GPIO[32:30]: After boot-up, these signals can be used as GPIOs ... | Cypress Semiconductor
GPIO[32:30]: After boot-up, these signals can be used as GPIOs ...
I'm referring to the statement
"GPIO[32:30] (PMODE[2:0]) signals should be configured appropriately at FX3 boot-up. After boot-up, these signals can be used as GPIOs." i
which can be found in the "GPIF II Interface" section in AN70707
Trying to use these GPIO, I either end up in CY_U3P_ERROR_BAD_ARGUMENT when trying to enable them as simple GPIO during CyU3PDeviceConfigureIOMatrix or in CY_U3P_ERROR_NOT_CONFIGURED when trying to override them later. I found some "dirty tricks" with writing own API functions to solve that issue, but I think there must be an "official" way through the API to use those pins as GPIO, after all it is mentioned in AN70707. How is it done?