第5章 应用系统设计与调试
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5.1
㋏㒳䆒䅵ὖ䗄
ḍ⫼᠋䳔∖ˈ䆒䅵ߎ⡍ᅮⱘጠܹᓣᑨ⫼㋏㒳ˈᰃ↣ϔϾጠܹᓣ㋏㒳䆒䅵Ꮉ Ꮬᑨ䆹䖒ࠄⱘⳂᷛDŽጠܹᓣᑨ⫼㋏㒳ⱘ䆒䅵ࣙ⹀ӊ㋏㒳ⱘ䆒䅵䕃ӊ㋏㒳䆒䅵ϸ Ͼ䚼ߚˈᑊϨ䖭ϸ䚼ߚⱘ䆒䅵ᰃѦⳌ݇㘨ǃᆚϡৃߚⱘˈጠܹᓣᑨ⫼㋏㒳ⱘ䆒䅵㒣 ᐌ䳔㽕⹀ӊ䕃ӊⱘ䆒䅵П䯈䖯㸠ᴗ㸵ϢᡬЁDŽℸˈ䖭ህ㽕∖ጠܹᓣ㋏㒳䆒䅵 ᎹᏜ᳝䕗⏅८ⱘ⹀ӊ䕃ӊ⸔ˈᑊ᳝❳㒗ᑨ⫼ⱘ㛑DŽ䖭гᰃጠܹᓣᑨ⫼ ㋏㒳䆒䅵Ϣ݊Ҫⱘ㒃㊍ⱘ䕃ӊ䆒䅵⹀ӊ䆒䅵᳔ⱘऎ߿DŽ ᴀゴҹ࣫Ҁᖂ㢃里ᡔ᳝䰤݀ৌ ˄ZZZZLQVLOLFRQFRP˅ 䆒䅵⫳ѻⱘ $50 /LQX[ 䆘ԄᓔথᵓЎॳൟˈ䆺㒚ߚᵤ㋏㒳ⱘ䕃ǃ⹀ӊ䆒䅵ℹ偸ǃᅲ⦄㒚㡖ҹঞ䇗䆩ᡔᎻㄝDŽ $50/LQX[ 䆘Ԅᓔথᵓⱘ䆒䅵ҹᄺдϢᑨ⫼ݐ乒Ўߎথ⚍ˈֱ䆕⫼᠋ᅠ៤ $50 ᡔ ᴃⱘᄺдᓔথⱘৠᯊˈ㗗㰥њ㋏㒳ⱘᠽሩǃ⬉䏃ᵓⱘ䴶鳥ǃᬷ⛁ǃ⬉⺕ݐᆍᗻҹঞ ᅝ㺙ㄝ䯂乬ˈℸˈ䆹ᵓгৃЎጠܹᓣ㋏㒳ЏᵓˈⳈᑨ⫼ϔѯᅲ䰙㋏㒳ЁDŽ ᰃ $50/LQX[ 䆘Ԅᓔথᵓⱘ㒧ᵘḚˈ䚼ߚᴀࡳ㛑ᦣ䗄བϟ˖ ˉ І㸠ষ⬉䏃⫼Ѣ 6&% ㋏㒳Ϣ݊Ҫᑨ⫼㋏㒳ⱘⷁ䎱行ঠІ㸠䗮䆃˗ ˉ ԡ⬉䏃ৃᅠ៤㋏㒳Ϟ⬉ԡ㋏㒳Ꮉᯊ⫼᠋ᣝ䬂ԡ˗ ˉ ⬉⑤⬉䏃Ў 9 ࠄ 9 ⱘ '&'& 䕀ᤶ఼ˈ㒭 6&% ঞ݊Ҫ䳔㽕 9 ⬉ ⑤ⱘೈ⬉䏃կ⬉˗ ˉ 0+] ᳝⑤ᤃЎ㋏㒳ᦤկᎹᯊ䩳ˈ䗮䖛⠛ ݙ3// ⬉䏃ס乥Ў 0+] Ўᖂ໘⧚఼ⱘᎹᯊ䩳˗
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
6
— ѢӬܜ㑻ⱘЁᮁ໘⧚ 3// — 䚼ᯊ䩳ৃ⬅⠛ ݙ3// ס乥ҹᦤ催㋏㒳ᯊ䩳 — 䕧ܹ乥⥛㣗ೈ˖̚0+] — 䕧ߎ乥⥛ৃҹᰃ䕧ܹᯊ䩳ⱘ ס Ꮉ⬉य़ — 9ˈأᏂϡ䍙䖛 Ꮉ⏽ᑺ R R — &̚ & Ꮉ乥⥛ — ᳔催Ў 0+] ᇕ㺙ᔶᓣ — 㛮 4)3 ᇕ㺙
