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Low Power RF & Wireless Connectivity

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CC2540 development
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  • Forum Post: Question about CC2540 development

    Andrea Moruno
    Hi All! I am very new in microcontroller development, and I have a device: CC2540F256RHAT ( 10 devices) and the Mini Development Kit for CC2540, I was able to run the development kit based on the documentation but now I want to program in small devices ( CC2540F256RHAT ), but do not know how to pass...
    on Mar 23, 2011

  • Forum Post: Re: Delay function for CC2540

    Younes Rashidi
    Hi Willis, Thanks for your answer. by delay function I mead something like "halMcuWaitUs()" in the CC2530. Is there anything like that in the CC2540? by OSAL timer, do you mean "osal_start_timerEx( )"? I've changed " osal_start_system()" in...
    on May 2, 2011

  • Forum Post: Taking a BLE device to maufacturing

    Nick Mastandrea
    I am developing a BLE device and dongle. Can someone give me some insite as to how you pair dongle to device in a manufactuing process. What are the major steps or hurdles to overcome?
    on May 4, 2011

  • Forum Post: Re: cc2540 accelerometer

    hazmel ilyas
    Hi Greg, Thanks for replying. By the way,I already downloaded the source code from keyFobDemo and in the cma3000d.c file, it shows that the accelerometer is "measurement mode" as it is described in the data sheet that I downloaded from the VTI's web site. However from this previous discussion...
    on Jun 9, 2011

  • Forum Post: more simple example and guide for cc2540 control

    choi chuljin
    Dear sir. I bought the CC2540 Mini Developement Kit. Installed IAR EW8051 and BTool, downloaded all datasheet and user guide for cc2540. also, i studied project debbuging, firmware download skill., I was tried to SPI communication with Temperature sensor, it succeed. i see C:\Texas Instruments...
    on Jun 11, 2011

  • Forum Post: Trouble with the USB Dongle, IAR and PuTTY

    Anna Mannila
    I would like write a logging script that would save data sent from the keyfob to my PC. For this I would need to modify HostTestRelease somewhat and to connect to the dongle via UART with an application I've written myself, not with BTool. However, at the moment I am having two problems. 1. I...
    on Jun 22, 2011

  • Forum Post: Re: btool shows status as InvalidParameter when trying the basic Read Using Characteristic UUID

    Sai Ram Mannar
    Hi Thanks for your amazing prompt response. I think I was too late to establish the connection (keyfob would'nt have been in discoverable mode). Now it works Regards Sai Ram
    on Jun 29, 2011

  • Forum Post: X.509 certificate handling on CC2540

    Ossi Rautiainen
    Hello, Do you have a library for X.509 certificate handling (validating certificate with CA's public key, extracting public key from a certificate etc.) as well as signing messages with one's private key in CC2540 development environment (IAR embedded workbench)? Thanks in advance.
    on Jun 25, 2011

  • Forum Post: Re: How do I downgrade the CC debugger firmware version from 0x0019 back to 0x0015?

    Jerry Guo
    Thanks Willis, yes, once I changed the cell battery with a brand new one, then problem was gone:-) firmware 19 is good. Do we have a way to bypass this battery issue? Or, we have to keep changing the cell battery? Because debugging usually takes time so we will have to leave the keyfob connected....
    on Jun 29, 2011

  • Forum Post: CC2540 - HostTestRelease extending scan time-out period (device discovery).

    Ed Tyrrell
    Hello, I'm using the HostTestRelease (HostTestApp CC2540) with HCI over the UART and I want to extent the devices scan (device discovery) time-out. Currently it seems to be fixed at around 10 seconds before it automatically terminates. I need to change this, preferably with no time out at all...
    on Jun 29, 2011

  • Forum Post: Re: ble single chip master pm on

    Khalil Hanhan
    - I mean by Rx-duration scanning for peripheral/keyfob, I supposed this is the DEFAULT_SCAN_DURATION since TGAP_GEN_DISC_SCAN and TGAP_LIM_DISC_SCAN is set to this duration. Is it fixed ? it did not matter if I set this to 2ms, 4ms or 10ms, I see always a fixed scanning period of ~11ms. - Before sending...
    on Aug 10, 2011

  • Forum Post: CC2540 UART Boot loader?

