Mity CPU Platforms

09/08/2023

10:36 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Thank you for the very quick and thorough response. We have found the i2c-davinci driver in our MDK / bo... Jon Cox

06:39 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Note as is, the bus recovery I linked looks like it requires i2c gpio pins which probably won't work for the L138. I... Jonathan Cormier

06:19 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jon Cox wrote:
> Hello,
>
> We are developing on the MityDSP-L138F platform and have noticed an intermittent issu... Jonathan Cormier

05:38 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Hello,
We are developing on the MityDSP-L138F platform and have noticed an intermittent issue with the I2C bus han... Jon Cox

06:40 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MityDSP-L138F I2C bus hang (SDA held low)

Saw the other post first so responded there. https://support.criticallink.com/redmine/boards/11/topics/6473?r=6475 Jonathan Cormier

05:38 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: MityDSP-L138F I2C bus hang (SDA held low)

Hello,
We are developing on the MityDSP-L138F platform and have noticed an intermittent issue with the I2C bus han... Jon Cox

09/07/2023

03:04 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: RE: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

The fix for this was pushed to the meta-mitysom dunfell branch last friday. Please let me know if you are still seei... Jonathan Cormier

02:18 PM MitySOM-AM62, MitySOM-AM62A, & MitySOM-AM62P Software Development: Error building kernel and rootfs on host having Ubuntu 23.04 with docker

(posted on behalf of customer)
We were trying to develop environment for Kernel and Rootfs development using fol... Thomas Catalino

08/31/2023

12:16 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: MityDSP-L138F Boot issue, I2C0

Hi JC,
The low level boot software (first stage, user boot loader, UBL) reads the EEPROM on the I2C0 bus to determ... Michael Williamson

08/30/2023

10:16 PM MityDSP-L138 (ARM9 Based Platforms) PCB Development: MityDSP-L138F Boot issue, I2C0

I'm an electrical engineer working on the design of a system using the MityDSP SoM - in particular, the L138-FI-325-R... Jon Cox

08/15/2023

08:49 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Mitysom a10s does not start under U-Boot 2021.04

Hi Dmitry,
The REFCLK_GXBL_ signals are AC coupled to the PLL chip, so the common mode
should be less of an issue... Michael Williamson

07:50 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Mitysom a10s does not start under U-Boot 2021.04

Hi, Dan
I found discrepancy:
In Arria 10 and SI5338 datasheets voltage values are significantly different.
May b... Dmitry Kolotsei

07:38 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Replacement UBoot 2014.10 on 2021.04

Hi, Mike
I found than dedicated pins i2cemac2 were not configured well.
After fix this I saw the correct status 0... Dmitry Kolotsei

08/10/2023

09:54 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Replacement UBoot 2014.10 on 2021.04

Hi Dmitry,
Have you modified the HPS pin configuration from the reference project?
We are wondering if the I2C ... Michael Williamson

03:22 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Replacement UBoot 2014.10 on 2021.04

Thank you, Mike.
I will wait.
Additional info.
During the while cycle i2c status is 0x00.
Br, Dmitry
Dmitry Kolotsei

02:55 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Replacement UBoot 2014.10 on 2021.04

Hi Dmitry,
I see your request. I am consulting with some engineers here to figure out what is going on.
When I... Michael Williamson

02:35 PM MitySOM-A10S Altera Arria 10 Software Development: RE: Replacement UBoot 2014.10 on 2021.04

Hi, Mike
I found the reason why PLL is not configured.
UBoot did not get access to I2C bus. The bus id busy.
I... Dmitry Kolotsei