Revision 0:f8d176816ac2, committed 2019-06-13

Comitter:

docent

Date:

Thu Jun 13 16:25:50 2019 +0000

Commit message:

For my students 13.06.2019

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/QuadDisplay2.cpp	Thu Jun 13 16:25:50 2019 +0000
@@ -0,0 +1,103 @@
+#include "QuadDisplay2.h"
+#include "mbed.h"
+
+QuadDisplayMy::QuadDisplayMy(SPI *spi, PinName cs_pin) : 
+        _dev_spi(spi), _cs_pin(cs_pin)
+{
+    assert (spi);
+   _cs_pin = 0;  
+}
+
+void QuadDisplayMy::displayDigits(uint8_t *text)
+{
+    int i;
+     _dev_spi->lock();
+     _cs_pin = 0;  
+     for (i=0;i<4;i++)
+        _dev_spi->write(conv(text[i])); 
+     _cs_pin = 1;
+     _dev_spi->unlock(); 
+}
+
+uint8_t QuadDisplayMy::conv(uint8_t c)
+{
+    uint8_t a;
+    switch (c){
+       case char(0):
+          a=QD_NONE;
+          break; 
+       case char(1):
+          a=QD_DOT;
+          break; 
+       case char(2):
+          a=QD_MINUS;
+          break;           
+       case char(3):
+          a=QD_UNDERSCORE;
+          break; 
+       case char(4):
+          a=QD_DEGREE;
+          break; 
+       case char(5):
+          a=QD_UNDER_DEGREE;
+          break;         
+       case char(6):
+          a=QD_UPPERSCORE;
+          break; 
+       case char(7):
+          a=QD_COMMAS;
+          break; 
+       case char(8):
+          a=QD_UNDERCOMMAS;
+          break;                            
+       
+       case '-':     
+          a=QD_MINUS;  
+          break;                                              
+       case '0':
+          a=QD_0;
+          break;
+       case '1':
+          a=QD_1; 
+          break;
+       case '2':
+          a=QD_2; 
+          break;          
+       case '3':
+          a=QD_3;
+          break;
+       case '4':
+          a=QD_4;
+          break; 
+       case '5':
+          a=QD_5;
+          break;
+       case '6':
+          a=QD_6;
+          break; 
+       case '7':
+          a=QD_7;
+          break; 
+       case '8':
+          a=QD_8;
+          break;
+       case '9':
+          a=QD_9;
+          break;  
+       case 'd':
+       case 'D':         
+          a=QD_d;
+          break;            
+       case 'P':
+       case 'p':         
+          a=QD_P;
+          break;    
+       case 'H':
+       case 'h':         
+          a=QD_H;
+          break;                                
+       default:
+          a=QD_NONE;                                         
+    }  
+    return a^0xff;     
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/QuadDisplay2.h	Thu Jun 13 16:25:50 2019 +0000
@@ -0,0 +1,95 @@
+#ifndef QUAD_DISPLAY
+#define QUAD_DISPLAY
+
+#include "mbed.h"
+#include <assert.h>
+/*
+original
+    ___7___
+   /       \
+  |         |
+ 2|         |6
+   \___1___/
+   /       \
+  |         |
+ 3|         |5
+   \___4___/
+               *0
+ ----my---------
+ 
+    ___1___
+   /       \
+  |         |
+ 6|         |2
+   \___7___/
+   /       \
+  |         |
+ 5|         |3
+   \___4___/
+               *0              
+               
+ */
+
+#define QD_NONE  0//my 0
+#define QD_DOT   1//my 1
+#define QD_MINUS 0b10000000//my 2
+
+#define QD_UNDERSCORE       0b00010000//my 3
+#define QD_DEGREE           0b11000110//my 4
+#define QD_UNDER_DEGREE     0b10111000//my 5
+#define QD_UPPERSCORE       0b00000010//my 6
+#define QD_COMMAS           0b00000100//my 7
+#define QD_UNDERCOMMAS      0b00001000//my 8
+             //76543210
+#define QD_0 0b01111110
+#define QD_1 0b00001100//my
+#define QD_2 0b10110110//my
+#define QD_3 0b10011110//my
+#define QD_4 0b11001100//my
+#define QD_5 0b11011010//my
+#define QD_6 0b11111010//my
+#define QD_7 0b00001110//my
+#define QD_8 0b11111110//my
+#define QD_9 0b11011110//my
+
+#define QD_A 0b00000000
+#define QD_a 0b00000000
+#define QD_b 0b00000000
+#define QD_C 0b01100000
+#define QD_c 0b00000000
+            //76543210
+#define QD_d 0b10111100//my
+#define QD_E 0b00000000
+#define QD_f 0b00000000
+#define QD_F QD_f
+#define QD_H 0b11101100 //my
+#define QD_h 0b00000000
+#define QD_I QD_1
+#define QD_J 0b00000000
+#define QD_K QD_H
+#define QD_L 0b00000000
+#define QD_n 0b00000000
+#define QD_o 0b00000000
+#define QD_O QD_0
+             //76543210
+#define QD_P 0b11100110//my
+#define QD_r 0b00000000
+#define QD_S 0b00000000
+#define QD_t 0b00000000
+#define QD_u 0b00000000
+#define QD_U 0b00000000
+#define QD_Y 0b00000000
+
+
+class QuadDisplayMy
+{
+private:
+    SPI    *_dev_spi; 
+    DigitalOut  _cs_pin; 
+     uint8_t conv(uint8_t c);   
+public:
+    QuadDisplayMy(SPI *spi, PinName cs_pin);
+    void displayDigits(uint8_t *text);
+};
+
+#endif