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HorizonTechno
Guest
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| ICD-U |
 Posted: Sun Sep 03, 2006 7:07 pm |
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Hy!
I have put 5V on ground in the ICD-U by error
When i perfrom test on ICD all is OK
But when i try to emulate or write on pic , a verify open open and all register not get the good value ?
I Need help to find the burn part inside the ICD module ?
Thanks
Alain Tanguay |
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kender
Joined: 09 Aug 2004
Posts: 768
Location: Silicon Valley
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| Re: ICD-U |
| Posted: Tue Sep 05, 2006 12:59 am |
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| HorizonTechno wrote: | | I Need help to find the burn part inside the ICD module ? |
I guess, you've pried the enclosure open already. Do you see any charred parts?
Check with a multimeter: are ICD's +5V and GND open or shorted? Check if PGM or PGC or PGD or MCLR are shorted to +5V or GND?
Connect the opened ICD-U to the USB. Does the ICD PIC's crystal oscillate? Does the FTDI's crystal oscillate? They probably do, since the ICD passes the test, but check anyways. |
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HorizonTechno
Guest
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| ICU-u |
| Posted: Tue Sep 05, 2006 6:16 pm |
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Hy !
I have make some test ,
I have no burn part !
The pic have good 5V .
No short on the rj11 header on all pin.
The only thing is the OSC on the pin have have no oscillation just .9v and 2v on OSC pin ?
Thanks
Alain |
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kender
Joined: 09 Aug 2004
Posts: 768
Location: Silicon Valley
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| Re: ICU-u |
| Posted: Thu Sep 07, 2006 3:38 pm |
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| HorizonTechno wrote: | | The only thing is the OSC on the pin have have no oscillation just .9v and 2v on OSC pin ? |
It's, probably, the PIC. (Althought it could be the xtall too, but it's less likely.) See if you can re-download the ICD's firmware. May be it will fix your problem without reaplacing any components. |
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