Benutzeranleitung / Produktwartung TMS320DM6446 DVEVM v2.0 des Produzenten Texas Instruments
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TMS320DM6446 DVEVM v2.0 Getting S tarted Guide Literature Number: S PRUE66E December 2008.
IMPORT ANT NOTICE T exas Inst ruments Incorp orated and it s subsidiaries (TI) reserve the right to make corre ctions, modific ations, enhanc ements , improv ements , and othe r chang es to it s product s and services a t any time and to discontinue any produ ct or servi ce without not ice.
EV ALUA TION BOARD/KIT IMPORT ANT NOTICE T exas Ins trument s (TI) provid es the en closed produ ct(s) unde r the following conditions: This eva l uatio n board/kit is intende d for use for ENGINEERIN.
FCC W arning This eva l uatio n board/kit is intende d for use for ENGINEERING DEVELOPMENT , DEM ON- STRA TION, OR EV ALUA TION PURPOSES ONL Y and is not consid ered by TI to be a finis hed end- product fit for gen eral consumer use.
v This is a draft version printed from file: pref.fm on 12/18/08 Preface About This Guide The DVEV M (Digital Video Evaluation Mo dule) kit is an eva luation platform that show case s the DM64 4x archit ecture a nd lets use rs evaluate the power and perform ance of the DM644x as a mult imedia engin e.
vi Not ational Conv entions Notational Con ventions This doc ument uses th e followi ng conventi ons: ❏ Progra m listings, pr ogram e xamples, an d interac tive displ ays are shown in a mono-spaced font .
vii This is a draft version printed fro m file: davinci_gsgTOC.fm on 12/18/08 Content s 1 DVEV M Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 This cha pter intr oduces the DVEVM ( Digital V ideo Eva luation Modu le) kit .
Conten ts viii 4.3.5 Exporting a S hared File Syste m for Target A ccess . . . . . . . . . . . . . . . . . . . 4-9 4.3.6 Testing th e Shared Fil e System . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-11 4.3.7 Configuring the Boot S etup for PA L Video Users .
1-1 Chap ter 1 DVEVM Overview This chapte r introduc es the DVEVM (Di gital Video Evaluation Module) kit. 1.1 Welcome! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 – 2 1.2 What’s in thi s Kit? . .
Wel c om e ! 1-2 1.1 Wel come! Y our new DVEVM ( Digital Video Evalua tion Module) kit will allow you to evalu ate TI’s new DaVinci TM T echnol ogy and the DM644x archite cture. This techno logy br ings to gether sy stem-so lutio n compo nents tailored fo r efficient an d compe llin g digital vid eo and aud io.
What’ s in this Kit? DVEVM Overview 1-3 1.2 What’s in this Kit? Y our DVEVM kit c ontains the following hardware item s. Secti on 2.1, Setting Up the Hardware tells how to connect these com ponents.
What’ s on the Boar d? 1-4 1.3 What’s on the Board? The EV M comes loaded wi th peripher als your multime dia appl ications may need to make u se of. T he hard d rive on th e boar d also comes pr e- loaded wi th demons tration s oftware. Th e followi ng bloc k diagram shows the major hardware com ponents.
What’ s Next? DVEVM Overview 1-5 1.4 What’s Ne xt? T o get started ev al uating t he DVEVM k it a nd d ev elo pin g ap pli cati ons for the DM644 x, begin by using this Get ting S tarted gui de. It wi ll ste p you through connecti ng the ha rdware, testing th e software, and be ginning t o develop applica tions.
1-6.
2-1 Chap ter 2 EVM Hardware Setup This cha pter tells y ou how to s et up the E VM hard ware. 2.1 Setting Up the Hardware . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 – 2 2.2 Connectin g to a Console Window . . . . . . . .
Setting Up the Hardware 2-2 2.1 S et ti n g U p the Har dw are T o set up th e hardware pr ovided w ith the EVM, us e the steps in th e sect ions th at foll ow . Y ou may s kip sec tions if you do not ne ed to access a particular p er ipher al . Fo r examp le, i f y ou do no t n eed to us e the s erial cable, s kip that section.
