ATmega16读取RTC和ADC显示在LCD1602，同时串口输出，并写入EEPROM Proteus仿真程序

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ID:732506发表于 2020-4-30 02:42|只看该作者|只看大图回帖奖励

介绍mikroPascal for AVR 写的ATmega16读取RTC和ADC显示在LCD1602，同时串口输出，并写入EEPROM的程序。附带仿真文件。mikro编译器分为c，basic，pascal三种，除了语法有所区别外，使用和功能基本一样。有8051，AVR，PIC，ARM等版本，界面和语法都一样。学会一种芯片花很少时间就可以转到另一种芯片。自带常用库，帮助文件中例子很多，基本不需要其他文档就可以开始学习了。
仿真原理图如下（proteus仿真工程文件可到本帖附件中下载）

单片机源程序如下:

program RTC_Read;
var seconds, minutes, hours, day, month, year : byte; // Global date/time variables
var adc_rd : word;
// Software I2C connections
var Soft_I2C_Scl_Output : sbit at PORTC0_bit;
Soft_I2C_Sda_Output : sbit at PORTC1_bit;
Soft_I2C_Scl_Input : sbit at PINC0_bit;
Soft_I2C_Sda_Input : sbit at PINC1_bit;
Soft_I2C_Scl_Direction : sbit at DDC0_bit;
Soft_I2C_Sda_Direction : sbit at DDC1_bit;
// End Software I2C connections
// LCD pinout definition
var LCD_RS : sbit at PORTD2_bit;
var LCD_EN : sbit at PORTD3_bit;
LCD_D4 : sbit at PORTD4_bit;
LCD_D5 : sbit at PORTD5_bit;
LCD_D6 : sbit at PORTD6_bit;
LCD_D7 : sbit at PORTD7_bit;
var LCD_RS_Direction : sbit at DDD2_bit;
LCD_EN_Direction : sbit at DDD3_bit;
LCD_D4_Direction : sbit at DDD4_bit;
LCD_D5_Direction : sbit at DDD5_bit;
LCD_D6_Direction : sbit at DDD6_bit;
LCD_D7_Direction : sbit at DDD7_bit;
// end LCD pinout definitions
//--------------------- Reads time and date information from RTC (PCF8583)
procedure Read_Time();
begin
Soft_I2C_Start(); // Issue start signal
Soft_I2C_Write(0xA0); // Address PCF8583, see PCF8583 datasheet
Soft_I2C_Write(2); // Start from address 2
Soft_I2C_Start(); // Issue repeated start signal
Soft_I2C_Write(0xA1); // Address PCF8583 for reading R/W=1
seconds := Soft_I2C_Read(1); // Read seconds byte
minutes := Soft_I2C_Read(1); // Read minutes byte
hours := Soft_I2C_Read(1); // Read hours byte
day := Soft_I2C_Read(1); // Read year/day byte
month := Soft_I2C_Read(0); // Read weekday/month byte
Soft_I2C_Stop(); // Issue stop signal
end;
//-------------------- Formats date and time
procedure Transform_Time() ;
begin
seconds := ((seconds and 0xF0) shr 4)*10 + (seconds and 0x0F); // Transform seconds
minutes := ((minutes and 0xF0) shr 4)*10 + (minutes and 0x0F); // Transform months
hours := ((hours and 0xF0) shr 4)*10 + (hours and 0x0F); // Transform hours
year := (day and 0xC0) shr 6; // Transform year
day := ((day and 0x30) shr 4)*10 + (day and 0x0F); // Transform day
month := ((month and 0x10) shr 4)*10 + (month and 0x0F); // Transform month
end;
//-------------------- Output values to LCD
procedure Display_Time();
begin
Lcd_Chr(1, 9, (day / 10) + 48); // Print tens digit of day variable
Lcd_Chr(1, 10, (day mod 10) + 48); // Print oness digit of day variable
Lcd_Chr(1, 6, (month / 10) + 48);
Lcd_Chr(1,7, (month mod 10) + 48);
//Lcd_Chr(1,15, (year mod 10) + 48); // Print year vaiable
UART1_Write_Text('Time: ');
Lcd_Chr(2, 6, (hours / 10) + 48);
Lcd_Chr(2, 7, (hours mod 10) + 48);
UART1_Write(hours/10+48); UART1_Write(hours mod 10 + 48); UART1_Write(':');
Lcd_Chr(2, 9, (minutes / 10) + 48);
Lcd_Chr(2,10, (minutes mod 10) + 48);
UART1_Write(minutes/10+48); UART1_Write(minutes mod 10 + 48); UART1_Write(':');
Lcd_Chr(2,12, (seconds / 10) + 48);
Lcd_Chr(2,13, (seconds mod 10) + 48);
UART1_Write(seconds/10+48); UART1_Write(seconds mod 10 + 48); UART1_Write(' ');
//UART1_Write(13);UART1_Write(10);
Lcd_Chr(1,13,(adc_rd/1000) + 48);
Lcd_Chr(1,14,((adc_rd mod 1000)/100) + 48);
Lcd_Chr(1,15,(adc_rd mod 100)/10 + 48);
Lcd_Chr(1,16,(adc_rd mod 10) + 48);
UART1_Write_Text('Volt: ');
UART1_Write((adc_rd/1000) + 48);
UART1_Write((adc_rd mod 1000)/100 + 48);
UART1_Write((adc_rd mod 100)/10 + 48);
UART1_Write((adc_rd mod 10) + 48);
UART1_Write(13);UART1_Write(10);
end;
//------------------ Performs project-wide init
procedure Init_Main();
begin
UART1_Init(2400); // Initialize UART module at 9600 bps
Delay_ms(100); // Wait for UART module to stabilize
UART1_Write_Text('Start');
UART1_Write(13);UART1_Write(10);
Lcd_Init(); // Initialize LCD
Lcd_Cmd(_LCD_CLEAR); // Clear display
Lcd_Cmd(_LCD_CURSOR_OFF); // Cursor off
//Lcd_Out(1, 1, 'Key :'); // Write message text on LCD
//Lcd_Out(2, 1, 'Times:');
//delay_ms(1000);
//Lcd_Init(); // Initialize LCD
//Lcd_Cmd(_LCD_CLEAR); // Clear LCD display
//Lcd_Cmd(_LCD_CURSOR_OFF); // Turn cursor off
LCD_Out(1,1,'Date:'); // Prepare and output static text on LCD
LCD_Chr(1,8,'-');
//LCD_Chr(1,11,'-');
LCD_Out(2,1,'Time:');
LCD_Chr(2,8,':');
LCD_Chr(2,11,':');
LCD_Out(1,12,'V');
Soft_I2C_Init(); // Initialize Soft I2C communication
end;
//----------------- Main procedure
begin
Init_Main(); // Perform initialization
while TRUE do // Endless loop
begin
Read_Time(); // Read time from RTC(PCF8583)
Transform_Time(); // Format date and time
adc_rd := ADC_Read(0); // get ADC value from 2nd channel
Display_Time(); // Prepare and display on LCD
if (seconds = 0) then
EEPROM_Write(minutes,adc_rd/4); // Write some data at address
delay_ms(1000);
end;
end.