Dual outputs and locked PWM on the same EHRPWM module

[Aidan275]

Hi,

When writing 1 using analogWrite to a PWM pin, the associated pin that is connected on the same EHRPWM module also outputs 1.

Trying to write 0 to this associated pin doesn't change the output and it can only be set to 0 if we use analogWrite to set it to 1 first.

The example below will result in P9_14 and P9_16 both outputting 1.

const b = require('bonescript');
b.pinMode('P9_14', b.ANALOG_OUTPUT);
b.analogWrite('P9_14', 1, 2000);

I've only tested the following pins so far and they all appear to have the same issue.

• P8_13 and P8_19
• P9_14 and P9_16
• P9_21 and P9_22

I found a similar issue already posted here #15 but we are unable to use the suggested workaround of using pins that aren't connected on same EHRPWM module.

Thanks, Aidan

[Aidan275]

Hi @jadonk,

You mentioned in #15 that you know how to fix this issue, I know you must be busy but if you could please give me any info on the cause of the issue and point me in the right direction so that I can attempt to fix it I would really appreciate it.

Thanks, Aidan

[riptho]

I am also having this issue. Please advise.