Hello Lazarman, thank you for your answer.

For now, i'm not able to test the software in BAREMETAL or with RTOS on A15 
as I still didn't receive my XDS110 debugger... I also posted the same 
question on TI E2E forum...

Le jeudi 22 octobre 2020 18:43:18 UTC+2, lazarman a écrit :
>
> Just a guess CCS DSP examples use a gel script to configure the ARM keep 
> it from interfering until your code is debugged. Then you load the binary 
> from ARM and start DSP. My experience on similar SOC was using an RTOS on 
> ARM not Linux so I can't help.
>
> This seems to be saying oops 2 people want same resources.Custom Error: 
> MASTER DSP1_MDMA TARGET L4_PER1_P3".
>
> I'm always amazed when people ask questions in this forum about something 
> supported by TI E2E forum is SDK. The comments your going to get come from 
> user's that don't use CCS or JTAG.
>
> Good luck
>
> Sent from Yahoo Mail on Android 
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>
> On Thu, Oct 22, 2020 at 11:30 AM, [email protected] <javascript:>
> <[email protected] <javascript:>> wrote:
> Hello everyone,
>
> I recently started developping on the BeagleBone AI, I would like to use 
> the DSP for interfacing with an AUDIO CODEC which has to be configured 
> through I2C. My board is running the official Debian image for BBAI. 
>
> I'm programming the DSP firmware using CCS and I load the image on the DSP 
> using remoteproc as proposed by TI. I started by following tutorial in the 
> Linux Processor SDK explaining how to program a remotecore for use with A15 
> (host) under Linux.
>
> I simply tried to use the I2C_TemperatureSensor example to communicate 
> with a simple external micro-controller but I face multiple errors:
>
> -If I try to use the I2C instance 3 or 4, dmesg reports "L3 Custom Error: 
> MASTER DSP1_MDMA TARGET L4_PER1_P3". 
> -If I try to use the I2C instance 5, dmesg doesn't report anything, but 
> nothing happens on the I2C instance 5.
>
> Note: I disabled all unused I2C instances (2-3-4-5) in the device tree
>
> Does anyone have an idea ? Did anyone already succeed in getting I2C 
> working on the DSP with Linux on A15 ? 
>
> Thank you.
>
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