Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

09/11/2023

05:52 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Fantastic! This is exactly what we were looking to implement, and the fact that it is automatic as-is is... Jon Cox

05:42 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Let me know if it works and i'll merge the commits into the main 3.2 branch Jonathan Cormier

05:37 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Its supposed to catch a bus hang and switch into bus recovery by itself.
I'd suggest going into drivers/i2c/i2c-... Jonathan Cormier

05:32 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Excellent - thanks for the very quick and thorough fix on this.
Regarding the usage of these committe... Jon Cox

04:15 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Hi Jon,
Can you try out the commits pushed to this branch and let me know if it works? I don't have time right no... Jonathan Cormier

09/08/2023

10:36 PM 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 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 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 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 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 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

08/31/2023

12:16 AM 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 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