Can't get hardwaretimer alarm to fire in 3.0.x

[BlackysBoss]

Board

ESP32-S2

Device Description

Lolin S2-mini

Hardware Configuration

GPIO 17 (DAC 1) attached to an amplifier.

Version

latest master (checkout manually)

IDE Name

Arduino IDE

Operating System

Windows 11

Flash frequency

No clue, can't select for this board

PSRAM enabled

yes

Upload speed

No clue, can't select for this board

Description

Tried to convert code for the timer from 2.0.17 to the new 3.0.x, but can't get it to work. Even the 'repeat' example in the timerdocs doesn't seem to work.

Sketch

fixedTimerTicks = 4000000 / sound_horn_start.sample_rate;
  
  //V2.0.17 Working
  //fixedTimer = timerBegin(1, 20, true);                        // timer 1, MWDT clock period = 12.5 ns * TIMGn_Tx_WDT_CLK_PRESCALE -> 12.5 ns * 20 -> 250 ns = 0.25 us, countUp
  //timerAttachInterrupt(fixedTimer, &fixedPlaybackTimer, true); // edge (not level) triggered
  //timerAlarmWrite(fixedTimer, fixedTimerTicks, true);          // autoreload true
  //timerAlarmEnable(fixedTimer);                                 // enable
  
  // V3.0.5 Not working, but why?
  fixedTimer = timerBegin(4000000);
  timerAttachInterrupt(fixedTimer, &fixedPlaybackTimer);
  timerAlarm(fixedTimer, fixedTimerTicks, true, 0);         // autoreload true

Debug Message

No error messages, compiles just fine

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.

[VojtechBartoska]

@P-R-O-C-H-Y Please help here with triage as well, thanks!