Diff: SPI.h

Revision:

0:82220227f4fa

Child:

1:6b7f447ca868

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SPI.h	Tue Apr 08 14:12:21 2008 +0000
@@ -0,0 +1,79 @@
+/* mbed Microcontroller Library - SPI
+ * Copyright (c) 2007-2008, sford
+ */
+ 
+#ifndef MBED_SPI_H
+#define MBED_SPI_H
+
+#include "Base.h"
+#include "LPC2300.h"
+
+namespace mbed {
+
+/* Class: SPI
+ *  A SPI Master, used for communicating with SPI slave devices
+ */ 
+class SPI : public Base {
+
+public:
+
+	/* Group: Configuration Methods */
+	
+	/* Constructor: SPI
+	 *  Create a SPI master connected to the specified pins
+	 *
+	 * Variables:
+	 *  mosi - SPI Master Out, Slave In pin
+	 *  miso - SPI Master In, Slave Out pin
+	 *  sclk - SPI Clock pin
+     *
+	 * Pin Options:
+	 *  (5, 6, 7) or (11, 12, 13)
+	 */
+	SPI(int mosi, int miso, int sclk);
+	
+	/* Function: format
+	 *  Set the transmission format
+	 *
+	 * Variables:
+	 *  bits - Number of bits per frame (4 - 16, default = 8)
+	 *  polarity - Clock polarity, 0 = Steady state low (default), 1 = Steady state high  
+	 *  phase - Clock phase, 0 = Capture on first edge (default), 1 = Capture on second edge
+	 */
+	void format(int bits = 8, int polarity = 0, int phase = 0);
+	
+	/* Function: frequency
+	 *  Set the bus clock frequency
+	 *
+	 * Variables:
+	 *  hz - SCLK frequency in hz (default = 1MHz)
+	 */
+	void frequency(int hz = 1000000);
+	
+	/* Group: Access Methods */
+		
+	/* Function: write
+	 *  Write to the SPI Slave and return the response
+	 *
+     * Variables:
+     *  value - Data to be sent to the SPI slave
+     *  returns - Response from the SPI slave
+	 */
+  	int write(int value);
+
+protected:
+
+	void configure();
+	
+	int _id;
+
+	int _uid;
+	static int _uidcounter;
+		
+	int _bits, _polarity, _phase, _hz;
+	static int _config[2];	
+};
+
+}
+
+#endif
\ No newline at end of file