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readme.md

SD Library for LaunchPad LM4F / TM4C

  • Adaptation for LaunchPad LM4F / TM4C

Rei Vilo - May 20, 2014

  • SD - a slightly more friendly wrapper for sdfatlib

(C) Copyright 2010 SparkFun Electronics

  • Arduino SdFat Library

Copyright (C) 2009 by William Greiman


Requirements

SD-card in SPI mode requires a 512 bytes buffer for read-write operations.

Energia 12

Boards

  • LaunchPad Stellaris LM4F120 — tested
  • LaunchPad Tiva C Series TM4C123 — tested
  • LaunchPad MSP432P401R — tested
  • LaunchPad Connected TM4C129 — not tested

Other candidates

  • LaunchPad MSP430F5529 — not tested
  • LaunchPad MSP430FR5969 — not tested

Initialise the SD-card

Parameters

  • chipSelectPin pin number for SD-card chip select
  • sckRateID SPI speed, optional, default=SPI_HALF_SPEED
  • SPI_Port SPI port number, optional, default=-1=none
  • cardDetectionPin card detection pin number, optional, default=-1=none
  • level expected level when SD-card available, default=LOW

Result

  • true is success, false otherwise
    boolean begin(uint8_t chipSelectPin,
                  uint8_t sckRateID = SPI_HALF_SPEED,
                  int8_t SPI_Port = -1,
                  int8_t cardDetectionPin = -1,
                  int8_t level = LOW);
    

SD-card hardware detection

Result

  • true is SD-card inserted, false otherwise

Uses previously defined cardDetectionPin and level

    uint8_t detectSD();

Licence

Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License

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SD Library for LaunchPad LM4F / TM4C

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