PICO FLASHER

Command-line tool to interface with the Pico SST39SF0x0 Programmer.

Note

Although the tool is designed for Linux machines in general, testing of the tool is primarily done on the Raspberry Pi.

Compilation instructions

Dependencies

Ensure you have the required dependencies on your system

sudo apt update && \
sudo apt install -y build-essential cmake libcurl4-openssl-dev \
libopenssl-dev libtclap-dev pkg-config libudev-dev

Compilation

mkdir build
cd build
cmake ../src
make -j

To install picoflash systemwide, run

sudo make install

Usage

Pico Flasher has 4 operational modes:

• Read: Read data from chip and write to binary file
• Write: Write data to chip from binary file
• Verify: Verify data on chip using binary file
• Erase: Erase all data on chip (set everything to 0xFF)

Without any further parameters, these modes operate on the whole chip. For the write and verify operations, it is also possible to execute these for a single 16 KiB bank.

Read

picoflash -o <BINFILE> -r

• -o: Output files
• -r: Read mode

Write

picoflash -i <BINFILE> -w [-b <bank>]

• -i: Input file: Can be either local file or URL. If a URL is supplied, the data is automatically grabbed from the internet via an internal CURL routine.
• -w: Write mode
• *(optional) -b: Bank to write to. Input file has to be strictly 16 KiB for this mode.

Verify

picoflash -i <BINFILE> -v

• -i: Input file: Can be either local file or URL. If a URL is supplied, the data is automatically grabbed from the internet via an internal CURL routine.
• -v: Verify mode
• *(optional) -b: Bank to write to. Input file has to be strictly 16 KiB for this mode.

Erase

picoflash -e

• -e: Erase mode

Testing

There is also a test mode which will perform a number of operations on the chip, basically checking both the working of the Pico Flasher as well as of the SST39SF0x0 chip. To use this mode, simply run

picoflash -t

Important

This will irrevocably remove all data on the chip. If this is not your intention, make sure you make a copy of the chip's contents first using the read operation.