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How to send a CAN message only 1 time

Question asked by Kim JungHyun on Mar 7, 2017
Latest reply on Mar 9, 2017 by Kim JungHyun

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);
    }
}

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