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AM2431: Secondary Boot selection

Part Number: AM2431

During Software development I am trying to support in hardware the need to boot from various primary boot locations like  QSPI, No Boot  and UART Boot mode so the development tools will work easily  on the new Hardware platform I am developing.

My question is, when the SW engineers are doing development can the primary boot location and the backup boot location be the same location such that the AM2431 will try the primary and the backup even though they are the same. For example if I had selected the primary to be UART could the Backup be "UART". The reason for this question  is I want to make sure this doesn't cause a problem with the bootloader logic since if the SW developers change dip switch positions it would simplify the dip switch changes between various peripheral boot locations. I could disable the backup boot and select None and this would not be an issue, but I preferred not to do that.

  • Hi, 

    The supported boot modes for AM243x devices are listed in Chapter 4, Table 4.1 ROM Boot Modes in TRM (SPRUIM2C – MAY 2020 – REVISED SEPTEMBER 2021). Snippet here:

    So UART can be used as primary as well as backup boot mode, based on the device used others may also be supported if that peripheral is supported in that device. See Note in the same section.

    Hope this is answers your query. 

    Best Regards, Shiv