/* Includes ------------------------------------------------------------------*/
#include "stm32f10x.h"
#include "misc.h"
__IO bool Time_Interval_OK;
__IO uint16_t Sec;
__IO uint16_t Min;
__IO uint16_t Hour;
/* -----------------------------------------------*/
/*************************************************
函数: void RCC_Config(void)
功能: 配置系统时钟
参数: 无
返回: 无
**************************************************/
void RCC_Configuration(void)
{
/* Setup the microcontroller system. Initialize the Embedded Flash Interface,
initialize the PLL and update the SystemFrequency variable. */
SystemInit();
/* Enable GPIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC, ENABLE);
/* Enable UART clocks */
RCC_APB1PeriphClockCmd(RCC_APB1Periph_UART4, ENABLE);
}
/*************************************************
函数: void NVIC_Configuration(void)
功能: 切套向量中断控制寄存器
参数: 无
返回: 无
**************************************************/
void NVIC_Configuration(void)
{
NVIC_InitTypeDef NVIC_InitStructure;
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_0); /* Configure the NVIC Preemption Priority Bits */
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn; /* Enable the USART1 Interrupt */
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 0;
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
NVIC_Init(&NVIC_InitStructure);
}
/*************************************************
函数: void GPIO_Configuration(void)
功能: 端口锁定
参数: 无
返回: 无
**************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
/* Configure UART_Tx as alternate function push-pull */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;//GPIO_TxPin;
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
GPIO_Init(GPIOC, &GPIO_InitStructure);
/* Configure UART_Rx as input floating */
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_11;//GPIO_RxPin;
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
GPIO_Init(GPIOC, &GPIO_InitStructure);
}
/*************************************************
函数: void USART_Configuration(void)
功能: 串口配置
参数: 无
返回: 无
**************************************************/
void USART_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 57600; //BaudRate
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//8 Bits
USART_InitStructure.USART_StopBits = USART_StopBits_1; //One Stop Bit
USART_InitStructure.USART_Parity = USART_Parity_No ; // No parity
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//Hardware flow control disabled (RTS and CTS signals)
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //
USART_Init(USART3, &USART_InitStructure); /* Configure the USART1 */
USART_ITConfig(USART3, USART_IT_RXNE, ENABLE); /* Enable USART1 Receive and Transmit interrupts */
USART_Cmd(USART3, ENABLE); /* Enable the USART1 */
}
/*************************************************
函数: int main(void)
功能: 主函数
参数: 无
返回: 无
**************************************************/
int main(void)
{
RCC_Configuration();
NVIC_Configuration();
GPIO_Configuration();
USART_Configuration();
while (1)
{
USART_SendData(UART4, 0x55);
}
}
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