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From 07/20/2017 to 08/18/2017

08/15/2017

SB 01:57 AM PCB Development: EMI testing
Has the MitySOM-5CSX ever been involved in EMI testing? I'm getting reports from a customer that there is quite a bit of radiated noise at the DDR3 frequency range. They haven't given the details yet, but it would be great to know if y... Stephen Brown

08/03/2017

NH 07:25 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX
We are using kernel version 4.1.22
-Nick
Nicholas Herbert
MW 07:22 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX
What version of the kernel are you using? From our site? Version 3.16?
-Mike
Michael Williamson
NH 06:58 PM Software Development: RE: Using EEPROM available on MitySOM-5CSX
Mike,
I recently picked up this task and haven't been able to see the NOR flash device in the MTD devices list. On boot-up I get the following message:
[ 1.159717] cadence-qspi ff705000.spi: couldn't determine tshsl-ns
[ 1.1...
Nicholas Herbert

07/20/2017

MW 06:09 PM Software Development: RE: I2C Slave Communication Hanging
So I didn't respond right away as you are using verilog and I am more of a VHDL guy, but there is an open drain primitive called OPNDRN.
You can see an example of it inferred in VHDL here (bottom of file) for I2C routing like you are ...
Michael Williamson
JP 05:43 PM Software Development: RE: I2C Slave Communication Hanging
We appear to have finally discovered the root cause of our issue. We actually had a self-inflicted bug where the SCL line on this one port was defined as "output" rather than "inout". Thus, we didn't really have the "open drain" we thoug... Jay Petrie
 

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