Mity CPU Platforms » MitySOM-5CSX Altera Cyclone V

07/14/2021

LU 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

DV 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 we've used with the 5CSx SOM before and the big standout difference to me is the series resistors/pull-ups/caps on USB1_... Daniel Vincelette

TR 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 that it is doing the same thing with the base image.
Travis Rawson

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

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

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

USB section schematic.
!USBpic.png! Lucas Uecker

DV 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 behaves the same way? This might be helpful in narrowing down on a software/kernel issue.
The images can be found here: htt... Daniel Vincelette

LU 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 revision that includes a TI TUSB2046BIRHBR hub:
-grounded USB1_ID via 330 ohm resistor
-267 ohm resistor between +USB1... Lucas Uecker

LU 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?
Thanks! Lucas Uecker

DV 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 the PHY over the MDIO interface.
Thanks,
Dan Daniel Vincelette

LU 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 Critical Link demonstration board with the known exceptions of using a Microchip KSZ9021RN in place of the KSZ9031RN as we... Lucas Uecker

06/24/2021

TR 09:14 PM Software Development: USB Powered Hub and FTDI Cable

Hello,
I was wondering if someone could point me in the right direction with an error I have. I have a powered USB hub connected to our dev board, and we can connect a USB hard drive to it and use it. However, when I try and connect a... Travis Rawson

AB 01:27 AM PCB Development: RE: USB Hub

Lucas,
The USB Hub you have selected handles both the VBUS enable and Overcurrent detection for each of the ports, please follow the USB2046 recommendations for connecting these signals to the TPS2044D power distribution switches. As ... Alexander Block

06/23/2021

LU 01:19 PM PCB Development: USB Hub

Hello-
I'm working on adding a USB hub to a carrier board design, largely following the application example:
https://www.ti.com/lit/ds/symlink/tusb2046b.pdf
I'm replacing the single channel TPS2041BDBVRG4 to a four-channel TPS20... Lucas Uecker

DV 12:30 PM Software Development: RE: Ethernet on MitySoM

Hi Jonas,
Awesome, I'm glad to hear it!
Best regards,
Dan Daniel Vincelette

JM 11:50 AM Software Development: RE: Ethernet on MitySoM

Hey Dan,
I just received the new board and ethernet worked instantly without any problems!
Thanks again for the help.
Regards Jonas Jonas Mair