xtensa-esp32-elf toolchain has following linker scripts. What is each for? Could somebody help to find the correct file to use (to build) a application for direct execution from flash? ~/esp_toolchain/xtensa-esp32-elf/lib/ldscripts$ ls elf32xtensa.x elf32xtensa.xd elf32xtensa.xn elf32xtensa.xsc elf3...

I misunderstood the logs to be resetting, but with no issues, I can run gdb.
This is resolved.

Hi, When I tried to hook through openocd into ESP_WROVER kit v4.1, I could n't. logs below bin/openocd -s share/openocd/scripts -f interface/ftdi/esp32_devkitj_v1.cfg -f board/esp32-wrover.cfg Open On-Chip Debugger 0.10.0-dev (2018-11-05-04:03) Licensed under GNU GPL v2 For bug reports, read http://...

Yes, to interrupt normal boot and update firmware/OS, but NOT necessarily through UART.

To update OS and firmware.

Is there any port of U-Boot on ESP WROVER KIT?

If not, how to get help from espressif to do this?

Hi ESP, Thanks for the reply. The link seems to be work in progress and specific to IDF. The link says, First stage bootloader in ROM loads the second stage bootloader from FLASH (from offset 0x1000) into RAM and execute. First 4kB sector of flash is used to store secure boot IV and signature of the...

I see a bootloader binary with esptool.py and it should be the secondary bootloader apart from ROM boot loader.
Now, I just want to know which address the primary(ROM boot loader) jumps to after execution?
If I want to put my own secondary bootloader where should I place it and which address?