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PROCESSOR-SDK-AM64X: Using main domain UART from m4f

Part Number: PROCESSOR-SDK-AM64X
Other Parts Discussed in Thread: SYSCONFIG

Hello Team,

I want to know if it is possible to use UART0 from the main domain within the m4f context (mcu domain).
It seems Sysconfig disables all main domain peripherals for a cortex-M4. Can you please explain?

Regards,

   Benjamin

  • Hi Benjamin,

    According to the Table 12-607 and Figure 12-236, the MAIN_UART0 is for main domain only. It is on CMASS0 bus, while MCU_UART0 is for MCU domain only. It is on MCU_CBASS0 bus.

    According to the section 1.4 of TRM, it is for the purpose of isolating the MCU island from faults in the rest of the SoC.

    Best regards,

    Ming