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cc2540 & Bluetooth Low energy
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  • Forum Post: Re: replacement for CC2540 with standard bluetooth chip which is pin for pin compatible

    Vi Nguyen
    Hi, Thank you for your response. I did type in a question but somehow the body was empty when it got to you. Strange! Do you have any recommendation for a System-on-Chip Bluetooth 2.0 or 2.1 compliant device which could replace the CC2540 with the least amount of re-designing of the board? ...
    on Jun 24, 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: CC2540 "SimpleProfile_SetParameter" function

    Shiyuan Liu
    Normal 0 false false false EN-CA X-NONE X-NONE ...
    on Jul 11, 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: Characteristic4 of Simple Profile

    QMW
    Hello, I have a 64 bit data to send (every 10ms) from the Keyfob to the Dongle. What is the best way of sending it? I am modifying the charasteristic4 of the simple profile into a uint8 array (size of 8). Is this the simplest way to make it done? thx
    on Jul 25, 2011

  • Forum Post: Re: Characteristic4 of Simple Profile

    QMW
    Thanks Willis! I looked into the SimpleProfile_SetParameter() function. The notification is processed by constructing a attHandleValueNoti_t and then pass it into GATT_Notification(). All I need to do is 1)to modify the attHandleValueNoti_t.len parameter to 8 2)and then copy the data into attHandleValueNoti_t...
    on Jul 25, 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 profiles

    Shiyuan Liu
    Hi, Does the SimpleBLEPeripheral sample application provide the source code for advertising, or is it part of the link layer of the stack which is not provided? Is it possible for a device to switch its GATT profile between client and server or its GAP profile between central and peripheral during...
    on Aug 9, 2011

  • Forum Post: ble single chip master pm on

    Khalil Hanhan
    Hi ! I am testing the central role of the blestack 1.1 based on SimpleBLECentral, and I got some questions: - I noticed that Rx-duration does not change, I set 2ms and 10ms. Is there a minimum Rx-Duration ? - Is the wake-up time 120µs ? Pre-Rx 410µs ? - Is there a mode like Wake...
    on Aug 9, 2011

  • Forum Post: CC2540 used as Audio transmitter

    Adrian Miller
    I am about to receive a CC2540 Development kit in the mail. I am looking at trying to send audio through this, wondering what inputs to use and how i would use them to transmit this data. What kind of inputs are there on this CC2540 Chip, how to connect a microphone to this and how would i get another...
    on Aug 14, 2011

  • Forum Post: Error in CC253x/4x User's Guide pdf?

    kazola
    The document I'm referring is: http://www.ti.com/lit/ug/swru191b/swru191b.pdf Within the section about Timer1 operation, there are a few sentences like: " An interrupt request is generated if the corresponding interrupt mask bit TIMIF.OVFIM is set together with IEN1.T1EN. "...
    on Aug 26, 2011

  • Forum Post: Scanning for devices with CC2540Master

    El dorado
    Hello, I have here 7 CC2540EM modules acting as slaves, and an 8th CC2540EM acting as a BLE Master which is connected with BTool (or own software) through aserial cable. The BLE master is not connected to any of the slaves. I try to discover all 7 possible slaves, but I only can see 5 (at most...
    on Sep 1, 2011

  • Forum Post: CC2540 packet sniffer

    El dorado
    Hello, I would like to do some RSS measurements with the CC2540 modules. I would want to use a CC2540EM module, since I only want to use SMA antenna's (not inverted F's like on the keyfob/USB stick). Unfortunately, this is only possible when connecting the CC2540EM module to a smartRF05EB...
    on Sep 13, 2011

  • Forum Post: How can I make cc2540 dongle to accept commands on Linux?

    SHRI RAAM
    Is there a equivalent of BTool for Linux? Iam using Debian Lenny Linux 2.6.33 version on ARM processor.
    on Jun 21, 2011

  • Forum Post: Simultaneous connection limits for BLE CC2540 stack 1.1

    Vasco Tesi
    Hello, In the latest release of the stack the maximum number of simultaneous connections for a BLE master has been set to 3 . Is there any way to increase that limit, within some limitations ? Do you foresee to remove this limitation, and when ? Is there a more powerful version, either free...
    on Sep 27, 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) about advertisement data of GAP

    choi chuljin
    Hello, sir. i was TEST period data transfer use sniffer packet program and provide example. project SimpleBLEperipheral and HostTestApp download to each devices, and watching the sniffer program. after than, i some change the program code. advertisement data array "static uint8 advertData...
    on Oct 14, 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: UART HostTestRelease (EB)

    Roost Daniel
    Hello my Question is do i have to configuration anything in the code to use the UART? it has a physical UART so and the rs232 is working over the UART so it should work with no extra configuration no? Thanks for the answer
    on Nov 19, 2011

  • Forum Post: Re: CC2540 Mini Dev Kit (Accelerometers)

    ashok nischal
    Hi, thank you for replying.. I will explain in detail.. Initially i work with LEDs ,Buzzer and Accelerometer bcoz , Im in the beginng level my 1st code in CC2540 #include <ioCC2540.h> #include <stdio.h> #include "buzzer.h" #include "cma3000d.h"...
    on Nov 29, 2011

  • Forum Post: Can it be possible to use CC2540 for classsic Bluetooth (v2.1 etc.) communication

    Huseyin Sahin
    I know CC2540 is intended for BLE communication. But because both stack is less that 100K size and both stack have similar hardware requirements. I really wonder what will be my limitation for implementing Bluetooth v2.1 (not EDR) complient device using CC2540. Is it possible to achieve this (at least...
    on Dec 6, 2011

  • Forum Post: Connector on the CC2540 MINI-DK keyfob board

    Abhishek Sharma89166
    Hi, I am unable to find out the ribbon cable and connector type that was supplied with the CC2540 MINI-DK and goes into the keyfob test and debug pins. What are they called and where can I buy them? Thanks a lot..
    on Dec 8, 2011

  • Forum Post: Re: HCIExt_SetTxPower does not seem to have any effect

    Brecht Van Cauwenberghe91702
    I 'm experiencing the same problem as Reto Truninger has described. When call the function HCIExt_SetTxPower in SimpleBlePeripheral from the 1.1a stack and i see no changes in RSSi value in SmartRF Studio 7. When i use the BLE 1.0 stack the RSSi value changes as expected. Was there any recent...
    on Dec 18, 2011

  • Forum Post: Re: [CC2540] About Current Time Service

    Joakim Lindh
    Hi Walter, Have you checked out The TimeApp sample sroject, found at C:\Texas Instruments\BLE-CC2540-1.1a\Projects\ble\TimeApp (Default directory) BR
    on Dec 19, 2011

  • Forum Post: Re: iPhone 4S Sample Project - Connects and interacts with the CC2540 keyfob

    H.T.
    Hi everyone, "How many end devices can be connected to an iPhone 4S at the same time?" I am trying to get an answer to the same question as well. I know this is a question more related to the iPhone side of things, but I think still very relevant for everyone who tries to use CC2540 in...
    on Dec 20, 2011
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