PC-BLE-DRIVER turns on notification

RE: PC-BLE-DRIVER turns on notification

Simonr — Tue, 10 Dec 2019 11:56:42 GMT

I can't see that you've set the characteristic properties according to the ble_gatt_char_props_t structure in the SoftDevice specifications. Please make sure you've done that.

Best regards,

Simon

RE: PC-BLE-DRIVER turns on notification

Geass77 — Tue, 10 Dec 2019 08:58:10 GMT

I think I had set it, because I added my character by looking this site

RE: PC-BLE-DRIVER turns on notification

Simonr — Mon, 09 Dec 2019 13:08:45 GMT

You have to set read/write attribute properties as well. Have you done that? It is described in the BLE characteristics tutorial I linked to earlier.

Best regards,

Simon

RE: PC-BLE-DRIVER turns on notification

Geass77 — Mon, 09 Dec 2019 04:38:22 GMT

I had set the code like this

RE: PC-BLE-DRIVER turns on notification

Simonr — Thu, 05 Dec 2019 09:37:03 GMT

Can you upload a code snippet showing how/where you set the CCCD in the first place?

Best regards,

Simon

RE: PC-BLE-DRIVER turns on notification

Geass77 — Thu, 05 Dec 2019 06:23:18 GMT

I actually set these parameters in my dk ,but it still can't change the cccd value, I'm wondering that my cccd value in my pc-ble-driver is wrong, it is 0x2803 shows in the driver, but in nrf connect, it shows 0x2902, and the handlers of my character and cccd are same

RE: PC-BLE-DRIVER turns on notification

Simonr — Wed, 04 Dec 2019 14:10:18 GMT

Error code 0x103 means that the write operation is not permitted. You'll need to set all the permissions that are needed in order to write there. Please check that the following permissions are set:

char_md.char_props.read = 1;
char_md.char_props.write = 1;

and

BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.read_perm);
BLE_GAP_CONN_SEC_MODE_SET_OPEN(&attr_md.write_perm);

You can also check out this BLE characteristic guide for more info on how to set up custom characteristics.

Best regards,

Simon

RE: PC-BLE-DRIVER turns on notification

Geass77 — Wed, 04 Dec 2019 08:55:37 GMT

My PC-BLE-DRIVER detect my cccd as 0x2803 ,but when I try to change the cccd value ,it returned this

RE: PC-BLE-DRIVER turns on notification

Simonr — Wed, 04 Dec 2019 07:17:01 GMT

I need more information in order to be able to help you. Can you upload the log file where you get this error? Does it have an error code?

Best regards,

Simon

RE: PC-BLE-DRIVER turns on notification

Geass77 — Tue, 03 Dec 2019 13:47:22 GMT

It returns that no CCCD value find

RE: PC-BLE-DRIVER turns on notification

Simonr — Fri, 29 Nov 2019 09:12:01 GMT

What error do you get if you try changing the CCCD value? Please provide some more information so I'll be able to help you.

Best regards,

Simon

RE: PC-BLE-DRIVER turns on notification

Geass77 — Thu, 28 Nov 2019 05:09:43 GMT

I have enable the notification in central, but when I use the nrf-connect my cccd shows 2902, however ,in pc-ble driver it shows 2803, so I can't change the cccd value in my pc-ble-driver, it returns error

RE: PC-BLE-DRIVER turns on notification

Simonr — Tue, 26 Nov 2019 13:58:27 GMT

You'll have to enable notifications on the central you're connecting your device to in order to get the characteristics. You can check out the ble_nus_c_evt_handler and the notif_enable() function in our ble_app_uart_c example to see how this is done.

Best regards,

Simon