sh3.txt

epson usb2.0 控制芯片 S1R72V05 固件程序。

            亖 TOPPERS/JSP僇乕僱儖 儐乕僓僘儅僯儏傾儖 亖
                 乮SH3/SH4 僞乕僎僢僩埶懚晹乯

          乮Release 1.4.2懳墳丆嵟廔峏怴: 11-Jul-2005乯

------------------------------------------------------------------------ 
 TOPPERS/JSP Kernel
     Toyohashi Open Platform for Embedded Real-Time Systems/
     Just Standard Profile Kernel

 Copyright (C) 2000-2003 by Embedded and Real-Time Systems Laboratory
                             Toyohashi Univ. of Technology, JAPAN

 忋婰挊嶌尃幰偼丆埲壓偺 (1)乣(4) 偺忦審偐丆Free Software Foundation 
 偵傛偭偰岞昞偝傟偰偄傞 GNU General Public License 偺 Version 2 偵婰
 弎偝傟偰偄傞忦審傪枮偨偡応崌偵尷傝丆杮僜僼僩僂僃傾乮杮僜僼僩僂僃傾
 傪夵曄偟偨傕偺傪娷傓丏埲壓摨偠乯傪巊梡丒暋惢丒夵曄丒嵞攝晍乮埲壓丆
 棙梡偲屇傇乯偡傞偙偲傪柍彏偱嫋戻偡傞丏
 (1) 杮僜僼僩僂僃傾傪僜乕僗僐乕僪偺宍偱棙梡偡傞応崌偵偼丆忋婰偺挊嶌
     尃昞帵丆偙偺棙梡忦審偍傛傃壓婰偺柍曐徹婯掕偑丆偦偺傑傑偺宍偱僜乕
     僗僐乕僪拞偵娷傑傟偰偄傞偙偲丏
 (2) 杮僜僼僩僂僃傾傪丆儔僀僽儔儕宍幃側偳丆懠偺僜僼僩僂僃傾奐敪偵巊
     梡偱偒傞宍偱嵞攝晍偡傞応崌偵偼丆嵞攝晍偵敽偆僪僉儏儊儞僩乮棙梡
     幰儅僯儏傾儖側偳乯偵丆忋婰偺挊嶌尃昞帵丆偙偺棙梡忦審偍傛傃壓婰
     偺柍曐徹婯掕傪宖嵹偡傞偙偲丏
 (3) 杮僜僼僩僂僃傾傪丆婡婍偵慻傒崬傓側偳丆懠偺僜僼僩僂僃傾奐敪偵巊
     梡偱偒側偄宍偱嵞攝晍偡傞応崌偵偼丆師偺偄偢傟偐偺忦審傪枮偨偡偙
     偲丏
   (a) 嵞攝晍偵敽偆僪僉儏儊儞僩乮棙梡幰儅僯儏傾儖側偳乯偵丆忋婰偺挊
       嶌尃昞帵丆偙偺棙梡忦審偍傛傃壓婰偺柍曐徹婯掕傪宖嵹偡傞偙偲丏
   (b) 嵞攝晍偺宍懺傪丆暿偵掕傔傞曽朄偵傛偭偰丆TOPPERS僾儘僕僃僋僩偵
       曬崘偡傞偙偲丏
 (4) 杮僜僼僩僂僃傾偺棙梡偵傛傝捈愙揑傑偨偼娫愙揑偵惗偠傞偄偐側傞懝
     奞偐傜傕丆忋婰挊嶌尃幰偍傛傃TOPPERS僾儘僕僃僋僩傪柶愑偡傞偙偲丏

 杮僜僼僩僂僃傾偼丆柍曐徹偱採嫙偝傟偰偄傞傕偺偱偁傞丏忋婰挊嶌尃幰偍
 傛傃TOPPERS僾儘僕僃僋僩偼丆杮僜僼僩僂僃傾偵娭偟偰丆偦偺揔梡壜擻惈傕
 娷傔偰丆偄偐側傞曐徹傕峴傢側偄丏傑偨丆杮僜僼僩僂僃傾偺棙梡偵傛傝捈
 愙揑傑偨偼娫愙揑偵惗偠偨偄偐側傞懝奞偵娭偟偰傕丆偦偺愑擟傪晧傢側偄丏

