J784S4XEVM: Route interrupt from Domain domain to MCU Domain

Jim Zhang

Part Number: J784S4XEVM

Pin AB34 is used as PWM input pin, AB34 belongs to MAIN domain. MCU R5 needs to be able to access TIMER04 registers and receive routed interrupt from TIMER04. How to configure and achieve this

5 months ago

0 Tarun Mukesh Puvvada 5 months ago

TI__Guru 63616 points

Hello,

You can refer the sample examples regarding PWM and inside these examples we have done similar routing in PwmApp_InterruptConfig

/mcusw/mcal_drv/mcal/examples/Pwm/PwmApp_Gpt/soc/j784s4/mcu1_0/PwmApp_Startup.c and

/mcusw/mcal_drv/mcal/examples/Pwm/PwmApp_Epwm/soc/j784s4/mcu1_0/PwmApp_Startup.c

Regards

Tarun Mukesh

0 Jim Zhang 5 months ago in reply to Tarun Mukesh Puvvada

Intellectual 300 points

In the above example, is the app access main domain timer registers from mcu domain ? not just interrupt, we need read tcar registers

0 Tarun Mukesh Puvvada 5 months ago in reply to Jim Zhang

TI__Guru 63616 points

Hello,

Main Domain Registers are accessible directly so need to do any extra routing as such.

Regards

Tarun MUkesh

0 Jim Zhang 5 months ago in reply to Tarun Mukesh Puvvada

Intellectual 300 points

I need use RAT mechanism to access timer registers on MAIN domain ? direct access to main domain timer registers from mcu domain do not make sense for me. The PWM App example provide the direct access example from mcu domain for me ?

0 Tarun Mukesh Puvvada 5 months ago in reply to Jim Zhang

TI__Guru 63616 points

Hello,

We can access Main domain PWM timers without RAT as shown in example .These are peripheral registers and 32 bit addressed so no issue in accessing.

Please raise another E2E query if you want to know more on RAT as the issue description says about interrupt route

J784S4XEVM: Route interrupt from Domain domain to MCU Domain

Regards

Tarun Mukesh

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J784S4XEVM: Route interrupt from Domain domain to MCU Domain

J784S4XEVM: Route interrupt from Domain domain to MCU Domain