?????????????????ο???
???????????? ???????[ 2013/10/16 14:17:20 ] ????????????
?????????????????????ο???
????1.CPU?????????????????main()????????????
????????????CPU??reset????????CPU??λ?????CPU??????(arm??0x00000000??x86??0xfffffff0)??????.?? ?????CPU??????????CPU?????????mmu??????????????α????????йμ??????????ж???????????????????????????? nandflash????OS??TEXT???????sdram??????????sdram??main()
????2.?????ж???ж??CPU??????????
?????ж????????????????????????κη??????????????賬??????????CPU????ж?????????е??????????????????????????????????????????????ж????????л?????μ??????е?????
????3.????ISO OSI???????Layer1????·??Layer2???????Layer3??????
?????????????????????????????????????????·???
??????·????????????????????δ????????
????????????豸????y????佨??????????????????????????????????????????????Ч???????????е??????????????豸?е???????????????????????????????????????
????4.makefile???????????????
????????????е????????????????????????????????????????У?makefile?????????е?????????????Щ?????????????Щ???????? ??????Щ?????????±???????????и????????????????? makefile?????Shell???????????????????в??????????makefile??????????——“?????????”?????д?????????? make?????????????????????????????????????????Ч???make?????????????????????makefile??????????????????????? ??????IDE??????????????磺Delphi??make??Visual C++??nmake??Linux??GNU??make???????makefile??????????????????????????
????5.UNIX?????????????????????????????????????????????????????????
????ls cat
????type tail
????6.Linux???????????Щ???????λ??
????-rw-r--r—1
????????????????????????????????????????????????[ d ]?????????[ - ]?????????????[ l ]?????????(link file)??
????????[ b ]??????????????????????????豸??
????????[ c ]??????????????????ж???豸?????????????
?????????????????У????????飬??????rwx????????????????????[r]???????
????[w]?????д??[x]???????У?
????????????????????????
???????????????????????
??????????????????????????????
????7.Linux?г??????????
????????????????ls
??????????????cd ??cd / /home
????????????mkdir mkdir xiong
???????????????rmdir ?? rmdir ??mnt??cdrom
??????????????RM ?? rm ??ucdos.bat
???????????????cp ?? cp ??ucdos???? ??fox
??????????????????man ?? man ls
????????????????less ?? less mwm.lx
?????????????type ??type readme>>direct???????readme????????????direct??
????8.???????????Щ?????
????????????????????湲??
????9.????κ?????
?????????????????λ????????????????????????????????????????????????????????????????????????????????????????????????????
??????????????????λ?????????????????????????????????ε?????????????????????????????????С?????????????????????????????????? ??????????????????????????????????????????С????檔 ?ε?????????????????????????д?????????????????????????б????????????????????????
??????????????????????????????????????????????????????????????????????????ε?????????????????????????????????????????????????????????????
??????
???·???
??????????????????
2023/3/23 14:23:39???д?ò??????????
2023/3/22 16:17:39????????????????????Щ??
2022/6/14 16:14:27??????????????????????????
2021/10/18 15:37:44???????????????
2021/9/17 15:19:29???·???????·
2021/9/14 15:42:25?????????????
2021/5/28 17:25:47??????APP??????????
2021/5/8 17:01:11