PSoC™ 5, 3 & 1 Forum Discussions

Hello all,

I'm working on a circuit to move a mouth servo on a puppet, tracking live voice input. My current plan is to use the analog blocks to run the audio into a PGA, then through a band pass filter, and finally into an ADC. I have been using the filter wizard to set my parameters, but when I look at the output of the Band pass filter on the analog output buss, I see what looks like the signal chopped up, probably at the filter sample filter rate. Anyway, it looks like running the ADC on that signal would not give me a reliable voice amplitude.  What should I do next, and what can I provide to the community for you to look at?  Any suggestions for what I should set the parameters in the filter wizard to?

-Chuck

My overall goal is to sample two signals at 30 ksps / signal (60 ksps total) and send the data via a wireless protocol such as bluetooth.

Current progress:

I'm able to sample one signal at 10 ksps using a 8-bit delta sig ADC. I'm able to send a few seconds of data at 10 ksps to the pc via UART. I may need to configure an external clock to get the required baud rate to match my hardware for 30 ksps.

My code currently sends one byte after each ADC conversion. I don't think that this is the best way, and I'm afraid it won't work well for 30-60 ksps.

Questions:

    
1. Should I be using some kind of buffer to store data before sending it via UART?
    
2. What's the best way to send streaming data via UART?
    
3. Will I be able to two channel's worth of data (60 ksps) using UART without issue?
    
4. Would you suggest that I use a serial-to-bluetooth module to make this design wireless? I've never used bluetooth, but the data rate seems to be ok for this application.