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Low Power RF & Wireless Connectivity

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  • Forum Post: Re: WL1271 RSSI Max value

    Alon Srednizki
    Hi Sivaram, RSSI max value is indeed limited by SW to -45 (the HW has no issues receving stronger packets). I'm not sure to what percentage table you are referring to. However, since our RF sensitivity is -89dBm a possible conversion for GUI perspective can be between -45 (100%) to -89(0%)...
    on Jun 26, 2011

  • Forum Post: Re: wl1273 download firmware errorS

    Alon Srednizki
    Hi Xiang, As you noticed you are having problems in your SDIO driver. Please try to removing advanced SDIO features, for instance please start working with: 1. 1 bit SDIO 2. No DMA 3. No Block Mode Then one by one start testing the 4 bit SDIO then DMA usage then SDIO Block Mode. Thanks, Alon...
    on Jun 30, 2011

  • Forum Post: Regarding wl1271 calibration

    kai hu
    There is an introduction for the WL12XX Calibration under this link http://wireless.kernel.org/en/users/Drivers/wl12xx/calibrator there are three portions inside the NVS file and they are · Initialization information · Calibration parameter · MAC address Regarding...
    on Jul 20, 2011

  • Forum Post: 1271 / 1273 SDIO pull up resistor values

    Matt Meiller
    Hello, It is my understanding that all SDIO lines on 127x require external pullup with the exception of CLK. What is the minimum pullup resistor value that may be used such that the 127x can still pull the lines low? Alternatively, what's the max current the buffer can sink and still meet the...
    on Jul 25, 2011

  • Forum Post: TPC and DFS controlled by host processor or 1271 / 1273

    Matt Meiller
    Hi, Once 802.11h/SpectrumManagement is enabled for a 127x operated as access point, is the TPC and DFS controlled by software in the host processor, or is it controlled within the 127x radio? (can the 127x device decide to move to a different channel once a radar signal is detected, or does it provide...
    on Jul 25, 2011

  • Forum Post: Re: TPC and DFS controlled by host processor or 1271 / 1273

    Alon Srednizki
    Hi Matt, As a station we are only passive when it comes to 802.11h. Supporting this feature requires logic both in software and firmware, however most of the logic is in the SW and the way it configures the firmware. Thanks, Alon.S
    on Aug 10, 2011

  • Forum Post: Re: Bluetooth File transfer issue

    Igor56492
    Hi Pawan, Do you have a capability of providing an air sniffer of the Bluetooth connection? Igor
    on Aug 25, 2011

  • Forum Post: Re: devkit2.2/rowboat DM3730 and ti wl1271 drivers using MMC3 interface

    Andrew Watts82915
    Eyal, I have a beagleboard XM with the beagletoys wl1271 adapter board attached. I am currently using the 2.3.4 dev kit for android (i have also pulled the latest from git). I have tried to integrate the driver into the beagleboard build system but haven't had much luck. All of the pieces seem...
    on Aug 30, 2011

  • Forum Post: External Calibration WL127x module

    Igmar Hernandez
    Hi I have some doubts related to the external calibration process for the WL127x module. I know that there are 3 types of load during calibration: - Loop back - Internal FEM load - External Load (using the antenna) I also know that for Bip Calibration the load is either internal or external depending...
    on Oct 27, 2011

  • Forum Post: Does WL1273L support simultaneous ad hoc and network mode operation?

    Matt Meiller
    Hi, Does WL1273L support simultaneous ad hoc and network mode operation? Thanks! Matt
    on Nov 22, 2011

  • Forum Post: Re: Multiple TiWi Instances

    David Roberts
    Hi Eyal, Here is a log. We might be able to avoid this error message, but we will still be concerned that there may be data structures that cannot handle two or more plug-in cards. [ 6726.659088] ------------[ cut here ]------------ [ 6726.659118] WARNING: at fs/sysfs/dir.c:455 sysfs_add_one...
    on Dec 14, 2011

  • Forum Post: Re: Is UART Flow Control Necessary for TI Bluetooth?

