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CC3200AUDBOOST: CC3200AudioBoost with TIVA TM4C123GXL

Sajad Rather4
Expert 1655 points

Part Number: CC3200AUDBOOST
Other Parts Discussed in Thread: CC3200, OMAP-L138

Hello Everyone,

I am currently working on  Signal processing algorithm implementation  on ARM Cortex M4. I want to run some basic  Audio processing algorithms and filter implementation.

Texas instrument have come up with CC3200 Audio Booster pack. As nowhere TI mentions CC3200 Audio Booster with TM4C123

So ,I need to know the compatibility issues between CC3200 AUdio BOOSTER  & TI TM4C123Gxl orelse they are compatible

Please Clarify.

regards 

Sajad

  • 0
    TI__Expert 8255 points

    Hi Sajad,

    Please refer to this post and see if it answers your question: 

    Generally speaking, please verify the schematic for compatibility between the launchpad and boosterpack.

  • 0 in reply to Austin Tanner
    Expert 1655 points

    Hello Austin,

    Thank you for getting back to my  query.

    Well i have already checked the schematics for same boards & as per my knowledge i guess they must be compatible and communication can be possible using I2C interface.

    Can you please cross verify it as i am going to purchase the board.

    Pin details of both boards are below

  • 0 in reply to Sajad Rather4
    TI__Expert 8255 points
    Hi Sajad,

    I agree with you--looks like the two boards should be compatible with correct I2C mapping on the tiva device.
  • 0 in reply to Austin Tanner
    Expert 1545 points
    Hi,

    If you want to get audio in and out of the TM4C123 Launchpad have a look at the 'Example Programs for TM4C123 and WM8731 using MDK-ARM' resource here* - the code implements I2S emulation on the TM4C123 and full details of the design of a simple audio Boosterpack for the TM4C123 Launchpad are provided. The Boosterpack uses a WM8731 codec - the same one used on the C6713 DSK - and is relatively easily fabricated (it can be hand-soldered). This is not the same as the ill-fated CircuitCo audio Boosterpack for the TM4C123 Launchpad.

    I2S emulation is not part of the Launchpad/Boosterpack specification and in addition, different TI ARM Cortex-M4 devices, e.g. TM4C123, TM4C129, MSP432, CC3200, have different SSI or equivalent peripheral blocks. The Boosterpacks mentioned above will not work with the TM4C129, CC3200 or MSP432 Launchpads. In fact connecting an I2S codec to the MSP432 appears quite problematic.



    *The details are on the companion website for the book 'Digital Signal Processing Using the ARM Cortex M4' published by Wiley.

    See also Youtube videos, search for 'Cypress FM4 Hands-on Learning' and 'Digital Signal Processing using TM4C123 Launchpad'



    Donald
  • 0 in reply to Donald Reay
    Guru 117855 points

    *** LIKE ***        Excellently detailed and "FILLED" w/pertinent Audio Resources.

    My only "reservation" - (other) Cortex M4's (even M3's) are far more "Audio welcoming" - teasing the '123 into such service - may not prove optimal...

  • 0 in reply to Donald Reay
    Expert 1655 points

    Hi Donald,

    I have gone through the book  by Wiley on DSP, it has got everything a beginner needs to get start with DSP with ARM Cortex.
     Also the booster pack you mentioned can you send me some Pin details & Code examples with TM4c123G for same or post a link. I was not able to get that.

  • 0 in reply to cb1_mobile
    Expert 1655 points
    Hello Cb1_mobile,

    Hope you are doing well & good.

    Cortex_M4 & M3 are really audio Welcoming,but they can not replace DSP's ,just for basic hands on with DSP they are good choice for a beginner.

    We should not forget that Cortex M4 & M3 Processors are not manufactured by keeping signal processing in mind.


    Regards

    Sajad Rather
  • 0 in reply to Sajad Rather4
    Expert 1545 points

    Hi Sajad,

    The details are all in a file named tm4c123_wm8731_folder.zip which can be downloaded from the link at the end of this message under 'Example programs for TM4C123 and WM8731 using MDK-ARM' in the Browse by Resource menu. Can you not access this? My preferred development environment is MDK-ARM. The code-size limited free version is suitable for the examples in the book. However, in the Browse by Resource menu there is also code for the TM4C123 Launchpad and CircuitCo Boosterpack that is compatible with CCSv6. The main difference is simply in the project files that CCS, vs. MDK-ARM use. It was a bit of a bother I seem to remember to get the CMSIS DSP library into CCS but there are instructions for this in the CCS-version zip file. The differences in the example code are very slight and concern mainly the names/paths of the driver header files and I think there is something to do with aligning data in memory in file tm4c123_aic3104_init.c.

