#include "sys.h"
#include "usart.h"
#include "serial_pp.h"
//////////////////////////////////////////////////////////////////////////////////
//如果使用ucos,则包括下面的头文件即可.
#if SYSTEM_SUPPORT_OS
#include "includes.h" //ucos 使用
#endif
//加入以下代码,支持printf函数,而不需要选择use MicroLIB
#if 1
#pragma import(__use_no_semihosting)
//标准库需要的支持函数
struct __FILE
{
int handle;
};
FILE __stdout;
//定义_sys_exit()以避免使用半主机模式
_sys_exit(int x)
{
x = x;
}
//重定义fputc函数
int fputc(int ch, FILE *f)
{
while((USART1->SR&0X40)==0);//循环发送,直到发送完毕
USART1->DR = (u8) ch;
return ch;
}
#endif
#if EN_USART1_RX //如果使能了接收
//串口1中断服务程序
//注意,读取USARTx->SR能避免莫名其妙的错误
u8 USART_RX_BUF[USART_REC_LEN]; //接收缓冲,最大USART_REC_LEN个字节.
//接收状态
//bit15， 接收完成标志
//bit14， 接收到0x0d
//bit13~0， 接收到的有效字节数目
u16 USART_RX_STA=0; //接收状态标记
//初始化IO 串口1
//bound:波特率
void uart_init(u32 bound){
//GPIO端口设置
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE); //使能GPIOA时钟
RCC_APB2PeriphClockCmd(RCC_APB2Periph_USART1,ENABLE);//使能USART1时钟
//串口1对应引脚复用映射
GPIO_PinAFConfig(GPIOA,GPIO_PinSource9,GPIO_AF_USART1); //GPIOA9复用为USART1
GPIO_PinAFConfig(GPIOA,GPIO_PinSource10,GPIO_AF_USART1); //GPIOA10复用为USART1
//USART1端口配置
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_9 | GPIO_Pin_10; //GPIOA9与GPIOA10
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//复用功能
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //速度50MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //推挽复用输出
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //上拉
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化PA9，PA10
//USART1 初始化设置
USART_InitStructure.USART_BaudRate = bound;//波特率设置
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式
USART_Init(USART1, &USART_InitStructure); //初始化串口1
USART_Cmd(USART1, ENABLE); //使能串口1
//USART_ClearFlag(USART1, USART_FLAG_TC);
#if EN_USART1_RX
USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);//开启相关中断
//Usart1 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART1_IRQn;//串口1中断通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=0;//抢占优先级3
NVIC_InitStructure.NVIC_IRQChannelSubPriority =0; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器、
#endif
}
u8 buffer[500];
u32 stat=0;
u32 i ,j;
int len1;
u8 BUF[50];
u8 Finish = 0;
u8 USART_FINISH = 0;//串口接收完成标志
void USART1_IRQHandler(void) //串口1中断服务程序
{
u8 Res;
#if SYSTEM_SUPPORT_OS //如果SYSTEM_SUPPORT_OS为真，则需要支持OS.
OSIntEnter();
#endif
if(USART_GetITStatus(USART1, USART_IT_RXNE) != RESET) //接收中断(接收到的数据必须是0x0d 0x0a结尾)
{
Res =USART_ReceiveData(USART1);//(USART1->DR); //读取接收到的数据
buffer[stat]=Res;
// buffer[stat] = USART_ReceiveData(USART1);
if(buffer[stat] == 0xFC && USART_FINISH == 1){
buffer[0]=0xFC;
stat=0;
USART_FINISH = 0;
}
if(buffer[0] == 0xFC && stat==5){
for(i = 0; i < 6; i++) {
BUF = buffer;
}
len1 = CharBuf2Int(BUF + 2, 4);//数据体长度
if(len1 > 50){
for(i = 0; i < 6; i++) {
BUF = 0;
}
}
}
if((len1 < 50)&&(stat==6+len1) ){
for(i = 0; i <= len1+6; i++) {
BUF = buffer;
USART_FINISH = 1;
}
Finish = 1;
stat = 0;
// for(j=0;j<=6+len1;j++){
// USART_SendData(USART1,buffer[j]);
// while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);//等待发送结束
// }
// for(j=0;j<=6+len1;j++){
// USART_SendData(USART1,BUF[j]);
// while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);//等待发送结束
// }
}
else {
stat++;
}
/* 清除串口接收标志*/
USART_ClearFlag(USART1, USART_FLAG_RXNE);
}
#if SYSTEM_SUPPORT_OS //如果SYSTEM_SUPPORT_OS为真，则需要支持OS.
