To point Rx and Tx for UART

 To point Rx and Tx for UART

I use the MCBSTR9. It has two COMs.
Can I use two UARTs in the same time?
How can I point Tx and Rx for UARTs?
The Manual says that GPIO has 3 Alternate Outputs.

Pn.[7:0]OUT[1:0]: GPIO Port Output Control bits
00: Input mode
01: Alternate Output 1 (general purpose output)
10: Alternate Output 2
11: Alternate Output 3

I want to know which one has a UARTO, UART1 and UART2. Examples work with COM1 only.

Regards,
Sergiy

 RE: To point Rx and Tx for UART

Hello Sergiy Safronov,

it is possible to use several UARTs at the same time.
You must configure the correct GPIO ports for the different UARTs. Please check the STR9 datasheet (http://www.st.com/mcu/familiesdocs-101.html) for the different pin functions. Take a look at chapter Default pin functions to select the correct GPIO pins.

Best Regards,
Martin Guenther