int FLAG_TFTP = 1;

char * buff="Hello World ->\n";

int gboot_main()

{

int num;

//unsigned char buf[1024*4];

#ifdef MMU_ON

mmu_init();

#endif

uart_init();

led_init();

button_init();

init_irq();

led_off();

dma_init();

dma_start();

dm9000_init();

while(1)

{

printf("\n***************************************\n\r");

printf("\n****************MYBOOT*****************\n\r");

printf("1:Set Out a Arp Package to Get Host Ip and MAC!\n\r");

printf("2:Download Linux Kernel from TFTP Server!\n\r");

printf("3:Boot Linux from RAM!\n\r");

printf("\n Plese Select:");

scanf("%d",&num);

switch (num)

{

case 1:

arp_progress();

break;

case 2:

tftp_send_request("tftp.c");

while(FLAG_TFTP);

break;

case 3:

boot_linux();

//boot_linux_nand();

break;

default:

printf("Error: wrong selection!\n\r");

break;

}

}

return 0;

}