Software yang digunakan dalam ujicoba kali ini ialah MIKROC 8051 ver 2.2. pemrograman mikrokontroler AT89S51 dengan bahasa C memang lebih mudah jika dibandingkan dengan menggunakan Assembler. apalagi jika kita ingin membuat perangkat yang rumit akan sangat terasa perbedaannya.
Awal pembuatan program bisa di lihat pada video berikut :
Resolusi lebih tinggi klik disini
Berikut merupakan daftar uji coba tersebut:
1. Percobaan LED
Skema Uji Coba LED
void main() {
P0=0x00; // LED SEMUA ON
}
Program LED 2 menyalakan sebagian Led dengan bilangan heksa
void main() {
P0=0xF0; // LED P0-P3 ON
}
Program LED 3 menyalakan 1 Led dengan bilangan biner
void main() {
P0=0b11111110; // LED 1 ON
}
Program LED 4 menyalakan 2 Led dengan bilangan biner
void main() {
P0=0b01111110; // LED 1 dan 8 ON
}
Program LED 5 menyalakan Led per bit
void main() {
P0_0_bit=0; // LED 1
ON
P0_7_bit=0; // LED 8 ON
}
Program LED 6 Blinking led dengan delay
void main() {
while(1){
P0=0b00000000; //led ON
delay_ms(1000); //tunda 1 detik
P0=0b11111111; //led OFF
delay_ms(1000); //tunda 1 detik
}
}
2. Percobaan Switch
Skema Uji Coba Switch
Program Switch 1
void main() {
while(1){
if(P1_0_bit==0){P0=0x00;} //jika tombol 1 ditekan LED ON
}
}
Program Switch 2
void main() {
while(1){
if(P1_0_bit==0){P0=0x00;} //jika tombol 1 ditekan LED ON
if(P1_1_bit==0){P0=0xff;} //jika tombol 2 ditekan LED OFF
}
}
Program Switch 3
void main() {
while(1){
if(P1_0_bit==0){P0_0_bit=0;} //jika tombol 1 ditekan LED 1 ON
if(P1_1_bit==0){P0_1_bit=0;} //jika tombol 2 ditekan LED 2 ON
if(P1_2_bit==0){P0=0xff;} //jika tombol 3 ditekan LED OFF
}
}
Program Switch 4
void main() {
while(1){
if(P1_0_bit==0){P0=0x00;} //jika tombol 1 ditekan led on dilepas led
off
else{P0=0xff;}
}
}
3. Percobaan LCD
Skema Uji Coba LCD
Program LCD 1
// lcd pinout
settings
sbit LCD_RS at
P2_0_bit;
sbit LCD_EN at
P2_1_bit;
sbit LCD_D7 at
P2_7_bit;
sbit LCD_D6 at
P2_6_bit;
sbit LCD_D5 at
P2_5_bit;
sbit LCD_D4 at
P2_4_bit;
void main() {
lcd_init();
Lcd_Out(1, 3,
"tutorial-"); //tulis
di baris ke 1 kolom 3
lcd_Out(2,1,
"mikrokontroler"); //tulis di
baris ke 2 kolom 1
}
Program LCD 2
// lcd pinout
settings
sbit LCD_RS at
P2_0_bit;
sbit LCD_EN at
P2_1_bit;
sbit LCD_D7 at
P2_7_bit;
sbit LCD_D6 at
P2_6_bit;
sbit LCD_D5 at
P2_5_bit;
sbit LCD_D4 at
P2_4_bit;
void main() {
lcd_init();
Lcd_Out(1, 3,
"Uji coba"); //tulis di
baris ke 1 kolom 3
Lcd_Cmd(_LCD_CURSOR_OFF); //matikan kursor
while(1)
{
Lcd_Cmd(_LCD_SHIFT_RIGHT); //geser tulisan ke kanan
delay_ms(1000); //tunda 1 detik
} //ulangi
}
Program LCD 3
// lcd pinout
settings
sbit LCD_RS at
P2_0_bit;
sbit LCD_EN at
P2_1_bit;
sbit LCD_D7 at
P2_7_bit;
sbit LCD_D6 at
P2_6_bit;
sbit LCD_D5 at
P2_5_bit;
sbit LCD_D4 at
P2_4_bit;
void main() {
lcd_init();
Lcd_Out(1, 3,
"Uji coba"); //tulis di
baris ke 1 kolom 3
Lcd_Cmd(_LCD_CURSOR_OFF); //matikan kursor
}
Command LCD lainnya :
Skema Uji Coba RTC
Program Jam Digital
char seconds,
minutes, hours, date, month; // Global
date/time variables
unsigned int year;
unsigned int
RTCModuleAddress, YearOffset; // RTC chip description variables
#define DS1307 // Uncomment this line if you use
DS1307 RTC chip (mE RTC2 extra board)
// Software I2C
connections
sbit Soft_I2C_Scl at
P1_0_bit;
sbit Soft_I2C_Sda at
P1_1_bit;
// End Software I2C
connections
// LCD module
connections
sbit LCD_RS at
P2_0_bit;
sbit LCD_EN at
P2_1_bit;
sbit LCD_D4 at
P2_4_bit;
sbit LCD_D5 at
P2_5_bit;
sbit LCD_D6 at
P2_6_bit;
sbit LCD_D7 at
P2_7_bit;
// End LCD module
connections
