Unlimited restart of esp32c3 under version 2.0.3

[WishToo]

Board

ESP32C3

Device Description

AirM2M_CORE_ESP32C3

Hardware Configuration

esp32-c3-devkitm-1

Version

v2.0.3

IDE Name

Arduino IDE

Operating System

macOS 12.2.1

Flash frequency

40MHz & 80MHz

PSRAM enabled

no

Upload speed

921600

Description

Infinite restart always occurs when testing any simple example

I have made the following settings, but the problem still exists：
USB CDC On Boot: Enabled
Flash Mode: DIO

Sketch

#include <Arduino.h>
void setup()
{
  Serial.begin(115200);
  Serial.println("test msg");
  // put your setup code here, to run once:
  pinMode(13, OUTPUT);
  pinMode(12, OUTPUT);
  digitalWrite(12, LOW);

}

void loop()
{
  // put your main code here, to run repeatedly:

  digitalWrite(13, digitalRead(13) == HIGH ? LOW : HIGH);
  digitalWrite(12, digitalRead(12) == HIGH ? LOW : HIGH);
  Serial.println("test msg");
  delay(1000);
}

Debug Message

ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x3 (RTC_SW_SYS_RST),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x40381782
SPIWP:0xee
mode:DIO, clock div:2
load:0x3fcd6100,len:0x38c
load:0x403ce000,len:0x6a8
load:0x403d0000,len:0x2358
SHA-256 comparison failed:
Calculated: 4bd624aff3257f126bd68f521ac53163cd7fe48cae8d3a77a847ef36aa76ad41
Expected: 2dd871cd993fccdf87b5ef3c78d949bd29ad8f4d97ecb130ff4297267fa0ddbe
Attempting to boot anyway...
entry 0x403ce000
ESP-ROM:esp32c3-api1-20210207
Build:Feb  7 2021
rst:0x3 (RTC_SW_SYS_RST),boot:0xc (SPI_FAST_FLASH_BOOT)
Saved PC:0x40381782
SPIWP:0xee
mode:DIO, clock div:2
load:0x3fcd6100,len:0x38c
load:0x403ce000,len:0x6a8
load:0x403d0000,len:0x2358
SHA-256 comparison failed:
Calculated: 4bd624aff3257f126bd68f521ac53163cd7fe48cae8d3a77a847ef36aa76ad41
Expected: 2dd871cd993fccdf87b5ef3c78d949bd29ad8f4d97ecb130ff4297267fa0ddbe

Other Steps to Reproduce

No response

I have checked existing issues, online documentation and the Troubleshooting Guide

• I confirm I have checked existing issues, online documentation and Troubleshooting guide.

[lbernstone]

Check the pinmap. There is no gpio12 & 13 on a C3.

[WishToo]

Developing on-board LEDs is gpio12 &13

[lbernstone]

gpio 12-17 are used for the spi flash. If you want your device to work, I would recommend not developing on-board LEDs on gpio 12 & 13.

[chenxuuu]

gpio 12-17 are used for the spi flash. If you want your device to work, I would recommend not developing on-board LEDs on gpio 12 & 13.

@lbernstone it use DIO mode, not QIO

[WishToo]

gpio 12-17 are used for the spi flash. If you want your device to work, I would recommend not developing on-board LEDs on gpio 12 & 13.

@lbernstone it use DIO mode, not QIO

I have used DIO mode

[chenxuuu]

DIO mode does not use gpio12 and gpio13, so it doesn't matter

it is a bug

if you flash esp32c3 with USB-CDC and use 2.0.3 version of arduino-esp32, it won't boot. but 2.0.2 is ok.

i tested it

[WishToo]

DIO mode does not use gpio12 and gpio13, so it doesn't matter

it is a bug

if you flash esp32c3 with USB-CDC and use 2.0.3 version of arduino-esp32, it won't boot. but 2.0.2 is ok.

i tested it

Yes, Arduino 2.0.2 works normally, but the status value of the IO port cannot be read. It is always low, so I am confused now

[lbernstone]

see #6572

[Jason2866]

Still using GPIOs which are normaly used for connecting Flash is a bad design idea.
You never know what changes future brings...

[chenxuuu]

Still using GPIOs which are normaly used for connecting Flash is a bad design idea. You never know what changes future brings...

bad idea: arduino not work, others works well😀

a funny joke

[lbernstone]

You need to set the pinmode to input if you want to read.

[11wanqin]

Still using GPIOs which are normaly used for connecting Flash is a bad design idea. You never know what changes future brings...

bad idea: arduino not work, others works well😀

a funny joke

I meet same problem when i use the luatos board;you can try to use platfomio , The Espressif 32 5.00 frameworks can
work well on this demo board, but you should to change the "esp32-c3-devkitm-1.json"'s "flash_mode" to "dio";everything work well after i do this.

[me-no-dev]

problem is that C3 DIO mode does not work in 2.0.3, but it will work in 2.0.4 that will be released today. I guess PIO guys will also release their update these days and you will be OK. Till then "flash_mode":"qio"

[VojtechBartoska]

@WishToo Can you please retest your code under v2.0.4? Thanks.

[WishToo]

@WishToo Can you please retest your code under v2.0.4? Thanks.

Thank you very much. I just tested it. Under version 2.0.4, this development board can be used normally

[spilz87]

Hi

I'm just trying to used these pins too on a ESP32 c3 but I got the restart all the time :(

Using ESP32 2.0.4

Which pins can be used ?
Which way ? Input / output ?

I tried DIO and QIO but doesn't solve :(

Thanks in advance for you help

[spilz87]

ESP32 C3
On Arduino IDE
With 2.0.4
With DIO

I'm only able to set GPIO12 and GOIO13 in OUTPUT mode.

Setting other pins GPIO14-17 makes it restart.
Setting in INPUT mode makes it restart

So no way to use other pins and only in output

Is it normal ???

Thanks for your help

[beachmiles]

I too was getting infinite reboots with the AirM2M_CORE_ESP32C3 board, the only fix for me was enabling USB CDC On Boot.

[thilojaeggi]

Using 2.0.6 DIO works while QIO doesn't.

[Jason2866]

@thilojaeggi was a bug in core 2.0.3 solved later. Verified working in latest core.