REXYGEN Community Forum / PWM pin mode

Re: PWM pin mode

2016-03-25T22:57:50Z

The PWM range is 0..1023. Multiply your boolean signal by 1023 to get full duty cycle (use GAIN block).

Re: PWM pin mode

2016-03-25T17:31:55Z

Attached are two .mdl files: motor_task.mdl and motorTest.mdl
On the Pi (without REX) we use the RPIO library and the PWM commands to control the output and change the frequency and/or duty cycle, but have run into some issues trying to copy this type of functionality via REX. Is there a demo file for a working PWM setup with a Raspberry Pi? Do you have any guides for the proper setup for a Pi?

Re: PWM pin mode

2016-03-17T08:04:12Z

Please, can you attach whole Rex project (.mdl files)? It would be much easier to find the issue in your implementation.

Regards, Tomas

PWM pin mode

2016-03-16T19:44:47Z

I am trying to use the PWM pin mode to control a basic motor. As documented in the Raspberry Pi Rex User Guide, it says that GoTo RPI__PWM18 will produce output on pin 18. I am getting no output from pin 18 when I implement this block. However, if I rename the block to RPI__GPIO18, I get output on pin 18. A picture of the block I've set up is attached. Any suggestions on setting up PWM would be helpful. Thanks in advance.