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CC2541
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  • Forum Post: Re: Bluetooth 4.0 phones

    delete
    Hi, As Nick L says the app you see in the video is not made by TI and hence we cannot provide the source code. We have however made our own app for the upcoming Sensor Tag, for a sneak peak of the sensor tag and access to our source code please go to our WIKI page: http://processors.wiki.ti.com/index...
    on Feb 3, 2012

  • Forum Post: CC2541 HID compatible?

    wpa
    Hi, Does anyone know if the new CC2541 will be able to be used as a bluetooth HID device? Rgds, WPA
    on Jan 11, 2012

  • Forum Post: Re: CC254x IR Generation sample code?

    Peng Jeff
    Yes! It's infraRed. It seems that both CC2540 and CC2541 have the "IR Generation Circuitry" built in. I also found the following Application Note talking about IR Signal Generation: http://www.ti.com/general/docs/litabsmultiplefilelist.tsp?literatureNumber=swra323 But it's...
    on Mar 24, 2012

  • Forum Post: CC254x IR Generation sample code?

    Peng Jeff
    Is there any sample code for using IR Generation Circuitry on the CC254x ? I have version BLE Stack 1.2, but there are no samples about IR Signal Generation. Thanks!
    on Mar 23, 2012

  • Forum Post: Custom UUID for BLE

    Nick Close
    I have created a custom service in our BLE device and am currently using the same UUID range used by the sample SimpleProfile project for this service (0xFFF0 - 0xFFFF). Can we continue to use this range of UUID's when this product becomes released or do we need to register a range of UUID's...
    on Mar 23, 2012

  • Forum Post: Re: Custom UUID for BLE

    Nick Close
    kazola Hi! I'm not an expert about this but I think I remember if you are using your own UUID, you should employ a 128bit one :) I think you are right about the 128 bit UUID. All of the standard 16-bit UUID's specified by Bluetooth are aliases that actually represent 128-bit...
    on Mar 26, 2012

  • Forum Post: Re: CC254x Development kits

    rider
    Hi Nick and Karl, When do you expect the SensorTag for CC2541 to be available? Is it in days, weeks, months? rider
    on Apr 12, 2012

  • Forum Post: Re: SetMaxDTMTxPower doesn't change the transmitter power

    Matthias Jauss
    Hi Nick, we use the CC2541F256 on our testboard, not the EVM in this test. I flashed this hex file "CC2541_SmartRF_HostTestRelease_All.hex" and communicate with the CC2541 over the uart interface by HCI commands. Our test is very simple, we send the command HCI_EXT_ModemTestTxCmd and after...
    on Apr 20, 2012

  • Forum Post: Daisy chain BLE devices

    AJ
    Hello, I am working on a project where I need to collect some data (small amount) from where there is no Wi-Fi coverage. Will I be able to daisy chain a series of BLE devices from this location to a location where there is Wi-Fi, then use Wi-Fi to send the data to the server? How would the master...
    on Apr 18, 2012

  • Forum Post: SetMaxDTMTxPower doesn't change the transmitter power

    Matthias Jauss
    Hi, I was trying to change the transmit power of the CC2541 by the HCI_EXT_SetMaxDTMTxPower command to the possible values of 0dBm, -6dBm and -23dBm but could not see any difference on the spectrum analyser. The chip always transmitted with 0dBm. I am using the hostTestRelease project of BleStack...
    on Apr 19, 2012

  • Forum Post: GATT_Notification for reliable data transfer

    thomas ng
    Hi, I would like to use GATT_Notification to reliably transmitting a large chunk of data from a peripheral to central device at possibly fastest transfer rate, similar to LPRF BLE SerialApp example ( http://processors.wiki.ti.com/index.php/LPRF_BLE_SerialApp ), or the data throughput example. But...
    on May 22, 2012

  • Forum Post: RE: GATT_Notification for reliable data transfer

    thomas ng
    Hi tylerw, 1) Can you help me further by pointing out which section in the core spec that mention GATT_Notification will re-transmit indefinitely in case of loss packet ? I've tried to search but perhaps not hard enough to find this info. 2) If the re-transmit is indefinite, can I understand...
    on May 23, 2012

  • Forum Post: CC2541 debug problem.

