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Hi Halle I am not a Matlab user, but I can tell you a little bit about the TI simulator. Basicaly I dont use the simulator that much, but have had to use it from time to time. SIM30 code is generated with the TI C-compiler or assembler and then loaded in COFF format. Data can also be embedded into the executable COFF file, but is usualy loaded point by point via a data file that is connected to a probe point (a breakpoint that is tagged with a different attribute). Another option requiring a little bit of COFF knowledge is to move an entire data set in a COFF file of data only. Similarily output is either in the form of a data or coff file. Note that MatLab can be used for the following making your original question a bit vague. - Create a C source representing your design - Create coefficients and an input data set - Create an input output data stream The last would require a handshake between the two tools. If not one or the other would speed on past and the data would become unsynchronized. I dont think MATLAB or SIM30 has handshaking built in so I imagine this would be a kludge. Example SIM30 stops at probe point and reads a software gate switch (a one or zero) from an IO file. SIM30 advances on switch transistion... NOT LEVEL MATLAB writes data to/from IO file MATLAB changes state of switch allowing SIM30 to continue Repeat... Then again, MatLab might be able to call SIM30 as a background task (no GUI)... I dont know. I think you need to enlighten me more with what you are trying to do And, BTW, if you have a DSK, the source code can be modified (hopefully by you) to do anything required. I dont want to say 'I' here since this is not my project and my schedule these days is pretty full. Best regards, Keith Larson ================================================ At 03:44 AM 11/1/01 -0800, you wrote: >Hi Keith > >Sorry to bother you but I need your help/guidance > >I am trying to simulate pulse amplitude modulation >(PAM) using the TI TMS320C30 DSP simulator (SIM3X). >My plan is to generate a source file from within >matlab (version 5.3) send the information into the >Sim3x (the sim30 will PAM modulate the data) and >receive it back into matlab workspace and display it >using matlab command. > >I've been trying to do this but without any success! > >My question is do I need a software driver to >interface matlab and the sim30 (DSP simulator) or it >can be done without any driver software! >Thanks for your help. > >Halle >__________________________________________________ > |
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Re: TMS320C30 simulator (sim30)
Started by ●November 1, 2001
Reply by ●November 1, 20012001-11-01
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hi,Halle I noticed that mathworks and TI have cooperated on the co-work of CCS and Matlab. Seems that have a tool kit for simulation with ccs and matlab together.you can visit www.mathworks.com good luck wgchen -----????----- ???: Keith E. Larson [mailto:] ????: 2001?11?1? 23:22 ???: S H; ??: [c3x] Re: TMS320C30 simulator (sim30) Hi Halle I am not a Matlab user, but I can tell you a little bit about the TI simulator. Basicaly I dont use the simulator that much, but have had to use it from time to time. SIM30 code is generated with the TI C-compiler or assembler and then loaded in COFF format. Data can also be embedded into the executable COFF file, but is usualy loaded point by point via a data file that is connected to a probe point (a breakpoint that is tagged with a different attribute). Another option requiring a little bit of COFF knowledge is to move an entire data set in a COFF file of data only. Similarily output is either in the form of a data or coff file. Note that MatLab can be used for the following making your original question a bit vague. - Create a C source representing your design - Create coefficients and an input data set - Create an input output data stream The last would require a handshake between the two tools. If not one or the other would speed on past and the data would become unsynchronized. I dont think MATLAB or SIM30 has handshaking built in so I imagine this would be a kludge. Example SIM30 stops at probe point and reads a software gate switch (a one or zero) from an IO file. SIM30 advances on switch transistion... NOT LEVEL MATLAB writes data to/from IO file MATLAB changes state of switch allowing SIM30 to continue Repeat... Then again, MatLab might be able to call SIM30 as a background task (no GUI)... I dont know. I think you need to enlighten me more with what you are trying to do And, BTW, if you have a DSK, the source code can be modified (hopefully by you) to do anything required. I dont want to say 'I' here since this is not my project and my schedule these days is pretty full. Best regards, Keith Larson ================================================ At 03:44 AM 11/1/01 -0800, you wrote: >Hi Keith > >Sorry to bother you but I need your help/guidance > >I am trying to simulate pulse amplitude modulation >(PAM) using the TI TMS320C30 DSP simulator (SIM3X). >My plan is to generate a source file from within >matlab (version 5.3) send the information into the >Sim3x (the sim30 will PAM modulate the data) and >receive it back into matlab workspace and display it >using matlab command. > >I've been trying to do this but without any success! > >My question is do I need a software driver to >interface matlab and the sim30 (DSP simulator) or it >can be done without any driver software! >Thanks for your help. > >Halle >__________________________________________________ > ------------------------ Yahoo! Groups Sponsor ---------------------~--> Cobra Gas Powered Scooter. Top speed exceeds 25 mph. Originally $599.95. Now $399.95 at Youcansave.com. http://us.click.yahoo.com/K11sED/OkNDAA/ySSFAA/26EolB/TM ---------------------------------~-> _____________________________________ Note: If you do a simple "reply" with your email client, only the author of this message will receive your answer. You need to do a "reply all" if you want your answer to be distributed to the entire group. _____________________________________ About this discussion group: To Join: Send an email to To Post: Send an email to To Leave: Send an email to Archives: http://groups.yahoo.com/group/c3x More Groups: http://www.dsprelated.com ">http://docs.yahoo.com/info/terms/ |
Reply by ●November 4, 20012001-11-04
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Hi,
halle i think what u want to do is, generate
some test data in matlab, which should be loaded as a i/p in simulator, and then
the o/p of sim should be able to use by matlab , isn't it?
