基于485的stm32雙機通信程序

ID:585986 · 發表于 2019-7-17 20:59

#include "sys.h"
#include "usart.h"
#include "delay.h"
#include "led.h"
#include "beep.h"
#include "key.h"
#include "exti.h"
#include "wdg.h"
#include "timer.h"
#include "tpad.h"
#include "oled.h"
#include "lcd.h"
#include "usmart.h"
#include "rtc.h"
#include "wkup.h"
#include "adc.h"
#include "dac.h"
#include "dma.h"
#include "24cxx.h"
#include "flash.h"
#include "rs485.h"
int main(void)
{
u8 key;
u8 i=0,t=0;
u8 cnt=0;
u8 rs485buf[5];
Stm32_Clock_Init(9); //系統時鐘設置
uart_init(72,9600); //串口初始化為9600
delay_init(72); //延時初始化
LED_Init(); //初始化與LED連接的硬件接口
LCD_Init(); //初始化LCD
usmart_dev.init(72); //初始化USMART
KEY_Init(); //按鍵初始化
RS485_Init(36,9600); //初始化RS485
POINT_COLOR=RED;//設置字體為紅色
LCD_ShowString(60,50,200,16,16,"WarShip STM32");
LCD_ShowString(60,70,200,16,16,"RS485 TEST");
LCD_ShowString(60,90,200,16,16,"ATOM@ALIENTEK");
LCD_ShowString(60,110,200,16,16,"2012/9/9");
LCD_ShowString(60,130,200,16,16,"KEY0:Send"); //顯示提示信息
POINT_COLOR=BLUE;//設置字體為藍色
LCD_ShowString(60,150,200,16,16,"Count:"); //顯示當前計數值
LCD_ShowString(60,170,200,16,16,"Send Data:"); //提示發送的數據
LCD_ShowString(60,210,200,16,16,"Receive Data:"); //提示接收到的數據
while(1)
{
key=KEY_Scan(0);
if(key==KEY_RIGHT)//KEY0按下,發送一次數據
{
for(i=0;i<5;i++)
{
rs485buf[i]=cnt+i;//填充發送緩沖區
LCD_ShowxNum(60+i*32,190,rs485buf[i],3,16,0X80); //顯示數據
}
RS485_Send_Data(rs485buf,5);//發送5個字節
}
RS485_Receive_Data(rs485buf,&key);
if(key)//接收到有數據
{
if(key>5)key=5;//最大是5個數據.
for(i=0;i<key;i++)LCD_ShowxNum(60+i*32,230,rs485buf[i],3,16,0X80); //顯示數據
}
t++;
delay_ms(10);
if(t==20)
{
LED0=!LED0;//提示系統正在運行
t=0;
cnt++;
LCD_ShowxNum(60+48,150,cnt,3,16,0X80); //顯示數據
}
}
}

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基于485的stm32雙機通信程序