Hello,
My setup is as following:
- FC : Mateksys H743-MINI (running copter-bdshot 4.3.3), with this settings
NTF_BUZZ_PIN 32
NTF_BUZZ_TYPES 5 (do means PIN + DroneCan active)
NTF_BUZZ_VOLUME 10
- AP_PERIPH : CAN NODE L431 (running stable 1.4.x or lastet 1.5.x), with this settings:
NTF_BUZZ_PIN = 32 ( was -1 by default)
NTF_BUZZ_ON_LVL = 1
NTF_BUZZ_VOLUME = 1
Some other information AP_PERIPH L341:
- NeoLed on pin SERVO 5 is working OK
- GPS & Compass are working OK, compass calibration done.
case 1 : NTF_BUZZ_TYPES = 0
- On AP_PERIPH reboot , I get no sound while booting L431.
- At FC reboot/startup, I can ear the boot melody on AP_PERIPH L431 , so the Buzzer wiring is OK. When playing the FC boot melody, i can seen the waveform on the BZ- PIN of L431, showing power peaks at each rise of the curve, which explain why i can ear the melody.
BTW, I can’t seen the melody CAN command using drone can gui → bus monitor, since my FC is rebooting… [Edit : expected since play_tone(AP_NOTIFY_TONE_STARTUP) is called from AP_PERIPH boot]
After the boot melody is played, no tone is audible (uavcan.equipment.indication.beepcommand is doing no audible sound, generated from LOST_BEEP on FC+RC). But, what is really wierd is that i can still see the expected tone the waveform in my scope, BUT WITHOUT POWER PEAK !!! suggesting fewer power is sent to the buzzer. Maybe the STM32 pin driving the buzzer (transistor/mosfet) is sending far less voltage to the driver than during the melody tone.
Anyway, NTF_BUZZ_TYPES=0 should give no sound at all, so this result is not expected (I am right ?).
case 2 : NTF_BUZZ_TYPES = 1 or 5 or 7
if NTF_BUZZ_TYPES is equal to 1 or any value above, I get a permament ON state atfer AP_PERIPH boot (BZ-=0V, constant value, seen with a scope) which gives a loudy buzzer sound.
I hope it will help someone to trigger the root cause…
Does anyone has a clue or a more testing procedure to be done in mind ?
Regards,
Romary