TMS570LC4357: SPI SPI1CLK no output signal

Hello,

What are you trying to do, setting the device as slave or master? The clock is always supplied by the master.

Hi Miro,

I had setup my TMS570LC4357 as a MASTER and enable CLKMOD. The thing that I want to do which I want to generate a clock frequency with 8 MHz because I need it to transmit data to another ADC board (slave). Then, I upload my code to my device and probe spi1clk pin to my oscilloscope. There is no output clock signal on my oscilloscope. Kindly help me.

/* USER CODE BEGIN (0) */
#include "HL_spi.h"
/* USER CODE END */

/* Include Files */

#include "HL_sys_common.h"

/* USER CODE BEGIN (1) */
/* USER CODE END */

/** @fn void main(void)
*   @brief Application main function
*   @note This function is empty by default.
*
*   This function is called after startup.
*   The user can use this function to implement the application.
*/

/* USER CODE BEGIN (2) */
uint16_t TX_SEND[10]={0x0010};
uint16_t RX_RECEIVE[10];
/* USER CODE END */

uint8	emacAddress[6U] = 	{0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU, 0xFFU};
uint32 	emacPhyAddress	=	1U;

int main(void)
{
/* USER CODE BEGIN (3) */
    spiInit();


    spiDAT1_t spiTrans1_t;

    spiTrans1_t.CS_HOLD = FALSE;
    spiTrans1_t.WDEL = TRUE;
    spiTrans1_t.DFSEL = SPI_FMT_0;
    spiTrans1_t.CSNR = FALSE;

    while(1)
    {
        spiEnableLoopback(spiREG1, 1u);
        spiTransmitAndReceiveData(spiREG1, &spiTrans1_t, 16, TX_SEND, RX_RECEIVE);
    }
/* USER CODE END */

    return 0;
}


/* USER CODE BEGIN (4) */
/* USER CODE END */

Hello,

Please, check in PINMUX tab if all used SPI pins are pinmuxed to be used with SPI module. Also make unused SPI pins as non functional (GIO)

Hi Miro,

I also had configured that part and disable R2 MIBSPI1NCS but still get the same result.

Hi Miro,

Is there any way I can know whether my slave receive data because my oscilloscope still couldn't get any clock signal from spi1clk.