Yuji Notsu / Mbed 2 deprecated SG12864A_test

This program is for SG12864A(128 x 64 mono-LCD display) with Starboard Orange. Many of source code is referred from below website(in Japanese). (http://www.picfun.com/PIC24H/app24H01.html) Connection between SG12864A and mbed: (these connection are defined in SG12864A.h) pin1(VSS) pin2(VDD) : 5V pin3(V0) : pin4(DI) : p23 pin5(RW): p22 pin6(E): p21 pin7(DB0):p20 pin8(DB1):p19 pin9(DB2):p14 pin10(DB3):p13 pin11(DB4):p12 pin12(DB5):p11 pin13(DB6):p10 pin14(DB7):p9 pin15(CS1):p17 pin16(CS2):p16 pin17(RST):p15 pin18:VOUT pin19:LED Anode pin20:LED Cathode Note: lcd_Line function is not correct(maybe)... Other function is correctly working.

Dependencies:   mbed

Diff: SG12864A.cpp

Revision:
0:d0cd5139479f
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/SG12864A.cpp	Sun Jan 09 11:44:15 2011 +0000
@@ -0,0 +1,276 @@
+//
+//
+//
+
+#include "SG12864A.h"
+#include "font.h"
+
+
+ SG12864A::SG12864A() : DI_OUT(DI), RW_OUT(RW), E_OUT(E), DB_OUT(DB0,DB1,DB2,DB3,DB4,DB5,DB6,DB7),
+                      CS1_OUT(CS1),CS2_OUT(CS2),RST_OUT(RST)
+                      { DI_OUT = 0x01;RW_OUT = 0x01; E_OUT = 0x00;
+                        DB_OUT = 0x00; 
+                        DB_OUT.output();
+                        CS1_OUT= 0x01; CS2_OUT=0x01; RST_OUT=0x01; 
+                      //t.attach( this, &SG12864A::display, ReflashRate );
+                      }
+//Data output function
+void SG12864A::lcd_Write(char cs, char code, char DIflag){
+    int data;
+    DB_OUT.output();
+    RW_OUT = 0;
+    if(cs==1)
+        CS1_OUT=0;
+    else
+        CS2_OUT=0;
+    data = (int)code;
+    //DB_OUT = (DB_OUT & 0x00FF) | ((data<<8) & 0xFF00);
+    DB_OUT = data & 0x00FF;
+    if(DIflag == 0)
+        DI_OUT = 1;
+    else
+        DI_OUT = 0;
+    wait_us(1);
+    E_OUT = 1;
+    wait_us(1);
+    E_OUT = 0;
+    CS1_OUT = 1;
+    CS2_OUT = 1;
+    RW_OUT = 1;
+    wait_us(5);
+ }
+ 
+ // Data Read Function
+  char SG12864A::lcd_Read(char cs){
+    int data;
+    DB_OUT.input();
+    RW_OUT = 1;
+    if(cs==1)
+        CS1_OUT = 0;
+    else
+        CS2_OUT = 0;
+    DI_OUT = 1;
+    wait_us(1);
+    E_OUT = 1;
+    wait_us(1);
+    E_OUT = 0;
+    wait_us(3);
+    //data = (DB_OUT >>8 ) & 0x00FF;
+    data = DB_OUT & 0x00FF;
+    wait_us(1);
+    CS1_OUT = 1;
+    CS2_OUT = 1;
+    DB_OUT.output();
+    return((char)data);
+ }
+ 
+  // Data Read Function
+  char SG12864A::lcd_StatusRead(char cs){
+    int data;
+    DB_OUT.input();
+    RW_OUT = 1;
+    if(cs==1)
+        CS1_OUT = 0;
+    else
+        CS2_OUT = 0;
+    DI_OUT = 0;
+    wait_us(1);
+    E_OUT = 1;
+    wait_us(1);
+    E_OUT = 0;
+    wait_us(3);
+    data = DB_OUT   & 0x00FF;
+    wait_us(1);
+    CS1_OUT = 1;
+    CS2_OUT = 1;
+    DB_OUT.output();
+    return((char)data);
+ }
+
+ // Screen Clear Function
+void SG12864A::lcd_Clear(char data){
+    char page, colum;
+    
+    for(page=0; page<8;page++){         //repeat 8 page
+        lcd_Write(1,0xB8+page,1);       //page set
+        lcd_Write(1,0x40,1);            //column reset
+        lcd_Write(2,0xB8+page,1);       //page set
+        lcd_Write(2,0x40,1);            //column reset
+        for(colum=0;colum<64;colum++){ //repeat 64column
+            lcd_Write(1,data,0);        //fill data
+            lcd_Write(2,data,0);        //fill data
+        }
+    }
+    
+    lcd_Write(1,0xC0,1);  //reset start line
+    lcd_Write(2,0xC0,1);
+}
+
+// Initialize Function
+void SG12864A::lcd_Init(void){
+    RST_OUT = 0;
+    wait_ms(1000);
+    RST_OUT = 1;
+    wait_ms(10);
+    lcd_Write(1, 0x3F, 1);  // Display On
+    lcd_Write(2, 0x3F, 1);  // Display On
+    lcd_Clear(0);
+}
+
+// Draw Pixel Function
+ void SG12864A::lcd_Pixel(int Xpos, int Ypos, char On){
