at25_main.c is probably not such a good example: It writes a hex file to AT25 FLASH and the ROM bootloader will boot from the AT25 on the next reset.
boards/arm/sama5d4-ek/src/dram_main.c is another little bootloader: It loads a hex file from serial in SDRAM and executes it. You need to load from an SD card, not serial. On Tue, Dec 15, 2020 at 11:09 AM Gregory Nutt <spudan...@gmail.com> wrote: > You might have to write a tiny bootloader. For example like > boards/arm/sama5d4-ek/src/at25_main.c that boots from AT35 serial FLASH > on a SAMA5D4 board. > > On 12/15/2020 10:55 AM, Вадим Ястребов wrote: > > Hello, > > > > I am trying to create a bootable image using Secure Provisioning Tools > by NXP to boot NuttX from SD Card. I would like to have everything copied > to internal RAM. I am using flash.ld from nsh configuration for RT1060 > where I changed every section to reside in sram. > > > > Secure Provisioning Tools program is showing me that the starting > address is 0x20202000 which sounds about right according to manual. > Unfortunately, after flashing, NuttX doesn’t boot (no LEDs blinkinging, > nothing). > > > > I have a working blinky LED example from MCUXpresso which boots from the > SDCard. > > Also, I have working NuttX which boots off the internal flash. > > > > Does anyone have any suggestions on how this can be achieved? > > Also, do I need the .boot_hdr section in the NuttX linker script? I am > asking because I am not planning to boot from QSPI flash. > > > > Thank you for your time! > > > > Regards, > > Vadim Yastrebov > > > > > > >
