前后台系统的应用：改版的多功能记录仪
/**
* 51单片机项目：多功能记录仪
* 文件名：main.h
*/
#ifndef _MAIN_H
#define _MAIN_H
typedef struct msg {
uint8_t hour; //时
uint8_t minute; //分
uint8_t second; //秒
uint8_t tempIntPart; //温度
uint8_t humidity; //湿度
uint8_t resTime; //物品停留时间
} msg_t;
typedef void (code * pFn)(); //定义函数指针类型，该指针指向code存储区
void sys_init();
void samplingDS1302();
void samplingPCF8591();
void samplingDS18B20();
void writeAndReadEEPROM();
void keyAction(uint8_t keyCode);
//void printTime();
//void printTemAndHum();
//void printResT();
void dispMode0();
void dispMode1();
void dispMode2();
void LED_init();
void LEDchangeMode();
void LED3toggle();
#endif
/**
* 项目名称：多功能记录仪
* 功能概述：能测量实时时间、温度、湿度、物品停留时间；
* 能从EEPROM存/取测量到的数据；
* 能通过串口和上位机通信。
* 工作模式0：自动传输模式（上电默认）
* 工作模式1：自动记录模式
* 用户操作：
* （1）按键S5切换工作模式
* （2）按键S4切换显示模式
* （3）当记录仪工作在两种模式下时，只有当用户发送字符"AAASSS"给单片机，
* 单片机才把数据传送给上位机显示。
*
* 文件名：main.c
*/
#include <stc15f2k60s2.h>
#include <string.h>
#include "stdint.h"
#include "timer.h"
#include "digitalTube.h"
#include "independentKey.h"
#include "Serial.h"
#include "I2C.h"
#include "EEPROM.h"
#include "PCF8591.h"
#include "OneWire.h"
#include "DS18B20.h"
#include "DS1302.h"
#include "main.h"
//sbit LED_1 = P0^0;
//sbit LED_2 = P0^1;
//sbit LED_3 = P0^2;
volatile bit flag200ms = 0, flag300ms = 0, flag1s = 0; //周期性任务的标志
pFn code disptr[3] = { dispMode0, dispMode1, dispMode2 }; //显示模式
uint8_t disptrIndex = 0;
bit workingMode = 0; //为0表示自动传输模式；为1表示自动记录模式
bit isShading = 0; //是否被遮光的标志
msg_t message;
uint8_t SerialBuf[7], SerialBufIndex = 0; //串口数据缓存
uint8_t leds_state = ~0x01; //上电默认为模式1
void main() {
sys_init();
while (1) {
keyDriver();
if (flag200ms) { //200ms采集一次实时时间
flag200ms = 0;
samplingDS1302();
}
if (flag300ms) { //300ms采集一次模拟量
flag300ms = 0;
samplingPCF8591();
}
if (flag1s) { //1s采集一次温度
flag1s = 0;
samplingDS18B20();
if (workingMode) { //如果工作于自动记录模式
writeAndReadEEPROM();
}
}
}
}
void sys_init() {
tmr0_init(2);
DS18B20_start();
DS1302init();
Serial_init(1200); //baudrate=1200
LED_init();
}
void samplingDS1302() { //200ms
sTime_t time;
static uint8_t preSec;
DS1302_getRealTime(&time);
if (time.sec != preSec) { //秒有变化
message.hour = (time.hour >> 4) * 10 + (time.hour & 0x0F); //将BCD码解码
message.minute = (time.minute >> 4) * 10 + (time.minute & 0x0F);
message.second = (time.sec >> 4) * 10 + (time.sec & 0x0F);
if (disptrIndex == 0) {
dispMode0();
}
preSec = time.sec;
}
}
void samplingPCF8591() { //300ms
uint8_t chn1Sample, chn3Sample;
static uint8_t cnt300ms = 0;
chn1Sample = PCF8591_getADCvalue(1); //通道1的采样值
chn3Sample = PCF8591_getADCvalue(3); //通道3的采样值
message.humidity = (uint8_t)((uint16_t)chn3Sample * 99 / 255);
if (chn1Sample < 128) { //如果遮光
cnt300ms++;
isShading = 1;
if ((cnt300ms * 3 / 10) != ((cnt300ms - 1) * 3 / 10)) { //如果秒数有变化则闪烁
LED3toggle(); //在这里闪烁更及时一些
}
} else { //没有遮光
if (isShading) { //如果之前遮光（上升沿）
message.resTime = cnt300ms * 3 / 10;
cnt300ms = 0; //本次遮挡完毕，重置计时次数
}
isShading = 0;
}
if (disptrIndex == 1) { //如果显示模式是1，则更新湿度显示
dspBuf[5] = message.humidity / 10;
dspBuf[6] = message.humidity % 10;
