r3s MCUs

Gavin

I am currently working on a project that involves the use of APM32F405/415xG and APM32F407/417xExG series microcontrollers. These microcontrollers have two USB OTGs_HS. Can I use both USB OTGs_HS simultaneously on the mentioned APM32F4xx series microcontrollers?

S'Hase

I have some experience with these microcontrollers, and as far as I know, you cannot use both USB OTGs_HS simultaneously. They share several resources, including clock, reset, bus address, CPU interrupt, power supply, and pins. You can only use one of the two USB OTGs_HS at a time.😯

pi_20

That’s correct, I’ve also worked with these microcontrollers before, and you can’t use both USB OTGs_HS simultaneously. The main difference between the two is that one has an on-chip UTMI USB PHY (with an internal PLL providing a 60MHz output), while the other does not have it.