Memory Map CYW20735 - (Part 2: SPI Flash location)

[mnemonicservice]

I got the excellent answer for my initial question @ https://community.cypress.com/t5/Wireless/CYW20735-Memory-Map/m-p/276969#M566

But I am still in doubt where the SPI Flash range is mapped to. From the moderator's answer to my previous post I understood that the map at https://community.cypress.com/t5/Resource-Library/CYW20719-Memory-Layout/ta-p/246353 differs slightly from the one in CYW20735 since the latter does not have onboard Flash, only external SPI Flash.

Is the external SPI Flash also mapped to 0x0050_0000, going up to whatever address needed to cover the size of the external SPI Flash (ex: 4MB SPI Flash: 0x0050_0000 - 0x0090_0000)?

Thank you

[BragadeeshV · Accepted solution]

Hi @mnemonicservice ,

The flash starting address is mentioned in the linker script:

The CYW20735 eval board has a 1MB serial flash device in it, therefore the length is updated as 0x100000. Please check the CYW20735 eval board user guide for the serial flash used in the eval board.

https://www.cypress.com/file/428486/download