well, use the memory save command from
simulator , the data will be saved as obj file, this obj file contains some
header portion and the rest will be data , better open the obj file in VC++, and
scroll through, u will notice that ur data is indeed there, now it has to be
converted to some txt file so that it can be read in matlab...
obj files donot have EOF charecter, but the
length is stored somewhere in the header, locate that, starting from the first
data, write this to a txt file till the length which u got from header.
and presto! u got the txt file which can be
used in matlab
feel free to contact me in case u have furthur
doubts..
bye
manoj
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Reply by ●November 5, 20012001-11-05
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Hello Manoj, Weiguo and Halle The COFF header definitions are given in the TMS320C3x/C4x Assembly Language Tools Guide, SPRU035C. Also, not that it matters much, but COFF formated *.OBJ and *.OUT files are quite similar. And in this case (I am pretty sure of this but did not actualy fire up SIM30) that file should carry a *.OUT 'executable' extension. The importance of this (should it become important) would be that the length and location information will also be contained in the header information. From your comments it sounds like human readbable ASCII files are easiest. In this case I would use the DSK utility FILECVRT to create a HEX boot image. The example below shows a HEX file which includes prepended bus control, length and load location information. Simply skip those lines. The DSK debugger also has the ablity to convert numerous data formats, but not FILECVRT. Luckily I have maintained an open source for this DSK so you can build whatever tool you need. Again, I would start with FILECVRT and change the fprintf() to print TI float, decimal or whatever is needed. I can provide assistance if needed, though I expect this is simple enough. Cheers, Keith Larson TMS320C3x/C4x/VC33 Applications Texas Instruments Incorporated FYI: It has been a long time since I have tried this, but if you try to load a *.OBJ file, or link a *.OBJ to *.OUT without a command file, all sections are assumed to begin to have linker offset values of zero. In other words, all sections will attempt to load to address zero, but are otherwise valid code. I used to see this from time to time when the applications engineers used to sit on the Hotline. I dont know if the newer tool interfaces are any smarter or dumber in this regard. .start "TEST",0x809800 .sect "TEST" .entry LOOP LOOP ldp @0F00000h ldi 5152,AR0 br LOOP FILE2HEX 0x00000008 Bus Width 0x000010f8 Bus Control ws=7 0x00000001 Dummy Section size 0x00809800 Dummy Start Address 0x00000000 Dummy Data 0x00000003 Section Size 0x00809800 Start Address 'TEST' 0x507000f0 0x08681420 0x60809800 0x00000000 Terminate Load --- Hi, halle i think what u want to do is, generate some test data in matlab, which should be loaded as a i/p in simulator, and then the o/p of sim should be able to use by matlab , isn't it? well, use the memory save command from simulator , the data will be saved as obj file, this obj file contains some header portion and the rest will be data , better open the obj file in VC++, and scroll through, u will notice that ur data is indeed there, now it has to be converted to some txt file so that it can be read in matlab... obj files donot have EOF charecter, but the length is stored somewhere in the header, locate that, & starting from the first data, write this to a txt file till the length which u got from header. and presto! u got the txt file which can be used in matlab feel free to contact me in case u have furthur doubts.. bye manoj |
Reply by ●November 9, 20012001-11-09
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Hello group This how i have been trying to accept data from the simulator(Sim30) to MATLAB unfortunately it is not working. the following matlab code is an example for a sampled swept frequency wave which is fed to a the C30 simulator. The C30 simulator program generates an output file which is then processed by Matlab to display the frequency response. ----------------- clear,clc %get data to matlab produced by C30 simulator fid = fopen('out1.dat','r'); dsim1 = fscanf(fid,'%x'); fclose('all'); %perform conversion from 2s complement % This is required due to incompatibility between the % SIM30 and MATLAB if dsim1~=[] i=find(dsim1>=2^31); dsim1(i)=dsim1(i)-2^32; end %save to MAT file save iir.mat dsim1 -------------- Halle --- manoj cherukat <> wrote: > Hi, > halle i think what u want to do is, generate some > test data in matlab, which should be loaded as a i/p > in simulator, and then the o/p of sim should be able > to use by matlab , isn't it? > well, use the memory save command from simulator , > the