Diff: LED7segX4.h

Revision:

0:51d1da4a6b6a

Child:

1:e89aae394d29

diff -r 000000000000 -r 51d1da4a6b6a LED7segX4.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/LED7segX4.h	Wed Apr 11 09:18:20 2018 +0000
@@ -0,0 +1,168 @@
+/**
+ *  Dynamic Lighting Lib. of 7Seg-LED (add DP) x4.
+ *
+ *  Features:
+ *   - Unified Anode/Cathode common 7Segs, and NPN/PNP switchings.
+ *   - Using BusOut(s) of Digits(0-3) and Segments(A-G,DP).
+ *   - Sinmple Interface of Class.
+ *   - Non-use wait(); Useing Interrupt Timer: Ticker and Timeut.
+ *   - Modulates Brightness; You Can Control of Periodic-Time and Duty.
+ *   - Display Hex(0-9,A-F) of 4 Digit; Using char[4].
+ */
+
+/** @code
+#include "mbed.h"
+ 
+#include "LED7segX4.h"
+ 
+// port make.
+BusOut pDgit(p21, p22, p23, p24);   // D1, D2, D3, D4
+BusOut pSeg(p11, p12, p13, p14, p15, p16, p17, p18); // A, B, C, D, E, F, G, DP
+
+// Make instance of 7Seg-class.
+LED7segX4 led7seg(pDgit, pSeg);
+
+// for Operation check.
+DigitalOut myled(LED1);
+
+int main() {
+    
+    char val[4];
+    char dp;
+    int duty;
+    
+     // In this case: Anode Common, PNP swiching for Dig-common,
+    // and sink port(BusOut) for seg.
+    led7seg.init(true, true, 1000, 40);
+    
+    val[0]= 0;
+    val[1]= 0;
+    val[2]= 0;
+    val[3]= 0;
+    
+    led7seg.set7seg(val);
+    led7seg.setDP(0b0001);
+    
+    while(true) {
+        myled = !myled;
+        wait_ms(30);
+
+        if(++duty > 100)
+            duty= 30;
+            
+        val[3] += 1;
+        for(int i= 0; i < 3; i++){
+            if(val[3-i] > 15){
+                if(i < 3){
+                    val[3-i]= 0;
+                    val[2-i] += 1;
+                }
+                dp += 1;
+            }
+        }
+        if(val[0]==15 && val[1]==15 && val[2]==15 && val[3]==15){
+            // = FFFF
+            val[0]= 0;
+            val[1]= 0;
+            val[2]= 0;
+            val[3]= 0;
+        }
+        if(dp > 0b1111)
+            dp= 0;
+        
+        led7seg.set7seg(val);
+        led7seg.setDP(dp);
+        led7seg.setPWM(1000, duty);
+        
+    }
+    
+    return 0;
+}
+ * @endcode
+ */
+ 
+#pragma once
+
+#include "mbed.h"
+
+class LED7segX4{
+public:
+
+    /** Constructor
+     *  @param BusOut; _portDig: Bus4 of Digit(3~0)
+     *  @param BusOut; _portSeg: Bus8 of Segment(a~g+dp)
+     */
+    LED7segX4(BusOut &portDig, BusOut &portSeg);
+
+    ~LED7segX4();
+    
+    
+    /** Initialize
+     *  @param bool; dig: Reverce(H/L) Digit(3~0)
+     *  @param bool; seg: Reverce(H/L) Segment(a~g+dp)
+     *  @param int; timePeriod[us]: time of priend in PWM.
+     *  @param int; duty[%]: duty of PWM.
+     */
+    void init(bool revDig= false, bool revSeg= false, int timePeriod= 1000, int duty= 80);
+
+    
+    /** set seg TYPE;
+     *  @param bool; dig: Digit(3~0)
+     *  @param bool; seg: Segment(a~g+dp)
+    */
+    void setReverse(bool dig, bool seg);
+    
+    /** Set 7seg.
+     *  @param chr[4]; D3~D1, 0x00(0)~0x15(F) and 0x16(OFF/NULL).
+    */
+    void set7seg(char chr[]);
+    
+    /** Set DotPoint.
+     *  @param chr; 0b0000~0b1111, bit0~3; TRUE=1.
+    */
+    void setDP(char chr);
+    
+    /** Set PWM (Britness).
+     *  @param int; periodic time [us]. "for Each Digit."
+     *  @param int; duty ratio;1~100[%] in timePeriod.
+     *  ex) In case of 1,000us and 60%, 
+    */
+    void setPWM(int timePeriod, int duty);
+    
+    
+    
+private:
+
+    // ********************** Variable ******************************
+    
+    // pin/port set
+    BusOut &_portDig;
+    BusOut &_portSeg;
+    
+    // TimerIRQ 4 PWM
+    Ticker ticker;      // Duty : Bright
+    Timeout timeout;    // Duty : OFF
+    float _dutySec;     // Duty(Bright) Time-width [s], in 1 period.
+
+    // Define
+    char _def7seg[17];   // Define Segment; 0~f + 16:OFF(Null)
+
+
+    // Local Hold Val
+    char _seg7[5];      // 4+Null           ex) 2.3E5 -> 2, 3, 14, 5
+    char _dp;           // 0b0000~0b1111;   ex) 12.3E. -> 0b0101
+    bool _revDig;       // REVERSE H/L 4 Transistor swDigit
+    bool _revSeg;       //                      AND swSeg
+    int _currentDigit;  // current digit-Num (0~3). This shifts in timeperiod of PWM.
+    
+
+    // ********************** Internal Function *********************
+    void init_def7seg();    // Set/Define of seg pattern.
+    
+    // For DUTY of PWM. ON(Shift) and OFF.
+    void OnSet();
+    void OffSet();
+    
+};
+
+// EOF
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