ncs 1.6.1 peripheral_uart example - enable flow control

[alvin.le]

Hi,

I'm working with the peripheral_uart example in ncs 1.6.1 and wanted to enable flow control for uart0, but do not see a way to do that.

How do I enable flow control for this example?

Thank you

[SwRa]

Hi Alvin,

The flow control can be enabled in the Devicetree using the code "hw-flow-control;" inside the UART initialization. 

Regards,

Swathy

[alvin.le]

Hi Swathy,

I'm adding it to my board overlay file and when I do, it appears that the board stops being discoverable.

The board I'm working with is nrf52840dk_nrf52840

&uart0 {
  status = "okay";
  hw-flow-control;
};

Do you know what might be happening? Let me know if I can provide additional information.

Thanks,

Alvin

[alvin.le]

Looks like I found out what's happening, the peripheral_uart main.c file has some print statements in the code.

It will hang there if P0.07 (CTS) is not grounded because flow control is now enabled.