    Jerome Baron
    Hi, Does anyone know where I can found a UART bootloader for the CC2540? Or any version that I could do a conversion for the CC2540? I know we can upgrade through the Debug Interface, but in my application, I already have a UART connected between the CC2540 and another microcontroller, so it...
    on Aug 16, 2011

  • Forum Post: Re: New Sample Project - "KeyFobDemo" - Accelerometer, Battery, Proximity, KeyPress profiles

    Greg Vanderbeck
    I've downloaded this twice with the same results..... my keyfob is based on the BLE-CC2540-1.1a download. When this software is downloaded the function types do not align and are of different versions. Calls to the same functions are or have been rewritten and take different perameters. They are...
    on Oct 6, 2011

  • Forum Post: CC2540 UART and Low Power Mode

    Nick Close
    I am currently working on a project that includes a CC2540 and an MSP430 in the design. The two devices are connected together via a UART. The MSP430 will be sending data to the CC2540 over the UART interface once a second and the CC2540 will use this data to transmit over BLE when connected to a...
    on Nov 18, 2011

  • Forum Post: Question about CC2540 peripheral used by BLE stack library

    Jianfeng Lv
    Hi sir, I'm using CC2540 for an embedded system prototype. The system will be a BLE master and the library ble_single_chip_master_pm_off.lib is used for this purpose. I also need dma channel 1&2 and timer 1 for application. However, when I debugging the program, I found that these peripherals...
    on Nov 15, 2011

  • Forum Post: hex images to accompany the JavaSimplePeripheral application - CC2450

    Greg Sampson
    Can someone please direct me to the hex image files for the USB dongle and keyfob that work with the JavaSimplePeripheral ( http://processors.wiki.ti.com/index.php/Category:JavaSimplePeripheral) application? The readme file says: "Note, the USB dongle will need to have the network processor image...
    on Dec 28, 2011

  • Forum Post: CC2540 Development options

    Mike Bisch
    Does CCS support the CC2540? I know IAR and Keil do, but are there any other options?
    on Feb 2, 2012

  • Forum Post: OSAL clock problems

    Xiaochuan WEI95518
    I want to add time function in my BLE slave device, I also want sleep enabled, but when I check the OSAL API it says that "this feature does not maintain time for sleeping device", I want to know why, can I just enable the time counting in the sleep mode and read it and update OSAL clock when...
    on Feb 9, 2012

  • Forum Post: CC2540EM Module's Output Power adjust

    joo myung kim
    dear. There are some questions to fix Output Power to always -40dBm on CC2540EM Module. To fix Output Power to always -40dBm on CC2540EM Module. 1) is It that possible by only changing the register value? (TXPOWER register?) - Best 2) How about changing LC Value on CC2540EM reference...
    on Feb 18, 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: How to implement a Permanent observer?

    john hoffman
    Our BLE device is required to be "observing" continuously. Using the TI BLE stack, it seems like we must continuously issue Device discovery requests, wait for the discovery to complete and then repeat. Is this our only option?
    on Mar 30, 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: Can I use the USB on CC2540 Dongle for flashing the software?

    Kezhou Guan
    Hi I am currently developing a BLE device for the research industry, and I wish to allow users to flash their software onto the CC2540 Dongle. Since the dongle already has an USB port, I am wondering if it is possible to flash to device just using the USB, instead of using the debugger. Thank you...
    on Jun 29, 2011

  • Forum Post: CC2540 Dongle Reference Design + Peripheral Sample Code Doesn't Work

    joel brinton
    Hi TI, I designed a custom PCB with a CC2540, MOSFET switch and Accelerometer. The RF section is exactly per the USB Dongle Reference Design (even the layout). Now on the TI key fob I tried every single BT peripheral sample project that TI provides and it works fine (discoverable with BTool). None...
    on Dec 7, 2011

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