#include "stm32f10x.h"
void RCC_Configuration(void);
void GPIO_Configuration(void);
void USART_Configuration(u32 BaudRate);
void SendData(void);
int main(void)
{
RCC_Configuration();
GPIO_Configuration();
USART_Configuration(9600);
SendData();
}
void RCC_Configuration()
{
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA|RCC_APB2Periph_AFIO|RCC_APB2Periph_USART1,ENABLE);
}
void GPIO_Configuration()
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_AF_PP;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_6;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);
GPIO_InitStructure.GPIO_Mode=GPIO_Mode_IN_FLOATING;
GPIO_InitStructure.GPIO_Pin=GPIO_Pin_8;
GPIO_InitStructure.GPIO_Speed=GPIO_Speed_50MHz;
GPIO_Init(GPIOA,&GPIO_InitStructure);
//GPIO_PinRemapConfig(GPIO_Remap_USART1,ENABLE);
}
void USART_Configuration(u32 BaudRate)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate=BaudRate;
USART_InitStructure.USART_HardwareFlowControl=USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode=USART_Mode_Rx|USART_Mode_Tx;
USART_InitStructure.USART_Parity=USART_Parity_No;
USART_InitStructure.USART_StopBits=USART_StopBits_1;
USART_InitStructure.USART_WordLength=USART_WordLength_9b;
USART_Init(USART1,&USART_InitStructure);
USART_Cmd(USART1,ENABLE);
}
void SendData()
{
u8 i,data;
data='A';
for(i=0;i<8;i++)
{
USART_SendData(USART1,data);
data++;
while(USART_GetFlagStatus(USART1, USART_FLAG_TC)==RESET);
}
} |
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