ESP32, code uploaded from Arduino works, from pio works not

1

Hello,

As stated above, I try to upload the BasicOTA excample, wich works perfectly fine uploaded by Arduino, but the ESP32 fails with a BrownOutDetection failure and resets itself continuously.

Output from the serial terminal:

ets Jun  8 2016 00:22:57

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0010,len:4
load:0x3fff0014,len:588
load:0x40078000,len:0
load:0x40078000,len:9768
entry 0x400789b8
Booting
Wifi_STA

Brownout detector was triggered

ets Jun  8 2016 00:22:57

rst:0xc (SW_CPU_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0010,len:4
load:0x3fff0014,len:588
load:0x40078000,len:0
load:0x40078000,len:9768
entry 0x400789b8
Booting
Wifi_STA

Brownout detector was triggered

And so on…

I noticed that Arduino uses the esptool.exe with the following flags:

C:\Users\<name>\Documents\Arduino\hardware\espressif\esp32/tools/esptool.exe --chip esp32 --port COM15 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_freq 80m --flash_mode dio --flash_size 4MB 0x1000 C:\Users\<name>\Documents\Arduino\hardware\espressif\esp32/tools/sdk/bin/bootloader.bin 0x8000 C:\Users\<name>~1\AppData\Local\Temp\arduino_build_717920/BasicOTA.ino.partitions.bin 0xe000 C:\Users\<name>\Documents\Arduino\hardware\espressif\esp32/tools/partitions/boot_app0.bin 0x10000 C:\Users\<name>~1\AppData\Local\Temp\arduino_build_717920/BasicOTA.ino.bin

and PlatformIO IDE uses esptool.py, but won’t show the arguments used there…
So I’m pretty confused right now and i can’t even find were to edit the flash command…

maybe anyone can help…

cad435

2
  1. Could you provide platformio.ini?
  2. Verbose mode can be enabled via pio run -t upload --verbose
3

Hello,

platformoi.ini:

; PlatformIO Project Configuration File
;
; Build options: build flags, source filter
; Upload options: custom upload port, speed and extra flags
; Library options: dependencies, extra library storages
; Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; Redirecting...

[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino
monitor_baud = 115200

.

well, Im using the IDE and have not really a clue were to enter the commands…
I tried using the “PlatformIO:NewTerminal” option, but there I cant find a “pio” command…

nvm, found it out…
I guess you need theese lines from the verbose output:

Checking program size
text       data     bss     dec     hex filename
417113    74708   26808  518629   7e9e5 .pioenvs\esp32dev\firmware.elf
"c:\users\<name>\.platformio\penv\scripts\python.exe" "C:\Users\<name>\.platformio\packages\tool-esptoolpy@1.20000.0\esptool.py" --chip esp32 elf2image --flash_mode dio --flash_freq 80m --flash_size 4
MB -o .pioenvs\esp32dev\firmware.bin .pioenvs\esp32dev\firmware.elf
esptool.py v2.0-beta1
MethodWrapper(["upload"], [".pioenvs\esp32dev\firmware.bin"])
Auto-detected: COM15
"c:\users\<name>\.platformio\penv\scripts\python.exe" "C:\Users\<name>\.platformio\packages\framework-arduinoespressif32\tools\esptool.py" --before default_reset --after hard_reset --chip esp32 --port
 "COM15" --before default_reset --after hard_reset --baud 115200 write_flash -z --flash_mode dio --flash_freq 80m --flash_size detect 0x1000 "C:\Users\<name>\.platformio\packages\framework-arduinoespress
if32\tools\sdk\bin\bootloader.bin" 0x8000 "E:\_DATEN\<name>\Projekte\Code\PlatformIO\ArduinoOTA_Test_ESP32\.pioenvs\esp32dev\partitions.bin" 0xe000 "C:\Users\<name>\.platformio\packages\framework-ardu
inoespressif32\tools\partitions\boot_app0.bin" 0x10000 .pioenvs\esp32dev\firmware.bin
esptool.py v2.1-beta1
4

Just surfed by… I had the same brownout detector problem.
The ESP32 draws a lot of power, check the voltage level on the 3V3 pin, My guess it’s your PSU is not good enough!
I was using a ESP32 Devkit V1 from doit.am and added an extra Volts in instead of relying on the USB Voltage. Your set up is probably different but you do need more power!

5

Hey there!

Yes, you are right, used my Lapbench PSU with 3.4V and it works…
So arduino SW must disable the BOD or setting the reset-voltage somehow lower, as with the “crappy” 5V voltageregulator, code from Arduino worked just fine all the time…
And I never observed the Voltage, because… Well, it worked just fine :smiley:
(And my sketches are always stable up to this point)

Anyone knows how to do so in PIO?