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Upon a raspberrypi I hooked up a macronix MX35LF1GE4AB flash memory chip. For that I hooked the chip into a raspberrypi zero w like this:

enter image description here

The chip is connected as:

Flash Memory Raspberry Pi GPIO pin
CS Pin 24 GPIO 8
SI/SIO0 Pin 19 GPIO 10
SO/SIO1 Pin 21 GPIO 9
WP#/SIO2 Pin 18 GPIO 24
HOLD#/SIO3 Pin 16 GPIO 23
SCLK Pin 23 GPIO 11
VCC Pin 1 3.3V
GND Pin 20 GND

And then once sshing into raspberrypi I run:

sudo flashrom -p linux_spi:dev=/dev/spidev0.0,spispeed=512 -r ./flashrom.bin flashrom 1.4.0 on Linux 6.12.47+rpt-rpi-v6 (armv6l) flashrom is free software, get the source code at https://flashrom.org No EEPROM/flash device found. Note: flashrom can never write if the flash chip isn't found automatically.

I also tried another spi device as well

sudo flashrom -p linux_spi:dev=/dev/spidev0.1,spispeed=512 -r ./flashrom.bin flashrom 1.4.0 on Linux 6.12.47+rpt-rpi-v6 (armv6l) flashrom is free software, get the source code at https://flashrom.org No EEPROM/flash device found. Note: flashrom can never write if the flash chip isn't found automatically.

But as you can see I am unable to dump the flash memory chip. Do you know why?

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  • why don't you instead ask How to dump Macronix flash memory chip? Commented Nov 12 at 0:44
  • Don't expect everyone to search for a data sheet. List connections rather than drawing a confusing picture. Have you enabled SPI? Commented Nov 12 at 5:36

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