Surendrakumar Paulraj
ITEAD 2.4E LCD Interface 8 Bit Parallel Mode
Revision 0:217105958c2d, committed 2013-02-20
- Comitter:
- techneo
- Date:
- Wed Feb 20 15:13:20 2013 +0000
- Commit message:
- working module
Changed in this revision
diff -r 000000000000 -r 217105958c2d lcd_driver.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/lcd_driver.cpp Wed Feb 20 15:13:20 2013 +0000
@@ -0,0 +1,164 @@
+#include "lcd_driver.h"
+
+
+#define LCD_DRIVER_C
+
+#include "mbed.h"
+
+//lsb .. msb
+BusOut LCD_DataBus(p13,p14,p15,p16,p17,p18,p19,p20);
+
+
+DigitalOut RS(p21);
+DigitalOut WR(p22);
+DigitalOut RD(p23);
+DigitalOut CS(p24);
+DigitalOut RST(p25);
+
+
+void Write_Command(unsigned int c)
+{
+ RS = 0;
+ Write(c);
+}
+
+void Write_Data(unsigned int c)
+{
+ RS = 1;
+ Write(c);
+}
+
+void Write(unsigned int c)
+{
+ LCD_DataBus = c >> 8;
+ WR = 0;
+ WR = 1;
+
+ LCD_DataBus = c;
+ WR = 0;
+ WR = 1;
+
+}
+
+void Write_Command_Data(unsigned int cmd,unsigned int dat)
+{
+ Write_Command(cmd);
+ Write_Data(dat);
+}
+
+
+void Lcd_Init()
+{
+
+ digitalWrite(RD,HIGH);
+ digitalWrite(CS,HIGH);
+ digitalWrite(WR,HIGH);
+
+ digitalWrite(RST,HIGH);
+ delay(1);
+ digitalWrite(RST,LOW);
+ delay(10);
+ delay(1);
+ digitalWrite(RST,HIGH);
+
+ CS = 0;
+
+ Write_Command_Data(0x0011,0x2004);
+ Write_Command_Data(0x0013,0xCC00);
+ Write_Command_Data(0x0015,0x2600);
+ Write_Command_Data(0x0014,0x252A);
+// Write_Command_Data(0x14,0x002A);
+ Write_Command_Data(0x0012,0x0033);
+ Write_Command_Data(0x0013,0xCC04);
+ //delayms(1);
+ Write_Command_Data(0x0013,0xCC06);
+ //delayms(1);
+ Write_Command_Data(0x0013,0xCC4F);
+ //delayms(1);
+ Write_Command_Data(0x0013,0x674F);
+ Write_Command_Data(0x0011,0x2003);
+ //delayms(1);
+ Write_Command_Data(0x0030,0x2609);
+ Write_Command_Data(0x0031,0x242C);
+ Write_Command_Data(0x0032,0x1F23);
+ Write_Command_Data(0x0033,0x2425);
+ Write_Command_Data(0x0034,0x2226);
+ Write_Command_Data(0x0035,0x2523);
+ Write_Command_Data(0x0036,0x1C1A);
+ Write_Command_Data(0x0037,0x131D);
+ Write_Command_Data(0x0038,0x0B11);
+ Write_Command_Data(0x0039,0x1210);
+ Write_Command_Data(0x003A,0x1315);
+ Write_Command_Data(0x003B,0x3619);
+ Write_Command_Data(0x003C,0x0D00);
+ Write_Command_Data(0x003D,0x000D);
+ Write_Command_Data(0x0016,0x0007);
+ Write_Command_Data(0x0002,0x0013);
+ Write_Command_Data(0x0003,0x0003);
+ Write_Command_Data(0x0001,0x0127);
+ //delayms(1);
+ Write_Command_Data(0x0008,0x0303);
+ Write_Command_Data(0x000A,0x000B);
+ Write_Command_Data(0x000B,0x0003);
+ Write_Command_Data(0x000C,0x0000);
+ Write_Command_Data(0x0041,0x0000);
+ Write_Command_Data(0x0050,0x0000);
+ Write_Command_Data(0x0060,0x0005);
+ Write_Command_Data(0x0070,0x000B);
+ Write_Command_Data(0x0071,0x0000);
