2022-06-05 11:22 PM
I am working on reading an External 3 bit parallel CMOS ADC (4-8 MSPS)(from MAX2771 board or Eva KIT) GNSS digital output. I want to read this digital output pins using the NUCLEO-H723ZG, I do not know if there is digital inputs pin in the board ?
if so what is speed of the GPIO pins ?
thanks in advanced
2022-06-06 02:09 AM
All the pins in the GPIO bank (16 pins) can be read via GPIOx->IDR. Could perhaps use a TIM input pin to trigger DMA.
For a clocked parallel input, perhaps look at DCMI
2022-06-06 03:25 AM
@AElta.1 "using the NUCLEO-H723ZG, I do not know if there is digital inputs pin in the board ?"
The User Manual has details of all available pins - inputs, outputs, etc.
Also look at the schematics.