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发表于 2004-2-11 21:24  资料  个人空间  短消息  加为好友 
??????????.....???÷??????????-?????è????-???à?????±??????????????,????

[post]  ?ú????

?ú????????·????????ù??????????×÷?×????


  1.???ú?ü???????ê??????????·??????ó???á???????????§????????°???USB2.0???????????????????á???°??·????????????ó?·??????????????????×÷??USB2.0???????????????????è???è??????·?°??????????????????????????????¤?±??????×÷?????÷???ê??????????·???????×÷???????×????

2.??·?°???????????????×÷??USB2.0???????????????????è????·????÷????????·?????????

3.??????·?°???????·??????????????è????·????é??


?è????·????é??????


         USB2.0???????????????????á???°??·????????????ó

??????·????á???°??·????????????ó:

1?????????????????á??

a.??TLC2543??????MAX1270CA?????÷??×÷???é???·°????÷°????¨??

b.??AD7416°????÷??×÷???é???·°????÷°????????¨??

c.??TLC7528????????×÷???é???·°????÷°????¨??

d.??THS8133????????×÷???é???·°????÷°????¨??

"e.??tlc7528?????¨??????0.5°??????÷??????????,TLC556??????×÷???é???·°??¨???÷°?4??16???????÷·?±???"

"?¨??×???°??????÷??×??????é???·°?????,?????é???·°????????ó??30??80???×?????????à?é???è???????????é"

"???·°???????????AD7730BRU,????AD7416????????×ù?????ù??,????????ר?????ù????×ù?¨??????????????????"

????ר?????ù????×ù????????×???°?a?ó???÷°????¨?¨×???°???????????????ר?????ù????×ù???÷????????????

"????????,?è???ú??I/o???????±??????"

f.??AD7730??????×÷1?é???·°????÷°????¨??

"?????????????????????í????·?·????÷???????????ò,???????ü???????÷??????,???????????ü????(???í??"

"????????0Hz??10KHz,100KHz)??"


16???????÷??????????4????????×÷???·°?14?é??×???°?a???é???¨????A3972???¨????×???°?a???÷°????¨????

2.??×???????
"  32??,??·??????·??"

3.??×???????
"  32??,????????????"

4.??×????è????

  16??????/?¨?±?÷6??(?????????????÷·?±?????×?7556??500Hz??5MHz?????????????????????????????????¨

?±??????????20ms?????????????ò?????ú×?????????????????????????7528????????????)??

 
"   ????3.4.5.??????????×÷???·°?1?é????????·????÷????°?????,?÷????°??¨?é????CY7C68013?ò????PHILIPS  "
"ISP1581,Cygnal C8051F120??PCA??????????,?????????¨??PC??????"


5.???????ú???????·

"a,MCX314AS????????????×÷???·°?1?é???÷°????¨??"

"b,A3972???????÷??×÷???é???·°?????×???°?a?ó???÷°????¨??"

"c,A3977?????÷??×÷???é???·°????÷°????¨??"

"????b,c,???é???·°?°????¨??????×÷?????????????·????????????????±???????????ר???????????è????????????S"

?ú??·?????/??????????????

?¨?é????PCA????5??16-bit???à·???????????SPWM????????????????MCX314???????????????????????è

???·2.2.3  S?ú??·?????/??????????5.1.2  S?ú????????±??????è?¨?????????ú?????????????????·2002?ê??

"8??,?ù??TMS320F240???à??PWM????,2002?ê??10??,??89C51??8254-2??????????PWM???????à??????SA4828????"

"??????????????????×??è±?????PWM?°SPWM???????????·?????????·,???????ú???????ú?????·7??4  SPWM?¨·?"

"?ú?÷SA4828????,3??5 ?????ú????????PWM????????C8051????????,??C8051F?????ú?????????·,AN007--??PCA"

????16??PWM??



         

6.?í????·????è???°??·????????????ó


"?í????·?°ü?¨?????ú??????????USB2.0??????????????????????,?????????è??×??ì??????,????????±¨?????±"

??????°??ú?????????ò??(Windows XP Professional)?????????ò??

a.?????ú???????????????????÷?°????N??·?????

