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by dbwalker0min
Fri May 24, 2019 7:21 pm
Forum: Advanced users
Topic: STICKY: HOWTO: Raspi HAT EEPROM and device-tree
Replies: 11
Views: 38262

Re: STICKY: HOWTO: Raspi HAT EEPROM and device-tree

To access the HAT ID EEPROM, maybe it would be best to design the board in such a way that it can be connected to the main I2C bus. Then, it would be easier to access. I suggest something like the following circuit: schematic.png When the jumper is not in place, the internally pulled down WP signal ...

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