Tag Archives: image processing

Reading Flash and EPROM chips and visualizing their contents

This post can be seen as a follow up to my recent post[1] adressing the G540 universal programmer. The reason why I bought this programmer was that I have collected many old memory chips. I was always curious what kind of interesting data they might contain. A EPROM reader was needed and since my urge to build an Arduino shield for that purpose lapsed soon after sourcing some MCP23S17[2] SPI port expander chips.  So I bought the G540 I mentioned before.  Continue reading Reading Flash and EPROM chips and visualizing their contents


  1. My first impression of the Genius G540 universal programmer 
  2. Microchip product page of the MCP23S17