Matthew Sims / mbed

Lab 1 Program C

Dependents:   Lab1C

Fork of mbed by -deleted-

SPI.h@0:82220227f4fa, 2008-04-08 (annotated)

Committer:
simon.ford@mbed.co.uk
Date:
Tue Apr 08 14:12:21 2008 +0000
Revision:
0:82220227f4fa
Child:
1:6b7f447ca868
A first develoment release of the mbed libraries

Who changed what in which revision?

UserRevisionLine numberNew contents of line
simon.ford@mbed.co.uk 0:82220227f4fa 1 /* mbed Microcontroller Library - SPI
simon.ford@mbed.co.uk 0:82220227f4fa 2 * Copyright (c) 2007-2008, sford
simon.ford@mbed.co.uk 0:82220227f4fa 3 */
simon.ford@mbed.co.uk 0:82220227f4fa 4
simon.ford@mbed.co.uk 0:82220227f4fa 5 #ifndef MBED_SPI_H
simon.ford@mbed.co.uk 0:82220227f4fa 6 #define MBED_SPI_H
simon.ford@mbed.co.uk 0:82220227f4fa 7
simon.ford@mbed.co.uk 0:82220227f4fa 8 #include "Base.h"
simon.ford@mbed.co.uk 0:82220227f4fa 9 #include "LPC2300.h"
simon.ford@mbed.co.uk 0:82220227f4fa 10
simon.ford@mbed.co.uk 0:82220227f4fa 11 namespace mbed {
simon.ford@mbed.co.uk 0:82220227f4fa 12
simon.ford@mbed.co.uk 0:82220227f4fa 13 /* Class: SPI
simon.ford@mbed.co.uk 0:82220227f4fa 14 * A SPI Master, used for communicating with SPI slave devices
simon.ford@mbed.co.uk 0:82220227f4fa 15 */
simon.ford@mbed.co.uk 0:82220227f4fa 16 class SPI : public Base {
simon.ford@mbed.co.uk 0:82220227f4fa 17
simon.ford@mbed.co.uk 0:82220227f4fa 18 public:
simon.ford@mbed.co.uk 0:82220227f4fa 19
simon.ford@mbed.co.uk 0:82220227f4fa 20 /* Group: Configuration Methods */
simon.ford@mbed.co.uk 0:82220227f4fa 21
simon.ford@mbed.co.uk 0:82220227f4fa 22 /* Constructor: SPI
simon.ford@mbed.co.uk 0:82220227f4fa 23 * Create a SPI master connected to the specified pins
simon.ford@mbed.co.uk 0:82220227f4fa 24 *
simon.ford@mbed.co.uk 0:82220227f4fa 25 * Variables:
simon.ford@mbed.co.uk 0:82220227f4fa 26 * mosi - SPI Master Out, Slave In pin
simon.ford@mbed.co.uk 0:82220227f4fa 27 * miso - SPI Master In, Slave Out pin
simon.ford@mbed.co.uk 0:82220227f4fa 28 * sclk - SPI Clock pin
simon.ford@mbed.co.uk 0:82220227f4fa 29 *
simon.ford@mbed.co.uk 0:82220227f4fa 30 * Pin Options:
simon.ford@mbed.co.uk 0:82220227f4fa 31 * (5, 6, 7) or (11, 12, 13)
simon.ford@mbed.co.uk 0:82220227f4fa 32 */
simon.ford@mbed.co.uk 0:82220227f4fa 33 SPI(int mosi, int miso, int sclk);
simon.ford@mbed.co.uk 0:82220227f4fa 34
simon.ford@mbed.co.uk 0:82220227f4fa 35 /* Function: format
simon.ford@mbed.co.uk 0:82220227f4fa 36 * Set the transmission format
simon.ford@mbed.co.uk 0:82220227f4fa 37 *
simon.ford@mbed.co.uk 0:82220227f4fa 38 * Variables:
simon.ford@mbed.co.uk 0:82220227f4fa 39 * bits - Number of bits per frame (4 - 16, default = 8)
simon.ford@mbed.co.uk 0:82220227f4fa 40 * polarity - Clock polarity, 0 = Steady state low (default), 1 = Steady state high
simon.ford@mbed.co.uk 0:82220227f4fa 41 * phase - Clock phase, 0 = Capture on first edge (default), 1 = Capture on second edge
simon.ford@mbed.co.uk 0:82220227f4fa 42 */
simon.ford@mbed.co.uk 0:82220227f4fa 43 void format(int bits = 8, int polarity = 0, int phase = 0);
simon.ford@mbed.co.uk 0:82220227f4fa 44
simon.ford@mbed.co.uk 0:82220227f4fa 45 /* Function: frequency
simon.ford@mbed.co.uk 0:82220227f4fa 46 * Set the bus clock frequency
simon.ford@mbed.co.uk 0:82220227f4fa 47 *
simon.ford@mbed.co.uk 0:82220227f4fa 48 * Variables:
simon.ford@mbed.co.uk 0:82220227f4fa 49 * hz - SCLK frequency in hz (default = 1MHz)
simon.ford@mbed.co.uk 0:82220227f4fa 50 */
simon.ford@mbed.co.uk 0:82220227f4fa 51 void frequency(int hz = 1000000);
simon.ford@mbed.co.uk 0:82220227f4fa 52
simon.ford@mbed.co.uk 0:82220227f4fa 53 /* Group: Access Methods */
simon.ford@mbed.co.uk 0:82220227f4fa 54
simon.ford@mbed.co.uk 0:82220227f4fa 55 /* Function: write
simon.ford@mbed.co.uk 0:82220227f4fa 56 * Write to the SPI Slave and return the response
simon.ford@mbed.co.uk 0:82220227f4fa 57 *
simon.ford@mbed.co.uk 0:82220227f4fa 58 * Variables:
simon.ford@mbed.co.uk 0:82220227f4fa 59 * value - Data to be sent to the SPI slave
simon.ford@mbed.co.uk 0:82220227f4fa 60 * returns - Response from the SPI slave
simon.ford@mbed.co.uk 0:82220227f4fa 61 */
simon.ford@mbed.co.uk 0:82220227f4fa 62 int write(int value);
simon.ford@mbed.co.uk 0:82220227f4fa 63
simon.ford@mbed.co.uk 0:82220227f4fa 64 protected:
simon.ford@mbed.co.uk 0:82220227f4fa 65
simon.ford@mbed.co.uk 0:82220227f4fa 66 void configure();
simon.ford@mbed.co.uk 0:82220227f4fa 67
simon.ford@mbed.co.uk 0:82220227f4fa 68 int _id;
simon.ford@mbed.co.uk 0:82220227f4fa 69
simon.ford@mbed.co.uk 0:82220227f4fa 70 int _uid;
simon.ford@mbed.co.uk 0:82220227f4fa 71 static int _uidcounter;
simon.ford@mbed.co.uk 0:82220227f4fa 72
simon.ford@mbed.co.uk 0:82220227f4fa 73 int _bits, _polarity, _phase, _hz;
simon.ford@mbed.co.uk 0:82220227f4fa 74 static int _config[2];
simon.ford@mbed.co.uk 0:82220227f4fa 75 };
simon.ford@mbed.co.uk 0:82220227f4fa 76
simon.ford@mbed.co.uk 0:82220227f4fa 77 }
simon.ford@mbed.co.uk 0:82220227f4fa 78
simon.ford@mbed.co.uk 0:82220227f4fa 79 #endif