/*## EXTI0 in Polling Mode and SPI4 & SPI5 to Receive AD7768 Data bits on DOUT0 and DOUT1 ###*/	
// Polling for EXTI0 (/DRDY) rising edge to start MCU SPI ports

while (__HAL_GPIO_EXTI_GET_IT(EXTI0) != SET);

{
__HAL_SPI_ENABLE(&Spi4Handle);
__HAL_SPI_ENABLE(&Spi5Handle);
__HAL_GPIO_EXTI_CLEAR_IT(EXTI0);
}
// throw out the last byte/word captured in the previous ODR cycle !!!
Rx_temp = *(__IO uint8_t *)&Spi4Handle.Instance->DR;
Rx_temp = *(__IO uint8_t *)&Spi5Handle.Instance->DR;
while (SPI4_ByteCount < SPI4_CNVByteNum)// total data byte number to read in one conversion cycle
{
if (__HAL_SPI_GET_FLAG(&Spi5Handle, SPI_FLAG_RXNE))//
 	{
SPI_RxBuffer[RxBuf_Idn] = *(__IO uint8_t *)&Spi4Handle.Instance->DR;
	SPI_RxBuffer[RxBuf_Idn+1] = *(__IO uint8_t *)&Spi5Handle.Instance->DR;
		RxBuf_Idn++;
  		SPI4_ByteCount += 2;
    	}
}
__HAL_SPI_DISABLE(&Spi4Handle);
__HAL_SPI_DISABLE(&Spi5Handle);