Revision 0:fcd5b3044e79, committed 2011-04-10

Comitter:

ahmetunal

Date:

Sun Apr 10 08:38:02 2011 +0000

Child:

1:842f42dcf39a

Commit message:

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/1WireLcd/1WireLcd.cpp	Sun Apr 10 08:38:02 2011 +0000
@@ -0,0 +1,118 @@
+#include "1WireLcd.h"
+#include "mbed.h"
+
+DigitalOut wire(p21);
+
+
+
+
+void lcd_putc(unsigned char c)
+{
+   unsigned char data;
+    data = 0x00;
+    data |=0x50;
+    one_wire(data);
+    data |= ((c & 0xF0)>>4);
+    one_wire(data);
+    data &= 0x1F;
+    one_wire(data);
+    wait_us(100);
+    
+    data = 0x00;
+    data |= 0x50;
+    one_wire(data);
+    data |= (((c & 0x0F) << 4) >> 4);
+    one_wire(data);
+    data &= 0x1F;
+    one_wire(data);
+    wait_us(100);
+
+}
+
+void lcd_command(unsigned char c)
+{
+   unsigned char data;
+    data = 0x00;
+    data |=0x40;
+    one_wire(data);
+    data |= ((c & 0xF0)>>4);
+    one_wire(data);
+    data &= 0x0F;
+    one_wire(data);
+    wait_us(100);
+    
+    data = 0x00;
+    data |= 0x40;
+    one_wire(data);
+    data |= (((c & 0x0F) << 4) >> 4);
+    one_wire(data);
+    data &= 0x0F;
+    one_wire(data);
+    wait_us(100);
+
+}
+
+
+void lcd_init()
+{
+    one_wire(0);
+    wait_ms(15);
+    lcd_command(GoToFirst);
+    wait_ms(2);
+    lcd_command(TwoLine4Bit);    
+    lcd_command(WriteRight);    
+    lcd_command(HidePointer);    
+    lcd_clear();
+
+
+    lcd_command(FirstLine); 
+}
+
+
+void lcd_clear(void)
+{
+    lcd_command(0x1);
+    wait_ms(2);
+}
+
+void lcd_position(unsigned char x,unsigned char y)
+{
+    if(x==1)
+        lcd_command(0x80+((y-1)%20));
+    else
+        lcd_command(0xC0+((y-1)%20));
+}
+
+void lcd_printf(const char * a)
+{
+    wait_us(100);
+    while(*a)
+        lcd_putc(*a++);
+}
+
+void one_wire(unsigned char data)
+{
+    char i;
+    wire=1;
+    for(i=0;i < 8;i++)
+    {
+        if((data<<(i))&0x80)
+        {
+            wire=0;
+            wait_us(1);
+            wire=1;
+        }
+        else
+        {
+            wire=0;
+            wait_us(15);
+            wire=1;
+            wait_us(30);
+        }
+    }
+    wire=0;
+    wait_us(210);
+    wire=1;
+    wait_us(300);
+}
+

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/1WireLcd/1WireLcd.h	Sun Apr 10 08:38:02 2011 +0000
@@ -0,0 +1,34 @@
+#ifndef MBED_1WireLcd_H
+#define MBED_1WireLcd_H
+
+#include "mbed.h"
+#include "LPC1768/LPC17xx.h"
+
+#define Clear 1
+#define GoToFirst 2
+#define WriteLeft 4
+#define WriteRight 6
+#define CloseLcd 8
+#define HidePointer 12
+#define PointerBottom 14
+#define FlashPointer 15
+#define PointerBack 16
+#define ShiftRight 24
+#define ShiftLeft 28 
+#define FirstLine 128
+#define SecondLine 192 
+
+#define TwoLine8Bit 56 
+#define OneLine8Bit 48
+#define TwoLine4Bit 40
+#define OneLine4Bit 32
+
+void one_wire(unsigned char data);
+void lcd_putc(unsigned char);
+void lcd_clear(void);
+void lcd_printf(const char * a);
+void lcd_position(unsigned char x, unsigned char y);
+void lcd_command(unsigned char a);
+void lcd_init(void);
+
+#endif
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sun Apr 10 08:38:02 2011 +0000
@@ -0,0 +1,12 @@
+#include "mbed.h"
+#include "1WireLcd.h"
+
+
+DigitalOut myled(LED1);
+
+int main() {
+    
+    lcd_init();
+    
+    lcd_printf("Ahmet UNAL");
+}

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sun Apr 10 08:38:02 2011 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912