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
2
ˉ )/$6+ ᄬৃ఼ټᄬᬒᏆ䇗䆩དⱘ⫼᠋ᑨ⫼ᑣǃ ጠܹᓣ᪡㋏㒳݊ Ҫ㋏㒳ᥝ⬉ৢ䳔㽕ֱᄬⱘ⫼᠋᭄ㄝ˗ ˉ 6'5$0 ᄬ఼ټЎ㋏㒳䖤㸠ᯊⱘЏ㽕ऎඳˈ㋏㒳ঞ⫼᠋᭄ǃේᷜഛԡѢ 6'5$0 ᄬ఼ټЁ˗ ˉ 00 ҹ㔥ষЎ㋏㒳ᦤկҹ㔥ܹⱘ⠽⧚䗮䘧ˈ䗮䖛䆹ষˈ㋏ 㒳ৃҹ 0 0ESV ⱘ䗳⥛ܹҹ㔥˗ ˉ JTAG ষৃᇍ㢃⠛ݙ䚼ⱘ᠔᳝䚼ӊ䖯㸠䆓䯂ˈ䗮䖛䆹ষৃᇍ㋏㒳䖯㸠 䇗䆩ǃ㓪ㄝ˗ ˉ IIC ᄬৃ఼ټᄬټᇥ䞣䳔㽕䭓ᳳֱᄬⱘ⫼᠋᭄˗ ˉ ㋏㒳ᘏ㒓ᠽሩᓩߎњ᭄ᘏ㒓ǃഄഔᘏ㒓ᖙ乏ⱘࠊᘏ㒓ˈ֓Ѣ⫼᠋ḍ 㞾䑿ⱘ⡍ᅮ䳔∖ˈᠽሩೈ⬉䏃DŽ
ຫໍສະໝຸດ Baidu
6&% 㒧ᵘḚ
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
4
6&% ⱘ⡍ᗻᦣ䗄བϟ˖ ԧ㋏㒧ᵘ — ⫼Ѣጠܹᓣҹ㔥ᑨ⫼ⱘ䲚៤㋏㒳 — ܼ ⱘ 5,6& ᶊᵘ — ᬃᣕǃᇣッᓣDŽݙ䚼ᶊᵘЎッᓣˈ䚼ᄬৃ఼ټЎǃᇣッᓣ — ݙᬜ⥛催ǃࡳ㛑ᔎⱘ $507'0, ໘⧚఼Ḍ — 催ᗻӋ↨ǃѢ -7$* ষⱘ䇗䆩ᮍḜ — 䖍⬠ᠿᦣষ ㋏㒳ㅵ⧚఼ — ᬃᣕ 52065$0ǃ)/$6+ǃ'5$0 䚼 ,2 ҹ ԡⱘᮍᓣ᪡ — ᏺᘏ㒓䇋∖ᑨㄨᓩ㛮ⱘ䚼ᘏ㒓ࠊ఼ — ᬃᣕ ('2ᐌ㾘 6'5$0 ᄬ఼ټ — ৃ㓪ⱘ䆓䯂਼ᳳ˄ৃ䆒ᅮ ̚ Ͼㄝᕙ਼ᳳ˅ — ᄫⱘݭ㓧ކ — 催ᗻӋ↨ⱘҢᄬࠄ఼ټೈⱘ '0$ ষ ϔԧ࣪ⱘᣛҸ᭄ &DFKH — ϔԧ࣪ⱘ .&DFKH — ᬃᣕ /5&˄䖥ᳳ᳔ᇥՓ⫼˅᳓ᤶㅫ⊩ — &DFKH ৃ䜡㕂Ўݙ䚼 65$0 ,,& ষ — ҙᬃᣕЏᓣ — І㸠ᯊ䩳⬅⊶⡍⥛থ⫳఼⫳៤ (WKHUQHW ࠊ఼ — ᏺ⣱থᓣⱘ '0$ ᓩ᪢ — '0$ থ䗕ᬊ㓧ކऎ˄ ᄫ㡖থ䗕ˈ ᄫ㡖ᬊ˅ — 0$& থ䗕ᬊ ),)2 㓧ކऎ˄ ᄫ㡖থ䗕ˈ ᄫ㡖ᬊ˅ — ᭄ᇍޚ䘏䕥 — ᬃᣕッᓣবᤶ — 