irsnd_send_data() crashes ESP32

[sej7278]

I can't seem to get sending to work on ESP32's - either my own sketch or the SimpleSender.ino example.

Software: Arduino IDE 1.8.13 and arduino-cli 0.13, using esp32 devkit board definition: fqbn=esp32:esp32:esp32:PSRAM=disabled,PartitionScheme=default,CPUFreq=240,FlashMode=qio,FlashFreq=80,FlashSize=4M,UploadSpeed=921600,DebugLevel=none

Hardware: TTGO T Display and TTGO T7 mini.

It crashes as soon as you call irsnd_send_data(&irsnd_data, false);

START /tmp/arduino_modified_sketch_602015/SimpleSender.ino from Sep 22 2020
Using library version 3.2.0
Ready to send IR signals at pin 4
Send 0xFB04
Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
Core 1 register dump:
PC      : 0x400ea743  PS      : 0x00060130  A0      : 0x800d0cbc  A1      : 0x3ffb1f10  
A2      : 0x00000000  A3      : 0x3f400fdb  A4      : 0xa5f310fd  A5      : 0x3ffc04d0  
A6      : 0x00ff0000  A7      : 0xff000000  A8      : 0x800d29a1  A9      : 0x3ffb1f00  
A10     : 0x00000002  A11     : 0x3f400fdb  A12     : 0x00000002  A13     : 0x0000ff00  
A14     : 0x00ff0000  A15     : 0xff000000  SAR     : 0x0000000a  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x400014fd  LEND    : 0x4000150d  LCOUNT  : 0xffffffff  

Backtrace: 0x400ea743:0x3ffb1f10 0x400d0cb9:0x3ffb1f30 0x400d149b:0x3ffb1f50 0x400d20d1:0x3ffb1f80 0x400d2ea7:0x3ffb1fb0 0x40088381:0x3ffb1fd0

Rebooting...
ets Jun  8 2016 00:22:57

According to EspExceptionDecoder this translates to:

PC: 0x400ea743: timerAlarmRead at /home/simon/.arduino15/packages/esp32/hardware/esp32/1.0.4/cores/esp32/esp32-hal-timer.c line 103
EXCVADDR: 0x00000000

Decoding stack results
0x400ea743: timerAlarmRead at /home/simon/.arduino15/packages/esp32/hardware/esp32/1.0.4/cores/esp32/esp32-hal-timer.c line 103
0x400d0cb9: storeIRTimer() at /home/simon/programming/c++/arduino/libraries/IRMP/src/IRTimer.cpp.h line 334
0x400d149b: irsnd_send_data(IRMP_DATA*, uint8_t) at /home/simon/programming/c++/arduino/libraries/IRMP/src/irsnd.c.h line 1705
0x400d20d1: setup() at /tmp/arduino_modified_sketch_55627/SimpleSender.ino line 87
0x400d2ea7: loopTask(void*) at /home/simon/.arduino15/packages/esp32/hardware/esp32/1.0.4/cores/esp32/main.cpp line 14
0x40088381: vPortTaskWrapper at /home/runner/work/esp32-arduino-lib-builder/esp32-arduino-lib-builder/esp-idf/components/freertos/port.c line 143

Line 87 of the sketch is is irsnd_send_data(&irsnd_data, false);

Even tried 3.2.1 from git and it made no difference.

Receiving works excellently thanks (something that never worked with IRRemote!)

P.S. the ESP32 cores don't seem to define LED_BUILTIN so the sketches won't compile even if you set irmp_irsnd_LEDFeedback(false); until you define it in your sketch, that's probably more a bug with the cores, but it may be useful to have a default define or ignore if feedback is false in your lib?

[ArminJo]

Thanks a lot for opening the issue and the stacktrace. 🥇 The first was a bug, and your P.S. pointed to a design flaw, I corrected. I built a new release including this bugfix.

[sej7278]

excellent thanks, 3.2.2 works well now - i just made the volume go up on my tv using the code i had read using the library!

next to make a read+write ir "proxy" with a tft display and webserver with a proper pcb and 3d printed case.

[ArminJo]

Interesting project! Please send me some pictures if you are finished. And maybe I can put a link to it in the readme.

[sej7278]

i certainly will, might be a while yet though ;-)