Bug Report: CubeMX 4.16.0 on STM32F4Discovery TIM6 count down

Andrei Chichak · ‎2016-08-10

Posted on August 10, 2016 at 21:31

Using CubeMX version 4.15.1 running on a Mac with a new project targeting the STM32F4Discovery board. (Also tested on 4.16.0)

In the pinout panel activate TIM6. In the configuration panel, pick TIM6, put in a prescaler. Try and set the Counter Mode to Down. Nope, down isn't an option. Set a count, still can't set Down mode. That's a problem.

This might happen on other timers too, I'm not sure.

IOC file is attached.

Andrei from The Great White North

embedded.fm/blog

Nesrine M_O · ‎2016-08-11

Posted on August 11, 2016 at 11:21

Hi Andrei,

It is not an MX bug, in fact, according to the product reference manual the Basic timers (TIM6&TIM7) include a 16-bit auto-reload upcounter.

-Syrine-

Andrei Chichak · ‎2016-08-11

Posted on August 11, 2016 at 19:39

You are, of course, correct. I was reading the wrong section of the manual. And the assert would not have thrown because TIM_COUNTERMODE_DOWN is a valid mode, even if it isn't appropriate for this timer.

Thanks again.

Andrei