OSIntExit();
#endif
}
u8 TxBuffer[256];
u8 TxCounter=0;
u8 count=0;
void Initial_UART2(u32 bound)
{
//GPIO端口设置
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOA,ENABLE); //使能GPIOA时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART2,ENABLE);//使能USART2时钟
//串口1对应引脚复用映射
GPIO_PinAFConfig(GPIOA,GPIO_PinSource2,GPIO_AF_USART2); //GPIOA9复用为USART1
GPIO_PinAFConfig(GPIOA,GPIO_PinSource3,GPIO_AF_USART2); //GPIOA10复用为USART1
//USART1端口配置
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_2 | GPIO_Pin_3; //GPIOA9与GPIOA10
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//复用功能
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //速度50MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //推挽复用输出
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //上拉
GPIO_Init(GPIOA,&GPIO_InitStructure); //初始化PA9，PA10
//USART1 初始化设置
USART_InitStructure.USART_BaudRate = bound;//波特率设置
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式
USART_Init(USART2, &USART_InitStructure); //初始化串口1
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);//开启相关中断
USART_Cmd(USART2, ENABLE); //使能串口1
USART_ClearFlag(USART2, USART_FLAG_TC);
//Usart1 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART2_IRQn;//串口1中断通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=1;//抢占优先级3
NVIC_InitStructure.NVIC_IRQChannelSubPriority =0; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器、
}
u8 chrTemp[250];
void CopeSerialData(unsigned char ucData);
void USART2_IRQHandler(void)
{
// printf(&quot;USART2
&quot;);
if(USART_GetITStatus(USART2, USART_IT_TXE) != RESET)
{
USART_SendData(USART2, TxBuffer[TxCounter++]);
if(TxCounter == count)
{
USART_ITConfig(USART2, USART_IT_TXE, DISABLE);// ??????
}
USART_ClearITPendingBit(USART2, USART_IT_TXE);
}
else if(USART_GetITStatus(USART2, USART_IT_RXNE) != RESET)
{
CopeSerialData((unsigned char)USART2->DR);//????
USART_ClearITPendingBit(USART2, USART_IT_RXNE);
}
USART_ClearITPendingBit(USART2,USART_IT_ORE);
}
void uart3_init(u32 bound){
//GPIO端口设置
GPIO_InitTypeDef GPIO_InitStructure;
USART_InitTypeDef USART_InitStructure;
NVIC_InitTypeDef NVIC_InitStructure;
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_GPIOD,ENABLE); //使能GPIOA时钟
RCC_APB1PeriphClockCmd(RCC_APB1Periph_USART3,ENABLE);//使能USART1时钟
//串口1对应引脚复用映射
GPIO_PinAFConfig(GPIOD,GPIO_PinSource8,GPIO_AF_USART1); //GPIOA9复用为USART1
GPIO_PinAFConfig(GPIOD,GPIO_PinSource9,GPIO_AF_USART1); //GPIOA10复用为USART1
//USART1端口配置
GPIO_InitStructure.GPIO_Pin = GPIO_Pin_8 | GPIO_Pin_9; //GPIOA9与GPIOA10
GPIO_InitStructure.GPIO_Mode = GPIO_Mode_AF;//复用功能
GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz; //速度50MHz
GPIO_InitStructure.GPIO_OType = GPIO_OType_PP; //推挽复用输出
GPIO_InitStructure.GPIO_PuPd = GPIO_PuPd_UP; //上拉
GPIO_Init(GPIOD,&GPIO_InitStructure); //初始化PA9，PA10
//USART1 初始化设置
USART_InitStructure.USART_BaudRate = bound;//波特率设置
USART_InitStructure.USART_WordLength = USART_WordLength_8b;//字长为8位数据格式
USART_InitStructure.USART_StopBits = USART_StopBits_1;//一个停止位
USART_InitStructure.USART_Parity = USART_Parity_No;//无奇偶校验位
USART_InitStructure.USART_HardwareFlowControl = USART_HardwareFlowControl_None;//无硬件数据流控制
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx; //收发模式
USART_Init(USART3, &USART_InitStructure); //初始化串口1
USART_Cmd(USART3, ENABLE); //使能串口1
//USART_ClearFlag(USART1, USART_FLAG_TC);
USART_ITConfig(USART3, USART_IT_RXNE, ENABLE);//开启相关中断
//Usart1 NVIC 配置
NVIC_InitStructure.NVIC_IRQChannel = USART3_IRQn;//串口1中断通道
NVIC_InitStructure.NVIC_IRQChannelPreemptionPriority=8;//抢占优先级3
NVIC_InitStructure.NVIC_IRQChannelSubPriority =0; //子优先级3
NVIC_InitStructure.NVIC_IRQChannelCmd = ENABLE; //IRQ通道使能
NVIC_Init(&NVIC_InitStructure); //根据指定的参数初始化VIC寄存器、
}
u8 AAG[6];
u8 ag;
u8 AAG_FLAG;
void USART3_IRQHandler(void) //串口1中断服务程序
{
if(USART_GetITStatus(USART3, USART_IT_RXNE) != RESET) //接收中断(接收到的数据必须是0x0d 0x0a结尾)
{
AAG[ag++] = USART_ReceiveData(USART3);
// USART_SendData(USART3,cards[jiaobiao-1]);
}
/* 清除串口接收标志*/
USART_ClearFlag(USART3, USART_FLAG_RXNE);
if(ag == 6){
ag = 0;
AAG_FLAG = 1;
}
}
#endif |
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