Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

08/03/2021

05:23 PM PCB Development: RE: Note on MM70-314-310B2-1-R500

Oh wow! Thank you for the note Lucas!
Dan Daniel Vincelette

02:07 PM PCB Development: Note on MM70-314-310B2-1-R500

Dropping a note that when I was ordering parts for our carrier board prototypes, I wound up ordering the JAE MM70-314... Lucas Uecker

08/02/2021

03:55 PM PCB Development: RE: Ethernet PHY

Hi Lucas,
That's awesome to hear, thank you for the update!
Also as a note, you could try adjusting the skew se... Daniel Vincelette

03:45 PM PCB Development: RE: Ethernet PHY

Found the problem; it was right between my ears.
I was careful to alter the symbol for the KSZ9031 so that it was ... Lucas Uecker

07/16/2021

01:10 PM Software Development: RE: Reading out the LTC2945

Thanks for the information Tim, that helps a lot.
I've got a custom dev tree, but then I know where to look and copy... Jonas Mair

01:05 PM Software Development: RE: Reading out the LTC2945

Jonas,
the schematic for the baseboard is available here... https://support.criticallink.com/redmine/attachments/dow... Tim Iskander

09:34 AM Software Development: Reading out the LTC2945

Hey,
I am currently benchmarking my design and want to know the power draw by the system. Under https://support.cr... Jonas Mair

07/15/2021

05:40 PM Software Development: RE: USB Powered Hub and FTDI Cable

Lucas,
I have found a design that we've used that has the same USB hub that you're using. And after comparing it w... Daniel Vincelette

04:20 PM Software Development: RE: USB Powered Hub and FTDI Cable

Dan-
I shorted R19, R31, and R34 in the above schematic and removed R30, C7, and C15.
After a USB storage drive... Lucas Uecker

04:38 PM PCB Development: RE: Ethernet PHY

The ethernet section.
!Eth0.png! Lucas Uecker

04:31 PM PCB Development: RE: Ethernet PHY

Hi Dan,
It does show no link detected. We will poke around further.
Thanks! Travis Rawson

03:55 PM PCB Development: RE: Ethernet PHY

Hi Lucas,
It looks like the MAC does see the phy because of the following line:... Daniel Vincelette

07/14/2021

09:49 PM Software Development: RE: USB Powered Hub and FTDI Cable

Thanks Dan!
I'll try the modifications as soon as I can. Lucas Uecker

09:32 PM Software Development: RE: USB Powered Hub and FTDI Cable

Hi Travis and Lucas,
Thank you for the info!
I've compared your schematic with a USB 2 hub(TUSB4020BIPHP) that ... Daniel Vincelette

06:51 PM Software Development: RE: USB Powered Hub and FTDI Cable

The Model number is: 80-000705RC-9
The Serial number is: 19032369
I attached the dmesg results below. It appears ... Travis Rawson

06:28 PM Software Development: RE: USB Powered Hub and FTDI Cable

And the relevant section of SOM connector:
!USBpic2.png! Lucas Uecker

06:09 PM Software Development: RE: USB Powered Hub and FTDI Cable

USB section schematic.
!USBpic.png! Lucas Uecker

06:02 PM Software Development: RE: USB Powered Hub and FTDI Cable

Hi Lucas,
Have you tried using an unaltered version of our development SD Card on your baseboard to see if it beha... Daniel Vincelette

04:16 PM Software Development: RE: USB Powered Hub and FTDI Cable

I think there was a hardware issue on that version of the board to begin with, but similar problems on a new board re... Lucas Uecker

09:46 PM PCB Development: RE: Ethernet PHY

Hi Dan-
I've attached the full dmesg in a text file. Or do you mean the full text from the debug UART on bootup?
... Lucas Uecker

09:34 PM PCB Development: RE: Ethernet PHY

Hi Lucas,
Can you post your full boot log? With that I should be able to see if the ethernet MAC at least finds th... Daniel Vincelette

04:05 PM PCB Development: Ethernet PHY

I seem to be having trouble with the ethernet PHY on carrier board. I've tried to duplicate the PHY that is on the Cr... Lucas Uecker