static void USART3_Configuration(void)
{
// Periph CLK Init
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
// GPIO Pins for UART3
USART3_GPIO_Configuration();
// NVIC for UART3
USART3_NVIC_Configuration();
// --------------- USART3 configuration ---------------
// USART1 configured as follow:
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_HardwareFlowControl = USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
// Configure the USART3
USART_Init(USART3, &USART_InitStructure);
// Enable the USART Transmit interrupt: this interrupt is generated when the
// USART1 transmit data register is empty
// USART_ITConfig(USART1, USART_IT_TXE, ENABLE);
// Enable the USART Receive interrupt: this interrupt is generated when the
// USART1 receive data register is not empty
USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);
// Enable USART1
USART_Cmd(USART3, ENABLE);
}
void USART3_Config(void) {
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOB, ENABLE);
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3, ENABLE);
USART_ClockInitTypeDef USART_ClockInitStructure;
GPIO_InitTypeDef UARTTX;
UARTTX.GPIO_Pin = GPIO_Pin_10;
UARTTX.GPIO_Mode = GPIO_Mode_AF_PP;
UARTTX.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitTypeDef UARTRX;
UARTRX.GPIO_Pin = GPIO_Pin_11;
UARTRX.GPIO_Mode = GPIO_Mode_IPU;
UARTRX.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_Init(GPIOB, &UARTTX);
GPIO_Init(GPIOB, &UARTRX);
USART_ClockStructInit(&USART_ClockInitStructure);
USART_ClockInit(USART3, &USART_ClockInitStructure);
USART_InitTypeDef UART3;
UART3.USART_BaudRate = 9600;
UART3.USART_WordLength = USART_WordLength_8b;
UART3.USART_StopBits = USART_StopBits_1;
UART3.USART_Parity = USART_Parity_No;
UART3.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
UART3.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART3, &UART3);
USART_Cmd(USART3, ENABLE);
USART3_NVIC_Configuration();
}