12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849 |
- /**
- * @file QSPIFlash.h
- *
- * The MIT License (MIT)
- *
- * Copyright (c) 2019 Ha Thach and Dean Miller for Adafruit Industries LLC
- *
- * Permission is hereby granted, free of charge, to any person obtaining a copy
- * of this software and associated documentation files (the "Software"), to deal
- * in the Software without restriction, including without limitation the rights
- * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
- * copies of the Software, and to permit persons to whom the Software is
- * furnished to do so, subject to the following conditions:
- *
- * The above copyright notice and this permission notice shall be included in
- * all copies or substantial portions of the Software.
- *
- * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
- * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
- * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
- * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
- * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
- * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
- * THE SOFTWARE.
- *
- * Derived from Adafruit_SPIFlash class with no SdFat references
- */
- #pragma once
-
- #include <Adafruit_SPIFlashBase.h>
-
- // This class extends Adafruit_SPIFlashBase by adding caching support.
- //
- // This class will use 4096 Bytes of RAM as a block cache.
- class QSPIFlash {
- public:
- static void begin();
- static size_t size();
- static uint8_t readByte(const uint32_t address);
- static void writeByte(const uint32_t address, const uint8_t v);
- static void flush();
-
- private:
- static Adafruit_SPIFlashBase * _flashBase;
- static uint8_t _buf[SFLASH_SECTOR_SIZE];
- static uint32_t _addr;
- };
-
- extern QSPIFlash qspi;
|