130 lines
2.8 KiB
C
130 lines
2.8 KiB
C
#include "stm32f10x.h" // Device header
|
|
#include <stdio.h>
|
|
#include <stdarg.h>
|
|
|
|
uint8_t Serial_RxData;
|
|
uint8_t Serial_RxFlag;
|
|
|
|
void Serial_Init(void)
|
|
{
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1, ENABLE);
|
|
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOA, ENABLE);
|
|
|
|
GPIO_InitTypeDef GPIO_InitStructure;
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF_PP;
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9;
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
|
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
|
|
|
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU;
|
|
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_10;
|
|
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
|
|
GPIO_Init(GPIOA, &GPIO_InitStructure);
|
|
|
|
USART_InitTypeDef USART_InitStructure;
|
|
USART_InitStructure.USART_BaudRate = 9600;
|
|
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;
|
|
USART_InitStructure.USART_Mode = USART_Mode_Tx | USART_Mode_Rx;
|
|
USART_InitStructure.USART_Parity = USART_Parity_No;
|
|
USART_InitStructure.USART_StopBits = USART_StopBits_1;
|
|
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
|
|
USART_Init(USART1, &USART_InitStructure);
|
|
|
|
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);
|
|
|
|
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
|
|
|
|
NVIC_InitTypeDef NVIC_InitStructure;
|
|
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;
|
|
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE;
|
|
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority = 1;
|
|
NVIC_InitStructure.NVIC_IRQChannelSubPriority = 1;
|
|
NVIC_Init(&NVIC_InitStructure);
|
|
|
|
USART_Cmd(USART1, ENABLE);
|
|
}
|
|
|
|
void Serial_SendByte(uint8_t Byte)
|
|
{
|
|
USART_SendData(USART1, Byte);
|
|
while (USART_GetFlagStatus(USART1, USART_FLAG_TXE) == RESET);
|
|
}
|
|
|
|
void Serial_SendArray(uint8_t *Array, uint16_t Length)
|
|
{
|
|
uint16_t i;
|
|
for (i = 0; i < Length; i ++)
|
|
{
|
|
Serial_SendByte(Array[i]);
|
|
}
|
|
}
|
|
|
|
void Serial_SendString(char *String)
|
|
{
|
|
uint8_t i;
|
|
for (i = 0; String[i] != '\0'; i ++)
|
|
{
|
|
Serial_SendByte(String[i]);
|
|
}
|
|
}
|
|
|
|
uint32_t Serial_Pow(uint32_t X, uint32_t Y)
|
|
{
|
|
uint32_t Result = 1;
|
|
while (Y --)
|
|
{
|
|
Result *= X;
|
|
}
|
|
return Result;
|
|
}
|
|
|
|
void Serial_SendNumber(uint32_t Number, uint8_t Length)
|
|
{
|
|
uint8_t i;
|
|
for (i = 0; i < Length; i ++)
|
|
{
|
|
Serial_SendByte(Number / Serial_Pow(10, Length - i - 1) % 10 + '0');
|
|
}
|
|
}
|
|
|
|
int fputc(int ch, FILE *f)
|
|
{
|
|
Serial_SendByte(ch);
|
|
return ch;
|
|
}
|
|
|
|
void Serial_Printf(char *format, ...)
|
|
{
|
|
char String[100];
|
|
va_list arg;
|
|
va_start(arg, format);
|
|
vsprintf(String, format, arg);
|
|
va_end(arg);
|
|
Serial_SendString(String);
|
|
}
|
|
|
|
uint8_t Serial_GetRxFlag(void)
|
|
{
|
|
if (Serial_RxFlag == 1)
|
|
{
|
|
Serial_RxFlag = 0;
|
|
return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
uint8_t Serial_GetRxData(void)
|
|
{
|
|
return Serial_RxData;
|
|
}
|
|
|
|
void USART1_IRQHandler(void)
|
|
{
|
|
if (USART_GetITStatus(USART1, USART_IT_RXNE) == SET)
|
|
{
|
|
Serial_RxData = USART_ReceiveData(USART1);
|
|
Serial_RxFlag = 1;
|
|
USART_ClearITPendingBit(USART1, USART_IT_RXNE);
|
|
}
|
|
}
|