Hello,
I would like to test booting and running code from QSPI flash in dual I/O mode on the MIMXRT1170-EVK board. I want to depopulate R392 and R385 (IO2/IO3 of U23) and populate R171 and R176 to pull those lines to FLASH_VCC. This means I will only have IO0 and IO1. IO2 will be used as WP# and IO3 will be used as HOLD#/RESET#. I will test XIP with an example project evkmimxrt1170_iled_blinky_cm7.
My questions are:
Do the available flash drivers in MCUXpresso program the flash using 1 I/O or 4 I/O? If 4 I/O, is there a script that does not require all four I/O lines to be used?
Can the serial downloader program the flash without using all 4 I/O lines?
What needs to be changed in the XIP files to use dual I/O for flash read/write?
