https://community.nxp.com/t5/i-MX-Processors/5-UART-Channels/m-p/1328883#M179020 <P>Hello,</P><P>&nbsp;</P><P>I am using the IMX 8 QM and am having trouble finding information on the UARTs. I have used the two flow control UARTs (RS422 to UART Receiver)&nbsp; and am wondering where to connect my next two.</P><P>Are the M40 GPIO/I2C and M42 GPIO/I2C able to be used as UART?</P><P>If not, where should I connect my RS232 to UART Transceiver?</P><P>&nbsp;</P><P>Thank you!</P> Tue, 24 Aug 2021 19:54:20 GMT CircuitPeon 2021-08-24T19:54:20Z https://community.nxp.com/t5/i-MX-Processors/5-UART-Channels/m-p/1328883#M179020 <P>Hello,</P><P>&nbsp;</P><P>I am using the IMX 8 QM and am having trouble finding information on the UARTs. I have used the two flow control UARTs (RS422 to UART Receiver)&nbsp; and am wondering where to connect my next two.</P><P>Are the M40 GPIO/I2C and M42 GPIO/I2C able to be used as UART?</P><P>If not, where should I connect my RS232 to UART Transceiver?</P><P>&nbsp;</P><P>Thank you!</P> Tue, 24 Aug 2021 19:54:20 GMT https://community.nxp.com/t5/i-MX-Processors/5-UART-Channels/m-p/1328883#M179020 CircuitPeon 2021-08-24T19:54:20Z https://community.nxp.com/t5/i-MX-Processors/5-UART-Channels/m-p/1328939#M179024 <P>Hi Brandon</P> <P>&nbsp;</P> <P>information about available uarts and muxing options can be found in</P> <P>i.MX8QM Reference Manual, in particular Chapter 2 Memory Map.</P> <P>Unfortunately currently it is not available on public web site, but can be obtained</P> <P>through local marketing channels.</P> <P>&nbsp;</P> <P>Best regards<BR />igor</P> Wed, 25 Aug 2021 00:30:56 GMT https://community.nxp.com/t5/i-MX-Processors/5-UART-Channels/m-p/1328939#M179024 igorpadykov 2021-08-25T00:30:56Z