Paul Evans
Newhaven 320x240 LCD
Revision 0:c8893901ef8a, committed 2011-02-27
- Comitter:
- pbevans89
- Date:
- Sun Feb 27 21:01:16 2011 +0000
- Child:
- 1:fa44aeffcfd6
- Commit message:
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sun Feb 27 21:01:16 2011 +0000
@@ -0,0 +1,23 @@
+#include "mbed.h"
+#include "newhaven.h"
+
+BusInOut MyBus(p8,p9,p10,p11,p12,p13,p14,p15);
+NHLCD MyLCD(p5,p6,p7,p16,p17,&MyBus);
+
+int main() {
+ int i;
+ MyLCD.Init();
+ MyLCD.clearScreen();
+ wait(.5);
+ while(1)
+ {
+ MyLCD.text("Hello World!", 10, 1);
+ wait(1);
+ for(i = 0; i < 20; i++){
+ MyLCD.setPixel(i,i);
+ }
+ wait(1);
+ MyLCD.clearScreen();
+ wait(1);
+ }
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sun Feb 27 21:01:16 2011 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/63bcd7ba4912
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/newhaven.cpp Sun Feb 27 21:01:16 2011 +0000
@@ -0,0 +1,145 @@
+#include "mbed.h"
+#include "newhaven.h"
+
+NHLCD::NHLCD(PinName PIN_E,PinName PIN_RW,PinName PIN_A0,PinName PIN_CS,PinName PIN_RST, BusInOut *BUSLCD)
+ : E(PIN_E),RW(PIN_RW),A0(PIN_A0),CS(PIN_CS),RST(PIN_RST){
+ LCD_PORT = BUSLCD;
+}
+
+void delay(unsigned int n)
+{
+ unsigned int i,j;
+ for (i=0;i<n;i++)
+ for (j=0;j<350;j++)
+ {;}
+}
+void delay1(unsigned int i)
+{
+ while(i--);
+}
+
+
+void NHLCD::comm_out(unsigned char j){
+ LCD_PORT->output();
+ A0 = 1;
+ LCD_PORT->write(j);
+ CS = 0;
+ RW = 0;
+ E = 1;
+ delay(1);
+ E = 0;
+ RW = 1;
+ CS = 1;
+}
+
+void NHLCD::data_out(unsigned char j){
+ LCD_PORT->output();
+ A0 = 0;
+ LCD_PORT->write(j);
+ CS = 0;
+ RW = 0;
+ E = 1;
+ delay(1);
+ E = 0;
+ RW = 1;
+ CS = 1;
+}
+
+void NHLCD::clearScreen(){
+ int n;
+ comm_out(0x46);
+ data_out(0x00);
+ data_out(0x00);
+ comm_out(0x42);
+ for(n=0;n<1200;n++){
+ data_out(0x20);
+ }
+ comm_out(0x46);
+ data_out(0xB0);
+ data_out(0x04);
+ comm_out(0x42);
+ for(n=0;n<9600;n++){
+ data_out(0x00);
+ }
+}
+
+void NHLCD::text(char *text, char row, char col){
+ int c = row*40+col;
+ comm_out(0x46);
+ data_out((unsigned char)(c&0xFF));
+ data_out((unsigned char)((c&0xFF00)>>8));
+ comm_out(0x42);
+ while(*text != 0) {
+ data_out(*text);
+ text++;
+ }
+}
+
+
+void NHLCD::Init(void){
+ RST = 0;
+ delay(5);
+ RST = 1;
+ delay(10);
+
+ comm_out(0x40);
+ delay(5);
+ data_out(0x30); //parameters
+ data_out(0x87); //horizontal character size (0x80 = 1) MUST BE MULTIPLE OF 320
+ data_out(0x07); //vertical character size (0x00 = 1) MUST BE MULTIPLE OF 240
+ data_out(40); //addresses per line
+ data_out(80);
+ data_out(0xEF);
+ data_out(0x28);
+ data_out(0x00);
+
+ comm_out(0x44);
+ data_out(0x00);
+ data_out(0x00);
+ data_out(0xEF);
+ data_out(0xB0);
+ data_out(0x04);
+ data_out(0xEF);
+ data_out(0x00);
+ data_out(0x00);
+ data_out(0x00);
+ data_out(0x00);
+
+ comm_out(0x5A);
+ data_out(0x00);
+
+ comm_out(0x5B);
+ data_out(0x00);
+
+ comm_out(0x58);
+ data_out(0x56);
+
+ comm_out(0x5D);
+ data_out(0x04);
+ data_out(0x86);
+
+ comm_out(0x4C);
+
+ comm_out(0x59);
+ data_out(0x16);
+ wait_ms(5);
+}
+
+void NHLCD::setPixel(int row, int col){
+ int loc = (0x04<<8)|(0xB0);
+ int c = loc+row*40+(col/8);
+ comm_out(0x46);
+ data_out((unsigned char)(c&0xFF));
+ data_out((unsigned char)((c&0xFF00)>>8));
+ comm_out(0x43);
+ LCD_PORT->input();
+ unsigned char buffer = LCD_PORT->read();
+ buffer = buffer|(1<<(7-((row*320+col)%8)));
+ LCD_PORT->output();
+
+ comm_out(0x46);
+ data_out((unsigned char)(c&0xFF));
+ data_out((unsigned char)((c&0xFF00)>>8));
+ comm_out(0x42);
+ data_out(buffer);
+}
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/newhaven.h Sun Feb 27 21:01:16 2011 +0000
@@ -0,0 +1,20 @@
+#include "mbed.h"
+
+class NHLCD {
+ public:
+ NHLCD(PinName PIN_E,PinName PIN_RW,PinName PIN_A0,PinName PIN_CS,PinName PIN_RST, BusInOut *BUSLCD);
+ void Init();
+ void comm_out(unsigned char j);
+ void data_out(unsigned char j);
+ void clearScreen();
+ void text(char* text, char row, char col);
+ void setPixel(int row, int col);
+
+ private:
+ DigitalOut E,RW,A0,CS,RST;
+ BusInOut *LCD_PORT;
+
+};
+
+void delay(unsigned int n);
+void delay1(unsigned int n);