![]() ![]() One day I was scanning the schematic for the Peter Crowcroft version of the programmer (I was unable to find a schematic for the clone versions) and I noticed that only 3 signals came from the FTDI/Prolific chip. Then Windows 10 came along and it was nearly impossible. With each new version of Windows it became more and more difficult to find a driver that would run correctly. ![]() I seems the Prolific wasn’t happy about unauthorized copies of it’s chips being sold so they added code to their drivers to detect the illegal devices causing the driver to fail to load. ![]() The problem you see is that on these clones, the FTDI USB-Serial converter chip was replaced by a cheaper PL2303 chip by Prolific Inc. Printer ports and Serial (COM) ports disappeared from most PCs long ago.įor quite some time things were fine. I started out programming Atmel AVR chips because at that time, all you needed to build a programmer was a cable that was wired to your PC’s printer port. Quite a few years ago I purchased one of these and a few PIC chips to learn how to program and use that line of microcontrollers. ![]() These are modified copies of the K150 programmers by Peter Crowcroft. You may have seen these dirt cheap K150 programmers for PIC microcontrollers for sale on ebay. ![]()
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