Central device can not find 2 services(0x1001,0x0001)

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Fri, 05 Jan 2018 09:45:25 GMT

Is this still a problem you haven't solved?

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Wed, 27 Sep 2017 08:21:07 GMT

Thank you very very very much. Currently it is not so urgent. Thank you for your consideration.

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Wed, 27 Sep 2017 08:01:55 GMT

I'll try make some modifications, see if I can get it to work, but it might take a couple of days before I have time.

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Wed, 27 Sep 2017 07:36:44 GMT

What you are writing is very difficult for me. What I want to do is to send data from central to peripheral for the two services. I am very thankful that there is a sample program.

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Wed, 27 Sep 2017 07:06:51 GMT

You do not want to set:

    p_ble_nus->handles.nus_tx_cccd_handle = p_peer_handles->nus_tx_cccd_handle;
    p_ble_nus->handles.nus_tx_handle      = p_peer_handles->nus_tx_handle;
    p_ble_nus->handles.nus_rx_handle      = p_peer_handles->nus_rx_handle;

and you do not call ble_nus_c_tx_notif_enable().

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Wed, 27 Sep 2017 07:06:46 GMT

The changes doesn't look correct at all. You will get two BLE_NUS_C_EVT_DISCOVERY_COMPLETE events.

One with valid handles for

nus_tx_cccd_handle
nus_tx_handle
nus_rx_handle

and invalid handle (0x0000) for handles.nus_rx2_handle

With this event you want to set:

    p_ble_nus->handles.nus_tx_cccd_handle = p_peer_handles->nus_tx_cccd_handle;
    p_ble_nus->handles.nus_tx_handle      = p_peer_handles->nus_tx_handle;
    p_ble_nus->handles.nus_rx_handle      = p_peer_handles->nus_rx_handle;

and call ble_nus_c_tx_notif_enable().

Second with valid handles for

handles.nus_rx2_handle

and invalid handles (0x000) for nus_tx_cccd_handle, nus_tx_handle, nus_rx_handle

With this event you want to set

p_ble_nus->handles.nus_rx2_handle      = p_peer_handles->nus_rx2_handle;

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Wed, 27 Sep 2017 06:56:36 GMT

There is no equipment now. I will test as soon as possible. Upload the file to be changed this time.ble_nus_c_toppan.c

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Wed, 27 Sep 2017 06:46:57 GMT

Impossible to test? Why? I don't understand your change suggestions.

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Wed, 27 Sep 2017 06:43:18 GMT

Thank you for your reply. Unfortunately it has become impossible to test now.

So,I ask you. What I have to change is

To the function ble_nus_c_handles_assign

p_ble_nus-> handles.nus_rx2_handle = p_peer_handles-> nus_rx2_handle;

With function ble_nus_c_tx_notif_enable

|| (p_ble_nus_c -> handles.nus_tx_cccd_handle == BLE_GATT_HANDLE_INVALID)

| ((p_ble_nus_c -> handles.nus_tx_cccd_handle == BLE_GATT_HANDLE_INVALID) && (p_ble_nus_c -> handles.nus_tx_cccd_handle == BLE_GATT_HANDLE_INVALID))

Change it

Is it right.

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Tue, 26 Sep 2017 14:20:46 GMT

Seems to me you have to modify ble_nus_c_handles_assign() and ble_nus_c_tx_notif_enable(). BLE_NUS_C_EVT_DISCOVERY_COMPLETE will be received twice. Once with valid handles for

nus_tx_cccd_handle
nus_tx_handle
nus_rx_handle

Second for valid handle for

handles.nus_rx2_handle

So when calling ble_nus_c_handles_assign() the second time with only a valid rx2 handle, the other handles seems to be set to 0, and then you get an error when ble_nus_c_tx_notif_enable() is called the second time.

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Mon, 25 Sep 2017 01:08:37 GMT

uload failed? I tryed again.But still fail. prg_peripheral.zip

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Wed, 20 Sep 2017 01:13:23 GMT

I appreciate your help.

I will upload so please be kind.

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Tue, 19 Sep 2017 12:32:29 GMT

Thanks. Could you upload the complete project for the peripheral as well? So I can test them together?

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Tue, 19 Sep 2017 01:09:26 GMT

I am using SDK is nRF5_SDK_13.0.0_04a0bfd.

I'm sorry, Correct the 186th line of the source code ble_nus_c_toppan.c as follows Please check.

#if 0
To
#if 1

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Fri, 15 Sep 2017 10:14:28 GMT

Which SDK are you using?

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Fri, 15 Sep 2017 09:31:28 GMT

Thank you for your help. SoftDevice is s132_nrf52_4.0.2_softdevice.hex. Please set ble_nus_c/ble_nus_c_toppan.[ch] to components\ble\ble_services . prg.zip

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Fri, 15 Sep 2017 08:52:52 GMT

Edit your question and use the paper clip icon. Please upload complete project. Also let me know which SDK and SoftDevice you are using.

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Fri, 15 Sep 2017 08:04:44 GMT

Yes, how can I send a file?

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Fri, 15 Sep 2017 08:00:33 GMT

Would it be possible for you to share your complete project so I can test it here?

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Thu, 14 Sep 2017 12:19:36 GMT

I see. I'm not sure why it is NULL. It is a bit difficult to say without knowing what kind of modifications you have made to your code.

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Thu, 14 Sep 2017 01:05:50 GMT

Thank you for your reply. What I added is as follows.

■added

uart_uuid.type = p_ble_nus_c->uuid_type; uart_uuid.uuid = 0x0001;

err_code = ble_db_discovery_evt_register(&uart_uuid);

in function ble_nus_c_init

■added

else if (p_evt->evt_type == BLE_DB_DISCOVERY_COMPLETE &&
    p_evt->params.discovered_db.srv_uuid.uuid == 0x0001 &&
    p_evt->params.discovered_db.srv_uuid.type == p_ble_nus_c->uuid_type)
{
	.....

in function ble_nus_c_on_db_disc_evt

■added

uint16_t nus_rx_handle2;      /**< Handle of the NUS RX characteristic as provided by a discovery. */

to struct ble_nus_c_handles_t

I think there are other things I have to do, I do not know what it is.

Is there a sample source code for multiservice?

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Wed, 13 Sep 2017 10:16:44 GMT

Exactly which function returns the error? ble_nus_c_handles_assign()?

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Wed, 13 Sep 2017 09:18:54 GMT

I knew the reason of reset. p_ble_nus_evt->handles is NULL in function ble_nus_c_evt_handler But I do not know why p_ble_nus_evt->handles is NULL.

RE: Central device can not find 2 services(0x1001,0x0001)

yamazaki seiji — Tue, 12 Sep 2017 09:12:35 GMT

I found both services by LightBlue application of android. I will try to do your advise later. Thank you for your help.

RE: Central device can not find 2 services(0x1001,0x0001)

Petter Myhre — Tue, 12 Sep 2017 08:58:03 GMT

Have you tested your peripheral with for example nRF Connect? Are you able to find both services there?

If you get a reset you probably have a call to APP_ERROR_CHECK() with an error code somewhere.

I'm not sure what SDK you are using, but you should turn off compiling optimizations, define DEBUG, and put a breakpoint in the app_error_handler(). Then you can see an error code, a line number and a file name.

See this for more information.