Can i make better the range of NRF52832 with software?

[bariserbay]

Hi,

Can i change the antenna power with software?

[AndreasF]

Hi.

Do you mean the radio's transmit power?

You can set that by calling sd_ble_gap_tx_power_set().

For SoftDevice S132 V6.1.0, the API is:

/**@brief Set the radio's transmit power.
 *
 * @param[in] role The role to set the transmit power for, see @ref BLE_GAP_TX_POWER_ROLES for
 *                 possible roles.
 * @param[in] handle   The handle parameter is interpreted depending on role:
 *                     - If role is @ref BLE_GAP_TX_POWER_ROLE_CONN, this value is the specific connection handle.
 *                     - If role is @ref BLE_GAP_TX_POWER_ROLE_ADV, the advertising set identified with the advertising handle,
 *                       will use the specified transmit power, and include it in the advertising packet headers if
 *                       @ref ble_gap_adv_properties_t::include_tx_power set.
 *                     - For all other roles handle is ignored.
 * @param[in] tx_power Radio transmit power in dBm (see note for accepted values).
 *
  * @note Supported tx_power values: -40dBm, -20dBm, -16dBm, -12dBm, -8dBm, -4dBm, 0dBm, +3dBm and +4dBm.
  * @note The initiator will have the same transmit power as the scanner.
 * @note When a connection is created it will inherit the transmit power from the initiator or
 *       advertiser leading to the connection.
 *
 * @retval ::NRF_SUCCESS Successfully changed the transmit power.
 * @retval ::NRF_ERROR_INVALID_PARAM Invalid parameter(s) supplied.
 * @retval ::BLE_ERROR_INVALID_ADV_HANDLE Advertising handle not found.
 * @retval ::BLE_ERROR_INVALID_CONN_HANDLE Invalid connection handle supplied.
 */
SVCALL(SD_BLE_GAP_TX_POWER_SET, uint32_t, sd_ble_gap_tx_power_set(uint8_t role, uint16_t handle, int8_t tx_power));

Best regards,

Andreas

[bariserbay]

Hi Andreas,

Thanks for your answer. Yes i mean the radio's transmit power. i found that code block. But i don't understand how can i change it. 

Thanks..

[awneil]

AndreasF said:

Do you have a licence for Keil u5? Have you installed the latest J-Link drivers?

Those things would give different errors - It's complaining that it can't find the .axf file.

(although lack of a licence could be a reason for the build to fail and, therefore, not generate the .axf)

[AndreasF]

Hi.

Yes, I think it is complaining about not finding the .axf file because it cannot build the project without a licence, because the project is to big.

Here, I've recreated the error by trying to build the project in Keil 5 without a licence:

First error: Cannot build because the project is to big

Second error: Cannot flash, because the .xaf file does not exist:

You can use Segger Embedded Studio for free with Nordic Products, It has not this limitation, and I suggest you use that if you do not wish to pay for a license.

Best regards,

Andreas

[bariserbay]

Thanks for all of your answers.

I tried with licenced keil and it works!

[bariserbay]

Is default power value is +4dBm in sdk?
I'm using nordic uart service(nus).

[AndreasF]

Hi.

The default transmit power is 0 dBm.

Best regards,

Andreas