Hi,
ti-processor-sdk-rtos-j721e-evm-08_05_00_11
ti-processor-sdk-linux-j7-evm-08_05_00_08-Linux-x86
Which uart is used to output information by default when booting from MCU1_0? If hardware design is not the default one, how to modify in the software?
Hello,
This is the default UART layout on our Common Processor Board:
Usually, the MCU_UART is used by MCU1_0 when booting. But this is dependent on the software.
During the booting phase in UART Boot, ROM has an option to output on either the MUC_UART or WKUP_UART. You can see the selection in the BOOTMODE pins:
In other bootmodes, the UART is setup by the SBL/SPL. You can modify as needed. Please see this FAQ for SBL:
Please let me know if you have specific questions.
Thank you,
Erick
