[music-dsp] TMS320C2x DSP starter kit fun
Emerson Tan 95-28046
etan at eee.upd.edu.ph
Thu Sep 7 17:00:05 EDT 2000
Yes, it's quite a stupid kit. But (correct me if i'm wrong),
wasn't it designed for control apps? not for audio apps?
i have the tms320c6701 evm. it's quite powerful, considering
that it's quite expensive! The codec's great! I think it's from
crystal semicon... It's a 48khz stereo codec. The development
tools are also great because I get to program in C rather than
On Wed, 6 Sep 2000, Jeroen Proveniers wrote:
> I got this starterkit a few days ago. Finally programming filters, osc's to
> work in realtime. But I can't get to that, because it's not possible to get
> anything decent out of the AIC (Analog Interface Circuit). The input is
> definitely blown, probably by ESD.
> The AIC is not easy to setup anyway but after spending 2 evenings trying to
> get anything decent out of it I must conclude that it must be blown. The
> only waveform that gets out decently from is a sinewave (with very low
> output, I've to turn up all the volumes and gain on my mixer).
> (even just a sine with another sine of twice the frequency and halve the
> amplitude) creates buzzing noises, weird clicks and strange spectra. I'm
> convinced that it is not a setup problem. Probably one of the
> capacitor-switched filter is broken or so, also because a sine is possible.
> Anyway, no fun till know despite the fact that I got some very heavy fat
> flanger sounds from it.
> I'm going to find a spare TLC32040, if I can get it. It's a stupid chip with
> incomprehensible documentation in a stupid starter kit, that's designed
> badly. Who connects a codec right to the outside world, without any opamps
> buffering it and protecting it.
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