00ESV ⱘᎹ䗳⥛ — Ϣ ,((( ᷛޚᅠܼݐᆍ — ᦤկ 0,, 㒓ࠊ 0ESV ষ — キㅵ⧚ֵো⫳៤ — ⠛& ݙ$0˄ৃ䖒 ϾⳂⱘഄഔ˅ — ᏺ᱖ذ⡍ᗻⱘܼঠᎹᓣ — ᬃᣕ䭓ⷁࣙᓣ — ࣙᢚ㺙 3'$ ⫳៤ +'/& +LJK/HYHO'DWD/LQN&RQWURO 催ሖ᭄䫒䏃ण䆂 — +'/& ण䆂⡍ᕕ˖ᷛᖫẔ⌟Ϣৠℹ˗䳊ᦦܹϢߴ䰸˗ぎ䯆Ẕ⌟থ䗕˗)&6 ⫳៤Ẕ⌟˄ ԡ˅˗㒜ℶẔ⌟Ϣথ䗕
5.2.2 S3C4510B ⱘᓩ㛮ߚᏗঞֵোᦣ䗄
ᰃ 6&% ⱘᓩ㛮ߚᏗ
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
7
6&% ⱘᓩ㛮ߚᏗ
ᓩ㛮ֵোᦣ䗄བϟ˖
㸼 5-2-1 S3C4510B ⱘᓩ㛮ֵোᦣ䗄 ֵ XCLK ো ᓩ㛮ো 80 ㉏ ൟ I ᦣ 䗄 6&% ⱘ㋏㒳ᯊ䩳⑤DŽབᵰ CLKSEN ЎԢ⬉ᑇˈ䗮 䖛 PLL ס乥ⱘ䕧ߎᯊ䩳Ў S3C4510B ⱘݙ䚼㋏㒳ᯊ 䩳DŽ བᵰ CLKSEN Ў催⬉ᑇˈ XCLK ⳈЎ S3C4510B ⱘݙ䚼㋏㒳ᯊ䩳DŽ MCLKO/SDCL K CLKSEL 83 I ᯊ䩳䗝ᢽDŽབᵰ CLKSEL ЎԢ⬉ᑇˈPLL 䕧ߎᯊ䩳 Ў S3C4510B ⱘݙ䚼㋏㒳ᯊ䩳DŽ བᵰ CLKSEL Ў催⬉ᑇˈ XCLK ⳈЎ S3C4510B ⱘݙ䚼㋏㒳ᯊ䩳DŽ nRESET 82 I ԡֵোDŽQ5ESET Ў S3C4510B ⱘԡֵোˈ㽕Փ㋏ 77 O ㋏㒳ᯊ䩳䕧ߎDŽSDCLK Ў SDRAM ᦤկᯊ䩳ֵো
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
1
せ 5 』 Ꮓ⩗㈪㐎䃭䃐̽䄲䄄
