For the 「KW45B41Z83AFPAR」, the 「BOOT_CONFIG」 pin is set to Hi at BOOT, but do you need an external pulldown during normal operation?
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Hi @kkobayashi1 ,
We believe that if the BOOT_CONFIG pin is left open (not connected to a defined logic level), it will likely float and transition between high and low voltage levels unpredictably.
So, it should better pull-up or pull-down definitely.
Best regards,
Gavin
Thank you for your reply.
If the BOOT _ CONFIG pin is Open, will it recognize "H" or "L" at startup?
Hi @kkobayashi1 ,
We believe that if the BOOT_CONFIG pin is left open (not connected to a defined logic level), it will likely float and transition between high and low voltage levels unpredictably.
So, it should better pull-up or pull-down definitely.
Best regards,
Gavin
Hi @kkobayashi1 ,
Thanks for contacting NXP support.
After the board boots, we should keep the [BOOT_CONFIG] pin unchanged, no external pull-down is required.
Best regards,
Gavin