    Elad Raz92038
    Hi Gray, There are 2 parts to my answer: HW FC - This is not needed. TX/RX connection is enough. It will also work on high-baud rate (3mbps). Remember that the BT starts with 115200 and during the init-script (Commands/ROM pacthes) one of the first commands is "switch" to high baudrate...
    on Dec 22, 2011

  • Forum Post: MMCSD1_CLK on am1808

    Tuomas Ruokamo
    Hi, Thank you all for the great community support. It has been very helpful. I am using Murata WL1273 RF-module with AM1808 Evaluation kit and I am having a small trouble with the MMCSD1_CLK. After power up I get a nice square wave from the MMCSD1_CLK with a frequency of 446 KHz . I am...
    on Jan 18, 2012

  • Forum Post: WL1273 Time Sharing of 2.4Ghz and 5GHz WLAN channels

    Matt Meiller
    Hi, Are the 2.4GHz and 5GHz WLAN RX and TX paths used in a mutual exclusive manner, or are there circumstances where both may be used at the same time? Is there a single DCO for all radios or separate DCO's for 5GHz and 2.4GHz? Thanks! Matt
    on Mar 7, 2012

  • Forum Post: Re: WPA Enterprise mode is not working with WL1271

    Tatsuya Yamamoto
    Dear Eval-san, I have some questions about CCX support. We will do CCX-V4-test by using WL1273L and WLAN driver (Ver. M6) for WinCE6.0. We want to know which item nubmber of CCX test the combination supports originally. If youhave any documents about support items list for CCX, could you...
    on Mar 15, 2012

  • Forum Post: Re: WPA Enterprise mode is not working with WL1271

    Tatsuya Yamamoto
    Dear Elad-san, > Do you have any specific test you have problem with? We will start to do CCX-certificate at Allion-lab from this month. We want to know whether the latest WLAN driver (Ver. M6) for WinCE6.0 can pass CCX-V4 before oue test. After our test, we willl compare between your...
    on Apr 2, 2012

  • Forum Post: WL1273 on 2.6.34

    Bryan DE FARIA
    Hello, What is the best driver to use for a TIWI5 through SDIO on a 2.6.34 ? Currently we are using the WILINK6 1.6.0.3 driver but we are experiencing some issues of stability when using the 5Ghz. Thanks, Bryan
    on Apr 16, 2012

  • Forum Post: WL1273 Simultaneous BT and BLE

    Matt Meiller
    Hi, Does the WL1273 support simultaneous BT and BLE operation? Thanks!
    on Mar 7, 2012

  • Forum Post: Power up sequence and short duration voltage on I/O before application of Vbat and Vio

    Matt Meiller
    Hi, 1. Is it absolutely required that Vbat come up before Vio as shown in the WL1271x and WL1273x data sheets, or may they be sequenced in either order? 2. If the WL1271 or WL1273 is powered up briefly before the host processor boots and has time place the I/O connected to WL1271 or WL1273 in a known...
    on May 10, 2012

  • Forum Post: RE: How to place WL1273 WiFi into Extreme Low Power (ELP) mode ?

    Mahesh Hooli
    Hi Eyal, Thanks for the reply. Whether WL1273L will behave similar to WL1271? We are running WinCE OS one over platform and we would like place the WL1273L module onto ELP mode/Power down mode.And when I measure the current it is around 90mA. Once in 2 minutes it goes down to 3mA for few seconds...
    on Jun 26, 2012

  • Forum Post: How to place WL1273 WiFi into Extreme Low Power (ELP) mode ?

    Mahesh Hooli
    Hello All, We are using WL1273L module in one of our designs and we are trying to force WiFi onto ELP (Extreme Low Power) or power down mode. Could you please provide me details about the commands to be used for the same? Thanks and regards, Mahesh Hooli
    on Jun 25, 2012

  • Forum Post: AM335x and WL1273/1271: General questions

    Prasant J
    Hi, I'm planning to use a wifi (SiP) module based on WL1273/1271 with AM335x. I wanted some general understanding of the system (software wise) on the following points: - The WLAN interface operates in SDIO or SPI Interface. How does one select the SPI interface? (as I understand the SDIO is...
    on Jul 20, 2012

  • Forum Post: Packet descriptors in the wl127x

    Bernard Seller
    I have a question for the experts on this forum : I know there are 16 packet descriptors that can be handled by the wl127x so at most 16 packets (or aggregates?) can be in-flight in the wl127x at any given time but how does the wl127x queue these packets ? is it a simple FIFO or there are multiple...
    on Oct 15, 2012

  • Forum Post: Audio stopped working with WL1273L Bluetooth initialization

    Mahesh Hooli
    Hi All, We changed the hardware from WL1273 to WL1273L in our design but the audio (PCM interface) stopped working once the BT is initialized. This issue is not seen with the WL1273 module. Is some additional pin muxing or settings to be done for WL1273L BT interface? Thanks, Mahesh Hooli
    on Aug 28, 2012

  • Forum Post: RE: Networks scan problem with WiLinkTM 6.0 on AM3517

    Brijesh Kamani
    Any update on this ??????
    on Nov 23, 2012
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