CODEWITHSUNDEEP
flashstm32externalbootloader
ManishVerma
ManishVerma

Reputation: 1

STM32 Boot from external flash, bootloader for QUADSPI

i need some help over booting from external flash (NOR FLASH) using QUADSPI, problem is i have got very less internal flash and code is of large size hence need an external flash where i can store my code and boot from there only. When i tried directly booting from external flash i found that quadspi is not initialized yet hence no communication with external flash. so what i am thinking is to make a bootloader in internal flash where i only initialize quadspi and then jump to external flash starting address where my code execution starts. please help me in that.

Upvotes: 0

Views: 2219

Answers (2)

0___________
0___________

Reputation: 68034

You need to boot from the internal flash. Initalize the QSPI interface and jump to the code in the external flash. There is no other way.

Upvotes: 1

Hendry Putra Rahadi
Hendry Putra Rahadi

Reputation: 1

try using bootloader, and jump to external flash.

set your app code base addr to ext flash base address.

Upvotes: 0

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