使用Keil MDK for ARM来开发KEA并配有LED闪烁的例程

系统管理员 2023-02-16 00:41 24阅读 0赞

> 一个NXP代理商的建议：尽量选择官方S32DS来开发KEA和S32K系列，不建议使用第三方的IDE，包括Keil

## 硬件准备 ##

*  开发板：S9KEAZN16AMLH（其它的MCU也是类似）
 *  仿真器： J-Link

也有许多同学问到如何使用J-Link与MCU的连接，我是使用SWD方式，请看图了：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70]  
其中J-Link的SWD相关接口的定义是：

*  第1脚：Vref，这个必须连接MCU的供电电源
 *  第7脚：SWIO
 *  第9脚：SWCLK
 *  第15脚：RESET
 *  第20脚：GND

## Keil MDK for ARM的安装 ##

这个看之前的文章： [在Windows安装MDK-ARM V5.30][Windows_MDK-ARM V5.30]

## LED闪烁的例程 ##

### LED原理图 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 1]  
使用PTD2来控制一个LED， 高电平就亮，低电平就不亮。

### 使用Keil新建工程 ###

这里主要记录一些关键点，其中的我工程名称是 S9KEAZN16\_TEST8：  
（1）选择MCU型号  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 2]

> 注: 如果这里没有显示你要开发的MCU的型号，那就先要安装相应的packs

（2）选择相应的组件  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 3]  
（3）初始化工程目录如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 4]

### 移植Keil的LED闪烁的例程到自己的工程目录中 ###

（1）将下面文档复制一份放到自己的工程目录下面：

*  Blinky.c :  
    D:\\Keil\_v5\\ARM\\Packs\\Keil\\Kinetis\_KEAxx\_DFP\\1.3.0\\Boards\\NXP\\TRK-KEA64\\Blinky
 *  Board\_LED.h :  
    D:\\Keil\_v5\\ARM\\Packs\\Keil\\MDK-Middleware\\7.11.1\\Board
 *  LED\_TRK-KEA64.c : D:\\Keil\_v5\\ARM\\Packs\\Keil\\Kinetis\_KEAxx\_DFP\\1.3.0\\Boards\\NXP\\TRK-KEA64\\Common

（2）移植后的工程目录如下：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 5]

（4）把这三个文件添加到工程中：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 6]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 7]  
（5）修改 Blinky.c和LED\_TRK-KEA64.c：

// Name: Blinky.c
    
    #include "SKEAZN642.h" // Device header
    #include "cmsis_os.h" // ARM::CMSIS:RTOS:Keil RTX
    #include "Board_Buttons.h" // ::Board Support:Buttons
    #include "Board_LED.h" // ::Board Support:LED
    
    
    /*---------------------------------------------------------------------------- Main function *----------------------------------------------------------------------------*/
    int main (void) { 
    
      SystemCoreClockUpdate();
    
      LED_Initialize();                         /* LED Initialization */
      Buttons_Initialize();                     /* Buttons Initialization */
    
      while (1) { 
        LED_On(0);                            /* Turn specified LED on */
        osDelay(500);                           /* Wait 500ms */
     
        LED_Off(0);                           /* Turn specified LED off */
        osDelay(500);                           /* Wait 500ms */
      }
    }

// Name: LED_TRK-KEA64.c
    #include "SKEAZN642.h" // Device header
    #include "Board_LED.h" // ::Board Support:LED
    
    #define NUM_LEDS (1) /* Number of available LEDs */
    
    /* LED pins are PTC0..PTC3 (GPIOA.16..19) */
    const uint32_t led_mask[] = {  1U << 26};
    
    /** \fn int32_t LED_Initialize (void) \brief Initialize LEDs \returns - \b 0: function succeeded - \b -1: function failed */
    int32_t LED_Initialize (void) { 
    
      GPIOA->PDDR |= (led_mask[0]);         /* enable PTD2 as Output */
    
      LED_SetOut (0);                         /* switch LEDs off */
    
      return 0;
    }
    
    /** \fn int32_t LED_On (uint32_t num) \brief Turn on requested LED \param[in] num LED number \returns - \b 0: function succeeded - \b -1: function failed */
    int32_t LED_On (uint32_t num) { 
    
      if (num < NUM_LEDS) { 
        GPIOA->PSOR = led_mask[num];
      }
    
      return 0;
    }
    
    /** \fn int32_t LED_Off (uint32_t num) \brief Turn off requested LED \param[in] num LED number \returns - \b 0: function succeeded - \b -1: function failed */
    int32_t LED_Off (uint32_t num) { 
    
      if (num < NUM_LEDS) { 
        GPIOA->PCOR = led_mask[num];
      }
    
      return 0;
    }
    
    /** \fn int32_t LED_SetOut (uint32_t val) \brief Write value to LEDs \param[in] val value to be displayed on LEDs \returns - \b 0: function succeeded - \b -1: function failed */
    int32_t LED_SetOut(uint32_t value) { 
      int i;
    
      for (i = 0; i < NUM_LEDS; i++) { 
        if (value & (1<<i)) { 
          LED_On (i);
        } else { 
          LED_Off(i);
        }
      }
    	
      return 0;
    }
    
    /** \fn uint32_t LED_GetCount (void) \brief Get number of LEDs \return Number of available LEDs */
    uint32_t LED_GetCount (void) { 
      return NUM_LEDS;
    }

注意的是，要看手册，PTD2对应是GPIOA的第26位：  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 8]

### 编译工程 ###

这里没什么好说的  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 9]

### 配置J-Link ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 10]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 11]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 12]

### 调试程序 ###

![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 13]  
![在这里插入图片描述][watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2ZlaW1lbmcxMTY_size_16_color_FFFFFF_t_70 14]  
如果顺利的话，你将会看到LED不停地一闪一闪，其中周期是500ms。

OVER~~

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[Windows_MDK-ARM V5.30]: https://blog.csdn.net/feimeng116/article/details/106083216
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