Problem to configure pins using NRF52833 in raytac module

RE: Problem to configure pins using NRF52833 in raytac module

Laerte Junior — Fri, 04 Apr 2025 13:01:20 GMT

Sorry for delay, but it works now.

my solution for this case:

#define PINO_TX NRF_GPIO_PIN_MAP(1,5)
#define PINO_RX NRF_GPIO_PIN_MAP(0,19)

app_uart_comm_params_t const comm_params =
    {
        .rx_pin_no    = PINO_RX,//19,//RX_PIN_NUMBER,
        .tx_pin_no    = PINO_TX,//23, //TX_PIN_NUMBER,
        .rts_pin_no   = 0,//RTS_PIN_NUMBER,
        .cts_pin_no   = 0,//CTS_PIN_NUMBER,
        .flow_control = APP_UART_FLOW_CONTROL_DISABLED,
        .use_parity   = false,
#if defined (UART_PRESENT)
        .baud_rate    = NRF_UART_BAUDRATE_115200
#else
        .baud_rate    = NRF_UARTE_BAUDRATE_115200
#endif
    };

thanks for the answer

RE: Problem to configure pins using NRF52833 in raytac module

Hung Bui — Mon, 24 Mar 2025 13:21:19 GMT

Hi,
Agree with Hugh. You need to use NRF_GPIO_PIN_MAP(port, pin). See:

#define NRF_GPIO_PIN_MAP(port, pin) (((port) << 5) | ((pin) & 0x1F))

RE: Problem to configure pins using NRF52833 in raytac module

hmolesworth — Fri, 21 Mar 2025 20:53:09 GMT

.tx_pin_no = 5, //TX_PIN_NUMBER

This sets Tx on P0.05 instead of P1.05, so that's the basic issue. How you fix that depends on the SDK ..