?÷?°??????????????????????????°?±??????????????ê????°??ú×?????

?÷·???·?±????÷I/O???á???ì???????????è?????????????ê????°??ú??????

b.?????????ú?¨??USB2.0???????????ò???????????????????????????????????????è????×??ì?????ò?????è±?

???±?¨??(?¨?????é???è???????×·????¨?ó???è?????·?¨???????????è????×??ì????????


7.???????????è????

???è???±????·??????????á?????????í???????????????÷???????í?·?¨??±ê??????????????±????????¤??????

???§????????±ê×??????????????????????????????í???á??????????????×°???¤???§??????????????????·??·

???????????¤???????????¨???í?????¨??RTOS????<?????????±??×÷????Small RTOS51???í?°????>?°?á??????

?????????è?????í?????????????????????ú×??????è??±ê×??????????ó??


????:???????è????????×?????????????
   ????
1.???·???????????????à??????

?????????·???????????¤×÷????????1MHz???ü?????????÷???????????°?ì???????????????·???????·?÷??????

?°?ì???ó???ò???????????????????±?????¤×÷?????ó??10MHz?±??????×è??±??????ó?????±??????????????×è??

???????????ü?à?????????±?¤×÷??????1??10MHz?±???????????????????????????¤???????????¨?¤??1/20??·?

?ò???????à??????·¨??
   ????
2.????×????·?????????··???
   ????
???·°??????????????????·?????????????·???????ü??????·??????????????????????à?ì??·?±?????

?????????à?????????????ó???????·????????????
       ????
3.??????????????
   ????
???????????????????????ò?????÷??±?????±???????????×??è±????¨?±???????????????????ù????±?

?????ò?????????????????????????ü???¨????±??????????·°??????í???÷?????????????????????í?????ó??3mm??
    ????
4.????????????±??·?·

    ?è????????×????·×é???????????·°????????????±??????????×???±??·?·?????÷?????á???????ù????????

???ò?????????????·°????????à???????·???????????????????à???????±???ò?????????????????????á??

???????ú?ú???ó???????????????????ù?????????????????????????·?·???ò?á???????????????á????×??è±???

?????ù??????


?????????????????÷???á?????????ó???è?????????ù??ר??????±ê×????ó????????????·????¨?ó???¨?ê??????

·?°???×÷?????é??????2??USB2.0???????????????????è???è??????·?°??????????÷???????·??×÷??·??????ê??

??????×÷?????é??????3??USB2.0???????????????????è????·??÷????????·?????????

  ????7???????è????????????????????????×÷???????????????????§???????????????ú×????è?¨???????ù??

???????????????ú???????????????????????·????
????


         ????

      ??
??

?í??.????±?

          ???°??03742654344

                                   2004.02.11.

[???ù±?zona??2004-02-11 21:43????±à??][/post]
[???ù±?zona??2004-02-18 23:10????±à??]

顶部
hnxczjb
新手上路
Rank: 1



UID 11
精华 0
积分 2
帖子 2
阅读权限 10
注册 2004-2-11
状态 离线
发表于 2004-2-11 21:25  资料  个人空间  短消息  加为好友 
[post]  ?ú????

?ú????????·????????ù??????????×÷?×????


  1.???ú?ü???????ê??????????·??????ó???á???????????§????????°???USB2.0???????????????????á???°??·????????????ó?·??????????????????×÷??USB2.0???????????????????è???è??????·?°??????????????????????????????¤?±??????×÷?????÷???ê??????????·???????×÷???????×????

2.??·?°???????????????×÷??USB2.0???????????????????è????·????÷????????·?????????

3.??????·?°???????·??????????????è????·????é??


?è????·????é??????


         USB2.0???????????????????á???°??·????????????ó

??????·????á???°??·????????????ó:

1?????????????????á??

a.??TLC2543??????MAX1270CA?????÷??×÷???é???·°????÷°????¨??

b.??AD7416°????÷??×÷???é???·°????÷°????????¨??

c.??TLC7528????????×÷???é???·°????÷°????¨??

d.??THS8133????????×÷???é???·°????÷°????¨??

