Hi @Ankush_9881 ,
Please help to test this code:
SDK_2_11_1_MIMXRT1170-EVK\boards\evkmimxrt1170\driver_examples\flexspi\nor\polling_transfer\cm7
Run it in RAM, whether you can make it works or not, it don't need to use the .cfx, as don't download to the flash.
After you modify the LUT, and make it works, then we can try to modify the .cfx source code.
To the new QSPI flash chip, you need to enable the QE bit at first, and I have checked your chip QE bit, you can use the polling_transfer directly.
Please test polling_transfer at first, if this works, the default .cfx also should works.
Best Regards,
Kerry