Setting Up the Hardware EVM Hardware Setu p 2-3 4) Con nect the red and white audio cable s to the EVM Audio O utput and the LCD display R/L Audio Input jacks as shown be low: 5) Con nect the BNC-to- RCA connector to the coax cable. Then connect the coax cable to the video camera and the EV M Video Input.
Setting Up the Hardware 2-4 7) Con nect the mic rophone t o the EVM. 8) Con nect the power ca ble to the EVM powe r jack on the boa rd. T o be ESD safe , do not plu g in the ot her end of the cable yet. 9) If you will us e the Etherne t connec tion, connec t the Ether net cable t o the Ether net Port on the EVM and to an E thernet netwo rk port.
Setting Up the Hardware EVM Hardware Setu p 2-5 10) If you pla n to use th e UART port for a co nsole windo w , c onnect the RS-232 n ull modem cable to t he EVM UART port and a COM por t on your host Linux wor kst ation. See Se ction 2.2 , Con necting to a Console Wi ndow for m ore abou t using a console window .
Conne cting to a Cons ole Wi ndow 2-6 2.2 Connecting to a Console Window Y ou c an open a console window that allow s you to watch and interrup t EVM boot message s by foll owing thes e steps: 1) Con nect a serial cable betwee n the serial port on the EV M and the serial po rt (for ex ample, COM1) on a PC.
3-1 Chap ter 3 Running the Demonstration Software This chapte r ex plains how to ru n the software de mos provide d with the DVEVM k it. 3.1 Default Boo t Configuration . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 – 2 3.2 Starting the Stan dalone Demos .
Defaul t Boot Co nfiguration 3-2 3.1 Default Boot Configuration Out of the box, the E VM boots from f lash and starts the demos automa tically af ter a few seconds when you power u p the board. It does not require an NFS mount or a TFTP server to run the standard demos.
S tarting t he S tandalon e Demos Runnin g the Demons tration Softw are 3- 3 running . Ot he rwis e y ou wil l see er r or me ss ag es rais ed whe n d evice drivers fail to op en. Once the EV M board has boot ed, the disp la y should show a picture o f the re mote cont rol.
Runni ng the S tandalon e Demos 3-4 3.3 Running the Standalone Demos 1) Press "Play" or " OK" on the remo te to mov e from the rem ote control diagram to the mai n menu sc reen, which looks l ike this: The Encod e + Decod e demo all ows you to r ecord and p layback video.
Runni ng the S tandalon e Demos Runnin g the Demons tration Softw are 3- 5 5) Use the le ft and right arr ows to cycle th rough the options until the setting y ou want is shown. 6) Pres s "Pla y" to begi n the Enco de+Decod e and Decod e demos.
Runni ng the S tandalon e Demos 3-6 3.3.2 About the E ncode + Decode Demo The Encode + Dec ode demo al lows you to record an d playback video. Video comes from the ca mera, is enco ded, the n decoded , and then sent to the L DC displa y. The Enc ode + Dec ode does on ly vide o processi ng; it does not encod e and decod e audio or speech .
Runni ng the S tandalon e Demos Runnin g the Demons tration Softw are 3- 7 3.3.3 About the E ncode Demo Like the Encode + Deco de dem o, the En code dem o also e ncode s video . In addit ion, it also encodes s peech. The spe ech sour ce is the microp hone.
Runni ng the S tandalon e Demos 3-8 The appli cation runs on the ARM using Linux. The vide o and audio signals are passed to e ncoders on the DSP b y the Codec Engine. S hared memory is used whe n passing data. T o use th is demo from the comman d line, see S ection 3.
Runn ing th e Dem os fro m th e C omman d Li ne Runnin g the Demons tration Softw are 3- 9 The su pported vid eo algor ithms are M PEG4 (.mp eg4 file extensio n), H.264 (.26 4 file ex tension) an d MPEG2 ( .m2v fil e extension). The su pported a udio algor ithm is AA C (.
Runni ng the Demos from the Comma nd Line 3-10 3) Mo ve to the ap propriate directo ry on the target using the followin g comm and. (See Se ction 4.1.1 for the meanin gs of com mand pro mpts shown in this docume nt.
