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From 05/24/2017 to 06/22/2017

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

06/01/2017

MW 11:52 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX
Hi Jared,
Before you get into the I2C EEPROM, does the MitySOM you are using have the QSPI NOR FLASH installed (most do)? If you are booting from SD card than that should be wide open (and ranges from 8 to 32 MB depending on the inst...
Michael Williamson
JK 10:39 PM Software Development: Using EEPROM available on MitySOM-5CSX
+Context:+
My team would like to store some non-volatile data specific to a unit of hardware (independent of the SD card / image) in our system, and decided the appropriate place to store this information would be the EEPROM available...
Jared Kirschner
 

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