STM32F205 in STOP mode with MCO pin

[mailmail9117]

Posted on October 22, 2013 at 02:09

In the STM32F205 datasheet, it says that in STOP power mode, all clocks on the 1.2V power domain are stopped. Is there anywhere I can look to see which clocks are part of the ''1.2V power domain'' ?

Particularly, I'm interested if the MCO pin will continue to run in this power mode. My MCO pin has its source set to the LSE oscillator. DP #stm32f2-stop-power-mode-mco

[Tesla DeLorean]

Posted on October 22, 2013 at 02:54

Would think this is something that could be checked pretty quickly. I would tend to assume it's not going to get out of MCO based on all the synchronous logic it's going through internally.

The 1.2V clocks I think it's referring too are the APBx/AHBx clocks, as it explicitly states the HSI, HSE and PLL are disabled. The internals are running at 1.2V, the external IO with the exception of 3-4 pins in the backup domain, are at 3V (or whatever your supply is at).