Diff: main.cpp

Revision:

0:a0463263ea2b

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Nov 20 00:29:16 2011 +0000
@@ -0,0 +1,85 @@
+/*********************************
+* sevenSegmentLed Library Example
+*
+* This program by one every second counts, do a 4-digit seven-segment LED display.
+*
+* seven segment numeric LED Display : LTC4627P
+*       http://www.excesssolutions.com/mas_assets/acrobat/ES5721.pdf
+*
+*  LTC4627T                              Resister        mbed
+*  Pin No     Function                   [ohm]           Function
+*  ---------------------------------------------------------------------------
+*   1         Common Anode Digit 1        -              P29 
+*   2         Common Anode Digit 2        -              P13
+*   3         Cathode D                   200            P22
+*   4         Common Anode L1,L2,L3       -              -
+*   5         Cathode E                   200            P24
+*   6         Common Anode Digit 3        -              P25  
+*   7         Cathode D.p.                200            P30
+*   8         Common Anode Digit 4        -              P27 
+*   9         No Connection               -              -
+*  10         No Pin                      -              -
+*  11         Cathode F                   200            P16 
+*  12         No Pin                      -              -
+*  13         Cathode C,L3                200            P17 
+*  14         Cathode A,L1                200            P14
+*  15         Cathode G                   200            P19
+*  16         Cathode B,L2                200            P20
+
+
+
+**********************************/
+#include "mbed.h"
+
+#include "SevenSegLed.h"
+
+//                     common type (0:anode common 1:cathode common)
+//                     |
+//                     |  display mode (0:smooth 1:hard)
+//                     |  |
+//                     |  |    segA segB segC segD segE segF segG segP com1 com2 com3 com4                           
+//                     |  |    |    |    |    |    |    |    |    |    |    |    |    | 
+SevenSegLed segmentled(0, 0, p14, p20, p17, p22, p24, p16, p19, p30, p29, p13, p25, p27);
+
+
+//                   1  2  3  4digit 
+//                   |  |  |  |
+uint8_t D_7seg[4] = {0, 0, 0, 0}; // seven segment digit number    (0x00:"0", 0x01:"1", ... , 0x09:"9", 0x0A:"A", ... , 0x0F:"F", other:" ")
+uint8_t D_dot[4]  = {0, 0, 0, 0}; // seven segment digit dotpoint. (0:off 1:on)
+
+
+Timer timer;    // 1second timer
+    
+int main() {
+    uint16_t counter = 0;
+    
+    timer.start();
+
+    while(1) {
+        // After one second to start the process
+        if(timer.read_ms() >= 1000){
+            timer.reset();
+            counter++;
+
+            // Display digit data updates
+            D_7seg[0] = (uint8_t)((counter & 0xF000) >> 12);
+            D_7seg[1] = (uint8_t)((counter & 0x0F00) >> 8);
+            D_7seg[2] = (uint8_t)((counter & 0x00F0) >> 4);
+            D_7seg[3] = (uint8_t)(counter & 0x000F);
+            
+            // Display dot point data updates
+            D_dot[0] = 0;
+            D_dot[1] = 0;
+            D_dot[2] = 0;
+            D_dot[3] = 0;            
+            
+            // dot point data set
+            D_dot[counter & 0x0003] = 1;
+        }
+
+        // seven segment display to output data
+        // This function, please repeat the process in less than 1ms.
+        segmentled.SevenSegLed_main(D_7seg, D_dot);      
+ 
+    }
+}