How to setup DSP chip?

We have lots of people that would like to help you, but we don't know what you're asking.  Please identify what device you're using, what external components you are connecting, and what questions you have relative to the hookup.

Ok. I need to take an EMG signal and feed it into the DSP for filtering, and then transmit the results over bluetooth. I need to know how to setup external components around the dsp chip , so it works properly. Also which port would i feed the data through ? Should i use another chip before that already sends the results to DSP chip in digital, not analog ? Also how can i transmit another signal thats going to be in digital over bluetooth at the same time as the DSP signal. I only need to get the electronics part setup. I am not involved in the DSP process. I understand the theory of DSP, not how to implement in code. I have worked with PIC16F877, not any texas instruments chip. Thanks . I really appreciate it :).

EMG -- is that similar to ECG?  If so, you might find the app note ECG Implementation on the TMS320C5515 DSP Medical Development Kit (MDK) helpful.  I know nothing about EMG but my best guess would be that you will require some front-end pre-conditioning of your signal prior to sampling it with an A/D converter.  The app note I referenced might help get you thinking in the right direction, even if it's not quite the same thing.  I think that you need to spend a lot more time thinking about the analog portion of your design (perhaps in the analog forums or with an analog field applications engineer) to get the front-end correct.

Sorry, forgot the Bluetooth portion.  You might consider the TiWi module from LS Research.  It contains both WLAN and BT.  The BT interface uses a UART while the WLAN uses SDIO.  You might consider a processor such as the OMAP-L138.  Linux drivers for the TiWi are expected to be available for the OMAP-L138 next quarter.

I think I understand the analog part. I plan to use an instrumentational amplifier to get the signal. Yes its similar to the EKG, that you have on the website. The only difference is the cuttoff frequencies.  What do you mean by front end condition of signal ? Do you mean like the sampling of the signal ? Would this sampling be done by another chip prior going to the dsp chip? Should I do some signal filtering (analog) prior to signal sampling ?

For the bluetooth part OMAP-L138 has the ability to do what exactly ? If I understand correctly is this a testing board ?

By "front end" I mean before it goes into the A/D converter.  By "conditioning" I am referring to things like common mode noise rejection, amplification, etc. to get the signal into the proper voltage range to sample it with the A/D converter and process it with the DSP.

Ahh k. I got that. :). Give me a day I will have that part constructed. Then I come back with mor accurate questions. You have been a great help Brad. Just one more quick question. If I am using an instrumentational amplifier, will I need to use isolation circuitry  (if so which kind ) ?

Glad I could help!  Regarding your circuit question, I don't know the answer myself and don't think you will get any/many good answers here in this particular forum.  I highly recommend posting to one of the analog forums or talking with an analog field applications engineer.  Also, if you would be so kind as to click "Verify Answer" on the post(s) that you feel resolve your question that would be helpful for other users of the forum.

Good luck on your project!

Best regards,
Brad