Runnin g the Ne twork Dem o Runnin g the Demons tration Softw are 3-1 1 3.5 Running the Network Demo As an ex ample of standa rd TCP/IP n etworking s upport, the DVEVM example s include a small HTTP web ser ver . This web s erver is started on the GPP-si de as part of the Linux startup sequenc e.
3-12.
4-1 Chap ter 4 DVEVM Software Setup This cha pter explains how to use t he software pr ovided with the DVEV M kit. 4.1 Software Overvi ew . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 – 2 4.2 Preparing to Ins tall .
Software Overvie w 4-2 4.1 Softw are O verview T o begin deve loping a pplications , you need to install the DVE VM develop ment envi ronment. Th is chapt er outline s the st eps required t o load the DVE VM so ftware onto the de velop ment hos t. Y ou will ne ed the distributi on disk s or the fil es they contain to get started.
Sof t ware Ov ervie w DVEVM Software Setu p 4-3 T exas In struments, in agreement with Mo ntaVist a Softwar e Inc., is provid ing a dem ons trati on versio n of th e Li nux Prof es si ona l E dit ion v5.0 embedded operatin g system a nd developm ent tools .
Software Overvie w 4-4 4.1.2 Software Component s The foll owing figure s hows the s oftware co mponents used for applica tion develop ment with th e DVEVM kit : In the pr evious fi gure, you r appli cation r uns on the ARM subsyste m. It handles I/O and app licatio n process ing.
Prepar i ng t o Insta ll DVEVM Software Setu p 4-5 4.2 Preparing to Install On a host syst em, mount the DVEVM demonstra tion DVD an d copy the followin g files to a tempor ary locati on wit h at least 2.3 GB ava ilable space. Sinc e you ca n delete th e installati on files after installin g the software , a direct ory like /tmp is rec ommended .
Inst alling the Sof tware 4-6 4.3.1 Install ing the Target Linux Software This sec tion expl ains how to ins tall Linux for us e on the target boa rd. This is a dem onstration v ersio n of MontaVista Linux Pr o v5.0. Note that separate version s of Linux ar e used by the targe t and your host Linux works tation.
Insta lli ng the Softw a re DVEVM Software Setu p 4-7 4.3.2 Install ing the DVSDK Software The DVSD K softwar e include s Codec En gine comp onents, DSP /BIOS Link, sa mple data file s, xDAIS and xDM heade r files, and a cont iguous memory allocator for Linux (CME M).
Inst alling the Sof tware 4-8 When the i nstaller prom pts for an ins tallation locati on, do not us e the default locati on. Instead, us e the entire path to the dvsdk _#_# codeg en directo ry . Y ou w ill need to manua lly cr eate the folder cg6x_6_ #_#, wher e # repres ents part of the v ersion num ber .
Insta lli ng the Softw a re DVEVM Software Setu p 4-9 4.3.4 Install ing the SoC Analyzer SoC An alyzer is a graphic al tool tha t runs on a Windows de velop ment host and uses data collect ed from Lin.
Inst alling the Sof tware 4-10 4) Pe rform the fol lowing co mmands to create a c opy of the target file system with perm issions set fo r writing to the shared a rea as <use racc t> . Subs titute yo ur user na me for <u sera cct> . If you installed in a loc ation other than /opt/ mv_pro_5.
Insta lli ng the Softw a re DVEVM Software Setu p 4-1 1 4.3.6 Testing t he Shared Fil e System T o test you r NFS setup, fo llow thes e steps: 1) G et the IP add ress o f your hos t Linux work stations as fo llows. L ook for the IP address a ssociated with the eth 0 Etherne t port.
Inst alling the Sof tware 4-12 See Se ction A. 4, Alternate B oot Methods for inform ation abou t booting with TFTP or NFS and using flash or the EVM’ s hard drive. 4.3.7 Configuring the Boot Setup for PAL Video Users Y ou ca n configur e the EVM to sele ct either the NTSC or P AL vide o standard du ring the d efau lt boot s equ enc e.
Sett ing U p the B uild /Dev elo pm ent Envir onm ent DVEVM Software Setu p 4-13 These codecs ar e prov ided un der a " for demo nstration- only" license agreemen t. If you w ish to use t hese cod ecs in a pr oductio n develop ment environme nt, you c an go to the DVEV M Updates web site a t http://www .