ᴀゴЏ㽕ҟ㒡Ѣ 6&% ⱘ⹀ӊ㋏㒳ⱘ䆺㒚䆒䅵ℹ偸ǃᅲ⦄㒚㡖ǃ⹀ӊ㋏ 㒳ⱘ䇗䆩ᮍ⊩ㄝˈ 䗮䖛ᇍᴀゴⱘ䯙䇏ˈ ৃҹՓ㒱᭄ⱘ䇏㗙᳝ḍ㞾䑿ⱘ䳔∖ǃ 䆒䅵⡍ᅮᑨ⫼㋏㒳ⱘ㛑DŽ ሑㅵᴀゴ᠔ᦣ䗄ⱘݙᆍЎѢ 6&% ⱘᑨ⫼㋏㒳䆒䅵ˈԚ⬅Ѣ $50 ԧ㋏㒧 ᵘⱘϔ㟈ᗻǃҹঞೈ⬉䏃ⱘ䗮⫼ᗻˈᴀゴⱘ᠔᳝ݙᆍᇍ䆒䅵݊ҪѢ $50 ݙḌ㢃 ⠛ⱘᑨ⫼㋏㒳ˈг᳝ᕜⱘখ㗗ӋؐDŽ ᴀゴⱘЏ㽕ݙᆍࣙᣀ˖ ˉ ጠܹᓣ㋏㒳䆒䅵ⱘᴀᮍ⊩DŽ ˉ 6&% ὖ䗄DŽ ˉ 6&% ⱘᴀᎹॳ⧚ ˉ Ѣ 6&% ⱘ⹀ӊ㋏㒳䆒䅵䆺䗄 ˉ ⹀ӊ㋏㒳ⱘ䇗䆩ᮍ⊩
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵 ⱘԢ⬉ᑇDŽ CLKOEN TMODE FILTER TCK TMS TDI 76 63 55 58 59 60 I I AI I I I
8
㒳ৃ䴴ԡˈnRESET ᖙ乏㟇ᇥֱᣕ 64 ϾЏᯊ䩳਼ᳳ ᯊ䩳䕧ߎܕ䆌火ℶDŽ催⬉ᑇܕ䆌㋏㒳ᯊ䩳ֵো䕧ߎˈ Ԣ⬉ᑇ火ℶDŽ ⌟䆩ᓣ䗝ᢽDŽԢ⬉ᑇЎℷᐌᎹᓣˈ催⬉ᑇЎ㢃⠛ ⌟䆩ᓣDŽ བᵰՓ⫼ PLLˈ ᑨ䆹ᓩ㛮᭄ᄫഄП䯈 820pF ⱘ䱊 ⫋⬉ᆍDŽ -7$* ⌟䆩ᯊ䩳DŽJTAG ⌟䆩ᯊ䩳ֵো⫼Ѣߛᤶ⢊ᗕֵᙃ Ẕ⌟᭄ⱘ䕧ܹ䕧ߎDŽ䆹ᓩ㛮⠛ݙϟᢝDŽ -7$* ⌟䆩ᓣ䗝ᢽDŽ 䆹ֵোࠊ S3C4510B ⱘ JTAG ⌟ 䆩᪡DŽ䆹ᓩ㛮⠛ݙϞᢝDŽ -7$* ⌟䆩᭄䕧ܹDŽ JTAG ⌟䆩᪡ⱘ䖛Ёˈ 䆹ֵ োᇚᣛҸ᭄І㸠䗕ܹ S3C4510BDŽ䆹ᓩ㛮⠛ݙϞ ᢝDŽ TDO nTRST ADDR[21:0]/ ADDR[10]/AP 61 62 117-110 129-120 135-132 XDATA[31:0] 141-136 154-144 166-159 175-169 nRAS[3:0]/ nSDCS[3:0] nCAS[3:0] nCAS[0] /nSDRAS nCAS[1] /nSDCAS nCAS[2]/CKE nDWE 99 O '5$0 ݭՓ㛑ֵোDŽ 䆹ᓩ㛮Ў DRAM 㒘ᦤկݭ᪡ֵোDŽ ˄nWBE[3:0]⫼ѢЎ ROM/SRAM/FLASH ᄬ఼ټ㒘ᦤկ ݭ᪡ֵোDŽ˅ nECS[3:0] 70,69, 68,67 nEWAIT 71 I