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[saranbabu]

Hello Team,

I would like to thank for your great support for the queries.  I'm having doubts in following two questions,

1) How to do the block erase using ROM API?, it is taking quite long time for erase the flash memory before write the application image.

2) Please find the attached hex file,  jump is not happening for this hex file, I've verified the written data, it has parsed the data and write it correctly into the memory, but jump is not happening for this file, kindly let me know the reason behind this problem?

Note: Jump is happening for SDK example projects.

[Alice_Yang · Accepted solution]

Hello @saranbabu 

1) About flash erase ROM API, there are two: flexspi_nor_flash_erase_sector() and  flexspi_nor_flash_erase_all (), if you want to full chip erase, can use the second.

2) Just from hex file, can not know the issue. How do you jump is not happening?

About secondary bootloader, recommend first refer below AN:

https://www.nxp.com.cn/docs/en/application-note/AN12604.pdf  

BR

Alice