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JDM Hardwaretest problem


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All the smoke for nothing  ::) ... it was the USB/Serial converter.

Bootstrap loaded perfectly  :D

Sorry for the buzz for nothing (... I suddenly remembered, that I once read something like that)

Greets, Roger

PS: So all the soldering was perfect... and I'm proud, it's the first PCB (after thousends of XLR and Bantam plugs) I soldered in my live  8)

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Hi Roger,

better to add such an important information next time ;-)

It's clear why it cannot work with a USB/serial converter, because ic-prog has to access the physical port directly to drive the current pump (the circuit around Q1)

Best Regards, Thorsten.

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Hi there...

first, sorry for my english.

it is 2 am and am crazy.

I have a same problem, but i don use a COM/usb converter.

Using no external power (because ther is no diference)

XP user, also tried with WIN 98, tried with TALIO.sys and USERPORT.sys drivers

The voltage`s are:

VSS - MCLR#  - Once I had 12.5V when i used TALIO.sys drivers but after READING a pic everything came back to voltage : 0.5V

VSS-MCLR# (during reading - 3.5V  (but when, am guessing,Talio didnt work,  i had same 0.5V )

so anyway tried to program it but it didnt work

other voltages are in normal range

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