It's a free world! If OP what's to spend money on two EEPROMs he/she can feel free doing so --> let's 'plug&pray'Electrically, there's no difference between one Standard HAT stacked together with a Power HAT (both with own EEPROMs), and a single HAT PCB with two EEPROMs (each with appropriate IDs) on the same I2C bus. As far as the Raspberry Pi bootloader firmware would be concerned, it can't tell the difference. It's going to probe for EEPROMs with slave IDs of 0x50 through 0x53, and if it finds one at 0x50 and one at 0x53, it'll think there are two HATs, regardless of if the EEPROMs are physically on the same PCB or not.Having two EEPROMs is plain nonsense! What do yoi expect the FW to do?Is it not obvious from the thread so far? OP wants to make a HAT that configures and uses a certain number of GPIO pins, as well as provide power capability information.What do you want to put into the EEPROM?Sure, but then it's not quite as 'plug-and-play'.So simply add your overlay to config.txt manually.
Statistics: Posted by aBUGSworstnightmare — Fri Dec 13, 2024 3:27 pm
