squash again all the commit.
component/bt: Change all the gattc API && bta gattc layer.
component/bt: Debug the code and change the btc_ble_gattc_get_db method.
component/bt: Change the gatt read API interface.
component/bt: Reconstruction the BTA_gattc_cache code.
component/bt: Change back the bluedroid_get_status to marco.
component/bt: Added the serch service res start_handle & end_handle to the result.
component/bt: Change the gattc docs format.
component/bt: Change the docs format.
component/bt: fix the read char value bug.
component/bt: change the gattc_get_attr_count method.
component/bt: Change back the bta_gattc write ccc code.
component/bt: Change the gattc api docs format
component/bt: Change the gattc API docs.
component/bt: Change the prepare write descriptor method to avoid the exection.
Component/bt: modify gatt clinet demo with new API
component/bt: Change the p_src_data->read.p_value to avoid exection.
compoent/bt: Change the bugfix of gattc unreg for the notify.
Modify gattc security demo
component/bt: Change the log error.
Component/bt: modify gattc_multi_connect demo
componnet/bt: Change the bta_gattc_cache sdp include.
component/bt: Change the start_handle & end_handle not from the service.
component/bt: Change the gattc API docs.
component/bt: Change the return issues.
component/bt: Fixed the include service bug.
component/bt: Modify gattc_multi_connect demo , add scan log
component/bt: Fixed the BTA_GATTC_GetIncludeService start handle & end handle error bug.
component/bt: Fix the invalid handle of the get all char issues.
component/bt: Fix the bug with get_db_size_with_type of the start handle & end_handle not correted issue.
component/bt: Fixed the get secondly service num not correct issue.
component/bt: Fixed the last service handle not correted issue.
1. Occupy conn[9] for adv. The max connection number of bluetooth controller decrease to 9. (Previously, it is 10)
2. modify the enum of setting BLE TX power corresponding to connection's.
3. fix libbtdm_app.a cwitch jump table
ESPNOW is a kind of WiFi communication bettween WiFi devices, no
matter they are connected to each other or not. Once two WiFi
devices are paired, they can send data to or receive data from
each other. The data is transmitted in action frame which can
be encrypted with CCMP method. ESPNOW also support mutilcast frame
transmitting.
When debugging crashes caused by flash cache access errors, OpenOCD may
request the value of uxTopUsedPriority when cache is disabled. Placing
it into IRAM to avoid an error in such case.
Since 9a8c0392, XTAL frequency is set to 40MHz by default, and users
of 26MHz boards need to select 26MHz manually. Most users are not aware
of this change, and existing getting started guides do not mention that
XTAL frequency needs to be set for some boards. So users are left with
garbage output from UART without any clue what to check.
This change adds a warning in case specific XTAL frequency was set, and
it does not match automatically detected one. This should help users
fix the issue.