"e.??tlc7528?????¨??????0.5°??????÷??????????,TLC556??????×÷???é???·°??¨???÷°?4??16???????÷·?±???"

"?¨??×???°??????÷??×??????é???·°?????,?????é???·°????????ó??30??80???×?????????à?é???è???????????é"

"???·°???????????AD7730BRU,????AD7416????????×ù?????ù??,????????ר?????ù????×ù?¨??????????????????"

????ר?????ù????×ù????????×???°?a?ó???÷°????¨?¨×???°???????????????ר?????ù????×ù???÷????????????

"????????,?è???ú??I/o???????±??????"

f.??AD7730??????×÷1?é???·°????÷°????¨??

"?????????????????????í????·?·????÷???????????ò,???????ü???????÷??????,???????????ü????(???í??"

"????????0Hz??10KHz,100KHz)??"


16???????÷??????????4????????×÷???·°?14?é??×???°?a???é???¨????A3972???¨????×???°?a???÷°????¨????

2.??×???????
"  32??,??·??????·??"

3.??×???????
"  32??,????????????"

4.??×????è????

  16??????/?¨?±?÷6??(?????????????÷·?±?????×?7556??500Hz??5MHz?????????????????????????????????¨

?±??????????20ms?????????????ò?????ú×?????????????????????????7528????????????)??

 
"   ????3.4.5.??????????×÷???·°?1?é????????·????÷????°?????,?÷????°??¨?é????CY7C68013?ò????PHILIPS  "
"ISP1581,Cygnal C8051F120??PCA??????????,?????????¨??PC??????"


5.???????ú???????·

"a,MCX314AS????????????×÷???·°?1?é???÷°????¨??"

"b,A3972???????÷??×÷???é???·°?????×???°?a?ó???÷°????¨??"

"c,A3977?????÷??×÷???é???·°????÷°????¨??"

"????b,c,???é???·°?°????¨??????×÷?????????????·????????????????±???????????ר???????????è????????????S"

?ú??·?????/??????????????

?¨?é????PCA????5??16-bit???à·???????????SPWM????????????????MCX314???????????????????????è

???·2.2.3  S?ú??·?????/??????????5.1.2  S?ú????????±??????è?¨?????????ú?????????????????·2002?ê??

"8??,?ù??TMS320F240???à??PWM????,2002?ê??10??,??89C51??8254-2??????????PWM???????à??????SA4828????"

"??????????????????×??è±?????PWM?°SPWM???????????·?????????·,???????ú???????ú?????·7??4  SPWM?¨·?"

"?ú?÷SA4828????,3??5 ?????ú????????PWM????????C8051????????,??C8051F?????ú?????????·,AN007--??PCA"

????16??PWM??



         

6.?í????·????è???°??·????????????ó


"?í????·?°ü?¨?????ú??????????USB2.0??????????????????????,?????????è??×??ì??????,????????±¨?????±"

??????°??ú?????????ò??(Windows XP Professional)?????????ò??

a.?????ú???????????????????÷?°????N??·?????

?÷?°??????????????????????????°?±??????????????ê????°??ú×?????

?÷·???·?±????÷I/O???á???ì???????????è?????????????ê????°??ú??????

b.?????????ú?¨??USB2.0???????????ò???????????????????????????????????????è????×??ì?????ò?????è±?

???±?¨??(?¨?????é???è???????×·????¨?ó???è?????·?¨???????????è????×??ì????????


7.???????????è????

???è???±????·??????????á?????????í???????????????÷???????í?·?¨??±ê??????????????±????????¤??????

???§????????±ê×??????????????????????????????í???á??????????????×°???¤???§??????????????????·??·

???????????¤???????????¨???í?????¨??RTOS????<?????????±??×÷????Small RTOS51???í?°????>?°?á??????

?????????è?????í?????????????????????ú×??????è??±ê×??????????ó??


????:???????è????????×?????????????
   ????
1.???·???????????????à??????

?????????·???????????¤×÷????????1MHz???ü?????????÷???????????°?ì???????????????·???????·?÷??????

