RE: FANSTEL EV-BT840F set maximum transmission power +8dbm

MartinBL — Tue, 12 Jun 2018 08:42:06 GMT

Hi,

The S132 is made for nRF52832 which doesn't support 8 dBm output power. Hence you get error 7, NRF_ERROR_INVALID_PARAM, when you call sd_ble_gap_tx_power_set() with 8 as a parameter.

RE: FANSTEL EV-BT840F set maximum transmission power +8dbm

Nikunj Patel — Tue, 12 Jun 2018 02:40:31 GMT

Ans1. Tx Power Set Function

err_code= sd_ble_gap_tx_power_set(RADIO_TXPOWER_TXPOWER_Pos8dBm);
APP_ERROR_CHECK(err_code);

Ans2. I m using s132_nrf52_3.0.0_softdevice ,SDK -nRF5_SDK_12.3.0_d7731ad

Ans3. Same Firmware i m using both kits

ANS4.

static void gap_params_init(void)
{
uint32_t err_code;
ble_gap_conn_params_t gap_conn_params;
ble_gap_conn_sec_mode_t sec_mode;

BLE_GAP_CONN_SEC_MODE_SET_OPEN(&sec_mode);

err_code = sd_ble_gap_device_name_set(&sec_mode,
(const uint8_t *) DEVICE_NAME,
strlen(DEVICE_NAME));
APP_ERROR_CHECK(err_code);

//Set power level to +8dBm
err_code = sd_ble_gap_tx_power_set(RADIO_TXPOWER_TXPOWER_Pos8dBm);
// APP_ERROR_CHECK(err_code);
if(err_code==NRF_SUCCESS)
{
nrf_gpio_pin_set(LED_3);
nrf_delay_ms(2000);

nrf_gpio_pin_clear(LED_3);
nrf_delay_ms(1000);

nrf_gpio_pin_set(LED_3);
nrf_delay_ms(2000);

nrf_gpio_pin_clear(LED_3);
nrf_delay_ms(1000);

}
else
{
//printf("\r\nTX SET ERROR = %04x\r\n",err_code);
}

memset(&gap_conn_params, 0, sizeof(gap_conn_params));
gap_conn_params.min_conn_interval = MIN_CONN_INTERVAL;
gap_conn_params.max_conn_interval = MAX_CONN_INTERVAL;
gap_conn_params.slave_latency = SLAVE_LATENCY;
gap_conn_params.conn_sup_timeout = CONN_SUP_TIMEOUT;

err_code = sd_ble_gap_ppcp_set(&gap_conn_params);
APP_ERROR_CHECK(err_code);
}

RE: FANSTEL EV-BT840F set maximum transmission power +8dbm

MartinBL — Mon, 11 Jun 2018 12:42:48 GMT

What function is returning error 7?
What SDK and Softdevice version are you using?
Are you using the exact same versions on both kits?
Can you show us your code?