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

09/12/2023

08:36 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
Excellent, thanks for the steadfast effort on this!
Interesting regarding the DONE LED. We are not c... Jon Cox

08:24 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jon Cox wrote in message#6483:
> Jonathan,
>
> We have tested the compiled branch and it seems to be working as i... Jonathan Cormier

07:54 PM PCB Development: RE: MityDSP-L138F Boot issue, I2C0 (PCB Dev Post)

Jonathan,
We have tested the compiled branch and it seems to be working as intended. We have not noticed any I2C h... Jon Cox

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