data will be saved as obj file, this obj file > contains some header portion and the rest will be > data , better open the obj file in VC++, and scroll > through, u will notice that ur data is indeed there, > now it has to be converted to some txt file so that > it can be read in matlab... > obj files donot have EOF charecter, but the length > is stored somewhere in the header, locate that, & > starting from the first data, write this to a txt > file till the length which u got from header. > and presto! u got the txt file which can be used in > matlab > feel free to contact me in case u have furthur > doubts.. > bye > manoj > ----- Original Message ----- > From: Weiguo.Chen > To: Keith E. Larson ; S H ; > Sent: Thursday, November 01, 2001 9:17 PM > Subject: [c3x] Re: TMS320C30 simulator (sim30) > hi,Halle > I noticed that mathworks and TI have > cooperated on the co-work of > CCS and Matlab. Seems that have a tool kit for > simulation with ccs and > matlab together.you can visit www.mathworks.com > good luck > wgchen > > -----????----- > ???: Keith E. Larson [mailto:] > ????: 2001?11?1? 23:22 > ???: S H; > ??: [c3x] Re: TMS320C30 simulator (sim30) > Hi Halle > > I am not a Matlab user, but I can tell you a > little bit about the TI > simulator. Basicaly I dont use the simulator that > much, but have had to use > it from time to time. > > SIM30 code is generated with the TI C-compiler or > assembler and then loaded > in COFF format. Data can also be embedded into > the executable COFF file, > but is usualy loaded point by point via a data > file that is connected to a > probe point (a breakpoint that is tagged with a > different attribute). > Another option requiring a little bit of COFF > knowledge is to move an entire > data set in a COFF file of data only. Similarily > output is either in the > form of a data or coff file. > > Note that MatLab can be used for the following > making your original question > a bit vague. > > - Create a C source representing your design > - Create coefficients and an input data set > - Create an input output data stream > > The last would require a handshake between the two > tools. If not one or the > other would speed on past and the data would > become unsynchronized. I dont > think MATLAB or SIM30 has handshaking built in so > I imagine this would be a > kludge. Example > > SIM30 stops at probe point and reads a software > gate switch > (a one or zero) from an IO file. SIM30 advances > on switch > transistion... NOT LEVEL > > MATLAB writes data to/from IO file > > MATLAB changes state of switch allowing SIM30 to > continue > > Repeat... > > Then again, MatLab might be able to call SIM30 as > a background task (no > GUI)... I dont know. I think you need to > enlighten me more with what you > are trying to do > > And, BTW, if you have a DSK, the source code can > be modified (hopefully by > you) to do anything required. I dont want to say > 'I' here since this is not > my project and my schedule these days is pretty > full. > > Best regards, > Keith Larson > ================================================ > At 03:44 AM 11/1/01 -0800, you wrote: > >Hi Keith > > > >Sorry to bother you but I need your help/guidance > > > >I am trying to simulate pulse amplitude > modulation > >(PAM) using the TI TMS320C30 DSP simulator > (SIM3X). > > > > > >My plan is to generate a source file from within > >matlab (version 5.3) send the information into > the > >Sim3x (the sim30 will PAM modulate the data) and > >receive it back into matlab workspace and display > it > >using matlab command. > > > >I've been trying to do this but without any > success! > > > >My question is do I need a software driver to > >interface matlab and the sim30 (DSP simulator) or > it > >can be done without any driver software! > > > > > >Thanks for your help. > > > >Halle > > > > > > >__________________________________________________ > > > _____________________________________ > Note: If you do a simple "reply" with your email > client, only the author of this message will receive > your answer. You need to do a "reply all" if you > want your answer to be distributed to the entire > group. > > _____________________________________ > About this discussion group: > > To Join: Send an email to > To Post: Send an email to > > To Leave: Send an email to > Archives: http://groups.yahoo.com/group/c3x > > More Groups: http://www.dsprelated.com > ">http://docs.yahoo.com/info/terms/ > > > _____________________________________ > Note: If you do a simple "reply" with your email > client, only the author of this message will receive > your answer. You need to do a "reply all" if you > want your answer to be distributed to the entire > group. > > _____________________________________ > About this discussion group: > > To Join: Send an email to === message truncated === |
