Flash addres Before ping or tftp

>md 0x0
00000000 : 00800080 00800080 00800080 00800080  ................
00000010 : 00800080 00800080 00800080 00800080  ................
00000020 : 00800080 00800080 00800080 00800080  ................
00000030 : 00800080 00800080 00800080 00800080  ................
00000040 : 00800080 00800080 00800080 00800080  ................
00000050 : 00800080 00800080 00800080 00800080  ................
00000060 : 00800080 00800080 00800080 00800080  ................
00000070 : 00800080 00800080 00800080 00800080  ................
00000080 : 00800080 00800080 00800080 00800080  ................
00000090 : 00800080 00800080 00800080 00800080  ................
000000a0 : 00800080 00800080 00800080 00800080  ................
000000b0 : 00800080 00800080 00800080 00800080  ................
000000c0 : 00800080 00800080 00800080 00800080  ................
000000d0 : 00800080 00800080 00800080 00800080  ................
000000e0 : 00800080 00800080 00800080 00800080  ................
000000f0 : 00800080 00800080 00800080 00800080  ................

flash adress after ping or tftp

>md 0x0
00000000 : 00920092 00920092 00920092 00920092  ................
00000010 : 00920092 00920092 00920092 00920092  ................
00000020 : 00920092 00920092 00920092 00920092  ................
00000030 : 00920092 00920092 00920092 00920092  ................
00000040 : 00920092 00920092 00920092 00920092  ................
00000050 : 00920092 00920092 00920092 00920092  ................
00000060 : 00920092 00920092 00920092 00920092  ................
00000070 : 00920092 00920092 00920092 00920092  ................
00000080 : 00920092 00920092 00920092 00920092  ................
00000090 : 00920092 00920092 00920092 00920092  ................
000000a0 : 00920092 00920092 00920092 00920092  ................
000000b0 : 00920092 00920092 00920092 00920092  ................
000000c0 : 00920092 00920092 00920092 00920092  ................
000000d0 : 00920092 00920092 00920092 00920092  ................
000000e0 : 00920092 00920092 00920092 00920092  ................
000000f0 : 00920092 00920092 00920092 00920092  ................