1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
|
/**
* @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;
|
