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53 lines
2.1 KiB
Plaintext
53 lines
2.1 KiB
Plaintext
4 years ago
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/*
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ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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/**
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* @defgroup HAL_FLASH Generic Flash Interface
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* @brief HAL Generic Flash Driver Interface.
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*
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* @section flash_1 Driver State Machine
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* The flash driver implements a state machine internally, not all the driver
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* functionalities can be used in any moment, any transition not explicitly
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* shown in the following diagram has to be considered an error and shall
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* be captured by an assertion (if enabled).
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* @dot
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digraph example {
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rankdir="LR";
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node [shape=circle, fontname=Helvetica, fontsize=8, fixedsize="true", width="0.9", height="0.9"];
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edge [fontname=Helvetica, fontsize=8];
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stop [label="FLS_STOP\nLow Power"];
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uninit [label="FLS_UNINIT", style="bold"];
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ready [label="FLS_READY\nClock Enabled"];
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read [label="FLS_READ\nReading"];
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pgm [label="FLS_PGM\nProgramming"];
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erase [label="FLS_ERASE\nErasing"];
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uninit -> stop [label=" xxxInit()", constraint=false];
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stop -> stop [label=" xxxStop()"];
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stop -> ready [label=" xxxStart()"];
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ready -> stop [label=" xStop()"];
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ready -> read [label=" flashRead()\nflashVerifyErase()"];
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read -> ready [label=" return"];
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ready -> pgm [label=" flashProgram()"];
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pgm -> ready [label=" return"];
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ready -> erase [label=" \n\nflashEraseAll()\nflashEraseSector()"];
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erase -> ready [label=" flashQueryErase()\nFLASH_NO_ERROR\nFLASH_ERROR_*"];
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erase -> erase [label=" flashQueryErase()\nflashProgram()\nflashRead()\nFLASH_BUSY_ERASING"];
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}
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* @enddot
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*
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* @ingroup HAL_ABSTRACT_PERIPHERALS
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*/
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