Diff: main.cpp

Revision:

0:87888ca85258

Child:

1:23bf1845cc2f

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Wed Dec 27 15:10:44 2017 +0000
@@ -0,0 +1,79 @@
+#include "mbed.h"
+
+DigitalOut myled(LED1);
+
+DigitalOut RS(D9);
+DigitalOut RW(D4);
+DigitalOut E(D8);
+BusInOut DB(A0, A1, A2, A3, D7, D6, D3, D1);        //LSB First
+
+void clock_in();
+void first_init_command();
+void Function_Set();
+void Display_Off();
+void Display_Clear();
+void Entry_Mode_Set();
+void Display_On();
+void DDRAM_Address(int Address);
+void Write_Data(int Letter);
+
+int main() {
+    
+    DB.output();
+    first_init_command();
+    wait(0.005);
+    first_init_command();
+    wait(0.005);
+    first_init_command();
+    wait(0.020);
+    Function_Set();
+    wait(0.020);
+    Display_Off();
+    wait(0.020);
+    Display_Clear();
+    wait(0.020);
+    Entry_Mode_Set();
+    wait(0.020);
+    Display_On();
+    wait(0.020);
+    DDRAM_Address(0);
+    wait(0.020);
+    Write_Data(0x41);
+    
+}
+
+void clock_in(){
+    E = 1; wait(0.01); E = 0; wait(0.01); E = 1;
+}
+    
+void first_init_command(){
+    RS = 0; RW = 0; DB = 0x30; clock_in();
+}
+
+void Function_Set(){
+    RS = 0; RW = 0; DB = 0x3C; clock_in();   
+}
+
+void Display_Off(){
+    RS = 0; RW = 0; DB = 0x08; clock_in();    
+}
+
+void Display_Clear(){
+    RS = 0; RW = 0; DB = 0x01; clock_in();   
+}
+
+void Entry_Mode_Set(){
+    RS = 0; RW = 0; DB = 0x06; clock_in();   
+}
+
+void Display_On(){
+    RS = 0; RW = 0; DB = 0x0E; clock_in();   
+}
+
+void DDRAM_Address(int Address){
+    RS = 0; RW = 0; DB = 0x80 + Address; clock_in();    
+}
+
+void Write_Data(int Letter){
+    RS = 1; RW = 0; DB = Letter; clock_in();   
+}