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- Path: sparky!uunet!munnari.oz.au!mel.dit.csiro.au!mineng.dmpe.CSIRO.AU!dmssyd.syd.dms.CSIRO.AU!metro!cs.uow.edu.au!cc.uow.edu.au!u8801763
- From: u8801763@cc.uow.edu.au (Radivoj Kouzan)
- Subject: Re: TMS320C25: Continuous speech problem
- Message-ID: <1992Sep3.061220.19631@cc.uow.edu.au>
- Organization: University Of Wollongong
- References: <1992Sep2.055408.23062@cc.uow.edu.au>
- Date: Thu, 3 Sep 92 06:12:20 GMT
- Lines: 28
-
- u9066624@cc.uow.edu.au (Tippu Hassan) writes:
-
- >Hello anyone,
-
- >My name is Tippu and I live in Australia. I am working with the TI
- >"SWDS" (Software Development Systems) board which is a support tool
- >for the TMS320C25 dsp chip. I am using the TMS320C25 serial port to
- >read in digitized speech samples and then storing them on external
- >RAM memory which is on the SWDS board. The SWDS only has 32K bytes
- >of onboard RAM avialable and therefore I can only store 2 seconds
- >worth of 16-bit digitized speech. So in order to record continous
- >speech I am using the cpu processor to upload these speech samples
- >from the SWDS board RAM and store them on files once the RAM is full.
- >This is done via C applications written for the cpu.
- >My problem is that in order for the cpu to access the SWDS RAM once
- >it is full, it MUST place the TMS320C25 in halt mode, then upload
- >the speech samples and then unhalt the TMS320C25 to resume reading
- >in the next load of speech samples. But the cpu cannot execute this
- >process quite enough, and TMS320C25 loses some speech samples while
- >it is halted. I cannot uses the grep command on the TMS320C25, which
- >makes the external RAM global, because it requires external circuitry
- >for the TMS320C25 and it is wired onto the SWDS board. Can anyone offer
- >any ideas or help as it would be much appreciated.
-
-
-
-
- Sell it and buy yourself a DSP that works for Digital Signals.
-