ahmedragia21

Hi, im using PIC16F877A , and im using the compiler MikroC example Blinking LEDS in portC and it doesnt blink the leds ...
I use a universal programmer , here's a pic of the configurations .. .
all the connections are correct MCLR tied to VCC, VDD to 5V,VSS to GND , i use 11MhZ osc

Attached Images

confg.PNG (74.6 KB, 23 views)

mister_e

Could you attach your code and .HEX files in a .ZIP file format here?

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Steve
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ahmedragia21

hex and code

Attached Files

LED_Blinking.zip (747 Bytes, 8 views)

mister_e

Your .HEX file work for me, nothing really bad in your code. Double check your hardware and if your universal programmer is set to program the configuration fuses.

__________________
Steve
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ahmedragia21

thanks for the check , but i dont know how my universal programmer works with PICs ... i posted a pic of the configuration , would you check it ?

mister_e

I don't know this programmer and they seems to use a weird syntax. What happen if you click on the ReadCFG button?

Doesn't seems he read/updae the config fuses automatically when you load the .HEX in your software... well from what i see on your picture...

__________________
Steve
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arhi

works like a charm .. I tested it on mikroe easypic board and also programmed using: http://www.oshonsoft.com/picprog.html (simple 13V parallel port programmer )

ahmedragia21

i dont know really where's the problem , im really so frustrated now

blueroomelectronics

Your problem appears to be the way your programmer is setup.

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Bill
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eng1

As pointed out by mister_e, it seems that the software is not configured to handle the config settings properly. Try reading the PIC as suggested; what value do you get?
The config word saved within the hex file is 0x3F7A (read with IC-Prog)