    The CircuitCo Boosterpack used an AIC3104 codec and this was interfaced very similarly to the WM8731/AIC23 codec, i.e. using I2S emulation. Of course the configuration of the AIC3104 and WM8731 codec via I2C is quite different. The PCB design in the zip file is suitable for either the WM8731 or the AIC23 codec (they have slightly different width TSSOP packages) It's been constructed/tested with both devices.

    I agree that Cortex-M4 devices are not DSPs in the sense of TI's C5x, C6x, and even C2x devices but they do have more than adequate performance to demonstrate DSP concepts in real-time using audio signals - which is the main aim of the book and materials - and they are available at very low cost. I think that where cb1_mobile referred to audio-welcoming he may have been thinking fairly specifically of their often including (closer to) true I2S interfaces. M4 is definitely more DSP-enabled than M3, with Harvard architecture and DSP-specific instructions including SIMD if you are using 16-bit fixed point (the educational (?) examples in the book all use 32-bit floating point so that sample values and filter coefficents can be compared directly with theoretical calculations).

    I previously taught hands-on DSP experiments using TI's OMAP-L138/C6748 LCDK but those cost nearly $300 including JTAG emulator. There are Cortex-M4 development kits for $15 and even Cortex-M4 development kits including on-board audio codecs (Cypress FM4) that can do the educational job I'm interested in. These boards are also much closer to what students are using in other embedded systems/mcu basics activities and as such may help to 'de-mystify' DSP. There are now (very) low cost Cortex-M7 development boards too ...

    In the past I have presented on behalf of TI on DSP education using C6x platforms but I don't think TI are keen on DSP education using TM4C123.

    bcs.wiley.com/.../Books

  • 0 in reply to Donald Reay
    Guru 117855 points

    Donald,

    Can it "prove true" - that  both Sajad & I,  "Hit the ** LIKE ** Button" - so (Hard & Often) w/in your post - that it  VANISHED?      Damn if I can find it - Swear to God - twas there - moment ago...

    Donald12831 said:
    I think that where cb1_mobile referred to audio-welcoming he may have been thinking fairly specifically of their often including (closer to) true I2S interfaces.

    Absolument  mon ami - absolument!      Multiple (other) ARM MCUs incorporate (real) I2S - which may lead to (further) "Audio-Welcoming" inclusions.

    @ Sajad - May I disagree w/the view that,  "All  ARM Cortex M3/M4" prove,  "Audio Welcoming."     It is believed that,  "Separate and Unequal" - noted by the presence of "real/true" I2S - signals such "welcoming."    Those MCUs - minus 'real i2S' must be, "teased into submission" ...  thus "Frankenchip" (kin to "Frankenstein") - expected to compromise (audio) performance.

    Poster Donald (Mr. Reay) authored, 'Digital Signal Processing Using the ARM Cortex M4' by Wiley - and it indeed proves,  'à lire absolument!'     (MUST READ!)

    Donald's neat book - and ARM itself - note the DSP capability of  ARM M4 & M7 - to prove potent & efficient.    (while not reaching to the 'extreme' level of  'true' DSPs - yet FAR EXCEEDING them - in multiple (other) capability & performance areas - especially in the service of  'General MCU Role!' 

  • 0 in reply to Donald Reay
    Expert 1655 points
    Hello Donald,

    Thank you very much for the link,seems well documented.

    I would like to use it in CCS instead of MDK_ARM as mostly i have to work around TI technology Boards,So will try to find out the way possible.
    I have too worked a little on few DSP boards from TI, like DSKC6713,OMAP_L138 LCDK,DM6437 & You are right DSP based on TI technology are little costly but worth it,but as a beginner who is new to signals & System Processing Should learn basics & implementation on Cortex M4 Boards first ,then for higher end processing ,one can move to higher end DSP boards.

    Also students or project developers need to know about DSP implementation on Cortex M4 boards So that they can implement some filtering & signal processing operation in application required,that will extend the application area of CORTEX M4 devices.



    Anyway's would you like to share some online Website or Something where i can purchase this booster pack by easing my effort of designing it from scratch?

    Regards
    Sajad
  • 0 in reply to Sajad Rather4
    Guru 117855 points

    Sajad Rather4 said:
    Would you like to share some online Website or Something where I can purchase this booster pack

    Good Sajad - and add cb1/staff to this 'desire.'

  • 0 in reply to cb1_mobile
    Expert 1655 points

    Hello Cb1_mobile,

     

    @ Sajad - May I disagree w/the view that,  "All  ARM Cortex M3/M4" prove,  "Audio Welcoming."  

    Always and anytime,I dnt mind your disagreement on such topics.

    what needs more attention is that why and when is Cortex M4 processors used for DSP implementation and what will be the results for a beginners?

