reference-en
reference-en copied to clipboard
Published
20 hours ago •
arduino
arduino
tone(pin, frequency, duration) seems to ignore 'duration' (Nano clone)
On my Nano clone, calling
tone(pin, frequency, duration)
https://www.arduino.cc/reference/en/language/functions/advanced-io/tone/
seems to ignore duration. e.g. changing the https://www.arduino.cc/en/Tutorial/BuiltInExamples/toneMelody 'loop' to
const uint8_t pinTune = 8;
void loop() {
// slide notes; plays as expected
for (float thisNote = 64.0; thisNote < 4096.0; thisNote *= 1.01) { // 64 - 4096 = 6 octaves, *1.01 = ~70 per octave, ~ 420 notes
tone(pinTune, (int)thisNote);
delay(10);
}
noTone(pinTune);
delay(500);
// slide notes; plays way too fast
for (float thisNote = 64.0; thisNote < 4096.0; thisNote *= 1.01) { // 64 - 4096 = 6 octaves, *1.01 = ~70 per octave, ~ 420 notes
tone(pinTune, (int)thisNote, 10);
}
noTone(pinTune);
delay(1000);
}
Should produce identical glissandos, but produces a 'slow' one (as expected, and then a 'fast' one, which seems to indicate that 'duration' is being ignored (no delay).
Compile & Upload log ..
/home/bryan/git/Arduino/build/linux/work/arduino-builder -dump-prefs -logger=machine -hardware /home/bryan/git/Arduino/build/linux/work/hardware -hardware /home/bryan/.arduino15/packages -tools /home/bryan/git/Arduino/build/linux/work/tools-builder -tools /home/bryan/git/Arduino/build/linux/work/hardware/tools/avr -tools /home/bryan/.arduino15/packages -built-in-libraries /home/bryan/git/Arduino/build/linux/work/libraries -libraries /home/bryan/git/BrewArduino/libraries -fqbn=arduino:avr:nano:cpu=atmega328 -vid-pid=1A86_7523 -ide-version=10814 -build-path /tmp/arduino_build_696342 -warnings=default -build-cache /tmp/arduino_cache_2015 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17 -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17 -prefs=runtime.tools.avr-gcc.path=/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7 -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7 -prefs=runtime.tools.arduinoOTA.path=/home/bryan/.arduino15/packages/arduino/tools/arduinoOTA/1.3.0 -prefs=runtime.tools.arduinoOTA-1.3.0.path=/home/bryan/.arduino15/packages/arduino/tools/arduinoOTA/1.3.0 -verbose /home/bryan/git/BrewArduino/ArduinoSensorsFolder/BuzzersEtcFolder/toneMelody/toneMelody.ino
/home/bryan/git/Arduino/build/linux/work/arduino-builder -compile -logger=machine -hardware /home/bryan/git/Arduino/build/linux/work/hardware -hardware /home/bryan/.arduino15/packages -tools /home/bryan/git/Arduino/build/linux/work/tools-builder -tools /home/bryan/git/Arduino/build/linux/work/hardware/tools/avr -tools /home/bryan/.arduino15/packages -built-in-libraries /home/bryan/git/Arduino/build/linux/work/libraries -libraries /home/bryan/git/BrewArduino/libraries -fqbn=arduino:avr:nano:cpu=atmega328 -vid-pid=1A86_7523 -ide-version=10814 -build-path /tmp/arduino_build_696342 -warnings=default -build-cache /tmp/arduino_cache_2015 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.avrdude.path=/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17 -prefs=runtime.tools.avrdude-6.3.0-arduino17.path=/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17 -prefs=runtime.tools.avr-gcc.path=/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7 -prefs=runtime.tools.avr-gcc-7.3.0-atmel3.6.1-arduino7.path=/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7 -prefs=runtime.tools.arduinoOTA.path=/home/bryan/.arduino15/packages/arduino/tools/arduinoOTA/1.3.0 -prefs=runtime.tools.arduinoOTA-1.3.0.path=/home/bryan/.arduino15/packages/arduino/tools/arduinoOTA/1.3.0 -verbose /home/bryan/git/BrewArduino/ArduinoSensorsFolder/BuzzersEtcFolder/toneMelody/toneMelody.ino
Using board 'nano' from platform in folder: /home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3
Using core 'arduino' from platform in folder: /home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3
Detecting libraries used...
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10814 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR -I/home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3/cores/arduino -I/home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3/variants/eightanaloginputs /tmp/arduino_build_696342/sketch/toneMelody.ino.cpp -o /dev/null
Generating function prototypes...
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -w -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -flto -w -x c++ -E -CC -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10814 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR -I/home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3/cores/arduino -I/home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3/variants/eightanaloginputs /tmp/arduino_build_696342/sketch/toneMelody.ino.cpp -o /tmp/arduino_build_696342/preproc/ctags_target_for_gcc_minus_e.cpp
/home/bryan/git/Arduino/build/linux/work/tools-builder/ctags/5.8-arduino11/ctags -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives /tmp/arduino_build_696342/preproc/ctags_target_for_gcc_minus_e.cpp
Compiling sketch...
