NuMaker-PFM-M453的ARM mbed OS 编程示例

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    NuMaker-PFM-M453的ARM mbed OS 编程示例

   下载固件更新完成就可以编写程序了。我们可以点击U盘里的MBED.html文件，也可以先去mbed网站上登录自己的mbed用户，进行项目开发。这里我们选用第一种方式，这样快一点，因为一般mbed用户可能会用不同的板子，和项目，会要求选择一下。

下面来说明下操作过程。然后编写一个程序验证一下。

1.当我们点击MBED.html文件，出现下图，这时我们点击complier按钮。

              



2.选择一个官方提供的程序工程，编辑一下，它编辑后会自动下载。

                 
               





3.下载过程.......

                     


4.观察现象，符合程序的描述。

5.源程序

#include "mbed.h"



#if defined(TARGET_NUMAKER_PFM_NUC472)

DigitalOut  rgbled_B(LED_BLUE);  // low-active

DigitalOut  rgbled_R(LED_RED);  // low-active

DigitalOut  rgbled_G(LED_GREEN);  // low-active

DigitalOut  greenled(PG_0);  // low-active

DigitalOut  buzzer(PD_11);  // low-active

DigitalIn  button_SW1(SW1);  // press button =0

DigitalIn  button_SW2(SW2);  // press button =0

#elif defined(TARGET_NUMAKER_PFM_M453)*/

DigitalOut  rgbled_B(LED_BLUE);  // low-active

DigitalOut  rgbled_R(LED_RED);  // low-active

DigitalOut  rgbled_G(LED_GREEN);  // low-active

DigitalOut  greenled(PB_12);  // low-active

DigitalOut  buzzer(PE_2);  // low-active

DigitalIn  button_SW1(SW2);  // press button =0

DigitalIn  button_SW2(SW3);  // press button =0

#elif defined(TARGET_NUMAKER_PFM_M487)

DigitalOut  rgbled_B(LED_YELLOW);  // in M487, rgbled_B is yellow, not blue, low-active

DigitalOut  rgbled_R(LED_RED);  // low-active

DigitalOut  rgbled_G(LED_GREEN);  // low-active

DigitalOut  greenled(D2);  // in M487, change the pin to match real hardware, low-active

DigitalOut  buzzer(D3);  // in M487, change the pin to match real hardware, low-active

DigitalIn  button_SW1(SW2);  // in M487, button_SW1 is SW2, press button =0

DigitalIn  button_SW2(SW3);  // in M487, button_SW2 is SW3, press button =0

#elif defined(TARGET_NUMAKER_PFM_NANO130)

DigitalOut  rgbled_B(LED_YELLOW);  // in NANO130, rgbled_B is yellow, not blue, low-active

DigitalOut  rgbled_R(LED_RED);  // low-active

DigitalOut  rgbled_G(LED_GREEN);  // low-active

DigitalOut  greenled(D2);  // in NANO130, change the pin to match real hardware, low-active

DigitalOut  buzzer(D3);  // in NANO130, change the pin to match real hardware, low-active

DigitalIn  button_SW1(SW1);  // press button =0

DigitalIn  button_SW2(SW2);  // press button =0

#endif



// main() runs in its own thread in the OS

// (note the calls to Thread::wait below for d elays)

int main() {

  

  rgbled_B=1; rgbled_R=1; rgbled_G=1;

  greenled=1;

  buzzer=1;

  

  while (true) {

  // press SW1 will turn on greeled and RGBLED=blue

  if (button_SW1==0) {

  greenled=0;

  //rgbled_B=0;

  

  rgbled_G=0;

  //rgbled_R=0;

  

   }  

  else  {

  greenled=1;

  //rgbled_B=1;

  

  rgbled_G=1;

   //rgbled_R=1;

  }

  // press SW2 will turn on buzzer  

  if (button_SW2==0) buzzer=0;

  else  buzzer=1;

  }

}