Code điều khiển thiết bị qua internet

[ThanhPhong1991]

Chương trình chính
////////////////////////////////////////////////////
#define THIS_IS_STACK_APPLICATION
#include "TCPIP Stack/TCPIP.h"
#include "MainDemo.h"
APP_CONFIG AppConfig;
BYTE AN0String[8];
#if defined(EXPLORER_16)
int __C30_UART = 2;
#endif
static void InitAppConfig(void);
static void InitializeBoard(void);
static void ProcessIO(void);
#if defined(__18CXX)
#if defined(HI_TECH_C)
void interrupt low_priority LowISR(void)
#else
#pragma interruptlow LowISR
void LowISR(void)
#endif
{
TickUpdate();
}
{
#if defined(ZG_CS_TRIS) zgEintISR();
#endif // ZG_CS_TRIS
}
#if defined(__18CXX)
void main(void)
#else
int main(void)
#endif
{
static TICK t = 0;
static DWORD dwLastIP = 0;
InitializeBoard();
TickInit();
#if defined(STACK_USE_MPFS) || defined(STACK_USE_MPFS2)
MPFSInit();
#endif
InitAppConfig();
if(BUTTON0_IO == 0u)
{
#if defined(EEPROM_CS_TRIS) ||
defined(SPIFLASH_CS_TRIS)
TICK StartTime = TickGet();
LED_PUT(0x00);
}
StackInit();
while(1)
{
if(TickGet() - t >= TICK_SECOND/2ul)
{
t = TickGet();
LED0_IO ^= 1;
}
StackTask();
StackApplications();
#if defined(STACK_USE_GENERIC_TCP_CLIENT_EXAMPLE)
GenericTCPClient();
#endif
#if defined(STACK_USE_GENERIC_TCP_SERVER_EXAMPLE)
GenericTCPServer();
#endif
#if defined(STACK_USE_SMTP_CLIENT)
SMTPDemo();
#endif
#if defined(STACK_USE_ICMP_CLIENT)
PingDemo();
#endif
#if defined(STACK_USE_SNMP_SERVER) && !defined(SNMP_TRAP_DISABLED)
SNMPTrapDemo();
if(gSendTrapFlag)
SNMPSendTrap();
#endif
ProcessIO();
if(dwLastIP != AppConfig.MyIPAddr.Val)
{
dwLastIP = AppConfig.MyIPAddr.Val;
#if defined(STACK_USE_UART)
putrsUART((ROM char*)"\r\nNew IP Address: ");
#endif
DisplayIPValue(AppConfig.MyIPAddr);
#if defined(STACK_USE_UART)
putrsUART((ROM char*)"\r\n");
#endif
#if defined(STACK_USE_ANNOUNCE)
AnnounceIP();
#endif
}
}
}

static void InitializeBoard(void)
{
// LEDs
LED0_TRIS = 0;
LED1_TRIS = 0;
LED2_TRIS = 0;
LED3_TRIS = 0;
LED4_TRIS = 0;
LED5_TRIS = 0;
LED6_TRIS = 0;
#if !defined(EXPLORER_16)
LED7_TRIS = 0;
#endif

Anh chị có ai hiểu đoạn code này xin giải thích giúp em với. Thanks các anh chị trước