+    char cs, data, page, pos, count, i;
+
+	/* if colum >127 then do nothing  */
+	if(Xpos<128){
+		if(Xpos>63){						// 64=<colum<=127?
+			Xpos = Xpos-64;					// shift 64 dot
+			cs = 1;
+		}
+		else
+			cs = 2;
+		page = (char)(7-Ypos/8);			// set page
+		lcd_Write(cs, 0xB8+page, 1);			
+		lcd_Write(cs, 0x40+Xpos, 1);		// set colum 
+		data = lcd_Read(cs);				// get current data
+		lcd_Write(cs, 0x40+Xpos, 1);		// set colum ???? 
+		data = lcd_Read(cs);				// get current data	????	
+		pos =1;								// set bit position
+		count = (char)(7-Ypos%8);			// set bit
+		for(i=0; i<count; i++)				// caluculate 2^n
+			pos *= 2;
+		lcd_Write(cs, 0x40+Xpos, 1);		// back address
+		if(On==1)							// set or reset bit
+			lcd_Write(cs, data | pos, 0);	// set 1
+		else
+			lcd_Write(cs, data & ~pos, 0);	// set 0
+	}
+}
+
+//Draw Straight line Function      
+#define	abs(a)	(((a)>0) ? (a) : -(a))
+void SG12864A::lcd_Line(int x0, int y0, int x1, int y1)
+{
+
+	int steep, t;
+	int	deltax, deltay, error;
+	int x, y;
+	int ystep;
+	
+	/// ·•ª‚Ì‘å‚«‚¢‚Ù‚¤‚ð‹‚ß‚é
+	steep = (abs(y1 - y0) > abs(x1 - x0));
+	/// ‚˜A‚™‚Ì“ü‚ê‘Ö‚¦
+	if(steep){
+		t = x0; x0 = y0; y0 = t;
+		t = x1; x1 = y1; y1 = t;
+	}
+	if(x0 > x1) {
+		t = x0; x0 = x1; x1 = t;
+		t = y0; y0 = y1; y1 = t;
+	}
+	deltax = x1 - x0;						// ŒX‚«ŒvŽZ	
+	deltay = abs(y1 - y0);
+	error = 0;
+	y = y0;
+	/// ŒX‚«‚ŃXƒeƒbƒv‚̐³•‰‚ðØ‚è‘Ö‚¦
+	if(y0 < y1) ystep = 1; else ystep = -1;
+	/// ’¼ü‚ð“_‚Å•`‰æ
+	for(x=x0; x<x1; x++) {
+		if(steep) lcd_Pixel(y,x,1); else lcd_Pixel(x,y,1);
+		error += deltay;
+		if((error << 1) >= deltax) {
+			y += ystep;
+			error -= deltax;
+		}
+	}
+}
+
+
+//Display Character Function
+void SG12864A::lcd_Char(char line, char colum, int letter){
+    char cs, i;
+    int pos;
+    
+    if(colum < 16){
+        if(colum >7){
+            pos = (colum-8)*8;
+            cs = 1;
+        }
+        else{
+            pos = colum*8;
+            cs = 2;
+        }
+        lcd_Write(cs, 0xB8+line,1);
+        lcd_Write(cs, 0x40+pos,1);
+        for(i=0; i<5; i++)
+            lcd_Write(cs,Font[letter-0x20][i],0);
+        lcd_Write(cs,0,0);
+        lcd_Write(cs,0,0);
+        lcd_Write(cs,0,0);
+     }
+}
+
+// Display Character Function2
+void SG12864A::lcd_Char1(char line, char colum, int letter){
+    char cs, i;
+    int pos;
+    
+    if(colum < 18){
+        if(colum > 8){
+            pos = (colum- 9) * 7;
+              cs = 1;
+        }
+        else{
+              pos = colum * 7;
+              cs = 2;
+        }
+        lcd_Write(cs, 0xB8+line, 1);        // set page
+        lcd_Write(cs, 0x40+pos, 1);            // set colum
+        for(i=0; i<5; i++)
+            lcd_Write(cs, Font[letter-0x20][i], 0);
+        lcd_Write(cs, 0, 0);
+        lcd_Write(cs, 0, 0);
+    }
+}
+
+// Display Char Srings Function
+void SG12864A::lcd_Str(char line, char colum, char *s)
+{
+    while(*s)
+        SG12864A::lcd_Char1(line, colum++, *s++);
+}
+
+// Display Image Function
+void SG12864A::lcd_Image(char *ptr)
+{
+    char cs, Xpos;
+    int page, colum;
+
+    for(page=0; page<8; page++){
+        for(colum=0; colum<128; colum++){
+            if(colum > 63){
+                Xpos=colum-64;
+                cs = 1;
+            }
+            else{
+                Xpos = colum;
+                cs = 2;
+            }
+            lcd_Write(cs, 0xB8+page, 1);
+            lcd_Write(cs, 0x40+Xpos, 1);
+            lcd_Write(cs, *ptr++, 0);
+        }
+    }
+}
+
+//Scroll Function
+void SG12864A::lcd_Scroll(int delay){
+    int i;
+    
+    for(i=0; i<64; i++){
+        lcd_Write(1, 0xC0+i,1);
+        lcd_Write(2, 0xC0+i,1);
+        wait_ms(delay);
+    }
+}  
+ 
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