O 䚼 ,2 ⠛䗝ֵোDŽৃҹ᳝ 4 Ͼ䚼 I/O 㒘ᇘࠄᄬټ ぎ䯈ˈ ↣ϔϾ䚼 I/O 㒘ⱘഄഔ㣗ೈ᳔Ў 16KBDŽ nECS ᦤկ↣ϔϾ䚼 I/O 㒘ⱘ⠛䗝ֵোDŽ 䚼ㄝᕙֵোDŽ 䆹ֵো⫼Ѣ䆓䯂䚼 I/O 䆒ᯊ,⬅ 䆒ᦦܹㄝᕙ਼ᳳDŽ 94,91, 90,89 98,97, 96,95 O O '5$0 㸠ഄഔ䫕ᄬֵোDŽ S3C4510B ᬃᣕ᳔ 4 Ͼ DRAM 㒘ˈ ↣Ͼ nRAS 䕧ߎࠊϔ㒘DŽ nSDCS[3:0]⫼ SDRAM ⱘ⠛䗝ֵোDŽ '5$0 ߫ഄഔ䫕ᄬֵোDŽ᮴䆎䆓䯂ાϔϾ DRAM 㒘ˈ4 Ͼ nCAS 䕧ߎֵোഛ㸼冫ᄫ㡖䗝ᢽDŽnSDRAS Ў SDRAM ⱘ㸠ഄഔ䫕ᄬֵোˈnSDCAS Ў SDRAM ⱘ ߫ഄഔ䫕ᄬֵোˈCKE Ў SDRAM ⱘᯊ䩳Փ㛑ֵোDŽ I/O O I O -7$* ⌟䆩᭄䕧ߎDŽ JTAG ⌟䆩᪡ⱘ䖛Ёˈ 䆹ֵ োᇚᣛҸ᭄І㸠䗕ߎ S3C4510BDŽ -7$* ԡֵোˈԢ⬉ᑇԡDŽᓖℹԡ JTAG 䘏䕥DŽ䆹 ᓩ㛮⠛ݙϞᢝDŽ ഄഔᘏ㒓DŽ 22 ԡⱘഄഔᘏ㒓ৃᇏഔ↣ϔϾ ROM/ SRAM 㒘ǃFLASH ᄬ఼ټ㒘ǃDRAM 㒘䚼 I/O 㒘ⱘ 4M ᄫ˄64M ᄫ㡖˅ⱘഄഔ㣗ೈDŽ 䚼᭄ᘏ㒓˄ঠǃ ԡ˅DŽS3C4510B ᬃᣕ䚼 8 ԡˈ16 ԡˈ32 ԡⱘ᭄ᆑᑺDŽ
$50/LQX[ 䆘Ԅᓔথᵓⱘ㒧ᵘḚ
5.2 S3C4510B ὖ䗄
5.2.1 S3C4510B ঞ⠛ݙೈㅔҟ
䖯㸠㋏㒳䆒䅵Пࠡˈ᳝ᖙ㽕ᇍ $50 /LQX[ 䆘ԄᓔথᵓϞⱘ $50 㢃⠛ 6&% ঞ݊Ꮉॳ⧚䖯㸠↨䕗䆺㒚ⱘҟ㒡ˈ䇏㗙া᳝ᇍ䆹ᖂ໘⧚఼ⱘᎹॳ⧚᳝њ䕗䆺㒚 ⱘњ㾷ˈᠡ㛑䖯㸠⡍ᅮᑨ⫼㋏㒳ⱘ䆒䅵DŽ 6DPVXQJ ݀ৌⱘ 6&% ᰃѢҹ㔥ᑨ⫼㋏㒳ⱘ催ᗻӋ↨ ԡ 5,6& ᖂ ࠊ఼ˈݙϔϾ⬅ $50 ݀ৌ䆒䅵ⱘ ԡ $507'0,5,6& ໘⧚఼Ḍˈ$507'0, ЎԢࡳ㗫ǃ催ᗻ㛑ⱘ Ḍˈ᳔䗖ড়⫼ѢᇍӋḐঞࡳ㗫ᬣᛳⱘᑨ⫼എড়DŽ