?°?ì???ó???ò???????????????????±?????¤×÷?????ó??10MHz?±??????×è??±??????ó?????±??????????????×è??

???????????ü?à?????????±?¤×÷??????1??10MHz?±???????????????????????????¤???????????¨?¤??1/20??·?

?ò???????à??????·¨??
   ????
2.????×????·?????????··???
   ????
???·°??????????????????·?????????????·???????ü??????·??????????????????????à?ì??·?±?????

?????????à?????????????ó???????·????????????
       ????
3.??????????????
   ????
???????????????????????ò?????÷??±?????±???????????×??è±????¨?±???????????????????ù????±?

?????ò?????????????????????????ü???¨????±??????????·°??????í???÷?????????????????????í?????ó??3mm??
    ????
4.????????????±??·?·

    ?è????????×????·×é???????????·°????????????±??????????×???±??·?·?????÷?????á???????ù????????

???ò?????????????·°????????à???????·???????????????????à???????±???ò?????????????????????á??

???????ú?ú???ó???????????????????ù?????????????????????????·?·???ò?á???????????????á????×??è±???

?????ù??????


?????????????????÷???á?????????ó???è?????????ù??ר??????±ê×????ó????????????·????¨?ó???¨?ê??????

·?°???×÷?????é??????2??USB2.0???????????????????è???è??????·?°??????????÷???????·??×÷??·??????ê??

??????×÷?????é??????3??USB2.0???????????????????è????·??÷????????·?????????

  ????7???????è????????????????????????×÷???????????????????§???????????????ú×????è?¨???????ù??

???????????????ú???????????????????????·????
????


         ????

      ??
??

?í??.????±?

          ???°??03742654344

                                   2004.02.11.

[???ù±?zona??2004-02-11 21:43????±à??][/post]

顶部
zona
超级版主
Rank: 8Rank: 8


UID 3
精华 0
积分 503
帖子 532
阅读权限 101
注册 2003-12-16
状态 离线
发表于 2004-2-11 21:47  资料  个人空间  短消息  加为好友 
?????????????á???ì?????????????????ú??????





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UID 10
精华 6
积分 240
帖子 260
阅读权限 10
注册 2004-2-7
状态 离线
发表于 2004-2-12 12:45  资料  个人空间  短消息  加为好友 
????

??????





??
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silverstar
版主
Rank: 7Rank: 7Rank: 7


UID 16
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积分 319
帖子 328
阅读权限 100
注册 2004-2-16
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发表于 2004-2-16 10:47  资料  个人空间  短消息  加为好友  QQ
???????ü?à?é??





[IMG]http://www.3wbbs.com/dvbbs/UploadFile/200310297404494178.gif[/IMG]
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????
项目组成员



UID 23
精华 2
积分 303
帖子 322
阅读权限 10
注册 2004-2-17
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发表于 2004-2-17 17:22  资料  个人空间  短消息  加为好友 
[post]  ???????????????????????????§???????????è??????·??????????÷???ó??????????[/post]





??????
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UID 10
精华 6
积分 240
帖子 260
阅读权限 10
注册 2004-2-7
状态 离线
发表于 2004-2-18 15:07  资料  个人空间  短消息  加为好友 
[post]
以下内容积分高于 0 才可浏览
==============================

???????????±????°?????
·?°?±??í??????????????????????CPU,×??????????ú???????·????14?é°?×???????2~3??×??????è?????í?????????á???? 1~2???¨????????????????????????????

==============================
[/post]





??
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UID 10
精华 6
积分 240
帖子 260
阅读权限 10
注册 2004-2-7
状态 离线
发表于 2004-2-18 15:11  资料  个人空间  短消息  加为好友 
[post]
**** 本内容积分高于 50 才可浏览 ****
[/post]





??
顶部
zona
超级版主
Rank: 8Rank: 8


UID 3
精华 0
积分 503
帖子 532
阅读权限 101
注册 2003-12-16
状态 离线
发表于 2004-2-18 23:11  资料  个人空间  短消息  加为好友 
???÷??????????-?????è????-???à?????±??????????????,????





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