 @(#) $Id: sh3.txt,v 1.1 2006/04/14 02:46:20 9564907 Exp $
------------------------------------------------------------------------

侾丏SH3/SH4 僞乕僎僢僩埶懚晹偺奣梫


1.1 僞乕僎僢僩僔僗僥儉偲奐敪娐嫬

SH3/SH4 僾儘僙僢僒偺僞乕僎僢僩僔僗僥儉偲偟偰偼丆SH7709A丆SH7729R丆
SH7727丆SH7750傪搵嵹偟偨埲壓偺儃乕僪傪僒億乕僩偟偰偄傞丏側偍丆SH3-DSP 
偺 DSP 婡擻丆SH4 偺 FPU 偼僒億乕僩偟偰偄側偄丏乮僨傿僗僷僢僠帪媦傃妱崬
傒偺擖傝岥偱娭楢偡傞儗僕僗僞傪曐懚偟偰偄側偄乯

丒(姅)擔棫挻LSI僔僗僥儉僘惢偺 MS7709ASE01 儃乕僪 (CPU: SH7709A)
丒(姅)擔棫挻LSI僔僗僥儉僘惢偺 MS7729RSE01 儃乕僪 (CPU: SH7729R)
丒(姅)擔棫挻LSI僔僗僥儉僘惢偺 MS7750SE01  儃乕僪 (CPU: SH7750)
丒(姅)擔棫挻LSI僔僗僥儉僘惢偺 MS7727CP01  儃乕僪 (CPU: SH7727)

側偍丆MS7709ASE01丆MS7729RSE01丆MS7750SE01偼丆僴乕僪僂僃傾峔惉偑帡捠偭
偰偄傞偨傔丆 solution_engine 偲偄偆柤慜偺僔僗僥儉埶懚晹偲偟偰傑偲傔偰
偄傞丏愗傝懼偊偼丆僔僗僥儉埶懚晹偺 Makefile.clonfig 偱巜掕偡傞丏埲壓丆
偙傟傜3庬椶偺儃乕僪傪摿偵嬫暿偟側偄応崌偼丆Solution Engine 偲昞婰偡傞丏

奐敪娐嫬偵偼丆GCC 側偳偺 GNU奐敪娐嫬傪梡偄丆僆僽僕僃僋僩僼傽僀儖僼僅乕
儅僢僩偼 ELF 傪昗弨偲偡傞丏

Solution Engine 偱偼幚峴娐嫬偲偟偰丆GDB僗僞僽傪梡偄傞曽朄偲 JTAG-ICE 
傪梡偄傞曽朄傪僒億乕僩偡傞丏GDB僗僞僽偼 Toppers 僾儘僕僃僋僩偺儂乕儉儁乕
僕偐傜僟僂儞儘乕僪壜擻偱偁傞丏JTAG-ICE偲偟偰偼丆嫗搒儅僀僋儘僐儞僺儏乕
僞惢偺PARTNER-J偱偺摦嶌傪妋擣偟偰偄傞丏GDB僗僞僽傪梡偄傞応崌偵偼丆
Makefile 拞偱丆DBGENV 偵 GDB_STUB 傪愝掕偡傞乮僨僼僅儖僩乯丏PARTNER-J
傪梡偄傞応崌偵偼丆DBGENV偵 PARTNER_J 傪愝掕偡傞丏

MS7727CP01 偱偼丆T-Monitor 傪梡偄傞曽朄偲JTAG-ICE傪梡偄傞曽朄傪僒億乕僩
偡傞丏側偍丆T-Monitor 傪巊偭偰僨僶僢僌偡傞偙偲偼晄壜擻偱偁傝丆扨側傞儘乕
僟乕偲偟偰梡偄傞丏嬶懱揑偵偼丆僇乕僱儖傪S儗僐乕僪偵曄姺偟丆T-Monitor
偱僟僂儞儘乕僪偟偰幚峴偡傞丏僇乕僱儖廔椆帪偼丆僾儘僙僢僒傪儕僙僢僩偡傞丏


