bug with pca9685

[aderito]

Hi, I came here to report what I think is a bug with the "pca9685" component.

After some time trying to get it to work with a simple test program, I discovered that in the properties window for this component, if both channel 1 and channel 2 are selected, it simply doesn't work.

However, if software mode is selected, it works without any problems.

Any ideas?

Thanks in advance.

[aderito]

here are the related files

[medelec35]

Have you tried using Embedded hardware or just simulating?
There are occasions where the simulator is the issue and I want avoid that.
Can you let me know if hardware has the same issue?

[aderito]

Hi Martin, thanks for the reply.
I've only simulated with Proteus so far, but what I noticed was the difference in setup times during the four macros (separated by a 1-second delay) before entering the loop.
I don't yet have the PCB with the PCA9685 chip physically with me to test.
I usually test with Proteus whenever possible before moving on to the "physical" part, and so far I haven't had any problems.
If anyone here has the opportunity to test with hardware, that would be great.

[aderito]

I'm out at the moment, as soon as I can I'll take a screen capture with the software configuration and the dedicated channel configuration.

[aderito]

As promised, I will post 6 screenshots. The first 3 refer to the configuration in "software" mode and the next 3 in "channel 1" mode.

[aderito]

each capture represents the three configuration steps plus the loop

[aderito]

These three screenshots refer to software mode

[aderito]

The simulation order is: 1,2,3 for software mode and: 1_1,1_2,1_3
for channel 1.
For reference, the same tests were performed on channel 2 and the results were the same.

[aderito]

this is the test program