TDA4VM: Change UART instance to MAIN_UART1 seems not work

Hi,

Could you please give us some support on this ticket?

Many thanks,

Mònica

Hi Mònica

Are you testing on the evm ?

Can you summarise which UART instance you want for MPU and MCU2_1

Yes, we are using EVM.

No restriction, we only want use different instance for MCU2_1 and MPU1. The great solution is having one UART manin for each core in main domaint.

Thanks

Hi Pablo 

You can take the reference form the ethfw code 

path ethfw/apps/app_remoteswitchcfg_server/mcu_2_0/main.c 

Here we use main domain 2 uart instance for logs.

Regards
Diwakar

Thanks Diwakar.

Currently, as probe of concept, I would like to get UART messages for ipc_rtos_echo_test_freertos running in mcu2_1. Then, I compile in debug mode:

make ipc_rtos_echo_test_freertos CORE=mcu2_1 BUILD_PROFILE=debug

I have changed make file to define  ENABLE_UART_PRINT and I have set gBoardInitParams = {BOARD_UART1_INSTANCE, BOARD_UART_SOC_DOMAIN, BOARD_PSC_DEVICE_MODE_NONEXCLUSIVE,
BOARD_MAIN_CLOCK_GROUP_ALL, BOARD_MCU_CLOCK_GROUP_ALL};

Board_uartStdioInit is called, but returns -1

The reason is because uartBaseAddr obtained with the initParams is 0. 

Debbuging I observe that domain is "2":

So, no UART base address is defined for that index:

This domain value is comming from precompilation condition:

Why the domain is selected to MCU instead of MAIN?

Please, I would appreciate you can provide solution to use UART for this example (I would port solution to any other project).

Many thanks

Hi Pablo 

Can you share the changes which you did so far so that we can review them and do changes on to of that .

Regards
Diwakar

Pablo Varela said:

This domain value is comming from precompilation condition:

I was asking why this macro is defined in SDK?

When conmpiled, this precompilation condition forces UART_SOC_DOMAIN to MCU, and then only UART0 can be used. If I comment this precompilation condition, then UART_SOC_DOMAIN is MAIN domain and I can use (and tested works) other UARTS.

Thanks