How Can I Implement Whiteist In SDK 15.2.0

[Omar]

i'm trying to build a scanner that scan only a list of devices , and i want to use a whitelist .

i didn't understand the concept of the new whitelisting in SDK 15.2.0, i tried to use ble_app_uart example but it didn't work

the programme that i want to implement very simple just a scanner with withlist , please help me on that

thanks

[Simon]

How do you set the whitelist? Could you share the main.c file?

Best regards,

Simon

[Omar]

sorry i'm using ble_app_hrs_c exemple not ble_app_uart .

i didn't know how to use it ,i just add adresses to whitelist buffer 

ble_gap_addr_t       dkAdrs1     = {0,BLE_GAP_ADDR_TYPE_RANDOM_STATIC,{0x03,0xCC,0xD2,0xF4,0x30,0xEB}};
ble_gap_addr_t       dkAdrs2     = {0,BLE_GAP_ADDR_TYPE_RANDOM_STATIC,{0xEC,0xAD,0xD6,0xA2,0x56,0x67}};//EC:AD:D6:A2:56:67
 
static void on_whitelist_req(void)
{
    ret_code_t err_code;

   // Whitelist buffers.
    ble_gap_addr_t whitelist_addrs[8]={dkAdrs1,dkAdrs2};
    ble_gap_irk_t  whitelist_irks[8];

    memset(whitelist_addrs, 0x00, sizeof(whitelist_addrs));
    memset(whitelist_irks,  0x00, sizeof(whitelist_irks));
    
      
    uint32_t addr_cnt = (sizeof(whitelist_addrs) / sizeof(ble_gap_addr_t));
    uint32_t irk_cnt  = (sizeof(whitelist_irks)  / sizeof(ble_gap_irk_t));

    // Reload the whitelist and whitelist all peers.
    whitelist_load();

    // Get the whitelist previously set using pm_whitelist_set().
    err_code = pm_whitelist_get(whitelist_addrs, &addr_cnt,
                                whitelist_irks,  &irk_cnt);

    if (((addr_cnt == 0) && (irk_cnt == 0)) ||
        (m_whitelist_disabled))
    {
        // Don't use whitelist.
        NRF_LOG_INFO("=> Don't use whitelist");
        err_code = nrf_ble_scan_params_set(&m_scan, NULL);
        APP_ERROR_CHECK(err_code);
    }
}

[Simon]

What you are doing here will not set the whitelist. The arrays whitelist_addrs and whitelist_irks are sent into the function pm_whitelist_get(..), and that function simply store the whitelist into the arrays (addresses and the belonging irk's), which is previously set using pm_whitelist_set().

However, the whitelist is set inside the function whitelist_load() thorugh the function pm_whitelist_set(). Normally a whitelist is set based on the bonded peers stored in flash, and you can see that this is done first by looking inside the function whitelist_load(). First the peer ID's are loaded from flash through peer_list_get(), and those peers are then whitelisted through pm_whitelist_set().

It seems like you want to set the whitelist manually, and here is a link that explains how to do that.

Best regards,

Simon

[Omar]

thank you
yes . i want to set the whitelist manually , i follow the link but it didn't work in SDK 15.2.

for example : there is no type named   ble_gap_whitelist_t

how can i set whitelist manually , is there an example in SDK 15.2

[Simon]

I am sorry, the whitelist in the tutorial I pointed you to was using an older SDK. In SDK 15.2 you have to use the function sd_ble_gap_whitelist_set(). Here is a thread that demonstrates how to do it with SDK 13, and I think the approach is the same with SDK 15.2.

Please tell me if you encounter any more problems.

Best regards,

Simon

[Omar]

thanks .

I think you misunderstood me.

i'm trying to build a scanner with whitelist , which means a ble central (gateway) , scan only a list of advertiser (non-connectable advertiser).

not an advertiser that advertise with whitelist .

please help me on that , i just need an example of enabling whitelist and adding the list of addresses

[Simon]

It doesn't matter if you are scanning or advertising, it is set the same way. You use the function sd_ble_gap_whitelist_set() for both cases.

Best regards,

Simon

[Omar]

okay ! thanks 

i used sd_ble_gap_whitelist_set() inside void whitelist_load() function ,  an error is apears 

 

[Simon]

The error 0x3202 is the error BLE_ERROR_GAP_INVALID_BLE_ADDR, and the explanatory text is the following:

"The upper two bits of the address do not correspond to the specified address type"

Please check your address.

Best regards,

Simon