Can the UART1 and OTG_FS core run at the same time on STM32F40x-ZG,

[Taehyuk Kwon]

Posted on July 04, 2018 at 00:30

With STM32F40x-ZG, I want to run OTG_FS and UART1.  But I found that the OTG_FS_VBUS line is shared with USART1_TX line for the device. Does it mean that only one of them can run while the other is disabled ?

Or can the UART1 and OTG_FS core run at the same time ? If so what is the configurations for OTG_FS_VBUS.

Thanks,

TH

[waclawek.jan]

Posted on July 04, 2018 at 07:54

You use PB6 for USART1_TX.

Also, VBUS is not strictly necessary to run USB, it is only used to detect cable connect/disconnect.

JW