Making a timer using Pic16F887. How?

[khantazmah]

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up up up ko ani para maka learn sad ko

[moklo]

Bro mao ni ako code sa TIMER, 1 second ang interval ani.. via interrupt.. and im using PIC16F877A for the MCU... and MikroC for the coding!


void interrupt() {

TMR0 = 1;

//timer
timeCnt++;
if(timeCnt==30) { timeCnt=0;
seconds++; }

INTCON = 0xA0; //set T0IE, cler T0IF
}

void main() {

ADCON1=0x06;
TRISA=0x00;
TRISB=0x00;
TRISD=0x00;
TRISE=0x00; PORTE=0x00;

OPTION_REG = 0b10000111; // Assign prescaler to TMR0 and set to 1/256
INTCON = 0x00; // disable (GIE + T0IE)

TMR0 = 1;

//INTCON = 0xA0; // to enable the timer interrupt
//INTCON = 0x00; // to disable the timer interrupt

while(1) {

// put your codes here whatever you want to apply
}

}


// post here kung unsa gusto nimo mahitabo sa imo circuit.. then we'll see what we can do... the codes above are showing how to enable the interrupt...

been using this code to my electronic scoreboard..
Wireless Electronic Scoreboard - YouTube

Pwede pure assembly codes lng.. aron maka apil pud ko..hehehe

[homermike]

Mas maau practice ka C bro.. pra dali ra kaau.. ni-agi nko anang assembly pro hassle kaau.. taas kaau codes.. kana nga code sample ako ghatag if sa assembly na taas kaau...

nka kita ko sa imo post rgding PC timer with 1 coinslot and ur using 16F84A na PIC, ok kaau to bro.. i suggest u try migrate to C language kay dghan ka ug mahimo na application kay kahibaw man gyud ka...

nndot sad to butangan ug bill acceptor bro.. same ani ako gbuhat na loading machine:
Electronic Load Vending Machine - YouTube

see other vidz lng nya...

[stealthghost]

Mas maau practice ka C bro.. pra dali ra kaau.. ni-agi nko anang assembly pro hassle kaau.. taas kaau codes.. kana nga code sample ako ghatag if sa assembly na taas kaau...

nka kita ko sa imo post rgding PC timer with 1 coinslot and ur using 16F84A na PIC, ok kaau to bro.. i suggest u try migrate to C language kay dghan ka ug mahimo na application kay kahibaw man gyud ka...

nndot sad to butangan ug bill acceptor bro.. same ani ako gbuhat na loading machine:
Electronic Load Vending Machine - YouTube

see other vidz lng nya...

kung gamay lang nga project, mas nindut ang assembly, para nako..
kay masabatan jud nimo ang imung IC og datasheet..

pero nindut gihapon ang C kay mas dali mag code..

[homermike]

yes correct ka bro... but in C language, still needed man gyapon na sabton gyud ang datasheets... it is a must...
ang nka nndot lng karn sa C language or mga C compilers kay naana dghan builtin libraries nga dli naka mag lisod ug hard code like integrating sa imo project some protocols: Serial Communication, i2c, SPI, PWM, ADC etc... kay all modules now are within that protocols/interface so dili nagyud lisod mag create sa code pra sa imo MCU...

here are some of my projects done already... if have u heard sa PREPAID METER, we'r also participating the development...
TXT MY CAR or SMS MY CAR - YouTube
Electronic Load Vending Machine - YouTube
Wireless Electronic Scoreboard - YouTube
All Network LOAD Vending System success-load 1 - YouTube
Smart and TnT vending machine video.MPG - YouTube

https://www.facebook.com/TeksourcePhil

[red_horse]

Very nice videos sir homermike.
Kudos to you coz you are making very nice actual commercial projects.

On topic.
Gamit ug C TS for faster development sa imo project as what homermike suggested.
And you can also use assembly sa microC if you need your code to be efficient, as what stealthghost suggested.