Diff: LED_Bar.h

Revision:

0:edcb13b58b4f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LED_Bar.h	Wed Jul 30 10:27:21 2014 +0000
@@ -0,0 +1,82 @@
+/*
+LED bar library V1.0
+2010 Copyright (c) Seeed Technology Inc. All right reserved.
+
+Original Author: LG
+Modify: Loovee, 2014-2-26
+User can choose which Io to be used.
+
+This library is free software; you can redistribute it and/or
+modify it under the terms of the GNU Lesser General Public
+License as published by the Free Software Foundation; either
+version 2.1 of the License, or (at your option) any later version.
+
+This library is distributed in the hope that it will be useful,
+but WITHOUT ANY WARRANTY; without even the implied warranty of
+MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+Lesser General Public License for more details.
+
+You should have received a copy of the GNU Lesser General Public
+License along with this library; if not, write to the Free Software
+Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
+*/
+
+#include "mbed.h"
+
+#ifndef LED_Bar_H
+#define LED_Bar_H
+
+#define CMDMODE 0x0000 // Work on 8-bit mode
+#define ON 0x00ff // 8-bit 1 data
+#define SHUT 0x0000 // 8-bit 0 data
+
+/**
+ * The LED_Bar interface
+ */
+class LED_Bar
+{
+
+public:
+    LED_Bar(PinName pinClk, PinName pinDta);
+
+    /**
+     * Set led single bit, a bit contrl a led
+     * @param index_bits which bit. if 0x05, then led 0 and led 3 will on, the others will off
+     */
+    void ledIndexBit(unsigned int index_bits);
+
+    /**
+     * Set level, frm 0 to 10.
+     * @param level Level 0 means all leds off while level 5 means 5led on and the other will off
+     */
+    void setLevel(int level);
+    
+    /**
+     * Control a single led
+     * @param num which led
+     * @param st  1: on 0: off
+     */
+    void setSingleLed(int num, int st);
+
+private:
+    /**
+     * Pin for clock
+     */
+    DigitalOut __pinClk;
+    
+    /**
+     * Pin for data
+     */
+    DigitalOut __pinDta;
+
+    /**
+     * LED State
+     */
+    unsigned int __led_state;
+
+    void send16bitData(unsigned int data);
+    void latchData(void);
+
+};
+
+#endif
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