How to set UART without CTS/RTS in Zigbee CLI example

[nanbuwks]

I use Zigbee CLI example on nRF52840.
(examples\zigbee\experimental\cli\cli_agent_router)

It use UART as 115200 bps with CTS/RTS (hardware flow control).

I want to change setting UART to without CTS/RTS. 

I looked in the project for the settings but couldn't find them.

Where should I set this up?

[Simonr]

Hi

In order to disable HW flow control you only need to set APP_UART_FLOW_CONTROL_DISABLED in the UART parameters and change the CTS and RTS pins in your application to NULL.

Best regards,

Simon

[nanbuwks]

Hi Simonr! Thank you for reply.

I didn't know where to set "APP_UART_FLOW_CONTROL_DISABLED" up.

Instead, I found the following.

zigbee_cli.c:

#if CLI_OVER_UART
nrf_drv_uart_config_t uart_config = NRF_DRV_UART_DEFAULT_CONFIG;
uart_config.pseltxd = TX_PIN_NUMBER;
uart_config.pselrxd = RX_PIN_NUMBER;
#if defined(HWFC) && (HWFC == true)
uart_config.pselcts = CTS_PIN_NUMBER;
uart_config.pselrts = RTS_PIN_NUMBER;
uart_config.hwfc = NRF_UART_HWFC_ENABLED;
#endif
ret = nrf_cli_init(&m_cli_uart, &uart_config, true, true, NRF_LOG_SEVERITY_NONE);
APP_ERROR_CHECK(ret);
#endif

I changed to:

    uart_config.hwfc    =  NRF_UART_HWFC_DISABLED;

So, I was able to get a CLI without RTS/CTS controls.

But, The

#if defined(HWFC) && (HWFC == true)

line are enabled. I don't know why HWCC is true. Where are you setting this up?