TDA4VM: TDA4VM Resource sharing issues

peitao liu

Part Number: TDA4VM

Tool/software:

hello all

I understand that we have three domains (main, wakeup, and MCU), each with their own peripheral resources (GPIO, UART, I2C, etc.). I'd like to know:

Is it possible to access main domain peripherals (like I2C, GPIO) from other domains?
What's the procedure for cross-domain resource access?
Specifically, how can MCU domain resources be accessed from the main domain?"

Is there any relevant documentation available?

ths

1 month ago

0 Brijesh Jadav 1 month ago

TI__Guru**** 449575 points

Hi Liu,

Most of the resource's registers are memory mapped, so yes, cross domain access is possible and that way its possible to access MCU domain peripherals on Main domain.

Regards,

Brijesh

0 peitao liu 1 month ago in reply to Brijesh Jadav

Intellectual 430 points

hello Brijesh

Can you demonstrate how to use the I2C(main domain) in MCU domain

0 Brijesh Jadav 1 month ago in reply to peitao liu

TI__Guru**** 449575 points

Hello Liu,

Its simple, you can try accessing I2C registers and if they are accessible, you can use I2C driver to configure and do transaction over i2c.

Regards,

Brijesh

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TDA4VM: TDA4VM Resource sharing issues