XIP with multiple NOR Flash devices on FlexSPI

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XIP with multiple NOR Flash devices on FlexSPI

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Flo1989
Contributor III

Hello,

Our Setup:

i.MXRT1176

IS25LP01G Flash Devices with 1Gbit / 128Mb

Flo1989_0-1660916096378.pngFlo1989_1-1660916152839.png

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

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jeremyzhou
NXP Employee
NXP Employee

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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998件の閲覧回数
jeremyzhou
NXP Employee
NXP Employee

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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Note:
- If this post answers your question, please click the "Mark Correct" button. Thank you!

 

- We are following threads for 7 weeks after the last post, later replies are ignored
Please open a new thread and refer to the closed one, if you have a related question at a later point in time.
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lgx
Contributor I
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
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