Building a New Linux Ker nel 4-14 4) host $ arm_v5t_le-gcc hello.c -o hello Perfor m the f ollowing steps on the targe t boar d. Y ou may use either th e target's con sole window ( Section 2.2 ) or a t elnet sessi on. 1) target $ cd /opt/hello 2) Run .
Bui lding a New Linux Kern el DVEVM Software Setu p 4-15 5) T o modi fy the kernel options, yo u will need to use a c onfigura tion comm and suc h a s " mak e m enu co nfi g" o r " ma ke xconf ig" .
Rebuildi ng the DVEVM Software fo r the T arget 4-16 4.6 Re building the DV EV M Software for the Target T o place demo files in the /o pt/dvsdk /dm6446 dir ectory , you need to rebuild the DVSDK s oftware. T o do this, follo w these st eps: 1) If y ou have not al ready done so , rebuild th e Linux kern el as descr ibed in Se ction 4.
Boo ting t he Ne w Lin ux Ker n el DVEVM Software Setu p 4-17 5) Y ou can test the r ebuilt DVE VM softwa re by booting your NF S file system and running the demos from the command li ne as descr ibed in Se ction 3.
T est ing th e Buil d Env ironm ent 4-18 4.8 Testing the Build Environment T o test your DVSDK so ftware installa tion, you can b uild one of the Codec Engin e servers. This se rver is a D SP-side a pplicati on. Building it tes ts the installatio n of DS P-side dev elopment componen ts.
Using th e Digital V ideo T est Bench (DVTB) DVEVM Software Setu p 4-19 3) Cop y th e binar ie s " dv tb-d" and "d vtb -r" to /op t/dv s dk /dm 6 446 on th e device ’s t ar get filesyste m and run it there. It must be in the same directo ry as the DS P exec utables.
Runni ng The SoC Analyzer 4-20 4.10 Running The SoC Analyzer Built up on T exas Instru ments' eXpress DSP data vis ualizat ion tech nology (DVT), the S oC Analyz er simplifies debugging, analysi s, and optimiza tion of DVEVM applica tions.
Doc umen tat ion f or DSP -Si de Dev elopm ent DVEVM Software Setu p 4-21 T o run the S oC Analy zer , double- click the S oC Analyz er icon on th e Windows Desktop or select i t from the Windows S t art menu u nder T exas Instru ments.
Documen tation for D SP-Side Developmen t 4-22 Sec tion 4 .9, Usi ng th e Dig i- tal Video T est Be nch (DVTB) this do cument Codec Engin e Codec En gine Appli cation Develop er User's Guid e (SP.
A-1 Appendix A Additional Procedures This a ppendix describes o ptional p rocedur es you may use dependin g on your s etup and s pecific needs. A.1 Changing the Video Input/Output Methods. . . . . . . . . . . . . . . . . . . . A – 2 A.2 Putting Demo App lications in the T hird-Party Menu .
Changing the Video Input/Output Me thods A-2 A.1 Changing the Video Input/Output Methods The EV M can inp ut video usi ng the fol lowing met hods: ❏ Composit e [defau lt] ❏ S-Video (bes t quality .
Changin g the Vide o Input/O utput Methods Addi tion al Pr ocedu res A-3 A.1.2 Using S-Video Output T o switch t o higher -quality S -Video output , follow the se steps: 1) Unp lug th e com posite vi deo c onn ec tor .
Changing the Video Input/Output Me thods A-4 A.1.3 Using Component Vi deo Output T o switc h to high est-quality compone nt video output, foll ow these ste ps: 1) Con nect your c omponent vide o connec tors to the con nectors in a square on the far left of the board.
Putting Demo Appli ca tio ns in the Thi r d-Part y Men u Addi tion al Pr ocedu res A-5 A.2 Putting Demo Applications in the Third-Party Menu Y ou can add your o wn demos to the Third-Pa rty Menu by followin g the steps in this sec tion. Only fou r demos can be shown at once i n the user- interfac e.
