Stm32 pwm complementary channel

[ser-plu]

#1011
I implemented the fixes only for the G4 family.

[chris-durand]

Thanks!

[chris-durand]

Github is having some outage right now. CI jobs randomly fail.

[chris-durand]

@ser-plu Could you add yourself to the copyright headers in general_purpose_base.hpp.in / general_purpose_base.cpp.in? Then the changes look good to be merged from my side.

[ser-plu]

Will do. I would also like to add a function isComplementarySignal to the interface. And maybe a couple of functions with Timer properties, like isAdvancedTimer etc. Then I can implement a very generic abstractions, that could use any timer available

[ser-plu]

Guys, could you check the CI here as well? It failed in different places, probably due to Github outages

[rleh]

I restarted the failed jobs :)

The docs-job fails for the same reason as #1017, lets fix the issue over there and rebase this branch later.

[salkinium]

CI is fixed now.

[ser-plu]

Seems to be ready to be merged

[ser-plu]

I have seen, that @chris-durand removed a couple of functions, that I had added before (isComplementaryChannel, Timer::hasAdvancedControl). I wanted to use them in a generic PWM channel like here:
develop...ser-plu:modm:generic-pwm-channel
(the code is does not correspond to your codestyle, I wanted to adapt it after we finish with this PR)

With this code one could use PWM output like this:

using Led1Pwm = PwmChannel<Timer16, GpioOutputB6::Ch1n, SystemClock>;
using MotorControlPwm = PwmChannel<Timer3, GpioOutputA6::Ch1, SystemClock>;
using Dac1OutputPwm = PwmChannel<Timer8, GpioOutputB1::Ch3n, SystemClock>;
using Led2Pwm = PwmChannel<Timer17, GpioOutputA7::Ch1, SystemClock>;

Led1Pwm led1;
MotorControlPwm motor;
Dac1OutputPwm dac1;
Led2Pwm led2;

auto pwm_channels = std::to_array<IPwmChannel* const>({&led1, &motor, &dac1, &led2});

for (auto* chan : pwm_channels) {
  chan->Init();
}

while (1) {
  for (auto* chan : pwm_channels) {
    chan->SetDutyCycle(value);
  }
}

I find it more convenient, than writing the same lines for every PWM I need, also thinking every time, whether the Timer has MOE bit or not and remembering about the complementeary channel pins.
Also having the Interface as a base class helps in Unit tests of the code, that uses the PWM.

So I suggest to bring my functions back into PR :)

[chris-durand]

Oh, I must have messed something up by accident. I only wanted to rebase, sorry. Could you push your changes again?

EDIT: I found the terminal from yesterday. I did a git fetch but it failed with a network error and I didn't notice 🙈.

[ser-plu]

returned the changes