Arduino 3.0.x doesn't work with RMT Legacy Driver
Xylopyrographer opened this issue · comments
Board
ESP32S3 Dev Module
Device Description
ESP32S3 Dev Module with an on-board WS2812 RGB LED on GPIO48.
Hardware Configuration
No
Version
v3.0.1
IDE Name
Arduino IDE 2.3.2
Operating System
Debian 12
Flash frequency
Flash Mode: "QIO 80MHZ"
PSRAM enabled
yes
Upload speed
921600
Description
When using the legacy RMT driver as per:
https://docs.espressif.com/projects/esp-idf/en/v5.1.4/esp32/migration-guides/release-5.x/5.0/peripherals.html#rmt-driver
and when USB CDC On Boot is set to "Disabled" the sketch below runs.
If however USB CDC On Boot is set to "Enabled" the sketch crashes into a boot loop. Crash log is below.
The LiteLED library uses only ESP-IDF calls.
To test, must use the LiteLED v3 development branch at: https://github.com/Xylopyrographer/LiteLED/tree/v1.3
Sketch
// arduino-esp32 core v3.0.1 RMT legacy driver bug
// must use LiteLED v1.3.0-dev at https://github.com/Xylopyrographer/LiteLED/tree/v1.3
#include <LiteLED.h>
#define LED_GPIO 48 // change this number to be the GPIO pin connected to DIN of the matrix panel
#define LED_TYPE LED_STRIP_WS2812
#define LED_TYPE_IS_RGBW 0 // if the LED matrix uses RGBW type LED's, change the 0 to 1
static const uint8_t currBright = 20; // change this to set the brightness level of the matrix
static const crgb_t BLINK_COL = 0x00002f;
LiteLED myDisplay( LED_TYPE, LED_TYPE_IS_RGBW ); // create the LiteLED object
void setup() {
delay( 2000 );
printf( "printf: Sketch in setup()" );
Serial.begin( 115200 );
delay( 2000 );
Serial.println( "Sketch in setup()" );
myDisplay.begin( LED_GPIO, 1, 0 ); // initialze the myDisplay object.
myDisplay.brightness( currBright );
myDisplay.setPixel( 0, BLINK_COL, 1 );
}
void loop() {
// blink a pixel
myDisplay.brightness( 0, 1 );
delay( 1000 );
myDisplay.brightness( currBright, 1 );
delay( 1000 );
}Debug Message
With USB CDC On Boot: "Enabled":
Build:Mar 27 2021
rst:0xc (RTC_SW_CPU_RST),boot:0x8 (SPI_FAST_FLASH_BOOT)
Saved PC:0x40377d1d
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3818,len:0x508
load:0x403c9700,len:0x4
load:0x403c9704,len:0xad0
load:0x403cc700,len:0x29e4
entry 0x403c9880
E (91) rmt(legacy): CONFLICT! driver_ng is not allowed to be used with the legacy driver
abort() was called at PC 0x4200951f on core 0
Backtrace: 0x4037770a:0x3fceb200 0x4037c4bd:0x3fceb220 0x40381f11:0x3fceb240 0x4200951f:0x3fceb2c0 0x4200d166:0x3fceb2e0 0x40377a0f:0x3fceb310 0x403cd852:0x3fceb340 0x403cdafe:0x3fceb380 0x403c98d5:0x3fceb4b0 0x40045c01:0x3fceb570 0x40043ab6:0x3fceb6f0 0x40034c45:0x3fceb710
ESP Exception Decoder
Sketch: S3_RMT_Bug FQBN: esp32:esp32:esp32s3
Backtrace: 0x4037770a:0x3fceb200 0x4037c4bd:0x3fceb220 0x40381f11:0x3fceb240 0x4200951f:0x3fceb2c0 0x4200d166:0x3fceb2e0 0x40377a0f:0x3fceb310 0x403cd852:0x3fceb340 0x403cdafe:0x3fceb380 0x403c98d5:0x3fceb4b0 0x40045c01:0x3fceb570 0x40043ab6:0x3fceb6f0 0x40034c45:0x3fceb710
Decoding stack results
0x4037770a: panic_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/panic.c:466
0x4037c4bd: esp_system_abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/port/esp_system_chip.c:84
0x40381f11: abort at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/newlib/abort.c:38
0x4200951f: check_rmt_legacy_driver_conflict at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/driver/deprecated/rmt_legacy.c:1380
0x4200d166: start_cpu0_default at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/esp_system/startup.c:205
0x40377a0f: call_start_cpu0 at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/xtensa/include/xt_utils.h:40
Other Steps to Reproduce
Crash occurs whenever USB CDC On Boot is enabled, regardless of other USB settings and whether PSRAM is enabled or not.
