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CT60 and related things BBS
| Re: Last suggestions |
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Posted by: Rodolphe
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Jun,17.2010-18:35
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When you do an operation inside a CPLD, all pins are going to tri-state (like disconnected from the PCB !).
If you launch a verify into SDR, the ABE is not touched I think because the serial JTAG bus is going through ABE and SDR (they are serial connected !!).
My question is : what happens if you do a VERFY on ABE ???
If nothing, the SDR is the only source of the problem !
A pin is surely dammaged electricaly and is loading a signal , so the CT60 cannot boot (crash somewhere in the flash).
When sending VERIFY, the damaged pin is tri-stated and so the loading problem is removed.
suggestion to find which pin : POWER OFF and CT60 disconnected, check resistance value of all pins on SDR beetween the pin and GND and/or VDD (3.3V)...a bad pin will give you a lowest value than the good pins.
Do not lost time on SDRAM pins : it is not the problem here !
The pins to be checked are all connectd to 060 bus !
Check too the 2*3 IPL pins (for INT).
Use a digital ohm-meter.
Regards
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Topic
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Posted by
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Date
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Last suggestions
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Crash
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Jun,08.2010-02:07
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Re: Last suggestions
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mikro
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Jun,08.2010-10:13
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Re: Last suggestions
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Crash
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Jun,08.2010-15:18
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Re: Last suggestions
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mikro
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Jun,08.2010-16:08
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Re: Last suggestions
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Crash
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Jun,08.2010-18:04
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Re: Last suggestions
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Didier Méquignon
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Jun,08.2010-20:09
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Re: Last suggestions
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Crash
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Jun,09.2010-00:57
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Re: Last suggestions
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Rodolphe
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Jun,17.2010-18:35
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Re: Last suggestions
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ggn
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Jun,09.2010-09:43
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Re: Last suggestions
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Crash
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Jun,10.2010-04:43
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Re: Last suggestions
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Joe Iron
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Jun,10.2010-08:58
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Re: Last suggestions
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mikro
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Jun,10.2010-09:08
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Re: Last suggestions
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evil
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Jun,10.2010-15:10
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Re: Last suggestions
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Didier Méquignon
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Jun,10.2010-17:33
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Re: Last suggestions
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Crash
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Jun,10.2010-14:27
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Re: Last suggestions
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raphael
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Jun,10.2010-21:40
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Re: Last suggestions
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Didier Méquignon
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Jun,11.2010-12:50
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Re: Last suggestions
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mikro
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Jun,11.2010-15:43
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Re: Last suggestions
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Didier Méquignon
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Jun,11.2010-17:32
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What's the anti-troll code?
That's your personal code to be able to add comments and messages on the dhs.nu site.
Don't have a code or forgot it? Fix it here.
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