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Thanks.
Your points, although valid, still couldn't get me a correct value. Had to poke around a little to figure out where it was getting the false value from. Had to implement another valid flag bi ...

I've been working on this reciprocal frequency counter project on PIC16F877A with 16MHz intended to be a 0-400 Hz counter. CCP1 is utilized to capture RE of incoming signal and ticks are counted. It i ...

Ok. I changed the name of function and variable. But it still gives error "expecting a numeric expression here" at the last line i.e. line containing '}'
abc(){
int key,in ...

I want to call the function input() and assign the value it returns to input variable. Is that ok?

#include <16F877A.h>
#device ADC = 8 // 8-bit conversion
#use delay(clock = 16000000)
#use rs232(UART1) // Select hardware UART

#include <lcd.c>
#include <kbd. ...

Also please tell me can I call "wait_kbd_getc(void)" routine from some other routine? (other than main())?

Once you've edited the driver file, save it. But don't add it to the project while compiling. Same thing happened to me. Just remove it from the source files' list.

I know this shouldn't be happening but now I have to press the keys for quite some time, otherwise they aren't detected. And what about sending control commands to lcd. How can I do that?

Sorry to bother you again but how can I make the keypad wait for the input once called? instead of having to call it a million times. Also can I send commands to lcd like hiding the cursor (0x0C) etc?

That doesn't bother me. I'm happier still... Thank you for your cooperation.

That solved my problem. Thanks a lot. About the analog pins; I think I'll go for the three pins but I was wondering is it possible to setup the adc ports and adc channel alternatively for the two inpu ...

I know that these files are to be included in the main program. Here is the complete code:

#include <16F877A.h>
#device ADC = 8 // 8-bit conversion
#use delay(clock = 16000000)
#u ...

I am using PIC16F877A to interface 2x16 LCD and 4x3 keypad. Problem might be silly but whenever I try to compile the standard drivers for these, following errors occur:

*** Error 128 "KBD.C&q ...