HP-488 "Could not ID the on-board chip"

[talhataj]

Hi Guys,

I am using HP488 v3 to program my PIC18f452 through PPP v3.9.12.26, but as i try to autodetect my controller, it says "Couldnot ID the on board device", i have checked the necessary PSU and USB jumper settings as per manual but still no sucess. I am using 13.5 supply. Also, when i try to detect and then program the builtin PIC 16F88 it works fine, i donot what is the problem. I have tried several chips PIC18F452 , PIC18F258 etc but no result............Please Help

Regards,
Taj.

[Enamul]

I am using HP488 v3 to program my PIC18f452 through PPP v3.9.12.26, but as i try to autodetect my controller, it says "Couldnot ID the on board device"

It's pretty common with 18 series PIC at least EB006 board I am facing always. Couple of solutions could be..
1. Try to re-install usb driver for HP488 v3. (Here is the ppp I have posted..you can try that new one..http://www.matrixmultimedia.com/mmforum ... f=7&t=4992)
2. Un-plugging the usb cable and re-plugging it.
3. Can you please make sure that nothing is connected to portb?
Please let us know how it's getting.

[talhataj]

Tried plugging and re-plugging several times, also nothing is connected to portB. I am using HP-488 board not the Eb006. I have updated the driver also but still the same message "Could not ID the on-board device". :/

[Enamul]

I am using HP-488 board not the Eb006.

I know that but they are similar and problem nature is similar. you will be surprised to know..I sometime need to re-install usb driver every time I power off the board and re-power again.

[talhataj]

I am using Windows 7 , could that be a problem, but if it is then why it is detecting and programming the builtin PIC16F88????

[Enamul]

That is 16 series PIC and works fine and easy with any 16 series pic. But some of 18 series causes this problem. I don't know why exactly but you can PM David. He could give you a clue.

[Benj]

Hello,

Just checking but have you removed the 16F88 device when inserting the 18F devices?

[talhataj]

I am using socket U40 for my PIC18F452, while socket U18 has the built-in 16F88, i have not removed it, it came with the board and i think its non-removable

[Enamul]

No no. Only one chip can be used at a time in the board and chip pic 16f88 is removable. That is just a bonus chip to play with. Please remove that and put only 18f452 and try again.

[talhataj]

Oh i removed the 16F chip and now its working, thanks a million

Taj

[Enamul]

Glad it worked now