Hi All:
I try to create a custom Characteristic,with nrf_ble_qwr,
but when set is_defered_write = 1;
connect with NRF_CONNECT APP,I can't write under than 20 byte,if under than 20 byte,write will lock on busy,
but when set is_defered_write = 0;
I can't write over than 20 byte
Does anyone know how to fix it?
(NRF_SDH_BLE_GATT_MAX_MTU_SIZE need hold on 23)
// Add the Custom Characteristic.
memset(&add_char_params, 0, sizeof(add_char_params));
add_char_params.uuid = BLE_UUID_CUSTOM;
add_char_params.uuid_type = p_cuss->uuid_type;
add_char_params.max_len = BLE_CUSTOM_MAX_LEN;
add_char_params.is_var_len = true;
add_char_params.init_len = 8;
add_char_params.p_init_value = init_value_encoded;
add_char_params.char_props.read = 1;
add_char_params.char_props.write = 1;
add_char_params.char_props.write_wo_resp = 1;
#if NRF_BLE_QWR_MAX_ATTR
add_char_params.is_defered_write = 1;
#endif//#if NRF_BLE_QWR_MAX_ATTR
add_char_params.read_access = SEC_OPEN;
add_char_params.write_access = SEC_OPEN;
err_code = characteristic_add(p_cuss->service_handle, &add_char_params, &p_cuss->custom_handles);
if (err_code != NRF_SUCCESS)
{
return err_code;
}