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CC8520
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  • Forum Post: Welcome to the wireless audio discussion forum!

    Erling
    Hi! Welcome to this new forum section on wireless audio. The background for this initiative is that we are seeing more and more of you designing wireless audio solutions, and we want to fascilitate discussions and technical support on the matter. Most of you have probably noticed our ongoing...
    on May 31, 2010

  • Forum Post: Re: Will there be demo /evaluation boards for sale for a wireless headset ?

    Erling
    Hi Mike, we are releasing the PurePath Wireless Configurator and documentation to ti.com on Tuesday/Wednesday next week (on or before 30th of June). This should clearify your questions - I'll make a post here once it is live. Best Regards, Erling
    on Jun 24, 2010

  • Forum Post: Re: SPI programming - CC8531 seems not to respond correctly on MISO

    Erling
    Hi Pawel, did you program the CC85XX with the PurePath Wireless Configurator tool first? ( http://focus.ti.com/docs/toolsw/folders/print/purepath-wl-cfg.html ). Using the default demo application should work. (It will basically generate the same sample app as the pre-programmed firmware, but the PPWC...
    on Jul 5, 2010

  • Forum Post: Re: SPI programming - CC8531 seems not to respond correctly on MISO

    Erling
    Hi Pawel, see attached snapshot, this is based on the demo project - look at the bottom of the page. Both master and slave have the option of using autonomous or host control mode (so in an application, you need to choose between host control and autonomous mode for each device.) (I ll be shooting...
    on Jul 6, 2010

  • Forum Post: Re: CC8520

    Erling
    Hi Lynn, yes - the cc8520 is programmable. PurePath Wireless Configurator is the PC tool used to generate firmware for cc8520, found here . Basically this tool gives you a set of options to configure, including freedom to custom configure external audio devices. The result is a firmware image...
    on Jul 6, 2010

  • Forum Post: Re: CC8520 I/O inductors

    Mike Tripoli
    Thanks very much for the info and link. All is clear now. To summarize; leave the inductors in place as shown to help pass EMI compliance tests. Easy enough. I've looked at the configurator; it looks very straightforward. I have a few questions but will reserve them until I've used the configurator...
    on Jul 6, 2010

  • Forum Post: CC8520 I/O inductors

    Mike Tripoli
    There are a number of 6.8nH inductors on the I/O pins (MCLK, BCLK, WCLK, etc.) on the eval boards. Are these there to keep the EVM quiet between the CC8520 and the CODEC (with its long traces and associated connectors), or should they be part of a production design where the CODEC is on (next to) the...
    on Jul 1, 2010

  • Forum Post: Re: CC85xx firmware version roadmap

    Erling
    Hi Ted, you are right, you'll need FW2.0 to have that functionality. Approximate timeframe for FW2.0 release is early next year, while FW1.1 is sometimes late fall this year. In the mean time, we will also be doing maintenance releases with minor enhancements - like support for more audio codecs...
    on Jul 9, 2010

  • Forum Post: Re: CC8520

    Erling
    Hi Yohan, we have done extensive co-existence testing on the PurePath Wireless platform. This includes coexistence with multiple PPW networks, wlan (a,b,g and n) plus a number of proprietary 2.4GHz interferers. All in all we are very satisfied with the performance, and you can expect our solution...
    on Jul 9, 2010

  • Forum Post: Re: How to connect DSP to CC85XXDK

    Erling
    Hi Flor, the immediate point I can think of is that you are not pulling the "Digital audio input valid" pin low. If this is the case, you should see the audio clocks on the slave device but no activity on the audio IO. The "digital audio input valid" pin is default assigned to...
    on Jul 9, 2010

  • Forum Post: Re: CC8520

    Erling
    Hi Pawel, any RF system will be more vulnerable when interfering RF signal strength increases, so moving units closer when signals are strong is not a good idea. Having several units "on top of each other" will most likely result in the radio going into saturation more often - and the...
    on Jul 12, 2010

  • Forum Post: Re: Will there be demo /evaluation boards for sale for a wireless headset ?

