error: #167: argument of type "void (*)(ble_db_discovery_evt_t *)" is incompatible with parameter of type "ble_db_discovery_init_t *"

[Sonicwasd]

Hi All,

I'm trying send custom board(nrf52832) sensor data to DK by ble uart and multilink.

When I build the code in Keil. I got the message: 

..\..\..\main.c(544): error:  #167: argument of type "void (*)(ble_db_discovery_evt_t *)" is incompatible with parameter of type "ble_db_discovery_init_t *"

Can someone help me? Please....

Thank you all.

[Jørgen Holmefjord]

Hi,

What does line 544 in your main.c look like? Seems like you are passing a pointer, while the object you are passing the pointer to is already a pointer.

Best regards,
Jørgen

[Sonicwasd]

Hi,

I found the same code run in Keil will show error, but in SES will show warning.

This is line 530 to 546, I think something wrong in this part.

static void db_disc_handler(ble_db_discovery_evt_t * p_evt)

{

NRF_LOG_DEBUG("call to ble_nus_on_db_disc_evt for instance %d and link 0x%x!",

p_evt->conn_handle,

p_evt->conn_handle);

ble_nus_c_on_db_disc_evt(&m_ble_nus_c[p_evt->conn_handle], p_evt);

}

/** @brief Database discovery initialization.

*/

static void db_discovery_init(void)

{

ret_code_t err_code = ble_db_discovery_init(db_disc_handler);

APP_ERROR_CHECK(err_code);

}

This is my reference link : 

https://zechs.taipei/?p=242

Thanks for your reply.

[Jørgen Holmefjord]

Hi,

Which SDK version are you compiling the example in? The reference code that you linked is for SDK 15.2.0. The ble_db_discovery_init() API have changed from SDK 15.x.0 to SDK 17.0.x: 

// SDK 15.2.0:
uint32_t 	ble_db_discovery_init (ble_db_discovery_evt_handler_t evt_handler)

// SDK 17.0.2:
uint32_t 	ble_db_discovery_init (ble_db_discovery_init_t *p_db_init)

If you want to compile in SDK 17.0.2, you need to modify the code with the correct API, see the migration guide in SDK 16.0.0.

Best regards,
Jørgen

[Sonicwasd]

It's a great hint.

I use SDK 16.0 before.

And now I'm using SDK 15.3

I'll try it again after my SPI function working.

Thanks a lot.

[Sonicwasd]

It's a great hint.

I use SDK 16.0 before.

And now I'm using SDK 15.3

I'll try it again after my SPI function working.

Thanks a lot.