How to reply with more byte using BLE_GATTS_AUTHORIZE_TYPE_READ

RE: How to reply with more byte using BLE_GATTS_AUTHORIZE_TYPE_READ

inghowe83 — Mon, 10 Jun 2019 02:18:54 GMT

I have resolve the problem!

What I did is under sd_ble_gatts_characteristic_add()

increase attr_char_value.max_len to the desired size!

RE: How to reply with more byte using BLE_GATTS_AUTHORIZE_TYPE_READ

inghowe83 — Sun, 09 Jun 2019 16:01:10 GMT

Hi,

Yes. There are error return from sd_ble_gatts_rw_authorize_reply, the error value is 7"NRF_ERROR_INVALID_PARAM". when I put auth_reply.params.read.len = 2(the size of even_count array is 2).

        uint8_t even_count[2];
                  switch(p_auth_req->request.read.handle)
                  {
                    case  BLE_EVENT_DATA_COUNT_HANDLES:

                      printf("BLE_EVENT_DATA_COUNT_HANDLES\n");
                      even_count[0] = 0xFF;
                      even_count[1] = 0xEE;
                      //ptr = getEventCount(even_count);
                      //auth_reply.params.read.len = sizeof(even_count); not working when put len more than 1
                      auth_reply.params.read.len = sizeof(even_count);  
                      auth_reply.params.read.p_data = (uint8_t *)&even_count[0];

RE: How to reply with more byte using BLE_GATTS_AUTHORIZE_TYPE_READ

Mttrinh — Thu, 06 Jun 2019 10:51:03 GMT

Hi,

What do you mean by "not working when put len more than 1"? Do you get wrong data? Do you get any error codes?