upload initial port

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diff --git a/ChibiOS_20.3.2/os/hal/dox/hal.dox b/ChibiOS_20.3.2/os/hal/dox/hal.dox
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+/*

+    ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio

+

+    Licensed under the Apache License, Version 2.0 (the "License");

+    you may not use this file except in compliance with the License.

+    You may obtain a copy of the License at

+

+        http://www.apache.org/licenses/LICENSE-2.0

+

+    Unless required by applicable law or agreed to in writing, software

+    distributed under the License is distributed on an "AS IS" BASIS,

+    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.

+    See the License for the specific language governing permissions and

+    limitations under the License.

+*/

+

+/**

+ * @defgroup HAL HAL Driver

+ * @brief   Hardware Abstraction Layer.

+ * @details The HAL (Hardware Abstraction Layer) driver performs the system

+ *          initialization and includes the platform support code shared by

+ *          the other drivers. This driver does contain any API function

+ *          except for a general initialization function @p halInit() that

+ *          must be invoked before any HAL service can be used, usually the

+ *          HAL initialization should be performed immediately before the

+ *          kernel initialization.<br>

+ *          Some HAL driver implementations also offer a custom early clock

+ *          setup function that can be invoked before the C runtime

+ *          initialization in order to accelerate the startup time.

+ *

+ * @ingroup HAL_NORMAL_DRIVERS

+ */