z-stack代码分析--main函数

/*********************************************************************
 * @fn      main
 * @brief   First function called after startup.
//启动后第一个调用的函数
 * @return  don't care
 */
int main( void )
{
  // Turn off interrupts
//禁用所有中断
  osal_int_disable( INTS_ALL );
  // Initialization for board related stuff such as LEDs
//初始化板载相关设备：时钟振荡器、缓存预取控制、LED和Joystick
  HAL_BOARD_INIT();
  // Make sure supply voltage is high enough to run
//电压检测，确保芯片正常运行的电压
  zmain_vdd_check();
  // Initialize board I/O
//初始化板上的IO，LED关闭和检测重启原因
  InitBoard( OB_COLD );
  // Initialze HAL drivers
//初始化硬件驱动
  HalDriverInit();
  // Initialize NV System
//初始化NV系统，也就是非易失性存储系统，相当与对FLASH的初始化
  osal_nv_init( NULL );
  // Initialize the MAC
//初始化MAC层
  ZMacInit();
  // Determine the extended address
//判断物理扩展地址是否合法
  zmain_ext_addr();
  // Initialize basic NV items
//初始化Z-Stack全局变量，用NV中的值初始化终端
  zgInit();
//如果禁止了NWK,APS,ZDO函数功能，则需要单独初始化AF层
#ifndef NONWK
  // Since the AF isn't a task, call it's initialization routine
//初始化AF层
  afInit();
#endif
  // Initialize the operating system
//初始化操作系统
  osal_init_system();
  // Allow interrupts
//开启中断
  osal_int_enable( INTS_ALL );
  // Final board initialization
//最终板载初始化（按键初始化和配置）
  InitBoard( OB_READY );
  // Display information about this device
//显示设备信息
  zmain_dev_info();
  /* Display the device info on the LCD */
//如果有LCD
#ifdef LCD_SUPPORTED
//液晶显示初始化
  zmain_lcd_init();
#endif
#ifdef WDT_IN_PM1
  /* If WDT is used, this is a good place to enable it. */
//使能看门狗
  WatchDogEnable( WDTIMX );
#endif
//进入操作系统
  osal_start_system(); // No Return from here
  return 0;  // Shouldn't get here.
} // main()