MCUmall EPROM BIOS Chip Burner Forum
MCUmall EPROM BIOS Chip Burner Forum
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Spiros

Greece
3 Posts

Posted - 03/21/2011 :  03:03:05  Show Profile  Reply with Quote
I 've bought recently a usb Pic Programmer from EasyTechnology.gr and I try to program a PIC18F4321. The problem is that the programmer is showing a chip with 28 pins and the Pic18F4321 has 40 pins. What I have to do?

Also I try to reprogram a PIC18F4455, but with choise BLANK , Erase Chek show me that:
ROM=Not Erased
EEPROM=Not Erased
ID=Erased
FUSED=Not Erased

When I try to Erase the chip, show me that the "chip has been Erased", but the chip has not been erased tottaly.
What happens?
Thanks

sm

Edited by - Spiros on 03/21/2011 04:02:37
Reply #1

ZLM

2923 Posts

Posted - 03/21/2011 :  09:00:41  Show Profile  Reply with Quote
If your package is not supported, then you need to use ICSP mode to program it.

When erase, the BLANK button has two features, blank check and erase. Use ERASE option,
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Reply #2

Spiros

Greece
3 Posts

Posted - 03/21/2011 :  10:13:50  Show Profile  Reply with Quote
I have done Blank, Erase, the indication after the erase is: erased succesfuly, but the chip does not erase. I read the chip and the ROM has a code wrriten yet, different from FFFF

sm
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Reply #3

Spiros

Greece
3 Posts

Posted - 03/24/2011 :  02:25:43  Show Profile  Reply with Quote
I have resently bought a USB PIC Programmer and I have tryied to program a PICF4455. The program had a bug, so I would like to change the program. I tryied to chek erase the program and the message was ROM not Erased, EEPROM not Erased, ID not Erased, FUSES not Erased. I erased the program and the message was "has been erased" , but the chip was not erased.

I tryied the same with the PIC18F4321 and the problem was the same.

I am effraid, that I do somthing wrong. Can you help me?

Also, I do not have a manual for the programmer.

Thanks in advance

sm
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Reply #4

ZLM

2923 Posts

Posted - 03/29/2011 :  09:27:38  Show Profile  Reply with Quote
Try to increase delay time for this chip. The default value is ProgramDelay=10 , try to use ProgramDelay=100.

Steps:
1. open the CHIPINFO.CID text file using windows Notepad.exe.
2. search the "CHIPname=18F4455"
3. change the ProgramDelay=10 to ProgramDelay=100.
4. file save.
5. start the software and try.
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Reply #5

marcosbmx

Paraguay
1 Posts

Posted - 01/24/2013 :  17:26:14  Show Profile  Reply with Quote
I have the same problem with 18F4550. Now try what suggested but I still have the same error. Any other suggestions?
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