Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

06/26/2026

AF 09:33 PM Software Development: RE: Using GPIO command on UBoot command line...is there any pin mapping between HPS pin # and GPIO pin #?

From Dan at CL (Thanks Dan!)
Our reference project has the following HPS IO set as GPIO:
- GPIO40 — edge pin 264 — SDMMC_D4/USB0_D4/HPS_GPIO40
- GPIO41 — edge pin 266 — SDMMC_D5/USB0_D5/HPS_GPIO41
- GPIO48 — edge pin 38 — TRACE_C... Austin Franklin

06/25/2026

AF 09:31 PM Software Development: Using GPIO command on UBoot command line...is there any pin mapping between HPS pin # and GPIO pin #?

Hi,
I have the CriticalLink UBoot image on a terminal program. There is the GPIO set/clear/toggle command. It wants a pin number. I have a logic analyzer on HPS GPIO 53 (pin 26 on the MitySOM connector). After UBoot comes up, that... Austin Franklin

06/24/2026

AF 03:38 PM PCB Development: RE: LED on nCONFIG...

Hi Mike,
Thank you for the confirmation. I've attached a picture of my proposed update to our MitySOM boards. Any comments appreciated.
Best Regards,
Austin
Austin Franklin

MF 02:21 PM PCB Development: RE: LED on nCONFIG...

Hi Austin,
You are correct that the Cyclone V cannot drive this pin. It is a configuration control input which must be driven externally via HW if needed. You would drive this pin low if you needed to reset, reconfigure the device or ... Mike Fiorenza