I can't set "configurePin" in mode 'pwm' (work with Raspberry pi3)

2 vues (au cours des 30 derniers jours)
Sergey Nazarov
Sergey Nazarov le 29 Déc 2017
When I write command:
configurePin(mypi, 13, 'PWM');
I receive error:
">> configurePin(mypi, 13, 'PWM');
Error using raspi/recvResponse (line 697)
Unable to configure pin for PWM output.
Error in raspi.internal.PWMBase/initPWM (line 24)
recvResponse(obj);
Error in raspi/configurePinPWM (line 830)
initPWM(obj,pinNumber,frequency,0);
Error in raspi/configurePin (line 489)
configurePinPWM(obj,pinNumber,frequency);
"
Help me, please.

Réponses (1)

Walter Roberson
Walter Roberson le 29 Déc 2017
Notice that 13 is not on the list of Available Digital Pins in the example https://www.mathworks.com/help/supportpkg/raspberrypiio/ref/configurepin.html#bvdit9u.bt548he-20 .
The list of GPIO pins is different for different boards and different ways of talking about the pins. In at least one of the pin numbering schemes, pin 13 is MISO, which is for SPI interfaces.
  1 commentaire
Sergey Nazarov
Sergey Nazarov le 30 Déc 2017
Modifié(e) : Walter Roberson le 30 Déc 2017
I was trying "Wiring Pi pin 23" - nothing
I also was trying use any number from this list:
"
>> mypi.AvailableDigitalPins
ans =
2 3 4 5 6 7 8 9 10 11 12 13 14
15 16 17 18 19 20 21 22 23 24 25 26 27
"
but answer was old

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