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这种OLED屏的主控芯片一般是SSD1306，听说不用移植，直接搜库“SSD1306”

Adafruit这个标志比较熟悉，好吧就它了，点进去，导入库

下边的代码稍做修改，只要是IIC的引脚要接对，没有RST随便写了一个

/*
 *  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"
 
DigitalOut myled(LED1);
 
class I2CPreInit : public I2C
{
public:
    I2CPreInit(PinName sda, PinName scl) : I2C(sda, scl)
    {
        frequency(400000);
        start();
    };
};
 
I2CPreInit gI2C(I2C_SDA, I2C_SCL);
Adafruit_SSD1306_I2c gOled2(gI2C,D13,0x78,64,128);
 
int main()
{   uint16_t x=0;
 
    gOled2.printf("%ux%u OLED Display\r\n", gOled2.width(), gOled2.height());
    
    while(1)
    {
        myled = !myled;
        gOled2.printf("%u\r",x);
        gOled2.display();
        x++;
        wait(1.0);
    }
}

就这么简单，编译，下载，OLED就亮了起来，有图有真相