void TSC_Init(void)
{
#if TOUCH_SCREEN_CAPABILITY
SPI_InitTypeDef SPI_InitStructure;
TSC_GPIO_Configuration();
RCC_APB2PeriphClockCmd(RCC_APB2Periph_SPI1, ENABLE);
SPI_InitStructure.SPI_Direction = SPI_Direction_2Lines_FullDuplex;
SPI_InitStructure.SPI_Mode = SPI_Mode_Master;
SPI_InitStructure.SPI_DataSize = SPI_DataSize_8b;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_Low;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_1Edge;
SPI_InitStructure.SPI_NSS = SPI_NSS_Soft;
SPI_InitStructure.SPI_BaudRatePrescaler = SPI_BaudRatePrescaler_64;
SPI_InitStructure.SPI_FirstBit = SPI_FirstBit_MSB;
SPI_InitStructure.SPI_CRCPolynomial = 7;
SPI_Init(SPI1, &SPI_InitStructure);
SPI_Cmd(SPI1, ENABLE);
TSC_EXTI_Configuration();
TSC_NVIC_Configuration();
#endif
}
/**
* @brief Initializes the IO Expander registers.
* @param None
* @retval - 0: if all initializations are OK.
*/
uint32_t GL_TSC_Interface_Init(void)
{
#if TOUCH_SCREEN_CAPABILITY
/* Configure the needed pins */
TSC_GPIO_Configuration();
/* Read IO Expander 1 ID */
if(IOE_IsOperational(pTscHwParam.TSC_DeviceRegister))
{
return 1;
}
/* Generate IOExpander Software reset */
IOE_Reset(pTscHwParam.TSC_DeviceRegister);
/* Disable all the Functionnalities */
IOE_FnctCmd(pTscHwParam.TSC_DeviceRegister, IOE_IO_FCT | IOE_TEMPSENS_FCT | IOE_TS_FCT | IOE_ADC_FCT, DISABLE);
#endif
return 0; /* Configuration is OK */
}
