Diff: PCA9532.h

Revision:

0:7993a61d8c59

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/PCA9532.h	Fri May 07 10:25:42 2010 +0000
@@ -0,0 +1,98 @@
+/* mbed PCF9532 LED Driver Library
+ *
+ * Copyright (c) 2010, cstyles (http://mbed.org)
+ *
+ * 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.
+ */
+
+#ifndef PCA9532_H
+#define PCA9532_H
+
+#include "mbed.h"
+
+/*
+ * register names
+ */
+ 
+#define PCA9532_REG_INPUT0 0
+#define PCA9532_REG_INPUT1 1
+#define PCA9532_REG_PSC0   2
+#define PCA9532_REG_PWM0   3
+#define PCA9532_REG_PSC1   4
+#define PCA9532_REG_PWM1   5
+#define PCA9532_REG_LS0    6
+#define PCA9532_REG_LS1    7
+#define PCA9532_REG_LS2    8
+#define PCA9532_REG_LS3    9
+
+/*
+ LED modes
+ */
+ 
+#define MODE_OFF  0
+#define MODE_ON   1
+#define MODE_PWM0 2
+#define MODE_PWM1 3
+
+class PCA9532 {
+
+public:
+
+    /*
+     * Constructor
+     * Pass the I2C pins being used, and the address
+     * The address bottom bit will be replaced by R/W bit
+     */
+    PCA9532(PinName sda, PinName scl, int addr);
+
+    /*
+     * SetLed(int led, int mode)
+     * Set the  LED (0-15) into the specified mode (0-3) (OFF, On, PWM0, PWM1)
+     */
+    int SetLed  (int led, int mode);
+
+    /*
+     * SetMode(int mask, int mode)
+     * Set the LED specified in the mask to the given mode
+     */     
+    int SetMode (int mask, int mode);
+
+    /*
+     * SetDuty(int channel, float duty)
+     * Set the duty cycle (0.0-1.0) of the specified PWM channel (0|1)
+     */     
+    int Duty (int channel, float duty);
+
+    /*
+     * SetPeriod(int channel, float duty)
+     * Set the period (0.0-1.0) of the specified PWM channel (0|1)
+     */     
+    int Period (int channel, float period);
+
+protected:
+
+    void _write(int reg, int data);
+    int _read(int reg);
+    int _addr;
+    I2C _i2c;
+
+};
+
+
+#endif