Diff: SPIHalfDuplex.h

Revision:

44:24d45a770a51

Parent:

43:e2ed12d17f06

Child:

45:3d775a932e1d

--- a/SPIHalfDuplex.h	Fri Oct 26 17:40:46 2012 +0100
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,112 +0,0 @@
-/* mbed Microcontroller Library - SPIHalfDuplex
- * Copyright (c) 2010-2011 ARM Limited. All rights reserved.
- */
-
-#ifndef MBED_SPIHALFDUPLEX_H
-#define MBED_SPIHALFDUPLEX_H
-
-#include "device.h"
-
-#if DEVICE_SPI
-
-#include "SPI.h"
-
-namespace mbed {
-
-/** A SPI half-duplex master, used for communicating with SPI slave devices
- *  over a shared data line.
- *
- *  The default format is set to 8-bits for both master and slave, and a
- *  clock frequency of 1MHz
- *
- *  Most SPI devies will also require Chip Select and Reset signals. These
- *  can be controlled using <DigitalOut> pins.
- *
- *  Although this is for a shared data line, both MISO and MOSI are defined,
- *  and should be tied together externally to the mbed. This class handles
- *  the tri-stating of the MOSI pin.
- *
- * Example:
- * @code
- * // Send a byte to a SPI half-duplex slave, and record the response
- *
- * #include "mbed.h"
- * 
- * SPIHalfDuplex device(p5, p6, p7) // mosi, miso, sclk
- *
- * int main() {
- *     int respone = device.write(0xAA);
- * }
- * @endcode
- */
-
-class SPIHalfDuplex : public SPI {
-
-public:
-    
-    /** Create a SPI half-duplex master connected to the specified pins
-     *
-     *  Pin Options:
-     *    (5, 6, 7) or (11, 12, 13)
-     *
-     *  mosi or miso can be specfied as NC if not used
-     *
-     *  @param mosi SPI Master Out, Slave In pin
-     *  @param miso SPI Master In, Slave Out pin
-     *  @param sclk SPI Clock pin
-     *  @param name (optional) A string to identify the object
-     */
-    SPIHalfDuplex(PinName mosi, PinName miso, PinName sclk,
-        const char *name = NULL);
-
-#if 0 // Inherited from SPI - documentation only
-    /** Configure the data transmission format
-     *
-     *  @param bits Number of bits per SPI frame (4 - 16)
-     *  @param mode Clock polarity and phase mode (0 - 3)
-     *
-     * @code
-     * mode | POL PHA
-     * -----+--------
-     *   0  |  0   0
-     *   1  |  0   1
-     *   2  |  1   0
-     *   3  |  1   1
-     * @endcode
-     */
-    void format(int bits, int mode = 0);
-
-    /** Set the spi bus clock frequency
-     *
-     *  @param hz SCLK frequency in hz (default = 1MHz)
-     */
-    void frequency(int hz = 1000000);
-#endif
-
-    /** Write to the SPI Slave and return the response
-     *
-     *  @param value Data to be sent to the SPI slave
-     *
-     *  @returns
-     *    Response from the SPI slave
-     */
-    virtual int write(int value);
-    
-    /** Set the number of databits expected from the slave, from 4-16
-     *
-     *  @param sbits Number of expected bits in the slave response
-     */
-    void slave_format(int sbits);
-
-protected:
-    PinName _mosi;
-    PinName _miso;
-    int     _sbits;
-
-}; // End of class
-
-} // End of namespace mbed
-
-#endif
-
-#endif