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
3
䰸њ $507'0, Ḍҹˈ6&% ↨䕗䞡㽕ⱘ⠛ݙೈࡳ㛑ഫࣙᣀ˖ — Ͼᏺ㓧ᦣކ䗄ヺ˄%XIIHU'HVFULSWRU˅ⱘ +'/& 䗮䘧 — Ͼ 8$57 䗮䘧 — Ͼ *'0$ 䗮䘧 — Ͼ ԡᅮᯊ఼ — Ͼৃ㓪ⱘ ,2 ষDŽ ⠛ⱘݙ䘏䕥ࠊ⬉䏃ࣙᣀ˖ — Ёᮁࠊ఼ — '5$06'5$0 ࠊ఼ — 52065$0 )/$6+ ࠊ఼ — ㋏㒳ㅵ⧚఼ — ϔϾݙ䚼 ԡ㋏㒳ᘏ㒓ӆ㺕఼ — ϔϾ䚼ᄬ఼ࠊ఼ټDŽ 6&% 㒧ᵘḚབ ᠔冫DŽ
ARM ᑨ⫼㋏㒳ᓔথ䆺㾷ũũѢ S3C4510B ⱘ㋏㒳䆒䅵
5
— ഄഔ᧰㋶ᓣ˄ৃᠽሩࠄಯᄫ㡖˅ — ৃ䗝ᢽ &5& ᓣ䴲 &5& ᓣ — ⫼Ѣᯊ䩳ᘶⱘ᭄ᄫ 3// ഫ — ⊶⡍⥛⫳៤఼ — থ䗕ᬊᬃᣕ 15=15=,)0᳐ߛᮃ⡍᭄Ḑᓣ — ಲ⦃Ϣ㞾ࡼಲ⊶ᓣ — ᄫⱘথ䗕ᬊ ),)2 — ৃ䗝ⱘ ᄫ ᄫ᭄Ӵ䗕ᮍᓣ — ᭄ᇍޚ䘏䕥 — ৃ㓪Ёᮁ — 0RGHP ষ — 催䖒 0ESV ⱘᎹ䗳⥛ — Ѣ ԡԡ㒘ⱘ +'/& ᏻ䭓ᑺ — ↣Ͼ +'/& ᳝ 䗮䘧 '0$ 㓧ᦣކ䗄ヺ⫼Ѣথ䗕ᬊ '0$ ࠊ఼ — ⫼Ѣᄬࠄ఼ټᄬ఼ټǃᄬ ࠄ఼ټ8$75ǃ8$75 ࠄᄬ఼ټ᭄Ӵ䗕ⱘ 䗮䘧 䗮⫼ '0$ ࠊ఼ˈϡফ &38 ᑆ乘 — ৃ⬅ᑣ䚼 '0$ 䇋∖ਃࡼ — ৃ⑤ޣഄഔⳂⱘഄഔˈ᮴䆎 ԡǃ ԡ ԡ᭄Ӵ䕧 — 辵᭄⣱থᓣ 8$57 — ϾৃᎹѢ '0$ ᮍᓣЁᮁᮍᓣⱘ 8$57 ഫ — ᬃᣕ ǃǃǃ ԡⱘІ㸠᭄থ䗕ᬊ — ⊶⡍⥛ৃ㓪 — ԡ ԡذℶԡ — ༛ي᷵偠 — 䯈䱨ֵোⱘ⫳៤ϢẔ⌟ — ༛ي᷵偠ǃ㽚Ⲫᏻ䫭䇃Ẕ⌟ — h ᯊ䩳ᓣ — ᬃᣕ㑶থ䗕ᬊ ᅮᯊ఼ — Ͼৃ㓪 ԡᅮᯊ఼ — 䯈䱨ᓣ㾺থᓣᎹ ৃ㓪 ,2 ষ — Ͼৃ㓪 ,2 ষ — ৃߚ߿䜡㕂Ў䕧ܹᓣǃ䕧ߎᓣ⡍⅞ࡳ㛑ᓣ Ёᮁࠊ఼ — ϾЁᮁ⑤ˈࣙᣀ Ͼ䚼Ёᮁ⑤ — ℷᐌЁᮁᖿ䗳Ёᮁᓣ˄,54ǃ),4˅