1.2 僒億乕僩偡傞婡擻偺奣梫

SH3 埶懚偺婡擻偲偟偰丆妱崬傒儅僗僋偺曄峏丒嶲徠(chg_ixx丆get_ixx)偲丆惈
擻昡壙梡僔僗僥儉帪崗嶲徠婡擻(vxget_tim)傪僒億乕僩偟偰偄傞丏妱崬傒偺嬛
巭偲嫋壜(dis_int丆ena_int)偼僒億乕僩偟偰偄側偄丏


1.3 懠偺僞乕僎僢僩傊偺億乕僥傿儞僌

尰僶乕僕儑儞偱偼丆SH7708 傪梡偄偨僔僗僥儉埶懚晹偼懚嵼偟側偄丏偟偐偟側
偑傜丆僾儘僙僢僒埶懚晹偺僐乕僪帺懱偼 SH7708 傪僒億乕僩偡傞丏偦偺偨傔丆
SH7708傪僒億乕僩偡傞僔僗僥儉埶懚晹傪嶌惉偡傞偙偲偼梕堈偱偁傞丏偦偺応崌
偵偼丆僐儞僷僀儖僆僾僔儑儞傕偟偔偼 sys_defs.h 偱 SH7708 傪掕媊偡傟偽傛
偄丏


1.4 僔儕傾儖億乕僩

僇乕僱儖偺儘僌弌椡梡偲偟偰丆Solution Engine 偱偼僗乕僷乕I/O撪憼
SCI(CN3)傪 19200bps 偱巊梡偡傞丏MS7727CP01 偱偼丆CPU儃乕僪忋偺僔儕傾儖
僀儞僞僼僃乕僗僐僱僋僞傪 115200bps 偱巊梡偡傞丏側偍丆慡偰偺億乕僩偵偍
偄偰 僨乕僞: 8bit,Parity:none,Stop:1bit偱偁傞丏


1.5 僄儞僨傿傾儞

奺僞乕僎僢僩偼僨傿僢僾僗僀僢僠偵傛傝僄儞僨傿傾儞傪曄峏偡傞偙偲偑壜擻偱
偁傞丏偙傟偵崌傢偣偰丆僇乕僱儖偺僄儞僨傿傾儞偺愝掕偼奺僔僗僥儉埶懚晹偱
曄峏壜擻偱偁傞丏僄儞僨傿傾儞偼埲壓偺屄強偱愝掕偡傞丏

 丒僔僗僥儉埶懚晹偺 Makefile.config 
    僐儞僷僀儖僆僾僔儑儞 -ml  or -mb
    儕儞僇僆僾僔儑儞     -ml  or -mb
    儕儞僇僗僋儕僾僩     shlelf.ld or shelf.ld

 丒僔僗僥儉掕媊
    SIL_ENDIAN     SIL_ENDIAN_LITTLE or SIL_ENDIAN_BIG


俀丏SH3 僾儘僙僢僒埶懚晹偺婡擻

偙偺愡偱偼丆僇乕僱儖偍傛傃僔僗僥儉僒乕價僗偺婡擻偺拞偱丆SH3埶懚偺晹暘
偵偮偄偰夝愢偡傞丏


2.1 僨乕僞宆

int宆偍傛傃 unsigned int宆偺僒僀僘偼 32價僢僩偱偁傞丏


2.2 妱崬傒娗棟婡擻偲妱崬傒僴儞僪儔

僇乕僱儖娗棟奜偺妱崬傒偲偟偰偼丆 NMI 偑偁傞丏傛偭偰丆CPU儘僢僋忬懺傗弶
婜壔儖乕僠儞撪偱偼丆NMI 埲奜偺妱崬傒偼偡傋偰嬛巭偝傟偰偄傞丏嬶懱揑偵偼丆
IPM(Interrupt Priority Mask)偑 15 偵愝掕偝傟傞丏偟偐偟側偑傜丆儃乕僪忋
偵 NMI 擖椡傪帩偨側偄僞乕僎僢僩偺偨傔丆GDB僗僞僽偑儂僗僩偺儅僔儞偲捠怣
偡傞偨傔偺僔儕傾儖億乕僩偺桪愭搙傪 15 偱搊榐偟丆GDB 偱 Ctrl-C 傪墴偡偲 
妱傝崬傒偑擖傝僗僞僽偵惂屼偑堏傞傛偆偵偟偰偁傞丏偙偺婡擻傪巊梡偡傞偨傔
偵偼CPU儘僢僋忬懺偱偼丆桪愭搙偑 14 偵側傞傛偆偵偟側偗傟偽側傜側偄丏偦
偺偨傔丆CPU儘僢僋偱愝掕偝傟傞桪愭搙傪儅僋儘偱 MAX_IPM 偱巜掕偟偰偄傞丏
MAX_IPM 偼cpu_config.h 偺拞偱掕媊偝傟偰偄傞丏GDB僗僞僽傪巊偆応崌偼 14 
偵GDB僗僞僽傪巊傢側偄応崌偼 15 偵愝掕偟偰偄傞丏

