I’m using the RT1052 in a system that will boot from QSPI NOR flash or a serial downloader.
(For reference, here are the design files i.MX RT1050 Evaluation Kit|NXP )
My intention is to breakout the following BT_CFG pins to a header so that I can configure the boot.
I want the remaining BT_CFG pins to be at logic 0.
My question is, do I need to pull them down externally?
Page 9, table 9 in the doc below suggests that I must not leave them floating
But I also read that they are, by default, they are pulled low on reset (see page 75, table 70)…
So which one is it, can I leave these pins unconnected and rely on the internal pulldowns, or do I need to connect them to ground externally?
Thanks in advance.