//------------------
Performs project-wide init
void Init_Main() {
#ifdef DS1307
RTCModuleAddress = 0xD0;
YearOffset = 2000;
#endif
Soft_I2C_Init(); // Initialize Soft I2C communication
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,':');
}
//---------------------
Reads time and date information from DS1307 RTC
void
Read_Time_DS1307() {
char byte_read;
Soft_I2C_Start(); // Issue start signal
Soft_I2C_Write(RTCModuleAddress); // RTC module address + write (R#/W = 0)
Soft_I2C_Write(0); // Start from seconds byte
Soft_I2C_Start(); // Issue repeated start
signal
Soft_I2C_Write(RTCModuleAddress+1); // RTC
module address + read (R#/W = 1)
byte_read = Soft_I2C_Read(1); // Read seconds
byte
seconds = ((byte_read & 0x70) >>
4)*10 + (byte_read & 0x0F); // Transform seconds
byte_read = Soft_I2C_Read(1); // Read minutes
byte
minutes = ((byte_read & 0x70) >>
4)*10 + (byte_read & 0x0F); // Transform minutes
byte_read = Soft_I2C_Read(1); // Read hours
byte
if (byte_read.B6) { //
12h format
hours = ((byte_read & 0x10) >>
4)*10 + (byte_read & 0x0F); // Transform hours
if (byte_read.B5) // PM
flag
hours = hours + 12;
}
else
hours = ((byte_read & 0x30) >>
4)*10 + (byte_read & 0x0F); // Transform hours
byte_read = Soft_I2C_Read(1); // Read weekday
byte
byte_read = Soft_I2C_Read(1); // Read date
byte
date = ((byte_read & 0x30) >> 4)*10
+ (byte_read & 0x0F); // Transform
date
byte_read = Soft_I2C_Read(1); // Read month
byte
month = ((byte_read & 0x10) >>
4)*10 + (byte_read & 0x0F); //
Transform month
byte_read = Soft_I2C_Read(1); // Read year
byte
year = YearOffset + ((byte_read & 0xF0)
>> 4)*10 + (byte_read & 0x0F); // Transform year
Soft_I2C_Stop(); // Issue stop signal
}
//---------------------
Reads time and date information from RTC
void Read_Time() {
#ifdef DS1307
Read_Time_DS1307();
#endif
}
//--------------------
Output values to LCD
void Display_Time()
{
Lcd_Chr(1, 6, (date / 10) + 48); // Print tens digit of date variable
Lcd_Chr(1, 7, (date % 10) + 48);
// Print oness digit of date variable
Lcd_Chr(1, 9, (month / 10) + 48);
Lcd_Chr(1,10, (month % 10) + 48);
Lcd_Chr(1,12, ((year / 1000) % 10) +
48); // Print year
Lcd_Chr(1,13, ((year / 100) % 10) + 48);
Lcd_Chr(1,14, ((year / 10) % 10) + 48);
Lcd_Chr(1,15, (year % 10) + 48);
Lcd_Chr(2, 6, (hours / 10) + 48);
Lcd_Chr(2, 7, (hours % 10) + 48);
Lcd_Chr(2, 9, (minutes / 10) + 48);
Lcd_Chr(2,10, (minutes % 10) + 48);
Lcd_Chr(2,12, (seconds / 10) + 48);
Lcd_Chr(2,13, (seconds % 10) + 48);
}
//-----------------
Main procedure
void main() {
Init_Main(); // Perform initialization
while (1) { // Endless loop
Read_Time(); // Read time from RTC
Display_Time(); // Prepare and display on LCD
Delay_ms(950); // Wait 1 second
}
}
5. Percobaan SOUND (mikrokontroler mengeluarkan nada)
Skema Uji Coba Sound
sbit Sound_Play_Pin
at P2_0_bit;
/*
220.00 Hz A (La)
246.94 Hz B (Si)
261.63 Hz C (Do)
293.66 Hz D (Re)
329.63 Hz E (Mi)
349.23 Hz F (Fa)
392.00 Hz G (Sol)
*/
void main() {
Sound_Init();
while(1){
Sound_Play(262, 250); // Frequency = 262Hz, duration = 250ms DO
Sound_Play(294, 250); // Frequency = 294Hz, duration = 250ms RE
Sound_Play(330, 250); // Frequency = 330Hz, duration = 250ms MI
Sound_Play(349, 250); // Frequency = 349Hz, duration = 250ms FA
Sound_Play(392, 250); // Frequency = 392Hz, duration = 250ms SO
Sound_Play(220, 250); // Frequency = 220Hz, duration = 250ms LA
Sound_Play(247, 250); // Frequency = 247Hz, duration = 250ms SI
}
}
semua file uji coba tersebut dapat di download disini
