Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

06/20/2017

AB 05:59 PM FPGA Development: RE: Power fail interrup

Clyde,
Offhand our recommendation would be to utilize an HPS GPIO and have it configured in the GPIO controller as an interrupt.
Additionally it would be pertinent to know how long you expect power to persist after this interrupt ... Alexander Block

CS 05:14 PM FPGA Development: RE: Power fail interrupt

What more is there to say, really? We have a low voltage supervisor in our design and when the power is going to fail, we would like to take the necessary precautions before power is completely gone. Clyde Shappee

DV 04:45 PM FPGA Development: RE: Power fail interrup

Hello Clyde,
Could you describe the situation a bit more?
Thanks!
Dan Daniel Vincelette

CS 02:05 PM FPGA Development: Power fail interrup

What is the recommended input to the SOM for a power fail interrupt?
clyde Clyde Shappee

06/14/2017

CD 09:10 PM PCB Development: VCCPGM and VCCBAT

Hello, I have a 5CSX-H6-4YA-RI board.
What do I pull the MSEL lines up to when I pull them up.
(what is VCCPGM pins set to ?)
Can I set VCCBAT to +3.3V ? Craig Drennan

06/07/2017

JK 02:20 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX

Hello Mike and Adam,
I very much appreciate you both providing other suggestions readily available with our MitySOM.
We don't have a lot of data that we need to store off the SD card (well under 1 kB). Most of it will probably be w... Jared Kirschner

06/02/2017

MW 12:14 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX

The QSPI NOR is supported by the MTD layer, so you should be able to partition it and mount it using JFFS2 (or perhaps UBIFS, but I personally don't have a lot of experience with that) or even access it RAW if you like with flash_eraseal... Michael Williamson

SS 12:05 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX

We're using the 5CSX-H6-4YA so we should have 32MB of QSPI NOR, and we are booting from SD card, though it's possible we may want to put the preloader + uboot in their so we can TFTP a new SD image.
If we did use the QSPI NOR, what ... Stephen Snyder

AD 10:25 AM Software Development: RE: Using EEPROM available on MitySOM-5CSX

Hi Jared,
If you are looking for a small amount of space, there is also some memory available in the RTC. There is 256B of battery backed RAM on the AB1805-T3 RTC. Assuming you have a battery, this will hold the data until the batte... Adam Dziedzic