EZoFlash форум

First test results. The bad news: I still can't read the bios chips. Their IDs are read as 0x00 or 0xFF, as well as all their data. (0xFF on the PMC ones) Update: it works now! (see below) The good news: exchanging the resistors helped a lot. New values: jupered to 5V VCC, 12.5V VPP, external power ...

Anyway. Assuming that the printed values on the board are correct, I started swapping the parts for the correct values. At the moment, I have counted 8 or 9 wrong resistors and all 4 of the electrolyte capacitors differ from their printed values (but only by a maximum factor of 2) At the moment, I s...

Thanks for the swift reply. The complete lack of documentation by sivava makes everything complicated. Did you mean with "Check/measure" that I should check if the dip switch bank itself is working correctly (having/not having a connection in on/off state)? That is the case, I quickly checked: all o...

I recently bought a sivava pcb 5.0b with software 98d12c 4 . I can't get the programmer to read PLCC32 lpc/fwh bios chips correctly. UPDATE: It works now and was a hardware issue, see later posts Dumping an Arduino Uno R3 chip flash via SPI (ICSP) worked fine, as far as I know. The chip jumpers are ...