Prototyping Area HAT (Hardware Attached on Top) for Raspberry Pi.
The EEPROM on the HAT can be updated as follows. Before the update the WP jumper next to the EEPROM has to be closed.
Install EEPROM utils:
$ git clone --depth=1 https://github.com/raspberrypi/hats
$ cd hats/eepromutils
$ make
$ chmod +x eepflash.sh
Generate EEPROM data:
$ wget https://github.com/watterott/RPi-Proto-HAT/raw/master/software/rpi-proto-hat.txt
$ ./eepmake rpi-proto-hat.txt rpi-proto-hat.eep
Update/Flash EEPROM:
$ sudo ./eepflash.sh -w -t=24c32 -f=rpi-proto-hat.eep
Note: For a Device Tree Kernel add to /boot/config.txt
the following line before flashing: dtparam=i2c0=on
(before any dtoverlay statement).