Serial monitor output with Core Debug Level: "Debug" and USB DFU On Boot: "Disabled":
ESP-ROM:esp32s3-20210327
Build:Mar 27 2021
rst:0x1 (POWERON),boot:0x8 (SPI_FAST_FLASH_BOOT)
SPIWP:0xee
mode:DIO, clock div:1
load:0x3fce3818,len:0x508
load:0x403c9700,len:0x4
load:0x403c9704,len:0xad0
load:0x403cc700,len:0x29e4
entry 0x403c9880
[ 310][I][esp32-hal-psram.c:90] psramInit(): PSRAM enabled
=========== Before Setup Start ===========
Chip Info:
------------------------------------------
Model : ESP32-S3
Package : 0
Revision : 1
Cores : 2
Frequency : 240 MHz
Embedded Flash : No
Embedded PSRAM : No
2.4GHz WiFi : Yes
Classic BT : No
BT Low Energy : Yes
IEEE 802.15.4 : No
------------------------------------------
INTERNAL Memory Info:
------------------------------------------
Total Size : 405836 B ( 396.3 KB)
Free Bytes : 378016 B ( 369.2 KB)
Allocated Bytes : 23044 B ( 22.5 KB)
Minimum Free Bytes: 372968 B ( 364.2 KB)
Largest Free Block: 335860 B ( 328.0 KB)
------------------------------------------
SPIRAM Memory Info:
------------------------------------------
Total Size : 2097152 B (2048.0 KB)
Free Bytes : 2095104 B (2046.0 KB)
Allocated Bytes : 0 B ( 0.0 KB)
Minimum Free Bytes: 2095104 B (2046.0 KB)
Largest Free Block: 2064372 B (2016.0 KB)
Bus Mode : QSPI
------------------------------------------
Flash Info:
------------------------------------------
Chip Size : 8388608 B (8 MB)
Block Size : 65536 B ( 64.0 KB)
Sector Size : 4096 B ( 4.0 KB)
Page Size : 256 B ( 0.2 KB)
Bus Speed : 80 MHz
Bus Mode : QIO
------------------------------------------
Partitions Info:
------------------------------------------
nvs : addr: 0x00009000, size: 20.0 KB, type: DATA, subtype: NVS
otadata : addr: 0x0000E000, size: 8.0 KB, type: DATA, subtype: OTA
app0 : addr: 0x00010000, size: 1920.0 KB, type: APP, subtype: OTA_0
app1 : addr: 0x001F0000, size: 1920.0 KB, type: APP, subtype: OTA_1
spiffs : addr: 0x003D0000, size: 128.0 KB, type: DATA, subtype: SPIFFS
coredump : addr: 0x003F0000, size: 64.0 KB, type: DATA, subtype: COREDUMP
------------------------------------------
Software Info:
------------------------------------------
Compile Date/Time : Jun 14 2024 17:26:18
Compile Host OS : linux
ESP-IDF Version : v5.1.4-51-g442a798083-dirty
Arduino Version : 3.0.1
------------------------------------------
Board Info:
------------------------------------------
Arduino Board : ESP32S3_DEV
Arduino Variant : esp32s3
Arduino FQBN : esp32:esp32:esp32s3:UploadSpeed=921600,USBMode=hwcdc,CDCOnBoot=default,MSCOnBoot=default,DFUOnBoot=default,UploadMode=default,CPUFreq=240,FlashMode=qio,FlashSize=8M,PartitionScheme=min_spiffs,DebugLevel=debug,PSRAM=enabled,LoopCore=1,EventsCore=1,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default
============ Before Setup End ============
Sketch in setup()
=========== After Setup Start ============
INTERNAL Memory Info:
------------------------------------------
Total Size : 405836 B ( 396.3 KB)
Free Bytes : 375564 B ( 366.8 KB)
Allocated Bytes : 25096 B ( 24.5 KB)
Minimum Free Bytes: 370516 B ( 361.8 KB)
Largest Free Block: 335860 B ( 328.0 KB)
------------------------------------------
SPIRAM Memory Info:
------------------------------------------
Total Size : 2097152 B (2048.0 KB)
Free Bytes : 2094844 B (2045.7 KB)
Allocated Bytes : 244 B ( 0.2 KB)
Minimum Free Bytes: 2094844 B (2045.7 KB)
Largest Free Block: 2064372 B (2016.0 KB)
------------------------------------------
GPIO Info:
------------------------------------------
GPIO : BUS_TYPE[bus/unit][chan]
--------------------------------------
43 : UART_TX[0]
44 : UART_RX[0]
============ After Setup End =============
I have checked existing issues, online documentation and the Troubleshooting Guide
- I confirm I have checked existing issues, online documentation and Troubleshooting guide.
Does it also happen if you use this: https://github.com/espressif/arduino-esp32/blob/master/cores/esp32/esp32-hal-rgb-led.h#L14
Short answer is yes, using neopixelWrite() works with USB CDC On Boot either Enabled or Disabled.
Real question is why does Enabling USB CDC On Boot crash the legacy RMT driver at runtime while Disabling USB CDC On Boot does not?