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TMDXEVM3358 EVM-Booting from NOR Flash?

Paul Joseph
Expert 2795 points
Other Parts Discussed in Thread: AM3358

I noticed the EVM has NOR flash on board, but the manual indicates booting from flash is not implementated.

From the TRM, initialization chapter 26, it indicates the AM3358 can boot from flash.  Can you tell me what is prohibiting the EVM from booting from NOR flash?

Is there a not a configuration option through the dip switches to boot from NOR when the 24bit LCD is not being used?  ( I know the use of a 24 bit LCD interface prohibits a NOR flash implementation and that to normally boot from NOr requires a 16 bit LCD interface)

Please advise, thanks!

  • 0
    TI__Intellectual 2725 points

    from http://e2e.ti.com/support/dsp/sitara_arm174_microprocessors/f/791/t/199430.aspx

    The general purpose EVM does not support booting from NOR Flash memory due to pinmux constraints and the need to hold the upper address lines to low states until the GPMC interface and I/O's can be configured to actively drive all the address lines.  See the "Pins Used" section under XIP Memory in the AM335x TRM for more details on the signal requirements for NOR Booting.