    Erling
    Hi Dave, I ll try to give all the steps required to get the digital input / digital output example working: 1) Download the latest PPWC: 2) Open the new example project "CC85XXDK Digital Demo" 3) Go to the "Flash Programming" section of PPWC, and program one board with...
    on Jul 26, 2010

  • Forum Post: New version of PurePath Wireless Configurator - v.1.0.1

    Erling
    Hi all, there is now an update available for the PurePath Wireless Configurator software. Enhancements in PPWC version 1.0.1 includes support for new external audio devices: TLV320AIC3204, TLV320AIC3254, TAS5708, TAS5710 and TAS5713. In addition, there are also new example projects including...
    on Jul 26, 2010

  • Forum Post: Re: CC8520 multichannel maximum

    Grant3050
    Pelle I am curiouse, since these parts use Frequency hopping,, If two or more paired master to slave "networks" are co-located, should they, in theory, be able to coexist. I agree that more dropped packets may result, but I wonder what the limit in the number of Master-Slave pairs would...
    on Jul 26, 2010

  • Forum Post: Multiple Logical Channels

    Daniel Craig
    Hi, i noticed that the 8520 has the bandwidth to send 5 Mbits/sec. Is there a way to utilize the full bandwidth? For example by defining more than 2 logical channels. thanks dan
    on Sep 2, 2010

  • Forum Post: Discrepency between CC8520 datasheet and CC85XX_CC2590EM_Schematic

    sparkchaser
    This post is just a heads up to those who try to use the CC85XX_CC2590EM reference design with the PurePath Wireless Configurator software. There seems to be a discrepency between the CC8520 datasheet pinout and the CC85XX_CC2590EM_Schematic. In the CC8520 datasheet, pin 36 is GIO14_LNAEN and pin...
    on Sep 13, 2010

  • Forum Post: PPWC -> config a Master with 2 stereo channels

    Michael56780
    Hi, i have downloaded and installed the PPWC 1.0.2. Build 32987. I try to configure a Master, who should send 2 stereo channels, one on AD0 and one on AD1, with the CC8520. But in the PPWC, i can select only 1 stereo pair to route?! The CC8520 support 2 stereo I2S channels, right? Can someone point...
    on Sep 17, 2010

  • Forum Post: CC8520 VBAT pin

    Glenn Zelniker
    Can anyone tell me how they dealt with the VBAT pin? The docs only mention what it's for but not how to choose the value of the external resistor or what to connect it to. --Glenn Zelniker
    on Oct 1, 2010

  • Forum Post: Re: Host-Controlled change of Logical Channel or Product ID

    Sam Wong
    Hi kristoffer, I have a slave which is going to be mounted on the ceiling and cannot be reached easily. Audio is sent from the handheld master device. If one master failed, I would like to grab another master, change its ID and be able to pair to the slave on the ceiling. With Firmware 1.0 and 1.1...
    on Oct 15, 2010

  • Forum Post: CC8520

    Bert
    so far the 8520 (31) eval board works fine. Until now some questions came up in my company: there seems to be a maximum of 4 master slave pairs. will this number go up when the SLAC audio compression is implemented? - will this number go down if the slave to master transmission (in march?!) is...
    on Sep 15, 2010

  • Forum Post: Host-Controlled change of Logical Channel or Product ID

    Sam Wong
    I have a mcu talking to the CC8520 over SPI. Everything works fine. I can scan and join without any problem. However, I need to be able to change the ID of both the master and slave based on a rotary DIP switch. Master and slave with the same ID will pair automatically. At the moment, the slave can...
    on Oct 8, 2010

  • Forum Post: Re: Host-Controlled change of Logical Channel or Product ID

    Sam Wong
    Unfortunately I have multiple slaves in the neighborhood. Not all of them are active at the same time. Multiple idle slaves will try to connect with the new master. Another property preferably to be changeable via EHIF is the audio channel ID. Please forward my wishlist to the firmware team. Thanks...
    on Oct 19, 2010

  • Forum Post: CC8520 - Network Status LED - Pairing

    kurt57633
    Hello, I'm using the host interface to do pairing on a slave via NWM_DO_JOIN with a 10 second timeout, device ID = 0xFFFFFFFF, and all other IDs set to zero. The slave successfully pairs with a master. However, the Network LED does not output the PAIRING LED pattern before I enable pairing on...
    on Nov 1, 2010

  • Forum Post: CC85xx firmware version roadmap

    trlowe
    Hi, i've seen reference to different firmware versions in the documentation, but haven't been able to find any details on the approximate time schedule for each release. My application requires a mono channel between PM - > PS and PS -> PM (with data-sub-channel) and it looks like...
    on Jul 3, 2010

  • Forum Post: Re: CC8520 Configurator - Audio Inputs

    Alto
    Hi Pelle, thank you for your reply. I have a schematic and datasheet, the question how to adjust the PurePath configurator settings. If I understood correctly, I have to change the sequences in "OFF to INACTIVE" and IWNACTIVE to Low Power" - only at this sequences I found the...
    on Nov 14, 2010
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