DEF_INH 偱巜掕偡傞妱崬傒僴儞僪儔斣崋(inhno)偼丆SH7708/50 偱偼丆妱傝崬
傒帠徾儗僕僗僞(INTEVT)偵愝掕偝傟傞僐乕僪偱偁傝丆SH7709A/09/29R/27 偱偼丆
妱傝崬傒帠徾儗僕僗僞2(INTEVT2)偵愝掕偝傟傞僐乕僪偱偁傞丏僨乕僞宆
(INHNO)偼 unsigned int宆偵掕媊偝傟偰偄傞丏DEF_INH 偱丆INTEVT,INTEVT2僐乕
僪偲偟偰桳岠偱側偄抣傗丆奜晹妱崬傒偵懳墳偟側偄斣崋傪巜掕偟偨応崌偺摦嶌
偼曐徹偝傟側偄丏

SH3埶懚偺婡擻偲偟偰丆SR(Status Register)拞偺 妱傝崬傒儅僗僋價僢僩(I3乣
I0)偺抣傪曄峏偡傞偨傔偺僒乕價僗僐乕儖 chg_ipm 偲丆嶲徠偡傞偨傔偺僒乕價
僗僐乕儖 get_ipm 傪僒億乕僩偟偰偄傞丏側偍丆妱傝崬傒儅僗僋價僢僩偺抣傪
昞偡僨乕僞宆 IPM 偼丆unsigned int宆偵掕媊偝傟偰偄傞丏

偙傟傜偺僒乕價僗僐乕儖偼丆僞僗僋僐儞僥僉僗僩偱 CPU儘僢僋夝彍忬懺偺応崌
偵偺傒屇傃弌偡偙偲偑偱偒傞丏chg_ipm 偵傛傝 IPM 傪 0 埲奜(偡側傢偪丆壗
傜偐偺妱崬傒偑嬛巭偝傟偰偄傞忬懺)偵偟偨応崌偱傕丆僨傿僗僷僢僠偼嬛巭偝
傟偢丆chg_ipm 偵傛傝曄峏偟偨 IPM 偺抣偼丆僨傿僗僷僢僠屻偺僞僗僋偵堷偒
宲偑傟傞丏椺偊偽丆偁傞僞僗僋偱 IPM 傪 1 偵曄峏偟偨屻丆壗傜偐偺妱崬傒偵
傛傝暿偺僞僗僋偵愗傝懼傢傞偲丆愗傝懼傢偭偨屻偺僞僗僋偱傕 IPM 偼 1 偵側
傞丏

chg_ipm 傪僒億乕僩偡傞偨傔偵丆妱崬傒僴儞僪儔偺弌擖岥張棟側偳偵僆乕僶僿僢
僪傪惗偠偰偄傞丏偦偙偱丆SUPPORT_CHG_IPM 偲偄偆儅僋儘偵傛傝丆偙傟傜偺僒乕
價僗僐乕儖傪僒億乕僩偡傞偐偳偆偐傪愗傝懼偊傜傟傞傛偆偵偟偰偄傞丏
SUPPORT_CHG_IPM 偼丆cpu_config.h 偺拞偱 #define 偝傟偰偄傞丏

SH3埶懚偺妱崬傒儅僗僋偺曄峏丒嶲徠偺偨傔偺僒乕價僗僐乕儖偺巇條偼師偺
捠傝丏


(1) chg_ipm                     妱崬傒儅僗僋偺曄峏

亂C尵岅API亃
        ER ercd = chg_ipm(IPM ipm);

