GPIOTE does not work when PA/LNA is enabled

[hrms]

I am using GPIO interrupt event.

And I added the following code because I wanted to observe PA / LNA.

static void pa_lna_init(void)
{
    ret_code_t err_code;
    
    static const uint32_t gpio_toggle_ch = 0;
    static const uint32_t ppi_set_ch = 0;
    static const uint32_t ppi_clr_ch = 1;

    ble_opt_t opt;
    
    memset(&opt, 0, sizeof(ble_opt_t));
    // Common PA/LNA config
    opt.common_opt.pa_lna.gpiote_ch_id  = gpio_toggle_ch;        // GPIOTE channel
    opt.common_opt.pa_lna.ppi_ch_id_clr = ppi_clr_ch;            // PPI channel for pin clearing
    opt.common_opt.pa_lna.ppi_ch_id_set = ppi_set_ch;            // PPI channel for pin setting
    // PA config
    opt.common_opt.pa_lna.pa_cfg.active_high = 1;                // Set the pin to be active high
    opt.common_opt.pa_lna.pa_cfg.enable      = 1;                // Enable toggling
    opt.common_opt.pa_lna.pa_cfg.gpio_pin    = PA_PIN;      // The GPIO pin to toggle
  
    // LNA config
    opt.common_opt.pa_lna.lna_cfg.active_high  = 1;              // Set the pin to be active high
    opt.common_opt.pa_lna.lna_cfg.enable       = 1;              // Enable toggling
    opt.common_opt.pa_lna.lna_cfg.gpio_pin     = LNA_PIN;   // The GPIO pin to toggle

    //opt.common_opt.conn_evt_ext.enable = 1;

    err_code = sd_ble_opt_set(BLE_COMMON_OPT_PA_LNA, &opt);
    APP_ERROR_CHECK(err_code);
    //err_code = sd_ble_opt_set(BLE_COMMON_OPT_CONN_EVT_EXT, &opt);
}

Adding this code stopped the GPIO interrupts.　Can the two coexist?

[Einar Thorsrud]

Hi,

Yes, there is no problem using PA/LNA feature in the SoftDevice and GPIO interrupts simultaneously. But you should make sure that there is no overlapping (don't use the same PPI channels, same GPIOTE channel or same pins).

[hrms]

Thank you.

Probably worked fine

I take care channel.