TDA4VH-Q1: PROCESSOR-SDK-RTOS-J784S4: define three CIO devices

Frank Roland

Part Number: TDA4VH-Q1

Tool/software:

I need to define three CIO devices (using add_device), and by default there are three available (according to _NDEVICE in file.h).
Since there is a default host device added, I can not use all three but only two.

My question:

- is there a way to disable the default host device (which I assume is used for profiling, which I do not need anyways) or
- can I remove this existing device or
- can I increase the number of devices (besides patching file.h).

over 1 year ago

0 Keerthy J over 1 year ago

TI__Guru**** 162280 points

Hi Frank,

May I know which SDK & which OS is being used? More details will help assign the right expert.

- Keerthy

0 Frank Roland over 1 year ago in reply to Keerthy J

Prodigy 40 points

We use ti-cgt-armllvm_3.2.2.LTS and ti-processor-sdk-rtos-j784s4-evm-09_02_00_05, development is on a Linux system, target is Jacinto R5F MCU, baremetal (no OS).

0 Ki over 1 year ago in reply to Frank Roland

TI__Guru**** 462941 points

I have brought this thread to the attention of the compiler experts.

Thanks

0 George Mock over 1 year ago

TI__Guru**** 249005 points

Frank Roland said:
- is there a way to disable the default host device

Frank Roland said:
- can I remove this existing device

I think this call will do it ...

remove_device("");

That said, we have never tested the C I/O functions in that configuration.

Frank Roland said:
- can I increase the number of devices (besides patching file.h).

Thanks and regards,

-George

0 Frank Roland over 1 year ago in reply to George Mock

Prodigy 40 points

That function, although defined in remove_device.c, is not declared in any header file.
Also, somehow the function definition is missing at link time when we try to use it.

0 George Mock over 1 year ago in reply to Frank Roland

TI__Guru**** 249005 points

Unfortunately, my post about remove_device is incorrect. It cannot be used to remove the default host device. I apologize for the error.

The only way is to increase _NDEVICE in file.h, then rebuild the RTS library. However, we have not documented how to rebuild the RTS library. Therefore, I am forced to conclude we cannot support your request.

Thanks and regards,

-George

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TDA4VH-Q1: PROCESSOR-SDK-RTOS-J784S4: define three CIO devices