I need to control levels of Vpp, Vdd, write to Data and Clock pins. I know it sets Vss to -5V but still it's hard for me to understand other details. But I have problems with understanding how JDM works. I find it really stupid, when OS fails to write data to FDD of HDD it tryes again several times and then asks something like "Retry, Abort, Ignore?", don't know why all those programmers don't use this approach.Īs it seems that there's no open source programmer available, I need to write one by myself, and I decided to use pySerial. Every programmer I've tryed failed to proceed after first failed attempt to write. I need programmer that would retry to write a word after failed attempt. ![]() I don't know what should be fixed in board and wheather it's possible to make it work properly (maybe some problems with my COM port), but anyway I'm sure I could write chip with different software. I've built a JDM Programmer but sadly can't use it, IC-Prog and WinPic800 both fail after writing some words (with verify during programming chosen).Īlready tryed several settings (like various deleays in IC-Prog).
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