STM32F103 5个串口同时使用程序测试成功！ -

#include "stm32f10x.h"
#include "delay.h"
#include "HX711.h"
#include "usart.h"
#include "usart2.h"
#include "usart3.h"
#include "usart4.h"
#include "usart5.h"
int main(void)
{
u8 i;
u8 len1;
u8 len2;
u8 len3;
u8 len4;
u8 len5;
u16 times=0;
delay_init();
NVIC_PriorityGroupConfig(NVIC_PriorityGroup_2);
uart1_init(115200);
uart2_init(115200);
uart3_init(115200);
uart4_init(115200);
uart5_init(115200);
while(1)
{
if(USART1_RX_STA&0x8000)
{
len1=USART1_RX_STA&0x3fff;
for(i=0;i<len1;i++)
{
USART_SendData(USART1, USART1_RX_BUF[i]);
while(USART_GetFlagStatus(USART1,USART_FLAG_TC)!=SET);
}
USART1_RX_STA=0;
}else
{
if(times%200==0)
{
u1_printf("This is u1\n");
}
}
if(USART2_RX_STA&0x8000)
{
len2=USART2_RX_STA&0x3fff;
for(i=0;i<len2;i++)
{
USART_SendData(USART2, USART2_RX_BUF[i]);
while(USART_GetFlagStatus(USART2,USART_FLAG_TC)!=SET);
}
USART2_RX_STA=0;
}else
{
if(times%200==0)
{
u2_printf("This is u2\n");
}
}
if(USART3_RX_STA&0x8000)
{
len3 = USART3_RX_STA&0x3fff;
for(i = 0;i < len3;i++)
{
USART_SendData(USART3, USART3_RX_BUF[i]);
while(USART_GetFlagStatus(USART3,USART_FLAG_TC)!=SET);
}
USART3_RX_STA=0;
}else
{
if(times%200==0)
{
u3_printf("This is u3\n");
}
}
if(USART4_RX_STA&0x8000)
{
len4 = USART4_RX_STA&0x3fff;
for(i = 0;i < len4;i++)
{
USART_SendData(UART4, USART4_RX_BUF[i]);
while(USART_GetFlagStatus(UART4,USART_FLAG_TC)!=SET);
}
USART4_RX_STA=0;
}else
{
if(times%200==0)
{
u4_printf("This is u4\n");
}
}
if(USART5_RX_STA&0x8000)
{
len5 = USART5_RX_STA&0x3fff;
for(i = 0;i < len5;i++)
{
USART_SendData(UART5, USART5_RX_BUF[i]);
while(USART_GetFlagStatus(UART5,USART_FLAG_TC)!=SET);
}
USART5_RX_STA=0;
}else
{
if(times%200==0)
{
u5_printf("This is u5\n");
}
}
times++;
delay_ms(10);
}
}

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