Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Recent content by derrick_chi

  1. D

    I2S Master Debug Help

    Hi KlausST I’ve design a simulation slave model based on the exact design in the spec, and yes in simulation things are working. I do have some PULLDOWNS on certain signals, so as far as I can tell nothing is “floating” hmmm, I’m gonna take a look at the schematic of the bluetooth module and...
  2. D

    I2S Master Debug Help

    It's not the bluetooth device ... something else is going on more fundamental to I2S. Hopefully someone with I2S experience will respond.
  3. D

    I2S Master Debug Help

    Well the fact that I hear the music sorta proves the Bluetooth device is working, its playing the audio the I2S master is sending it, so the static/noise must some how be in the audio data stream, or perhaps it’s a configuration issue? I’m sure someone with I2S experience has seen this before...
  4. D

    I2S Master Debug Help

    Hi Barry Yes there is a Bluetooth module which connects directly to our SoC via the I2S Master. It is configured for 16 bits, 44100 sample rate, Left Justified two clock delay before MSB after WS changes which from what I understand is the I2S standard? If you look at my wave, I believe...
  5. D

    I2S Master Debug Help

    Hello OK so I’ve designed an I2S Master to facilitate the transfer of audio to/from onboard files, external microphones and external DSPs. I believe it’s designed correctly according to the spec, in simulation it looks like things are working fine, however in the real world, there is an...
  6. D

    [SOLVED] Steaming Audio 44.1kHz Delta Sigma DAC --> FPGA

    Dan I have another question. I'd like to be able to increase and decrease the volume digitally. I've read a little bit on this and it seems that while this is not the optimal way to change the volume that it can be done. I was wondering if you might have an idea on how this can be done...
  7. D

    [SOLVED] Steaming Audio 44.1kHz Delta Sigma DAC --> FPGA

    PROBLEM SOLVED!!!!!!! Thanks Dan, you are aces in my book!!!
  8. D

    [SOLVED] Steaming Audio 44.1kHz Delta Sigma DAC --> FPGA

    HUH???:shock: Good grief, this is the first time I've heard this, forgive my ignorance, can you please explain why I shouldn't be complementing but adding 32768 --> hex -->0x8000? Well you did already give an explanation, however I do have one other question, should I be adding --> (0x8000 +...
  9. D

    [SOLVED] Steaming Audio 44.1kHz Delta Sigma DAC --> FPGA

    Hi All I am having a problem with a DAC and I need a little help. I am attempting to stream audio from an iPhone via Bluetooth. I have an FPGA connected to the Bluetooth chip via an I2S interface, so as the audio comes in I am passing it along to the Delta Sigma DAC and from there of...
  10. D

    IEEE Floating Point Square Root Algorithm

    Hi All Can any one help me out with this? I've been looking for an algorithm on the web for days now and I don't see anything the directly addresses my question. So do any of know of an algorithm for performing square root on an IEEE floating point number (single precision)?
  11. D

    HELP!!! Modelsim TCL Error **Error invalid command name &quo

    modelsim error in tcl script Has anyone everseen this error **Error invalid command name "" before? I wrote a tcl script to test some hardware that I designed and when I run the script I get that error. I've pasted the error and the script in below, any help would be apprieciated, thanks. #...
  12. D

    C++ Programmer Needed! Short project, <= 1000 lines of co

    Re: C++ Programmer Needed! Short project, <= 1000 lines o Hello The type of program I am looking for is a user interactive application program, that basically automated the procedure described in the link I posted. All of hardware necessary to do so is already built and proven.
  13. D

    C++ Programmer Needed! Short project, <= 1000 lines of co

    Re: C++ Programmer Needed! Short project, <= 1000 lines o The link I posted works for me, try it again. The "-- short description" is not apart of the link by the way.
  14. D

    C++ Programmer Needed! Short project, <= 1000 lines of co

    Hi Guys Not sure if any of you know this or not but I have recently taken on a project to put some semi-autonomous features into an RC of mine. In particular its a 1/8 scale monster truck. I'm doing this to test out a small SOC I have just finished designing. I say small but this is...
  15. D

    Interested in custom IC and programming build thread?

    Hello all. I've been planning for sometime now to add some custom circuits and programmable logic to my RCs, I've already done so with my car and I was planning to start on a pretty large project with a monster truck I just got. I plan on adding some autonomous capabilities to the truck by...

Part and Inventory Search

Back
Top