ESP32 Forum

Hi everybody,

I have bought a development board from espressif (ESP32_Core_board_v2). I have installed the SDK and ESP-IDF framework.

I follow all the guides and I compiled the esp-idf-template project (from github). Then I downloaded the firmware using "ESP download tool v3.4.4" (see the screenshot attached).

However the device seems blocked and loop this informations:

ets Jun 8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0x00
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:QIO, clock div:2
load:0x3ffc0000,len:0
load:0xffff0e00,len:-1
1162 mmu set 00010000, pos 00010000

I have searched in the forum and on github issue but I was not able to solve it..so, where did I wrong? ho to solve?

Thanks.

The ESP-WROOM32 module on the Core Boards currently only supports DIO flash mode. Change the flash mode in "make menuconfig" under "Serial Flasher Config" from QIO to DIO, run make tho rebuild, then re-flash. If using the GUI flasher tool, this option may also need to be changed from QIO to DIO.

(Note that in very recent esp-idf master branch versions, the partition table offset has also changed from 0x4000 to 0x8000. So if you get a subsequent error about partition table, try changing this value in the GUI flasher. If you use the command line "make flash" then it will be changed automatically.)

Thank you for reply

I changed the SPI MODE to DIO and setup the partition table to 0x8000 and it works.

I have the same issue, did you ever solve this?

onehorse wrote:I have the same issue, did you ever solve this?

davdav wrote: I changed ..... and it works.

yes.

if you mean your other post

it would very helpfull, if you post your shematic in the other post how you changed things on connected flash.
without this there is a puzzle what fails.

if you not use your own designed board and you have the fails,
would helpfull, if you post your used board too.

btw helpfull will be too:
which IDE you use?
Arduino IDE,
Eclipse with ESP-IDF
others.

and how you have tried to flash?
esptool.py
windows flash tool
others.

not sure - have you seen it :
you can select "SpiAutoSet" and "DoNotChgBin"
the flash tool have a lookup to your connected Flash
and select it auto

thanks
best wishes
rudi

I am using the Arduino IDE, but i also tried the ESP flash tool and i cannot detect a mac address even though the chip sync is OK. I don't have the firmware files though for the flash tool. Where can i find these?

onehorse wrote:I am using the Arduino IDE, but i also tried the ESP flash tool and i cannot detect a mac address even though the chip sync is OK. I don't have the firmware files though for the flash tool. Where can i find these?

you can not detect a mac address?
please try again, do not select a file to download
check true the "SpiAutoSet" and "DoNotChgBin"
select your baudrate 115200 ( for this test )
select your com port
hold pressed button 0 ( GPIO 00 to GND )
press start
and you get no mac address?

best wishes
rudi

Correct, no mac address...