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AD9833 Module Control

BYHLM

Hello,

I want to control the ad9833 module with the stm32f4 development board. I have a library but I couldn't get SPI communication. I cannot get any wave output from the module. I cannot adjust frequency. where can the problem be? I need to create this project with CUBEMX and do the work using the Keil development environment. I am using the SPI1 module of the board. I use PA5 pin as SCK, PA7 pin as MOSI and PB2 pin as GPIO reset. Below is the code part that i tried to spi communication. 

void ad9833_send(uint16_t dat)
{ 
   unsigned char i; 
	HAL_GPIO_WritePin(GPIOA,GPIO_PIN_5,GPIO_PIN_SET); //clk = 1


   for(i=0; i<16; i++)
   {

      if (dat & 0x8000)
      {
         HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_SET); 
      }
      else
      {
         HAL_GPIO_WritePin(GPIOA, GPIO_PIN_7, GPIO_PIN_RESET); 

      }
      HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_SET); 

      dat <<= 1;     
      __NOP();
      __NOP();			
      HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET); 
   }
	//HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, GPIO_PIN_RESET); 

}