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Message: <blockquote data-quote="Little DJ" data-source="post: 10910562" data-attributes="member: 320663">LED Blink Circuit with 16F877A MicrocontrollerAfter creating the project in MikroC PRO for PIC software, as the next step we could write our first programme to blink LED's using 16F877A Microcontroller.  We could write our programme using ANSI C language. MikroC PRO provides full featured ANSI C compiler for PIC devices from Microchip®. TRISB - TRISB is a 8 bit register which use to assign the PORT B of the microcontroller as input or output.                           If TRISB=0  PORT B is assigned as output.                 If TRISB=1   PORT B is assigned as output.This can be also done as follows              TRISB= b'00000000;  //In Binary                 TRISB= 0x00; // In Hexadecimal Same procedure can be done for other ports (PORT A, PORT C, PORT D, PORT E)as well.PORTB - Assigning values for PORT B register (8 bit) we could get inputs or give outputs from the Microcontroller                      If we need to power up pin 0 and pin 2 of the PORT B it could do as follow.           PORTB= b'00000101;                       or               PORTB.F0=1;               PORTB.F2=1;Delay_ms(1000)- This is the delay function which provides by MikroC to make delays according to the user requirement. Changing the  value inside the brackets we could make the delay in  milliseconds.Code:[code]/************************************************\*                      www.electronicworkspace.com                      **                         Electronics for Everyone                           **                           Date: 01/09/2011                                  **                        LED Blink with 16F877A                              *\************************************************/void main() {TRISB=0;PORTB=0;TRISD=0;PORTD=0;  while(1){    PORTB.RB0=1;    Delay_ms(750);    PORTB.RB0=0;        PORTB.RB1=1;    Delay_ms(750);    PORTB.RB1=0;        PORTB.RB2=1;    Delay_ms(750);    PORTB.RB2=0;        PORTB.RB3=1;    Delay_ms(750);    PORTB.RB3=0;        PORTB.RB4=1;    Delay_ms(750);    PORTB.RB4=0;        PORTB.RB5=1;    Delay_ms(750);    PORTB.RB5=0;        PORTB.RB6=1;    Delay_ms(750);    PORTB.RB6=0;        PORTB.RB7=1;    Delay_ms(750);    PORTB.RB7=0;    PORTD.RD0=1;    Delay_ms(750);    PORTD.RD0=0;        PORTD.RD1=1;    Delay_ms(750);    PORTD.RD1=0;  }}[/code]How to compile the code:Go to Build ----> Click Build (Ctrl + F9)<img src="http://4.bp.blogspot.com/-GAEgGZ_LRDw/Tl-BxUrX60I/AAAAAAAAAIY/W_gcomVZgLs/s1600/16F877A+LED+Blink.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" />This programme can be simulate using PROTEUS software (ISIS Professional)<img src="http://1.bp.blogspot.com/-rKcxYrxA3Ww/Tl-DTji1kiI/AAAAAAAAAIc/5nqBdo-flXQ/s1600/16F877A+LED+Blink+01.JPG" alt="" class="fr-fic fr-dii fr-draggable " style="" />Created HEX file from the MikroC can be imported to the ISIS Professional software and test.[YOUTUBE]I-pTvdMkzW0[/YOUTUBE]Download MikroC code & PROTEUS Design: <a href="http://www.fileserve.com/file/xP44Pmq/16F877A_LED_Blink.rar" target="_blank">Click  Here</a>More info: <a href="http://www.electronicworkspace.com/2011/09/led-blink-circuit-with-16f877a.html" target="_blank">Click Here</a></blockquote>

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