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Spiros
Greece
3 Posts |
 Posted - 03/21/2011 : 03:03:05
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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
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Edited by - Spiros on 03/21/2011 04:02:37
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| Reply #1
ZLM
2937 Posts |
Posted - 03/21/2011 : 09:00:41
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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
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| 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 |
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| Reply #3
Spiros
Greece
3 Posts |
Posted - 03/24/2011 : 02:25:43
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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
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| Reply #4
ZLM
2937 Posts |
Posted - 03/29/2011 : 09:27:38
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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
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| 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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Topic |
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usb PIC programmer failure
