Search found 8 matches

by benvinkorea
Fri Feb 22, 2019 12:47 am
Forum: General Discussion
Topic: esp32 linker script to build a app for direct execution from flash
Replies: 1
Views: 215

esp32 linker script to build a app for direct execution from flash

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...
by benvinkorea
Wed Feb 13, 2019 6:25 am
Forum: General Discussion
Topic: openocd configuration for ESP_WROVER kit
Replies: 1
Views: 205

Re: openocd configuration for ESP_WROVER kit

I misunderstood the logs to be resetting, but with no issues, I can run gdb.
This is resolved.
by benvinkorea
Wed Feb 13, 2019 1:34 am
Forum: General Discussion
Topic: openocd configuration for ESP_WROVER kit
Replies: 1
Views: 205

openocd configuration for ESP_WROVER kit

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://...
by benvinkorea
Tue Feb 12, 2019 4:13 am
Forum: General Discussion
Topic: U-Boot port for expressif ESP_WROVER_KIT
Replies: 5
Views: 462

Re: U-Boot port for expressif ESP_WROVER_KIT

Yes, to interrupt normal boot and update firmware/OS, but NOT necessarily through UART.
by benvinkorea
Tue Feb 12, 2019 1:52 am
Forum: General Discussion
Topic: U-Boot port for expressif ESP_WROVER_KIT
Replies: 5
Views: 462

Re: U-Boot port for expressif ESP_WROVER_KIT

To update OS and firmware.
by benvinkorea
Mon Feb 11, 2019 7:39 am
Forum: General Discussion
Topic: U-Boot port for expressif ESP_WROVER_KIT
Replies: 5
Views: 462

U-Boot port for expressif ESP_WROVER_KIT

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

If not, how to get help from espressif to do this?
by benvinkorea
Wed Jan 30, 2019 5:39 am
Forum: General Discussion
Topic: What is the boot sequence of esp_wrover_kit?
Replies: 3
Views: 387

Re: What is the boot sequence of esp_wrover_kit?

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...
by benvinkorea
Mon Jan 28, 2019 8:13 am
Forum: General Discussion
Topic: What is the boot sequence of esp_wrover_kit?
Replies: 3
Views: 387

What is the boot sequence of esp_wrover_kit?

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?

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