Hi David, The pin is defined as BOARD_ZEROCROSS_GPIO, please look at
nuttx/boards/arm/stm32/stm32f103-minimum/include/board.h nuttx/boards/arm/stm32/stm32f4discovery/include/board.h The board initialization code is here: nuttx/boards/arm/stm32/common/src/stm32_zerocross.c And the example is here: apps/examples/zerocross/zerocross_main.c The old video example is here: https://www.youtube.com/watch?v=NRMnW6jKsiw Best Regards, Alan On Tue, Apr 30, 2024 at 4:07 PM David Welshon <david.wels...@gmail.com> wrote: > Is there an example driver, that I should/could look at to add pins to the > zerocrossdriver? > What would be the steps involved if I wanted to add pins to an stm32f401re? > I am currently using the stm32_zerocross in the stm32/common/src folder. > > but it looks like this lower half is hardcoded for 1 pin. > > Thanks for any pointers > > David >