亂僷儔儊乕僞亃
        IPM     ipm             愝掕偡傋偒 IPM 偺抣

亂儕僞乕儞僷儔儊乕僞亃
        ER      ercd            僄儔乕僐乕僪

亂僄儔乕僐乕僪亃
        E_CTX           僐儞僥僉僗僩僄儔乕
        E_PAR           僷儔儊乕僞僄儔乕(ipm 偑晄惓)

亂婡擻亃

IPM(Interrupt Priority Mask)傪 ipm 偱巜掕偝傟偨抣偵愝掕偡傞丏巜掕偟偨
抣偑 0乣13側偄偟14埲奜偺応崌丆E_PAR僄儔乕偲側傞丏IPM 傪 1乣MAX_IPM -1 
偵愝掕偟偨応崌偱傕丆僨傿僗僷僢僠偼嬛巭偝傟側偄丏傑偨丆愝掕偟偨 IPM 偺
抣偼丆僨傿僗僷僢僠屻傕堷偒宲偑傟傞丏

側偍丆偙偺僒乕價僗僐乕儖傪梡偄偰丆IPM 傪 MAX_IPM (偡傋偰偺妱崬傒傪嬛巭)
偵愝掕偡傞偙偲偼偱偒側偄丏IPM 傪 MAX_IPM 偵偟偨偄応崌偵偼丆loc_cpu 傪
巊偆傋偒偱偁傞丏

偙偺僒乕價僗僐乕儖偼丆僞僗僋僐儞僥僉僗僩偱 CPU儘僢僋夝彍忬懺偺帪偺傒屇
傃弌偡偙偲偑偱偒傞丏旕僞僗僋僐儞僥僉僗僩傗 CPU儘僢僋忬懺偱屇傃弌偟偨応
崌偵偼丆E_CTX僄儔乕偲側傞丏


(2) get_ipm                     妱崬傒儅僗僋偺嶲徠

亂C尵岅API亃
        ER ercd = get_ipm(IPM *p_ipm);

亂僷儔儊乕僞亃
        側偟

亂儕僞乕儞僷儔儊乕僞亃
        ER      ercd            僄儔乕僐乕僪
        IPM     ipm             尰嵼偺 IPM 偺抣

亂僄儔乕僐乕僪亃
        E_CTX           僐儞僥僉僗僩僄儔乕

亂婡擻亃

尰嵼偺 IPM(Interrupt Priority Mask)偺抣傪撉傒弌偟丆ipm 偵曉偡丏

偙偺僒乕價僗僐乕儖偼丆僞僗僋僐儞僥僉僗僩偱 CPU儘僢僋夝彍忬懺偺帪偺傒屇
傃弌偡偙偲偑偱偒傞丏旕僞僗僋僐儞僥僉僗僩傗 CPU儘僢僋忬懺偱屇傃弌偟偨応
崌偵偼丆E_CTX僄儔乕偲側傞丏


2.3 CPU椺奜娗棟婡擻偲CPU椺奜僴儞僪儔

DEF_EXC 偱巜掕偡傞妱崬傒僴儞僪儔斣崋(excno)偼丆SH3 偱偺 椺奜帠徾儗僕僗
僞偵愝掕偝傟傞椺奜僐乕僪斣崋傪昞偟丆偦偺僨乕僞宆(EXCNO)偼 unsigned int
宆偵掕媊偝傟偰偄傞丏DEF_EXC 偱丆椺奜僐乕僪斣崋偲偟偰桳岠偱側偄抣傗丆
CPU椺奜偵懳墳偟側偄斣崋傪巜掕偟偨応崌偺摦嶌偼曐徹偝傟側偄丏

CPU椺奜僴儞僪儔偵搉偝傟傞p_excinf偼丆CPU椺奜敪惗帪偺僐儞僥僉僗僩傪曐懚
偟偨僗僞僢僋傊偺億僀儞僞偑搉偝傟傞丏僗僞僢僋偺峔憿傪埲壓偵帵偡丏

offset
          ----------------------
         |         R7           |  <-- p_excinf
          ----------------------
  1      |         R6           |
          ----------------------
  2      |         R5           |
          ----------------------
  3      |         R4           |