Are you using a USB to RS232 adapter?

Originally Posted by juanbbv

Icprog gave me and advice that there was a error in writing address 0000f. (Could be it the wrong thing that doesn’t let my icd2 work??)

That will be one of your problem.You must program the PIC successfully without any verify failed errors.

For the time being try this programmer to load your hex into 877.

http://www.semis.demon.co.uk/uJDM/uJDMmain.htm

If you still cannot solve the issue, you can try the junebug or a full PICkit2 on my site.
Best wish,

Originally Posted by juanbbv

I´m using RS232 adapter

Do you mean a USB to RS232 adapter?

Guys,

I ve tried to download again the file bl010101.hex with the uJDM programmer and something uncommon happened, i couldn´t download the file into the pic, i dont know why... is something like the bootloader isn´t the correct to the PIC16f877, but i´ve taken it form the file Mplab/ICD2/Bl01010101.hex like all the explanations says.(i tried to write the pic with another program and it worked fine)

Another thing is that my cable to connect the icd2 to the PC (rs232 cable) is 1.5 meter lenght, is it too long? i´ve read that in some cases the length could be a problem...

I am in a big big problem!!!
please help!!

Is it a usb to rs232 adapter? if so thats your problem.

Originally Posted by blueroomelectronics

Do you mean a USB to RS232 adapter?

I´am conecting the pic to a max 232 chip. From it to the db9 cable to the PC in com1
Sorry, maybe i did not explain very well. English is my second language.
Thanks

I've made an ICD clone from his page, but used a 876a, so I'm not sure this will help. To get it working on my computer, I had to enable the FIFO buffers, but set them both to low (1). With them completely disabled, I was having communication errors.

hmmmm

Would you be able to purchase a inchwom+ from Canada?

Its definately worth it, at only 45$, get one. No substitution.
http://www.blueroomelectronics.com/inchwormplus.htm

That's a fix I've heard before, setting the fifo to 1 might work. Make sure you've got a 16F877 as the 16F877A uses different firmware.
The length of the RS232 cable can be long, 2m is common.
If the MAX232 isn't hot it's fine.
Also it should be COM1 or COM2.

So the clones wont work with a USB to RS232 ?? I was kind of hoping for that (but i guess i can make it to work with USB direct see www.stolz.de.be)

Originally Posted by BronzeG3

I've made an ICD clone from his page, but used a 876a, so I'm not sure this will help. To get it working on my computer, I had to enable the FIFO buffers, but set them both to low (1). With them completely disabled, I was having communication errors.

Thanks i´m going to try your solution, maybe it works!

But before this I have to solve the problem of writing the pic 16f877 with the file Bl010101.hex becouse i always have errors independentely of the programmer I use...
I don´t now why... All the sites I´ve readed says that this is the correct file for this pic16f877 and PIC16F876 (there isn´t disponibility for the last here in my country)
The error is always related o address 0000f, is like the file is not compatible with the pic...
help!!!!

Originally Posted by Krumlink

hmmmm

Would you be able to purchase a inchwom+ from Canada?

Its definately worth it, at only 45$, get one. No substitution.
http://www.blueroomelectronics.com/inchwormplus.htm

I would like, but i don´t have much money.In my country uss dollars are expensive, and the shipment is too. (maybe it will cost to me 100 dollars or more...)
Thanks