Diff: main.cpp

Revision:

0:9e70ed92f917

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Mon Nov 09 08:36:53 2020 +0000
@@ -0,0 +1,94 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2019 ARM Limited
+ * SPDX-License-Identifier: Apache-2.0
+ */
+
+#include "mbed.h"
+#include "platform/mbed_thread.h"
+
+
+// Blinking rate in milliseconds
+#define BLINKING_RATE_MS                                                    1
+
+#define Set_data_command 0b00100010
+#define Display_ON 0b11110001
+#define read_buttons 0b01000010
+
+#define Dig0 0b00000011
+
+int seg7[10]={0b11111100,0b01100000,0b11011010,
+0b11110010,0b01100110,0b10110110,
+0b10111110,0b11100000,0b11111110,
+0b11110110};
+int Dig[8]={ 0b00000011, 0b01000011, 0b00100011, 0b01100011, 0b00010011, 0b01010011, 0b00110011, 0b01110011};
+int LED[8]={ 0b10000011, 0b11000011, 0b10100011, 0b11100011, 0b10010011, 0b11010011, 0b10110011, 0b11110011};
+
+
+DigitalOut STB(PB_12);
+PortOut tastenanzeige(PortC,0xFF);
+
+SPI anzeige(PB_15,PB_14,PB_13);
+
+
+void anzeigen(int Nr, int Ziffer)
+{
+            STB=0;
+            anzeige.write(Set_data_command);
+            STB=1;  
+            
+            STB=0;
+            anzeige.write(Dig[Nr]);
+            anzeige.write(seg7[Ziffer]);
+            STB=1;  
+}
+
+void ledschalten(int Nr, bool ein)
+{
+            STB=0;
+            anzeige.write(Set_data_command);
+            STB=1;  
+            STB=0;
+            anzeige.write(LED[Nr]);
+            if (ein==true) anzeige.write(0x80);
+            else anzeige.write(0);
+            STB=1;   
+}
+
+int main()
+{
+    int b0, b1, b2, b3;
+    DigitalInOut MOSI(PB_15);
+    MOSI.mode(OpenDrain);
+    STB=1;
+    DigitalOut led(LED1);
+    anzeige.format(8,3);
+    anzeige.frequency(100000);
+    
+    STB=0;
+    anzeige.write(Display_ON);
+    STB=1;
+    
+    while (true) {
+        led = !led;
+        //thread_sleep_for(BLINKING_RATE_MS);
+        for (int i=0;i<8;i++)
+        {
+            anzeigen(i,i);             
+            ledschalten(i,(i%2==0));
+             
+        }       
+        
+        STB=0;
+        anzeige.write(read_buttons);
+        thread_sleep_for(BLINKING_RATE_MS);
+        b0=anzeige.write(0xFF);
+        b1=anzeige.write(0xFF);
+        b2=anzeige.write(0xFF);
+        b3=anzeige.write(0xFF);
+        tastenanzeige=b0+(b1>>1)+(b2>>2)+(b3>>3);
+        //tastenanzeige=anzeige.write(0xFF)+(anzeige.write(0xFF)>>1)+(anzeige.write(0xFF)>>2)+(anzeige.write(0xFF)>>3);
+        STB=1;  
+
+
+    }
+}