flashreader 1.1.0

Read/write i2c & spi memory chipsets (Flash & EEPROM)

Python Flash Reader

Flash Reader allows to read and/or write any EEPROM or Flash memory via SPI or I2C. This library is particularly useful in case of reverse engineering or prototyping for embedded systems (RPI, etc..).

from flashreader.memory import spiflash, m95, mx25, w25q, _24lc, _25lc, _25aa
from flashreader.platform import ft232h, raspberrypi

with ft232h.Platform() as platform: #Open FT232H adapter
    with spiflash.Memory(platform) as memory: #Open generic SPI flash
        print(f"Writing hello world @0x0000...")
        memory.write(0x0000, b'Hello World')

        buf = bytearray(memory.read(0x00000000, 11))
        print(f"Read @0x0000: {buf}")

Supported platform

• Raspberry pi 4
• FT232H (Adafruit)

Support memory

• Various spi serial flash
• Macronix mx25R..., mx25L...
• Microchip 25aa..., 25lc...
• Winbond w25q...
• Microchip 24lc...
• ST m95...

Quick start (Raspberry pi 4)

Setup Raspbian

apt-get install python3 python3-pip python3-spidev python3-monotonic
sudo raspi-config

• Go to "Interfacing Options" > "SPI" > "Enable"
• Reboot the RPI

Wiring

• SPI: PIN19(MOSI), PIN21(MISO), PIN23(SCK), PIN11(CS)
• I2C: PIN3(SDA), PIN5(SCL)

Quick start (Windows)

Setup Windows

• Plug FT232H
• Use Zadig (https://zadig.akeo.ie/), select the USB device in the list, select libusb-win32 and replace the driver (DO NOT USE WINUSB or any other driver).

Wiring

• SPI: D0(SCK), D1(MOSI), D2(MISO), D3(CS)
• I2C: D0(SCL), D1(SDA)

Run

Read spi flash (By using generic driver: spiflash)

python -m flashreader --platform raspberrypi --memory spiflash --read ./dump.bin --offset 0

Write spi flash (By using generic driver: spiflash)

python -m flashreader --platform raspberrypi --memory spiflash --write ./dump.bin --offset 0