SdSpiDriver.h File Reference

SpiDriver classes. More...

#include "SysCall.h"

Include dependency graph for SdSpiDriver.h:

This graph shows which files directly or indirectly include this file:

Classes
class	SdSpiAltDriver
	Optimized SPI class for access to SD and SDHC flash memory cards. More...
class	SdSpiConfig
	SPI card configuration. More...
class	SdSpiLibDriver
	SdSpiLibDriver - use standard SPI library. More...

Macros
#define	DEDICATED_SPI   0X80
#define	SD_SCK_HZ(maxSpeed)   SPISettings(maxSpeed, MSBFIRST, SPI_MODE0)
#define	SD_SCK_MHZ(maxMhz)   SPISettings(1000000UL*maxMhz, MSBFIRST, SPI_MODE0)
#define	SHARED_SPI   0
#define	SPI_DIV3_SPEED   SD_SCK_HZ(F_CPU/3)
#define	SPI_DIV6_SPEED   SD_SCK_HZ(F_CPU/6)
#define	SPI_EIGHTH_SPEED   SD_SCK_HZ(F_CPU/16)
#define	SPI_FULL_SPEED   SD_SCK_MHZ(50)
#define	SPI_HALF_SPEED   SD_SCK_HZ(F_CPU/4)
#define	SPI_QUARTER_SPEED   SD_SCK_HZ(F_CPU/8)
#define	SPI_SIXTEENTH_SPEED   SD_SCK_HZ(F_CPU/32)

Typedefs
typedef SdSpiLibDriver	SdSpiDriver

Detailed Description

SpiDriver classes.

Copyright (c) 20011-2017 Bill Greiman This file is part of the SdFs library for SD memory cards.

MIT License

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.

Macro Definition Documentation

#define DEDICATED_SPI   0X80

The SD is the only device on the SPI bus.

#define SD_SCK_HZ

(

maxSpeed

)

SPISettings(maxSpeed, MSBFIRST, SPI_MODE0)

SPISettings for SCK frequency in Hz.

#define SD_SCK_MHZ

(

maxMhz

)

SPISettings(1000000UL*maxMhz, MSBFIRST, SPI_MODE0)

SPISettings for SCK frequency in MHz.

#define SHARED_SPI   0

SPI bus is share with other devices.

#define SPI_DIV3_SPEED   SD_SCK_HZ(F_CPU/3)

Set SCK rate to F_CPU/3 for Due

#define SPI_DIV6_SPEED   SD_SCK_HZ(F_CPU/6)

Set SCK rate to F_CPU/6 for Due

#define SPI_EIGHTH_SPEED   SD_SCK_HZ(F_CPU/16)

Set SCK rate to F_CPU/16.

#define SPI_FULL_SPEED   SD_SCK_MHZ(50)

Set SCK to max rate of F_CPU/2.

#define SPI_HALF_SPEED   SD_SCK_HZ(F_CPU/4)

Set SCK rate to F_CPU/4.

#define SPI_QUARTER_SPEED   SD_SCK_HZ(F_CPU/8)

Set SCK rate to F_CPU/8.

#define SPI_SIXTEENTH_SPEED   SD_SCK_HZ(F_CPU/32)

Set SCK rate to F_CPU/32.

Typedef Documentation

typedef SdSpiLibDriver SdSpiDriver

SdFat uses Arduino library SPI.