PWM does not work correctly

[Osta]

Hello everyone!
I use Attiny44 , Flowcode 9.2.
In the emulator, it works true and in Proteus and iron works not right!
Examples of work apply.

[medelec35]

Hi, I don't have the Attiny44, so I won't be able to help much.
Does the hardware match the simulation or you have not tried it on hardware yet?
Can you try the one-second flasher test on your hardware to make sure the hardware is running at the correct speed?

[Osta]

I made an order for attiny 44
When I get her then I can check.

[Osta]

The delay in one second in Proteus was confirmed.
But PWM does not work right!

[medelec35]

I have just looked into this.
When you compile you will see a warning:

Code: Select all

C:\ProgramData\MatrixTSL\FlowcodeV9\CAL\AVR\AVR_CAL_PWM.c:495:3: warning: #warning "Period control register not available on target device, period will default to 255 + 1" [-Wcpp]
  #warning "Period control register not available on target device, period will default to 255 + 1"

Therefore, to get a PWM 50% duty cycle you need to set the duty to 127.
Unfortunately, that is the disadvantage of AVR.

[Osta]

Many thanks!
With gratitude Osta.

[medelec35]

As limited PWM is caused by the limitations of AVR, I have moved topic from the bugs section.
If you believe this is resolved can please add [Resolved] to the start of your subject.