File content as of revision 0:3745349c0c83:

/*
 *  Copyright (c) 2012 Neal Horman - http://www.wanlink.com
 *  
 *  License: MIT open source (http://opensource.org/licenses/MIT)
 *      Summary;
 *      Use / modify / distribute / publish it how you want and 
 *      if you use it, or don't, you can't hold me liable for how
 *      it does or doesn't work.
 *      If it doesn't work how you want, don't use it, or change
 *      it so that it does work.
 */
 
#include "mbed.h"
#include "Adafruit_SSD1306.h"
#include "Adafruit_GFX.h"
#include "PinNames.h"
 
PwmOut led1(LED1);
PwmOut led2(LED2);


// an SPI sub-class that provides a constructed default
class SPIPreInit : public SPI
{
public:
    SPIPreInit(PinName mosi, PinName miso, PinName clk) : SPI(mosi,miso,clk)
    {
        format(8,3);
        frequency(2000000);
    };
};
 
// an I2C sub-class that provides a constructed default
class I2CPreInit : public I2C
{
public:
    I2CPreInit(PinName PTE0, PinName PTE1) : I2C(PTE0, PTE1)
    {
        frequency(800000);
        start();
        wait(0.1); // needed so that the displays initialise properly at power-on.
    };
};
 
//SPIPreInit gSpi(p5,NC,p7);
//Adafruit_SSD1306_Spi gOled1(gSpi,p26,p25,p24);
 
I2CPreInit gI2C(PTE0,PTE1);
mux_SSD1306_I2c gOled1(gI2C,PTD1,PTB0, 0, 0x78,64);
mux_SSD1306_I2c gOled2(gI2C,PTD1,PTB0, 0, 0x7A,64);
mux_SSD1306_I2c gOled3(gI2C,PTD1,PTB0, 1, 0x78,64);
mux_SSD1306_I2c gOled4(gI2C,PTD1,PTB0, 1, 0x7A,64);

void testdrawline() {
    for (int16_t i=0; i<gOled1.width(); i+=4) {
        gOled1.drawLine(0, 0, i, gOled1.height()-1, WHITE);
        gOled1.display();
    }
    for (int16_t i=0; i<gOled2.height(); i+=4) {
        gOled2.drawLine(0, 0, gOled2.width()-1, i, WHITE);
        gOled2.display();
    }
    for (int16_t i=0; i<gOled3.height(); i+=4) {
        gOled3.drawLine(0, 0, gOled3.width()-1, i, WHITE);
        gOled3.display();
    }
    for (int16_t i=0; i<gOled4.width(); i+=4) {
        gOled4.drawLine(0, 0, i, gOled4.height()-1, WHITE);
        gOled4.display();
    }

}


 
int main()
{   uint16_t x=0;
    uint16_t y=65535;
    uint16_t a=16348;
    uint16_t b=49152;
    led1=1;
    led2=1;

    
    gOled1.clearDisplay();
    gOled2.clearDisplay();
    gOled3.clearDisplay();
    gOled4.clearDisplay();    
    
    testdrawline();

    gOled1.clearDisplay();
    gOled2.clearDisplay();
    gOled3.clearDisplay();
    gOled4.clearDisplay();
 
    gOled1.printf("      Counting Up \r\n\n\n\n", gOled1.width(), gOled1.height());
    gOled2.printf("     Counting Down \r\n\n\n\n", gOled2.width(), gOled2.height());
    gOled3.printf("    More going up \r\n\n\n\n", gOled3.width(), gOled3.height());
    gOled4.printf("   More going down \r\n\n\n\n", gOled4.width(), gOled4.height());
    gOled1.setTextSize(2);
    gOled2.setTextSize(2);
    gOled3.setTextSize(2);
    gOled4.setTextSize(2);

    
    while(1)
    {
        led1 = 0.98;
        gOled1.printf("  %uml\r",x);
        gOled1.display();
        led1 = 1;
        led2 = 0.98;
        gOled2.printf("  %uml\r",y);
        gOled2.display();
        gOled3.printf("  %uK\r",a);
        gOled3.display();
        gOled4.printf("  %uK\r",b);
        gOled4.display();
        led2 = 1;
        x++;
        y--;
        a++;
        b--;
        //wait(0.1);
    }
}