    Evgeny Lunev
    Hi, I'm writing an application for CC2541-based device (BLE-CC2541-1.1b stack). Sometimes while debugging the application appears to hang and after Break (button press) following messages appear in the IAR Log window ( The stack 'IdataStack' is filled to 100% (192 bytes used out of...
    on May 24, 2012

  • Forum Post: PM3 state transition

    Evgeny Lunev
    Hi, I'm writing an application for CC2541-based device (BLE-CC2541-1.2.1 stack). So I'm wondering - in oder to switch the device to PM3 mode all I have to do is to stop all application timers? Or anything else should be done - like disabling sllep timers of RF wake event? Thank you...
    on Jun 4, 2012

  • Forum Post: RE: how to send 1-3kB of data on a trigger event cc2541

    Austin Miller
    Amy, This depends on exactly what the customer wants to do with the CC2541. It sounds like the customer needs reference for transmitting upon a GPIO input level change or a UART buffer filling. We have several examples of this in our BLE-STACK application software package. CC2541 BLE Code Examples...
    on Jun 25, 2012

  • Forum Post: CC2541 key driver tuning

    Evgeny Lunev
    Hi, I'm writing a firmware for CC2541 chip based on keyfob example from BLE stack 1.2.1. In our application instead of key 2 ( SW2 - as in keyfob) we use reed switch to monitor some magnetic field changes with characteristic periods between events up to 6-7 ms. I noticed that key driver cann't...
    on Jun 25, 2012

  • Forum Post: Port P0_6 interrupt

    Evgeny Lunev
    Hi, I'm writing a firmware for CC2541 chip based on keyfob example from BLE stack 1.2.1. In our application we use port P0_6 as interrupt source but it generate interrupts only if corresponding direction bit set to output P0DIR= 0b01000000, if I change it to input P0DIR= 0b00000000 - no interrupts...
    on Jun 29, 2012

  • Forum Post: CC2540/CC2541 instruction set, registers, memory map and other details

    Daniel Wingerd
    i'm looking for information regarding the 2540 and 2541 internal operations. i know they use a 8051 CPU but is it stock or modified? also, is there a memory map somewhere and information on any registers the mapped devices may have? i cant afford the IAR compiler but would like to use the BLE component...
    on Jun 21, 2012

  • Forum Post: Using USART-1 for HostTestApp on CC2541EM

    thomas ng
    Hi, I've been using the HostTestApp on CC2541EM with BTool, and everything is working well on the default HCI port USART-0. Now I would like to use USART-1 instead, and therefore make the following compiler switch changes to the original code: HAL_UART_DMA = 2 (instead of 1 by default) HAL_LCD...
    on Jul 5, 2012

  • Forum Post: Need help understanding callbacks on CC2540

    SnarPan
    Could anyone give a very brief step-by-step explanation of how callbacks are implemented in the CC2540 ? I would greatly appreciate it. I have the KeyFob demo up and running with the iPhone app. Everything is working fine. I’m ready to start customizing the firmware, but I am having a really...
    on May 17, 2012

  • Forum Post: Compatibility between BLE in Classic Bluetooth

    Shashank Revankar
    Hello, I am developing a bluetooth based device. For this I came across TI's CC2540 & CC2541 SoCs. I am unable to find out if they support Single Mode or Dual Mode BLE. Can anyone help? Also can I connect a cell phone with BT version 2.1 with my device (if I develop it with either of these...
    on Jul 22, 2012

  • Forum Post: RE: CC2541 I2C RESTART condition

    tomoyuki
    Hi Igor, Thank you for your prompt reply, and I'm sorry for insufficiency of my explanation. The "restart" means repeated start condition of I2C. I want CC2541 to communicate to another device via I2C, and the another device requires "restart" to read any data in it...
    on Jul 31, 2012

  • Forum Post: RE: CC2541 Transmit and Receive Problem using perl scripts

    Øyvind K
    Hi Jack Lam, You have found a weakness with the documentation when using CC2541 from the script module. It doesn't say anything about how to start CC2541 in "BLE" mode. The default is proprietary mode. A suffix must be added to the device name when creating the DAL object for CC2541....
    on Aug 2, 2012

  • Forum Post: Can the CC2541 XOSC_Q1 pin be driven by an external digital clock sourse (floating Q2?).

    Tom Soldau
    Can the CC2541 XOSC_Q1 pin be driven by an external digital clock sourse (floating Q2?). I have a 32kHz clock source available and don't have room for another 32kHz crystal.
    on Aug 1, 2012

  • Forum Post: CC2541 I2C RESTART condition

    tomoyuki
    Hi, I'm working at cc2541 I2C function. I downloaded hal_i2c.c from http://e2e.ti.com/support/low_power_rf/f/538/t/172539.aspx and tried to make restart condition. But, after restart operation, I got wrong I2CSTAT value, and I cannot make restart condition . Below are my source code. ...
    on Jul 31, 2012
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