    Regards

    Sajad

  • 0 in reply to Sajad Rather4
    Guru 117855 points
    Mr. Reay - is our 'proven expert' in (usage identification) - and I suspect that his neat book - well describes - those 'Application Areas.'
  • 0 in reply to cb1_mobile
    Expert 1545 points

    Hi,
    The Boosterpack is not available to buy but all of its design information - schematic, BOM, Gerber files -  is provided in the zip file so you don't have to design anything, you just have to fabricate it. Back in 2014 with the help of TI's University Programme I approached CircuitCo with essentially that design. The design is referred to in a paper I presented at ICASSP 2014 in Florence, Italy. Two years later CircuitCo had redesigned the Boosterpack based on the AIC3104 codec and a very small number , 25 I think, were manufactured. I have a handful of these and several were distributed by TI's University Programme to university professors for evaluation. Their feedback was encouraging.  I described the CircuitCo Boosterpack in the book in anticipation of its becoming available to buy. CircuitCo advertised the board on their website but ultimately declined to manufacture any more.
    Donald

  • 0 in reply to Donald Reay
    Guru 117855 points

    Thank you - appreciated - IIRC - you & I exchanged (years past) in similar regard.     Pity the board did not make it into reasonable production.

  • 0 in reply to Donald Reay
    Expert 1655 points

    Hello,

    No problem,I have seen those design files for fabrication.Will give it a try for sure & thank you So much..!

    Really Appreciate it.

    Regars

    Sajad

  • 0 in reply to Sajad Rather4
    Guru 117855 points

    Friend Sajad - if you 'are' serious it would likely pay to, 'Consult more closely w/Donald.'     He likely  can alert you  (should time/other demands allow)  to 'special issues and/or concerns' - which do NOT normally (arrive) w/ normal/customary Design Files.

    A properly developed - high function such board - may 'raise this project from the ashes...'

  • 0 in reply to cb1_mobile
    Expert 1655 points
    Friend Cb1_mobile- You are right,Time and Time i will keep a touch with Donald for design Suggestions.
    & i hope it will be one of the demanded Boosterpacks for small scale signal processing.
  • 0 in reply to Sajad Rather4
    Guru 117855 points

    Indeed - and "stranger things" have happened!    (i.e. the grossly unwanted, DISAPPEARANCE OF "LIKE!")

  • 0 in reply to Sajad Rather4
    Expert 1545 points
    Hi Sajad,

    Please let me know how you get on if you make a Boosterpack. It should be relatively easy to run the TM4C123 Launchpad with the WM8731 Boosterpack from CCS even though I haven't supplied a CCS project. The approach I would take would be to start with the CCS project supplied on the Wiley website for the CircuitCo AIC3104 Boosterpack and replace the AIC3104-specific files (the ones I wrote) with the WM8731-specific files. (Obviously) these are not CCS/MDK-ARM specific EXCEPT for the instruction for aligning the DMA control structure (I think) in memory.
    The getting started with CCS notes supplied for the CircuitCo Boosterpack should be of help. Of course things may have moved on regarding CCS version number by now.
    Any problems let me know.

    Donald
  • 0 in reply to Donald Reay
    Expert 1655 points

    Hello Donald,

    Thank you for the help,all the way.I have given your design files to the PCB design team,they will start working on it and get the exact components required.

    Also i too believe that it should not be very much cumbersome for making it work with CCS design environment.

    Well one more thing i do want to mention  that if you maybe knowing that in DSP_C6000 boards like LCDKC6748 & C6713DSK,We use programming environment with API's like the following for an example  TALKBACK

    #include "L138_LCDK_aic3106_init.h"
    int main(void)
    {
    uint32_t sample;
    L138_initialise_poll(FS_48000_HZ,ADC_GAIN_0DB,DAC_ATTEN_0DB,LCDK_LINE_INPUT);
    while(1)
    {
    sample = input_sample();
    output_sample(sample);
    }
    }

    This type of environment i do want with the TM4C123 Plus WM8731 , I know this might be not a problem ,as i need to  includes the required libraries and change the codec configuration files for AIC3104.

    Regards

    Sajad Rather

  • 0 in reply to Donald Reay
    Guru 117855 points

    Donald,

    The assistance you have provided here is, "Off the Charts" - very much appreciated - thank you.

    To avoid, the 'risk of blasphemy' - might you, "Enable your Forum PM capability" - so that we might discuss the use of MCUs equipped w/'real' I2S?  Note that these run at 50% (minimum) increased clock speeds - and include (far more powerful) TFT Accommodation (to include high performance Graphic Accelerators) - which appear a "Superior Means" - to "Aid the Design-In" and later the "Marketing" of your fundamental idea.
    (it is my observation that, "Better Suited Tools" trump those - 'Cobbled into (unwilling) submission.')      Again - Thank you...

