XIP with multiple NOR Flash devices on FlexSPI

[Flo1989]

Hello,

Our Setup:

i.MXRT1176

IS25LP01G Flash Devices with 1Gbit / 128Mb

We use it in individual Mode. I expected that i can access Flash A2 via address 0x38000000. A1 Range will be 0x30000000 to 0x37FFFFFF.

We connected four NOR Flash Devices on FlexSPI Port A1/A2/B1/B2. I am only able to access A1 via XIP. Try to Read via memcpy at the Address 0x38100000, which should be Chip on A2, i get values of 0x30100000 from Chip on A1. It seems XIP does not support multiple Chips? I am right?

I took a example from flexspi_nor_flash_polling and added Port selection. I can Program values to the A2 Chip. B1/B2 not tested yet.

Is it otherwise possible?

Thank you,

Florian

[jeremyzhou · Accepted solution]

Hi,
Thank you for your interest in NXP Semiconductor products and for the opportunity to serve you.
1) It seems Xp does not support multiple Chips?
-- No, you can access the other chips other than the A1 via the AHB bus.
Have a great day,
TIC

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[lgx]

Hi jeremyzhou,
I could understand that access A1 flash using XIP mode, and access A2 flash using AHB interface. After access A2 flash (need initialize flexSPI interface), Does need i reconfigure flexSPI to access A1 flash using XIP mode