Hi, I appreciate that ST7 technology is totally obsolete, but as a hobby, I repair electrical appliances. One such item uses ST7, or more specifically, ST72F262 chips. But the power supply circuit isn't well designed and fails, outputting well over 5v on the trail, frying the ST7 on the way.
I'd like to resurrect some failed boards by installing a new micro, plugging into the 10 pin connector and flashing a clone of the programme flash from a good board. I have some experience with STM32 devices, but nothing with ST7. The target board features a 10-way connector wired exactly as per the diagram in the data sheet.
I don't need to write or develop new software, I just wish to read the programme memory out of a good board and flash it into a new micro that has been installed onto the board. I've done this before with PICs, so the principle isn't too hard. The PIC wasn't read-barred, so hopefully the ST72 won't be either.
Can anyone steer me towards a solution? I have ST-Link V2 programmer, but that is my only hardware other than my Pickit programmer, or serial-interface-based programming as per Arduino, or Raspberry Pi Pico etc.
Thanks in advance,
Brian (UK)