+ Write_Command_Data(0x0078,0x0000);
+ Write_Command_Data(0x007A,0x0000);
+ Write_Command_Data(0x0079,0x0007);
+ Write_Command_Data(0x0007,0x0051);
+ //delayms(1);
+ Write_Command_Data(0x0007,0x0053);
+ Write_Command_Data(0x0079,0x0000);
+
+ Write_Command(0x0022);
+
+
+}
+
+void SetXY(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1)
+{
+ Write_Command_Data(0x0046,(x1 << 8)| x0);
+ //Write_Command_Data(0x0047,x1);
+ Write_Command_Data(0x0047,y1);
+ Write_Command_Data(0x0048,y0);
+ Write_Command_Data(0x0020,x0);
+ Write_Command_Data(0x0021,y0);
+ Write_Command (0x0022);//LCD_WriteCMD(GRAMWR);
+}
+void Pant(unsigned int color)
+{
+ int i,j;
+ int color_test;
+ color_test = 0;
+ SetXY(0,239,0,319);
+ //SetXY(0,120,0,120);
+
+ for(i=0;i<320;i++)
+ {
+ for (j=0;j<240;j++)
+ {
+ Write_Data(color_test);
+ color_test+=10;
+ }
+
+ }
+}
+void LCD_clear()
+{
+ unsigned int i,j;
+ SetXY(0,239,0,319);
+ for(i=0;i<X_CONST;i++)
+ {
+ for(j=0;j<Y_CONST;j++)
+ {
+ Write_Data(0x0000);
+ }
+ }
+}
+
+
+#undef LCD_DRIVER_C
diff -r 000000000000 -r 217105958c2d lcd_driver.h --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lcd_driver.h Wed Feb 20 15:13:20 2013 +0000 @@ -0,0 +1,41 @@ +#ifndef LCD_DRIVER_H +#define LCD_DRIVER_H + +//#include "mbed.h" + + +#ifdef LCD_DRIVER_C + #define EXTERN_PFX +#else + #define EXTERN_PFX extern +#endif + +#define HIGH 1 +#define LOW 0 + +#define digitalWrite(x,y) x=y + +#define delay(x) wait_ms(x) + +#define X_CONST 240 +#define Y_CONST 320 + + + + +EXTERN_PFX void Write(unsigned int c); +EXTERN_PFX void Write_Command(unsigned int c); +EXTERN_PFX void Write_Data(unsigned int c); +EXTERN_PFX void Write_Command_Data(unsigned int cmd,unsigned int dat); + + +EXTERN_PFX void Lcd_Init(); +EXTERN_PFX void LCD_clear(); +EXTERN_PFX void SetXY(unsigned int x0,unsigned int x1,unsigned int y0,unsigned int y1); +EXTERN_PFX void Pant(unsigned int color); + + + + + +#endif
diff -r 000000000000 -r 217105958c2d main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Wed Feb 20 15:13:20 2013 +0000
@@ -0,0 +1,37 @@
+#include "mbed.h"
+#include "lcd_driver.h"
+
+DigitalOut myled(LED1);
+
+
+int main() {
+
+ Serial pc(USBTX, USBRX); // tx, rx
+
+ Lcd_Init();
+ pc.printf("Hello mbed\n");
+ LCD_clear();
+ pc.printf("clear \n");
+ Pant(0xf800);
+ Pant(0x07e0);
+ Pant(0x001f);
+ Pant(0xffff);
+ Pant(0x0000);
+
+ while(1) {
+ Pant(0xf800);
+ Pant(0x07e0);
+ Pant(0x001f);
+ Pant(0xffff);
+ Pant(0x0000);
+#if 0
+ myled = 1;
+ wait(0.5);
+ myled = 0;
+ wait(0.5);
+#endif
+ }
+}
+
+
+
diff -r 000000000000 -r 217105958c2d mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Wed Feb 20 15:13:20 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/3d0ef94e36ec \ No newline at end of file