  • 0 in reply to Sajad Rather4
    Expert 1545 points
    Hi Sajad,

    I don't entirely understand what you're asking. In the examples for the TM4C123 with WM8731 the program tm4c123_loop_poll_WM8731.c


    looks like

    // tm4c123_loop_poll_WM8731.c

    #include "tm4c123_wm8731_init.h"

    void SSI_interrupt_routine(void){while(1){}}

    int main(void)
    {
    WM8731_data_type sample_data;
    float32_t input_left, input_right;

    tm4c123_wm8731_init(FS_48000_HZ,
    WM8731_MIC_IN,
    IO_METHOD_POLL,
    WM8731_HP_OUT_GAIN_0_DB,
    WM8731_LINE_IN_GAIN_0_DB );
    while(1)
    {
    SSIDataGet(SSI1_BASE,&sample_data.bit32);
    input_left = (float32_t)(sample_data.bit16[0]);
    SSIDataGet(SSI0_BASE,&sample_data.bit32);
    input_right = (float32_t)(sample_data.bit16[0]);

    sample_data.bit32 = ((int16_t)(input_left));
    SSIDataPut(SSI1_BASE,sample_data.bit32);
    sample_data.bit32 = ((int16_t)(input_right));
    SSIDataPut(SSI0_BASE,sample_data.bit32);
    }
    }
  • 0 in reply to Donald Reay
    Guru 117855 points

    Donald,

    Thank you - I have tried  (5 times now) to respond to your PM - the following results:

    Access Denied        (How Delightful...)

    You don't have permission to access "e2e.ti.com/.../conversation on this server.
    Reference #18.3460dc17.1525452224.1aeaffe1

    Note that I interact - via 'PM" - with over 40 different forum users.    Have "no clue" in explanation...

    Fortunately I had "Copied & Saved" my writing - which is not fully appropriate for presentation here...

    Staff/I have contacts here - I will (now) seek their assistance...

  • 0 in reply to Donald Reay
    Expert 1655 points
    Ok.This is SPI initialization functions.
    Works Same anyway.
    Thanks Donald.
  • 0 in reply to Donald Reay
    Expert 1655 points
    Hello Donald,

    I have given your Schematic And Layout details for PCB fabrication, but the thing is they are charging around 134 USD,which is very much of money to design a boosterpack.
  • 0 in reply to Sajad Rather4
    Expert 1545 points

    Hi Sajad,

    I agree that is a lot, although I am inclined to think that's not so much a specific feature of this BoosterPack but because it's for a one-off job. Consider, for example, this $19.99 boosterpack. https://store.ti.com/cc3100boost.aspx What would it cost to make one of these by your route? This is why I attempted, via the Texas Instruments University Programme, to get into an arrangement with CircuitCo (to produce large numbers). The PCB artwork (Gerber files) for the WM8731 BoosterPack are designed specifically not to make very stringent demands of the etching/manufacturing process, e.g. two-sided, no plated through holes. Although this information won't help you, my prototypes were made using a mechanical etching/milling machine and soldered by hand by a technician in my university dept. workshop. The 'cost' of that is, of course, opaque.

    Regards,

    Donald

  • 0 in reply to Donald Reay
    Expert 1655 points
    Hello,

    Maybe they charge so much because its not a bulk order just a single piece.As it requires micro soldering and Codec IC to be soldered on the PCB,otherwise i would have given it to someone in my team.
    Anyway i will check out with other people & I think it can be soldered on the DOT PCB too.
  • 0 in reply to Donald Reay
    Guru 117855 points

    Indeed - that 'mechanically etched' pcb proved a 'resourceful' creation.     In the past - by employing 'Thru-Hole' devices (usually DIPS and then soldering the leads on (both) pcb sides) we avoided the added time & expense of, 'PTH.' (plated thru-holes)    Yet increased our, 'cost of labor' - in counter-balance.      

    It is believed that today's PCB Vendors - especially if presented a design in a, 'Stepped/Repeated - Multi-Board' (i.e. ARRAY) format - can neatly reduce pcb production costs.      Beyond the cost - designing & building - "JUST ONE BOARD" - subjects that (lone) board to the 'Dreaded Single Board Anomaly' - which is (almost) GUARANTEED to DEVOUR any (savings) - resulting from a 'Single Board'   purchase...   Firm/I highly advise AGAINST such "Single Board" creation!

    Somehow the 'PM' issue was resolved - and a message should have landed.     Thanks again for your expertise & guidance in this unique project development...