Putting D emo Appl ications in th e Third-Party Me nu A-6 uses relati ve refer ences to ac cess the m. For examp le, the fol lowin g directo ry struc ture mig ht be used in the ar chive: |-- app.sh |-- data | |-- datafile1 | `-- datafile2 |-- logo.jpg `-- readme.
Setting Up a TFTP Server Addi tion al Pr ocedu res A-7 A.3 Setting Up a TFTP Server Y ou can check to see if a TFTP server i s set up with the foll owing comm and: host $ rpm -q tftp-server If it is n ot set up, you can foll ow these s teps: 1) If yo u have not ye t installed MontaVista Linux Dem o Edition (se e Section 4.
Alternate Boot Metho ds A-8 A.4 Alternate Boot Methods The defa ult conf iguration fo r the E VM is t o boot fr om flash wi th the fil e system on the EV M’s hard drive. The fol lowing are a lternate ways yo u may want t o boot th e board: ❏ TFTP b oot with hard drive file system (Section A .
Alternate Bo ot Methods Addi tion al Pr ocedu res A-9 T o boot in this mode, s et the follo wing parameters after y ou abort the automa tic boot seq uence: EVM # setenv bootcmd bootm 0x2050000 setenv .
Alternate Boot Metho ds A-10 A.4.3 Booting fr om Flash Using NFS File System T o boot in this mode, s et the follo wing parameters after y ou abort the automa tic boot seq uence: EVM # setenv bootcmd .
Rebuild ing DSP/BIOS L ink Addi tion al Pr ocedu res A-1 1 The < root di rector y to mount > m ust match the file syst em that yo u set up on your workstation . For exam ple, /home /< user acct > /wo rkdi r/fil esys . When you boot, look for the following lines that c onfirm t he boot mod e: TFTP from server 192.
Rest orin g and U pdatin g the E VM Ha rd Dis k Dri ve A-12 A.6 Restoring and Updating the EVM Hard Disk Driv e This sect ion describ es how to r estore and update all the files on the EVM hard dis k drive (H DD), incl uding the Linux file system and the dem os.
Restori ng and U pdating t he EVM Ha rd Disk Driv e Addi tion al Pr ocedu res A-13 For exam ple, y ou ca n create a ter minal s ession with Hy perT er minal or T eraT er m on MS W indows, and M inicom or C-Kermit o n Linux. 6) S tart an NFS server o n the hos t workstatio n.
Rest orin g and U pdatin g the E VM Ha rd Dis k Dri ve A-14 A.6.3 Restore the EVM Hard Disk Drive The EVM hard dis k drive (HDD) ca n be restored from a t arget EVM HDD partition or fro m the host Li nux workstation file system. Either met hod will achiev e the same result.
Restori ng and U pdating t he EVM Ha rd Disk Driv e Addi tion al Pr ocedu res A-15 7) The s cript will ask for confirma tion: "Th is will destr oy all data on /dev/hda1 - are you sure?" T y pe yes .
Rest orin g and U pdatin g the E VM Ha rd Dis k Dri ve A-16 3) Go to the /rest ore direc tory . EVM # cd /restore 4) Se t the Linux date v ariable to today's date. If the date i s too far off, the target fil e system installation ge nerates warnings for each file it install s.
Index--1 This is a draft version printed fro m file: davinci_gsgIX.fm on 12/18/08 Index A A/V files 4 -8 AAC audio 3- 9 applica tion 4-4 ARM9 1-3 arr ow but t ons 3-4 audio c ables 2-3 B battery 1- 4,.
Index--2 Index BIOS_INS TALL_DIR 4 -16 FC_I NSTA LL_D IR 4-16 XDC_INSTALL_DIR 4- 1 6 ESD pr eca u tions 2-3 Ethe rnet 2- 4 setup 2-5 EVM # prom pt 2-6, 4-3 exampl es 3-2 exit de mo 3-5 expor ts fi le .
Index--3 Index prompts 4-3 Q quit demo 3-5 R rebuildi ng DVEVM software 4-16 Linux k ernel 4-14 Record bu tton 3-5 Red Hat Enterprise Linux 4-6 remote con trol 1-3, 3-3 resettin g code 3-3 rest ore H DD A-12 Rules.
Index--4.
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Spectrum Digital, Inc. 5081 68-000 1C.
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