Sorry, can't diagnose your AI kit problem, but seen an issue with DPI displays when one tries to add a HAT.
Remember that DPI relies on GPIO0/1 for PCLK/DE. With a HAT connected these signals are configured as I2C bus for ID_SD & ID_SC.
At least my displays didn't like the fact that there are 3.9k ohms pullups for I2C on the M.2 HAT for these signals and the EEPROM connected, so stopped working. No idea what it looks like on AI HAT, but expect it to be the same.
Remember that DPI relies on GPIO0/1 for PCLK/DE. With a HAT connected these signals are configured as I2C bus for ID_SD & ID_SC.
At least my displays didn't like the fact that there are 3.9k ohms pullups for I2C on the M.2 HAT for these signals and the EEPROM connected, so stopped working. No idea what it looks like on AI HAT, but expect it to be the same.
Statistics: Posted by aBUGSworstnightmare — Wed Feb 26, 2025 6:03 am