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-g++ -c -g -Os -std=gnu++11 -fpermissive -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -Wno-error=narrowing -MMD -flto -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10814 -DARDUINO_AVR_NANO -DARDUINO_ARCH_AVR -I/home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3/cores/arduino -I/home/bryan/.arduino15/packages/arduino/hardware/avr/1.8.3/variants/eightanaloginputs /tmp/arduino_build_696342/sketch/toneMelody.ino.cpp -o /tmp/arduino_build_696342/sketch/toneMelody.ino.cpp.o
Compiling libraries...
Compiling core...
Using precompiled core: /tmp/arduino_cache_2015/core/core_arduino_avr_nano_cpu_atmega328_b379999e9df8609848927a438c5693f3.a
Linking everything together...
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-gcc -Os -g -flto -fuse-linker-plugin -Wl,--gc-sections -mmcu=atmega328p -o /tmp/arduino_build_696342/toneMelody.ino.elf /tmp/arduino_build_696342/sketch/toneMelody.ino.cpp.o /tmp/arduino_build_696342/../arduino_cache_2015/core/core_arduino_avr_nano_cpu_atmega328_b379999e9df8609848927a438c5693f3.a -L/tmp/arduino_build_696342 -lm
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy -O ihex -j .eeprom --set-section-flags=.eeprom=alloc,load --no-change-warnings --change-section-lma .eeprom=0 /tmp/arduino_build_696342/toneMelody.ino.elf /tmp/arduino_build_696342/toneMelody.ino.eep
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-objcopy -O ihex -R .eeprom /tmp/arduino_build_696342/toneMelody.ino.elf /tmp/arduino_build_696342/toneMelody.ino.hex
/home/bryan/.arduino15/packages/arduino/tools/avr-gcc/7.3.0-atmel3.6.1-arduino7/bin/avr-size -A /tmp/arduino_build_696342/toneMelody.ino.elf
Sketch uses 3624 bytes (11%) of program storage space. Maximum is 30720 bytes.
Global variables use 60 bytes (2%) of dynamic memory, leaving 1988 bytes for local variables. Maximum is 2048 bytes.
/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/bin/avrdude -C/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf -v -patmega328p -carduino -P/dev/ttyUSB0 -b115200 -D -Uflash:w:/tmp/arduino_build_696342/toneMelody.ino.hex:i
avrdude: Version 6.3-20190619
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/home/bryan/.arduino15/packages/arduino/tools/avrdude/6.3.0-arduino17/etc/avrdude.conf"
User configuration file is "/home/bryan/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/ttyUSB0
Using Programmer : arduino
Overriding Baud Rate : 115200
AVR Part : ATmega328P
Chip Erase delay : 9000 us
PAGEL : PD7
BS2 : PC2
RESET disposition : dedicated
RETRY pulse : SCK
serial program mode : yes
parallel program mode : yes
Timeout : 200
StabDelay : 100
CmdexeDelay : 25
SyncLoops : 32
ByteDelay : 0
PollIndex : 3
PollValue : 0x53
Memory Detail :
Block Poll Page Polled
Memory Type Mode Delay Size Indx Paged Size Size #Pages MinW MaxW ReadBack
----------- ---- ----- ----- ---- ------ ------ ---- ------ ----- ----- ---------
eeprom 65 20 4 0 no 1024 4 0 3600 3600 0xff 0xff
flash 65 6 128 0 yes 32768 128 256 4500 4500 0xff 0xff
lfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
hfuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
efuse 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
lock 0 0 0 0 no 1 0 0 4500 4500 0x00 0x00
calibration 0 0 0 0 no 1 0 0 0 0 0x00 0x00
signature 0 0 0 0 no 3 0 0 0 0 0x00 0x00
Programmer Type : Arduino
Description : Arduino
Hardware Version: 3
Firmware Version: 4.4
Vtarget : 0.3 V
Varef : 0.3 V
Oscillator : 28.800 kHz
SCK period : 3.3 us
avrdude: AVR device initialized and ready to accept instructions
Reading | ################################################## | 100% 0.00s
avrdude: Device signature = 0x1e950f (probably m328p)
avrdude: reading input file "/tmp/arduino_build_696342/toneMelody.ino.hex"
avrdude: writing flash (3624 bytes):
Writing | ################################################## | 100% 0.60s
avrdude: 3624 bytes of flash written
avrdude: verifying flash memory against /tmp/arduino_build_696342/toneMelody.ino.hex:
avrdude: load data flash data from input file /tmp/arduino_build_696342/toneMelody.ino.hex:
avrdude: input file /tmp/arduino_build_696342/toneMelody.ino.hex contains 3624 bytes
avrdude: reading on-chip flash data:
Reading | ################################################## | 100% 0.47s
avrdude: verifying ...
avrdude: 3624 bytes of flash verified
avrdude done. Thank you.
Hi @brewmanz. Thanks for taking the time to submit an issue.
The tone() function is not ignoring the duration parameter, it's just not using it as you expect. This function is non-blocking. That means that after you call tone(), the sketch execution continues, so you can do other things while the tone is playing. If you have set a duration, the tone output will stop after that duration has passed. So in your sketch the tone frequency is incrementing as fast as the for loop can iterate.
I see this non-blocking duration behavior is not mentioned in the tone() page of the Arduino Language Reference. We can use this issue to track that deficiency.
@per1234 I'll bring this to the attention of the content team so that we can add an explanation in the documentation.
