STM32L471RGT6 sharing UART4 CTS and JTAG

[rwils.1]

The JTAG pin TDI shares functionality with the UART4 CTS function , how do I use CTS and and still program the part with the JTAG connector?

Any help appreciated.

Richard

[Peter BENSCH]

The JTAG pins and therefore also TDI are fixed and cannot be moved. With the STM32L471RGT6, the TDI is shared with UART4 RTS (not CTS), so in this case you have to choose one of the two functions. Alternatively, you could use one of the other U(S)ARTs 1, 2, 3 or 5?

Regards

/Peter

[rwils.1]

Thanks Peter,

I miss typed, I agree it is RTS.

[Chris1]

You can program / debug using SWD, which does not require use of JTDI.

[rwils.1]

That's a good idea!

Thanks