Which eeprom do u want to program. Dec 09, 2012 I want to use a PL2303 with a custom VID/PID and I. A software tool called 'EEPROM Writer Program' is available to program this EEPROM. Utilizing a prolific pl2303hx usb to ttl ic the cable creates a direct connection from the uart of a microcontroller to a. Pl2303 eeprom writer 114.65 kb.

HI, OK, I have spent quite a while with this now and I can confirm that my laptop and desktop are both doing the same thing. I programmed a chip (16F628A) without code protection using MPLAB and PicKit 3. The chip programmed and verified. I then read the chip using your software and board - the read looked good as far as I can tell. Using a second chip I erased it and then attempted to program it using the code I had just read from the mplab programmed chip.

It generated the error at the end indicating that the EEPROM had a problem. Using the laptop and desktop side by side I can confirm that the flash code looks good but the EEPROM has not programmed correctly - exactly as the error reported. I also tried it with a different USB cable on the laptop, result was exactly as above. If you are able to read the devices ok then this narrows it down to a programming issue.

From the information you have given us you have managed to rule out a lot of possibilities and so you may want to consider returning it back to us for testing. Chertezhi modelej parusnih korablej besplatno. If you decide to do this please email us a sales @ hobbycomponents.com referencing your order number and will provide you with information and terms on how to return it back to us. If the board is faulty we can cover return postage fees. If you don't want to return it just yet, and you have a multimeter, you could try to measure the RA5/MCLR/VPP pin whilst the device is being programmed to see if it is at the correct voltage.