[SOLVED] EFM32 SPI manual CS makes TX ,CLK problem not functioning

[yefj]

Hello,I am using EFM32LG USART0 LOC0 for my Controller diagram as shown in the data sheet bellow. I have built the code bellow based on the series0 SPI MASTER example in github. But when i try to put autoCSenable =false in order to manualy doing chipselect then i dont have any clock from PORT E 12 and I dont have any data sending in port E pin 10. I get Voltage values which where set by default in GPIO.
Where did i go wrong?
Thanks.

/**************************************************************************//**
 * @main_series0_G_GG_WG_LG
 * @brief Demonstrates USART1 as SPI master.
 * @version 0.0.1
 ******************************************************************************
 * @section License
 * <b>Copyright 2018 Silicon Labs, Inc. http://www.silabs.com</b>
 *******************************************************************************
 *
 * This file is licensed under the Silabs License Agreement. See the file
 * "Silabs_License_Agreement.txt" for details. Before using this software for
 * any purpose, you must agree to the terms of that agreement.
 *
 ******************************************************************************/

#include "em_device.h"
#include "em_chip.h"
#include "em_cmu.h"
#include "em_gpio.h"
#include "em_usart.h"

#define TX_BUFFER_SIZE   4
#define RX_BUFFER_SIZE   TX_BUFFER_SIZE
volatile uint32_t msTicks; /* counts 1ms timeTicks */

void Delay(uint32_t dlyTicks);
void SysTick_Handler(void)
{
  msTicks++;       /* increment counter necessary in Delay()*/
}
void Delay(uint32_t dlyTicks)
{
  uint32_t curTicks;

  curTicks = msTicks;
  while ((msTicks - curTicks) < dlyTicks) ;
}

uint8_t TxBuffer[TX_BUFFER_SIZE] = {0b00000011,0b00000111,0b11111111, 0b11110000};
uint32_t TxBufferIndex = 0;

uint8_t RxBuffer[RX_BUFFER_SIZE] = {0};
uint32_t RxBufferIndex = 0;


int main(void)
{
  // Initialize chip
  CHIP_Init();

  CMU_ClockEnable(cmuClock_GPIO, true);
  CMU_ClockEnable(cmuClock_USART0, true);
  GPIO_PinModeSet(gpioPortE, 12, gpioModePushPull, 1); // US1_CLK is push pull
    GPIO_PinModeSet(gpioPortA, 2, gpioModePushPull, 1); // US1_CS is push pull
    GPIO_PinModeSet(gpioPortE, 10, gpioModePushPull, 0); // US1_TX (MOSI) is push pull
    GPIO_PinModeSet(gpioPortE, 11, gpioModeInput, 1);    // US1_RX (MISO) is input
    GPIO_PinModeSet(gpioPortA, 3, gpioModePushPull, 0);    // LDAC

  ///////////////////////////////////////////////////////
  // Start with default config, then modify as necessary
   USART_InitSync_TypeDef config = USART_INITSYNC_DEFAULT;
   config.master       = true;            // master mode
   config.baudrate     = 1000000;         // CLK freq is 1 MHz
   config.autoCsEnable = false;            // CS pin controlled by hardware, not firmware
   config.clockMode    = usartClockMode0; // clock idle low, sample on rising/first edge
   config.msbf         = true;            // send MSB first

   USART_InitSync(USART0, &config);
   USART0->ROUTE = USART_ROUTE_CLKPEN | USART_ROUTE_TXPEN | USART_ROUTE_RXPEN | USART_ROUTE_LOCATION_LOC0;
   ///////////////////////////////////////////
   USART_Enable(USART0, usartEnable);
    TxBufferIndex = 0;
  while(1)
  {
      Delay(1000);
        GPIO_PinOutClear(gpioPortA,2);
      USART_Tx(USART0, TxBuffer[TxBufferIndex++]);
      GPIO_PinOutSet(gpioPortA,2);
      // Stop sending once we've gone through the whole TxBuffer
      if (TxBufferIndex == TX_BUFFER_SIZE)
      {
        TxBufferIndex = 0;
      }

  }
  }