Re: Re: streaming data from host to target using HPI | TMS320C54x

hello all,

I was intending to stream data from the PC to the target, shall i do
this while the DSP is halted, or can it be done while the DSP is
running.

What happened to me is that the Code Composer Studio starts to give me
error messages about target time out when i tried to read or write to the DSP
memory from the host while the DSP is running...this is very critical
for the project i'm currently working in, Please help me as quick as
possible, it's realy urgent.
thanks.
bye.

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I don't believe it's matter if you using CC debugger or write your own application to talk to JTAG - DSP will be halted every time it's being accessed. RTDX should work around it by only using JTAG during idle time, so halting wouldn't matter. Unfortunately since I haven't have an opportunity to use RTDX, I can't help you much . Mike. ----- Original Message ----- From: "Mohamed Montasser" <> To: <> Sent: Thursday, June 08, 2000 9:52 AM Subject: RE: Re: [c54x] streaming data from host to target using HPI > Yes i am using the JTAG emulator to communicate to the DSP board, but i didn't try to modify the DSP memory from within the code composer, i tried to do it from another C program written with visual studio, i used the evmdsk54x.dll in this program and called the functions in the DLL to read/write in the DSP memory, but it only works correctly when the DSP is halted. > > >From: "Mikhail F" <> > >To: "Mohamed Montasser" <> > >Subject: Re: [c54x] streaming data from host to target using HPI > >Date: Thu, 8 Jun 2000 10:09:33 -0400 > > > >If you are using JTAG emulator to communicate to your DSP board, then DSP is halted every time CC debugger reads or writes a data to it. In my experience, if you attempt to modify or read DSP memory while it's running, you'll get various problems more then 50% of the time. DSP/BIOS and RTDX should allow you to implement seamless (well, sort of) real time communications between host and a target by sending data over JTAG during DSP's idle time. I never used those features myself, so can't help you here. You should read TI's documents about BIOS and RTDX and go through their tutorials. > > > >Mike. > > > > > >----- Original Message ----- > > From: Mohamed Montasser > > To: > > Sent: Thursday, June 08, 2000 7:28 AM > > Subject: [c54x] streaming data from host to target using HPI > > > > > > hello all, > > > > I was intending to stream data from the PC to the target, shall i do > > this while the DSP is halted, or can it be done while the DSP is > > running. > > > > What happened to me is that the Code Composer Studio starts to give me > > error messages about target time out when i tried to read or write to the DSP > > memory from the host while the DSP is running...this is very critical > > for the project i'm currently working in, Please help me as quick as > > possible, it's realy urgent. > > thanks. > > bye. > > >

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Discussion Groups | TMS320C54x | Re: Re: streaming data from host to target using HPI

streaming data from host to target using HPI - Mohamed Montasser - Jun 8 11:28:00 2000

Re: Re: streaming data from host to target using HPI - Mikhail F - Jun 8 16:39:00 2000