Activity
From 05/31/2017 to 06/29/2017
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 ... - 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.
- DV 04:45 PM FPGA Development: RE: Power fail interrup
- Hello Clyde,
Could you describe the situation a bit more?
Thanks!
Dan - What is the recommended input to the SOM for a power fail interrupt?
clyde
06/14/2017
- 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 ?
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...
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...
- 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 ... - 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...
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... - +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...