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I want to use in 40uSec
And it should be able reuse the delay through out the program.
If I use the timer, can I recall the routine and reuse it?

Can you explain how you get 1 mSec = 625 timer1 ...

I need help to created custom delay subroutine

I use a 20Mhz Crystal, PIC16F877A

void main( void )
{
long i,j;
mcu_init(); /* Init of system clock and processor mod ...

How do I display the ds1307 (hh:mm) into the 7-segment using max7219?

What is the best way to do it? Theory?

Thanks..

I finally got it work. Some how the Radioshack IRLED will not work with the Panasonic Detector. I replace it with different IR LED and it just work perfect.

Anyway, thanks for all inpu ...

I have the receiver send the received data to hyperterminal.
Here is what I got from the Hyperteminal:

http://www.ceebtsheej.org/pic/ir_screen.jpg

Here is my latest transmit code:

#include & ...

Infrared data conversion, does it need to have a MAX 232 between the receiver and the PC port?

When I re-adjust the PR2 to 130, I measure it with the O'scope, I have 38.4Khz.

The data display in the hyperterminal still the same as above. It does not solve the problem.

I change from print ...

I am working on a project using IR communication, I have the transmitter
and the receiver talking, but the data are junk per hypertminal.

Per the code below, it should display (0123456789), but ...

Can someone look at it?
Here is my code

#include <18F452.h>
#fuses XT,NOWDT,NOPROTECT,NOLVP
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_C6, rcv=PIN_C7)

...

I use a PIC18F452 with a 4Mhz crystal. I want to generate a 38Khz-40Khz PWM with 50% duty cycle.

Anyone has a sample code that I can use?

Thanks..

I have found this post in the forum and I try it, it does not work.
I just does not turn on the LED at all. I use the LDQ-N512RI with
the Max7219. I just need to drive the first 2 digit according to ...

I have problem with the ICD-U40 stand alone software. The Fuses setting under ICD Advanced window, under Configuration tab(see below) are not
right. They suppose to be: XT, WDT, PUT, NOLVP,NOBROWNOUT ...

I posted this in the wrong forum, So I import it to here.
I still got no answer to these questions.

Please help me out.

I just bought 3 new ICD_U40 to use as programmer in production. I need ...

I always have this warning after I browse the hex file. Is this the root cause for that? I use firmware ver 1.33

How can I solve this problem?

See below:

http://www.ceebtsheej.org/pic/error.g ...

I have tried with 2 different PIC18 and it does not work.
(PIC18F6620 and PIC18F458). I just got a new ICD-U40 and it does the samething.

Here is the error, this error is from pic18f6620 processo ...