Hi.
I try to send a CAN message and it works.
But there is a problem.
I send a CAN message only 1 time but several CAN messages are sent. (refer to below picture)
I have to send a CAN message only 1 time.
What should I do?
■ MCU : S32K144(68pin)
■ Picture
- 1 : CAN high at CAN transceiver
- 2 : CAN TX at MCU
■ Code
/* Including needed modules to compile this module/procedure */
#include "Cpu.h"
#include "pin_mux.h"
#include "clockMan1.h"
#include "dmaController1.h"
#include "osif1.h"
#include "canCom1.h"
volatile int exit_code = 0;
/* User includes (#include below this line is not maintained by Processor Expert) */
#define MB (0UL)
#define MSG_ID 0x1B0
/*!
\brief The main function for the project.
\details The startup initialization sequence is the following:
* - startup asm routine
* - main()
*/
int main(void)
{
/* Write your local variable definition here */
flexcan_data_info_t dataInfo =
{
.data_length = 1U,
.msg_id_type = FLEXCAN_MSG_ID_STD,
.enable_brs = false,
.fd_enable = false,
.fd_padding = 0U
};
uint8_t toggleLED = 0x55;
/*** Processor Expert internal initialization. DON'T REMOVE THIS CODE!!! ***/
#ifdef PEX_RTOS_INIT
PEX_RTOS_INIT(); /* Initialization of the selected RTOS. Macro is defined by the RTOS component. */
#endif
/*** End of Processor Expert internal initialization. ***/
/* Write your code here */
/* For example: for(;;) { } */
CLOCK_SYS_Init(g_clockManConfigsArr, CLOCK_MANAGER_CONFIG_CNT, g_clockManCallbacksArr, CLOCK_MANAGER_CALLBACK_CNT);
CLOCK_SYS_UpdateConfiguration(0U, CLOCK_MANAGER_POLICY_FORCIBLE);
PINS_DRV_Init(NUM_OF_CONFIGURED_PINS, g_pin_mux_InitConfigArr);
FLEXCAN_DRV_Init(INST_CANCOM1, &canCom1_State, &canCom1_InitConfig0);
FLEXCAN_DRV_ConfigTxMb(INST_CANCOM1, MB, &dataInfo, MSG_ID);
for(;;)
{
if(GPIO_HAL_ReadPins(PTD)>>0==1)
{
GPIO_HAL_ClearPins(PTC,1<<0);
FLEXCAN_DRV_Send(INST_CANCOM1, MB, &dataInfo, MSG_ID, &toggleLED);
}
else
{
GPIO_HAL_SetPins(PTC,1<<0);
}
}
