cant add a custom description to ble hid

RE: cant add a custom description to ble hid

Edvin — Tue, 22 Sep 2020 11:36:49 GMT

[quote user="pipixia_8_8"]if press the key0,the api cmd_ble_start_advertising will be called. and i prees the key0 and see the nrf connect .the device advertise disappear .[/quote]

Is this an issue, or is it the behavior that you desire?

If it is an issue, have you tried debugging it? Does the log say anything? Do you see any logs at all?

[quote user="pipixia_8_8"]the device reset.so what shoul i do in the project ble_app_hids_keyboard to change the mac of advertisement?[/quote]

I struggle a bit to understand the flow here, but if you want to change the BLE address, look into the functions sd_ble_gap_addr_get() and sd_ble_gap_addr_set().

BR,

Edvin

RE: cant add a custom description to ble hid

pipixia_8_8 — Tue, 22 Sep 2020 06:52:52 GMT

hi,thank for your reply.i have solve this problem .the problem is the value of erase_bonds in init.

and now i want to modify the advertise when runing.

and my code like this in the BSP_EVENT_KEY_0 of project nRF5_SDK_16.0.0_98a08e2\examples\ble_peripheral\ble_app_hids_keyboard

void cmd_ble_start_advertising(uint8_t para,uint32_t pointer,uint8_t *data)
{
	
	if(para>2)
		return;
	
	
	
		ble_gap_addr_t ble_addr;
	  sd_ble_gap_adv_stop(m_advertising.adv_handle);
	

	
  uint32_t err_code = sd_ble_gap_addr_get(&ble_addr);
  APP_ERROR_CHECK(err_code);

	NRF_LOG_INFO("ble_addr.addr[0] =%d.",ble_addr.addr[0]);
//  ble_addr.addr[0] =0xff;// ble_addr.addr[0]+para;
  err_code = sd_ble_gap_addr_set(&ble_addr);
	NRF_LOG_INFO("err_code =%d.",err_code);
  APP_ERROR_CHECK(err_code);

	
	/*
	if (m_conn_handle == BLE_CONN_HANDLE_INVALID)
	{
			uint32_t err_code = ble_advertising_restart_without_whitelist(&m_advertising);
			if (err_code != NRF_ERROR_INVALID_STATE)
			{
					APP_ERROR_CHECK(err_code);
			}
	}
*/

    advertising_start(0);


}

if press the key0,the api cmd_ble_start_advertising will be called. and i prees the key0 and see the nrf connect .the device advertise disappear . and than i press the key0 again.the device reset.so what shoul i do in the project ble_app_hids_keyboard to change the mac of advertisement?

RE: cant add a custom description to ble hid

Edvin — Mon, 21 Sep 2020 13:06:27 GMT

Perhaps one of your devices has old bonding data stored, while the other one doesn't? Try to erase the bonding information from both sides. On the phone, use the "forget device" option, and on the nRF, erase the entire chip using "nrfjprog --eraseall", and then reprogram it.

If the issue seems to be related to some button functionality, perhaps you erase the bonding information based on some of your button status during startup?
Does your advertising_init() function in main.c have an erase_bonds parameter as input?

RE: cant add a custom description to ble hid

pipixia_8_8 — Mon, 21 Sep 2020 10:31:53 GMT

hi，Edvin

i have solve this problem ,the reason is the report id should be start with 1,and the report_index of ble_hids_inp_rep_send should be start with 0,becuase the frist element of arry input_report_array is input_report_array[0],but now the other problem is the bond problem.

i comment the code buttons_leds_init(&erase_bonds) in the main duncation. and find the once connect the pc ,and than reset nrf52840,and the jlink will report erro:

00> <info> peer_manager_handler: Connection security failed: role: Peripheral, conn_handle: 0x0, procedure: Encryption, error: 4102
00> 
00> <info> app: Fast advertising.
00> 
00> <info> app: Disconnected
00> 
00> <info> app: Connected
00> 
00> <info> peer_manager_handler: Connection security failed: role: Peripheral, conn_handle: 0x0, procedure: Encryption, error: 4102
00> 
00> <info> app: Fast advertising.
00> 
00> <info> app: Disconnected

the device in the status betwen connect and disconnect.

and i seek the source api .i find the reason is the funcation : nrf_drv_gpiote_in_init

in the project

nRF5_SDK_16.0.0_98a08e2\examples\ble_peripheral\ble_app_hids_keyboard

if i conment the api nrf_drv_gpiote_in_init in app_button_init,the erro 4102 will report, otherwise the device work well.

so i dont konw why the pins input funcation will infulence the funcation of bond?

RE: cant add a custom description to ble hid

Edvin — Mon, 21 Sep 2020 08:38:02 GMT

Hello,

What is located around line 1786 in your main.c? What function returned 12 [NRF_ERROR_DATA_SIZE] ?

I don't know exactly how to add a custom descriptor to the HID table, but if it leads to an increased HID report, then you probably need to increase the MTU size, or the characteristic value size. Try to debug to figure out why the function that returned 12 returned it. Was there a check inside the function that returned it, or the softdevice call (sd_...() )?

BR,
Edvin