Jon Trinder / jtlcd

Convenience routines for an I"C connected LCD display. Handy things like taking cursor to home, positioning cursor, clearing display, writing strings etc

Dependents:   gu_squirt_tester

jtlcd.cpp

Committer:
jont
Date:
2012-11-07
Revision:
0:8f724a47a820
Child:
1:2ded47079af1

File content as of revision 0:8f724a47a820:

#include "mbed.h"
#include "jtlcd.h"

I2C i2c(p28, p27);        // sda, scl
void lcdinit()
{

        i2c.start();
        i2c.write(Slave);
        i2c.write(0x00);
        i2c.write(0x38);
        wait(0.01);  
        i2c.write(0x39); //i assume now we juyst need data?  
        wait(0.01);
        i2c.write(0x14);
        i2c.write(0x74);
        i2c.write(0x54);
        i2c.write(0x6f);
        i2c.write(0x0c); 
        i2c.write(0x01);     
        i2c.write(0x06);     
        wait(0.01);
        i2c.stop();
        

}

void lcdclear()
{
        i2c.start();
        i2c.write(Slave);
        i2c.write(0x00);
        i2c.write(0x01);
        i2c.stop();
         wait(0.2);
}

void test()
{

        i2c.start();
        i2c.write(Slave);
        i2c.stop();
        wait(0.2);
}


void Show(char *text) 
{ 
 int n,d; 
 d=0x00; 
 int length = strlen(text);
        i2c.start();
 i2c.write(Slave); //Slave=0x78 
 i2c.write(Datasend);//Datasend=0x40 
 for(n=0;n<length;n++){ 
  i2c.write(*text); 
  ++text; 
  } 
 i2c.stop(); 
}