/*********************************************************************************************************//**
* @brief Configures USART.
* @retval None
***********************************************************************************************************/
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure ;
USART_InitStructure.USART_BaudRate = 115200 ;
USART_InitStructure.USART_WordLength = USART_WORDLENGTH_8B ;
USART_InitStructure.USART_StopBits = USART_STOPBITS_1;
USART_InitStructure.USART_Parity = USART_PARITY_NO ;
USART_InitStructure.USART_Mode = USART_MODE_NORMAL;
/* Enable GPIO and AFIO clock */
CKCU_APBPerip0ClockConfig(CKCU_APBEN0_PA | CKCU_APBEN0_AFIO, ENABLE);
/* Enable USART clock */
CKCU_APBPerip0ClockConfig(CKCU_APBEN0_USART, ENABLE);
/* Configure USART Tx/Rx as alternate function */
AFIO_GPAConfig(AFIO_PIN_8 | AFIO_PIN_9, AFIO_MODE_2);
/* USART configuration */
USART_Init(USART, &USART_InitStructure);
}
/**
* @brief 初始化SPI0
* @param
* @retval None
*/
void SPI0_Init(void)
{
CKCU_PeripClockConfig_TypeDef CKCUClock = {{0}};
/* Enable PA & SPI0 & AFIO */
CKCUClock.Bit.PA = 1;
CKCUClock.Bit.SPI0 = 1;
CKCUClock.Bit.AFIO = 1;
CKCU_PeripClockConfig(CKCUClock, ENABLE);
/* SPI0_SEL idle state is HIGH */
GPIO_PullResistorConfig(HT_GPIOA, GPIO_PIN_8, GPIO_PR_UP);
/* Configure related IO to SPI0 */
AFIO_GPAConfig(AFIO_PIN_4 | AFIO_PIN_5 | AFIO_PIN_6 | AFIO_PIN_7, AFIO_MODE_5);
/* SPI0 configuration */
SPI_InitStructure.SPI_Mode = SPI_MASTER;
SPI_InitStructure.SPI_FIFO = SPI_FIFO_DISABLE;
SPI_InitStructure.SPI_DataLength = SPI_DATALENGTH_8;
SPI_InitStructure.SPI_SELMode = SPI_SEL_SOFTWARE;
SPI_InitStructure.SPI_SELPolarity = SPI_SELPOLARITY_LOW;
SPI_InitStructure.SPI_CPOL = SPI_CPOL_LOW;
SPI_InitStructure.SPI_CPHA = SPI_CPHA_FIRST;
SPI_InitStructure.SPI_FirstBit = SPI_FIRSTBIT_MSB;
SPI_InitStructure.SPI_RxFIFOTriggerLevel = 0;
SPI_InitStructure.SPI_TxFIFOTriggerLevel = 0;
SPI_InitStructure.SPI_ClockPrescaler = 4;
SPI_Init(HT_SPI0, &SPI_InitStructure);
/* Set SEL as output mode for slave select */
SPI_SELOutputCmd(HT_SPI0, ENABLE);
/* Enable SPI0 */
SPI_Cmd(HT_SPI0, ENABLE);
}
