...
CAN_HandleTypeDef hcan1; CAN_FilterTypeDef sFilterConfig;//CAN初始化:/* CAN init function */ void MX_CAN_Init(void) {hcan1.Instance = CAN1;hcan1.Init.Prescaler = 9;hcan1.Init.Mode = CAN_MODE_LOOPBACK; // 回环模式,测试用。hcan1.Init.SyncJumpWidth = CAN_SJW_1TQ;hcan1.Init.T...
Std_ReturnType CanTrcv_CheckWakeFlag (uint8 Transceiver ) 7.1.15. CanTrcv_DeInit 说明: 取消初始化CanTrcv模块。 void CanTrcv_DeInit ( void ) 7.1.16. CanTrcv_MainFunction 说明: 用于扫描所有总线以查找唤醒事件并执行这些事件的服务。 void CanTrcv_MainFunction ( void ) 7.1.17. CanTrcv_MainFunct...
* FunctionName : void can_stop(void) * Description : 停止CAN总线 * Parameters : none * Returns : none ***/voidcan_stop(void) { HAL_CAN_Stop(&hcan); } 4.4在 user_can.c 的 uint8_t Can_Send_Msg(uint8_t* msg,uint8_t len)函数中...
* check the return value of this function. Imagine that every * read{b,l}, write{b,l} and friends would be bracketed in "if ( < 0) * error();", it would be a great mess (well there are some situation * when exception handling C++ like could be useful after all). So we ...
{ /*check select mailbox is empty */ switch (1 << box_num) { case CAN_TX_MAILBOX0: if (HAL_IS_BIT_SET(hcan->Instance->TSR, CAN_TSR_TME0) != SET) { /* Change CAN state */ hcan->State = HAL_CAN_STATE_ERROR; /* Return function status */ return -RT_ERROR; } break;...
105. Can we use the return type void in the main() function in a C++ program? Yes No Answer:B) NO Explanation: No, we cannot use the return type void in the main () function, we have to use the return type "int" with the main() function. ...
问带STM32f103c8t6蓝牙芯片和can总线的HAL_CAN_ERROR_PARAMEN在之前的博文中分享过一系列一文搞懂：SPI...