} else if (disptrIndex == 2) { //如果显示模式是2，则更新物品停留时间显示
dspBuf[6] = message.resTime / 10;
dspBuf[7] = message.resTime % 10;
}
}
void samplingDS18B20() { //1s
int16_t temperature;
uint8_t tempIntPart, tempDecPart;
DS18B20_getTemperature(&temperature);
DS18B20_start(); //!!!重新启动
tempIntPart = getIntPart(temperature);
tempDecPart = getDecPart(temperature);
if (tempDecPart >= 5) //四舍五入
tempIntPart++;
message.tempIntPart = tempIntPart;
if (disptrIndex == 1) { //如果是显示模式1，则更新温度显示
dspBuf[0] = message.tempIntPart / 10;
dspBuf[1] = message.tempIntPart % 10;
}
/*
if (isShading) { //如果被遮光，则LED3一秒钟闪烁一次
LED3toggle();
}
*/
}
void writeAndReadEEPROM() {
static uint8_t EEPROMwritingIndex = 0, EEPROMreadingIndex = 0;
EEPROMwrite((uint8_t *)&message, EEPROMwritingIndex, sizeof (msg_t));
EEPROMwritingIndex += sizeof (msg_t); //这个EEPROM一共是256字节的存储空间
EEPROMread((uint8_t *)&message, EEPROMreadingIndex, sizeof (msg_t)); //写入后再读出
EEPROMreadingIndex += sizeof (msg_t);
}
void keyAction(uint8_t keyCode) {
switch (keyCode) {
case 4:
if (disptrIndex == 2) {
disptrIndex = 0;
} else {
disptrIndex++;
}
disptr[disptrIndex]();
break;
case 5:
workingMode = ~workingMode;
LEDchangeMode();
break;
}
}
void Serial_receive() {
SerialBuf[SerialBufIndex] = SBUF;
if (SerialBufIndex == 5) {
if (strncmp(SerialBuf, "AAASSS", 6) == 0) {
//%bu用于输出uint8_t(byte unsigned)
myprintf("{%bu-%bu-%bu}",
message.hour, message.minute, message.second);
myprintf("{%buC--%buH}",
message.tempIntPart, message.humidity);
if (workingMode == 0) { //如果工作于模式0
if (isShading) //如果现在被遮光了
myprintf("{--1--}\n");
else
myprintf("{--0--}\n");
} else { //否则打印前一次的停留时间
myprintf("{--%bus}\n", message.resTime);
}
}
SerialBufIndex = 0;
} else {
SerialBufIndex++;
}
}
void Serial_transmit() { }
void dispMode0() {
static bit flag = 0;
dspBuf[0] = message.hour / 10; //已经解码了
dspBuf[1] = message.hour % 10;
dspBuf[2] = (flag ? 11 : 10);
dspBuf[3] = message.minute / 10;
dspBuf[4] = message.minute % 10;
dspBuf[5] = (flag ? 11 : 10);
dspBuf[6] = message.second / 10;
dspBuf[7] = message.second % 10;
flag = ~flag;
}
void dispMode1() {
dspBuf[0] = message.tempIntPart / 10;
dspBuf[1] = message.tempIntPart % 10;
dspBuf[2] = 12; //C
dspBuf[3] = 11; //-
dspBuf[4] = 11; //-
dspBuf[5] = message.humidity / 10;
dspBuf[6] = message.humidity % 10;
dspBuf[7] = 13; //H
}
void dispMode2() {
dspBuf[0] = 11;
dspBuf[1] = 10;
dspBuf[2] = 10;
dspBuf[3] = 0;
dspBuf[4] = 0;
dspBuf[5] = 0;
dspBuf[6] = message.resTime / 10;
dspBuf[7] = message.resTime % 10;
}
void LED_init() {
P2 = (P2 & 0x1F) | 0x80;
P0 = leds_state;
P2 &= 0x1F;
}
void LEDchangeMode() {
leds_state ^= 0x03; //将最低两位反转
P2 = (P2 & 0x1F) | 0x80;
P0 = leds_state;
P2 &= 0x1F;
}
void LED3toggle() {
leds_state ^= 0x04; //将倒数第三位反转
P2 = (P2 & 0x1F) | 0x80;
P0 = leds_state;
P2 &= 0x1F;
}
void tmr0ISR() interrupt 1 {
static uint16_t cnt = 0;
TL0 = tmr0LowByte;
TH0 = tmr0HighByte;
cnt++;
digitalTubeScan();
if (cnt & 0x01)
keyScan();
if (cnt % 100 == 0) {
flag200ms = 1;
}
if (cnt % 150 == 0) {
flag300ms = 1;
}
if (cnt == 500) {
cnt = 0;
flag1s = 1;
}
}