Add external SPI Flash Memory to Raspberry Pico - 1: hardware

RE: Add external SPI Flash Memory to Raspberry Pico - 1: hardware

Jan Cumps — Sun, 27 Nov 2022 17:07:28 GMT

I have troubles writing a blog, but the firmware works. Here's a capture of checking the IC's Read Identification (RDID):

RE: Add external SPI Flash Memory to Raspberry Pico - 1: hardware

Jan Cumps — Thu, 24 Nov 2022 22:01:54 GMT

No success yet. I'm trying to read the 8-bit manufacturer identification of the external SPI EEPROM. Good news is that the SPI traffic looks healthy.

RE: Add external SPI Flash Memory to Raspberry Pico - 1: hardware

colporteur — Sat, 19 Nov 2022 21:59:56 GMT

JC you're so deep I need tanks. I think it is best I just snorkel on the surface for now. I am excited about your video link. Going to do the intro shortly.

RE: Add external SPI Flash Memory to Raspberry Pico - 1: hardware

Jan Cumps — Sat, 19 Nov 2022 19:46:51 GMT

Initial communication capture:

RE: Add external SPI Flash Memory to Raspberry Pico - 1: hardware

shabaz — Sat, 19 Nov 2022 17:44:50 GMT

Just thinking, this project will be very handy for reverse-engineering. Remove out the memory chip from boards and read off. I could have used that a couple of months back when I was trying to figure out how to reconfigure a car stereo from Japan to UK frequency operation. There are some low-cost 8-pin ZIF sockets (probably not great quality, but good enough!) like this one: