Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

vishal — Mon, 30 Jul 2018 13:20:37 GMT

Go into ble_nus_c.c source file and replaced with:

#define NRF_LOG_MODULE_NAME ble_nus

#define NRF_LOG_MODULE_NAME ble_nus_c

To fix multiple definitions errors

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

kishor babu — Mon, 30 Jul 2018 13:16:49 GMT

where i need to make this change?

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

vishal — Fri, 27 Jul 2018 09:17:09 GMT

Great Jorgen,
solved our issue by changing in ble_nus_c.c to #define NRF_LOG_MODULE_NAME ble_nus_c.

Thank you so much....for giving information because we have lots of debugging but was unable to found.

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

Jørgen Holmefjord — Fri, 27 Jul 2018 09:00:24 GMT

Hi,

This is a known issue. Please change ble_nus_c.c:51 to #define NRF_LOG_MODULE_NAME ble_nus_c

Best regards,
Jørgen

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

vishal — Wed, 25 Jul 2018 11:01:24 GMT

Thanks for your reply.

Actually i have read and understand whole code but unable to find where the multiple definitions has defined.

will you please help me How i can identify multiple definitions issue and used one of them for well working. Because compiler not showing any line number or whatever where exactly multiple definitions defined.

Thanks

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

RK — Wed, 25 Jul 2018 10:33:58 GMT

No that is not the right way to solve the multiple definitions issue. The right way to solve it is to find why you have two routines named the same. Most likely you have two routines named the same which do entirely different things and the linker has just picked one of them so it doesn't work for the other case.

You need to actually read the code you're compiling and work out where the symbols are coming from, There is no magic wand, you have to do the work.

RE: Error: Multiple definition when using 2 BLE Services BLE_NUS and BLE_NUS_C

vishal — Wed, 25 Jul 2018 09:58:10 GMT

Hello,

I have solved this error by modified Segger setting which is go to ---> project--->option---->linker---->allow to multiple definition replaced Yes.

Is this above method is right way to solve this multi definitions issues.

After compiling program build is successful but now problem is when i connect Nordic UART android app to central is connected and notification also enabled. Android phone connection is working well able to send message to central device. But after disconnect app connection central device is already scanning and our sensor device is connected to central but not sending data to central.

Now getting following error:

<error> nrf_ble_gatt: sd_ble_gatts_exchange_mtu_reply() returned NRF_ERROR_INVALID_PARAM.
<info> app: Discovery complete.
<info> app: Connected to device with Nordic UART Service.
<info> app: Disconnected.
<info> app: NUS central link 0x0 disconnected (reason: 0x13

Our sensor device is connected to central then got the above error and after few second it is disconnected automatically.

Another thing is when i connect first sensor device to central is working and also sensor device sent all data to central. But if android phone connect then try to connect sensor device is not working got above error.

Why this happen please help me to solved this issue.

Thanks...!!