NGW "boot select" (J15)

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#1
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Near as I can tell, the "boot select" jumper next to the reset button on the NGW100 does ... nothing documented.

Is that true? What is it intended to do?

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It does nothing, it can be used for an early stage bootloader if you wish to have something less complex than u-boot.

Hans-Christian

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Thanks. Sometimes a "boot select" mode affects initial memory mappings, like whether address zero refers to an on-chip mask ROM or instead an external NOR flash. Here it seems to be just a GPIO that could be used to change behavior of whatever code gets loaded from that NOR flash ... kernel from MMC vs from NOR, etc.

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Correct, AP7000 does not have a boot ROM, so there is no change in hardware. Any users of this pin has to read out the value from the PIO controller.

Hans-Christian