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UART
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  • Forum Post: Re: Problems with UART connection CC2540

    TIABO
    Hi, It would be easier to help you if you could be a bit more specific. Where/when do you "have nothing"? You should be able to find everything you need in chapter 17 of the CC2540 User Guide ( swru191 ). A possible approach, using interrupt triggered RX/TX, would in general terms be...
    on Mar 10, 2011

  • Forum Post: Is there any UART sample code or developing guideline ?

    Enid Juan
    HELP !!!! While developing the uart to bluetooth communication, like below UART <---> CC2540 Keyfob <--- Bluetooth RF --> CC2540 USB dongle We met some problems 1. The default "hal_board_cfg.h" implied to use "UART DMA" mode, and will conflict if we add other...
    on Mar 17, 2011

  • Forum Post: Keyfob "talking" to common BT dongles/devices?

    Tonu Samuel
    Spent some hour learning CC2540DK-Mini kit and related documentation. I have to admit, I do not know Bluetooth in all depth, so question can be stupid. My concern is if CC2540 keyfob (or just CC2540 chip) can communicate with usual smartphones or iPhone at all. Documents tell about LE/GATT. Meanwhile...
    on May 10, 2011

  • Forum Post: Re: how to do UART transmission from keyfob to pc

    Joakim Lindh
    In order to to use P1.4 and P1.5 for UART you will need to use Usart 0 alternative 2 by adding register set: PERCFG |= 0x01; Also try P1DIR = 0xEF; //Set P1.4 to input, others to output Note that P1.5 is TX and P1.4 is RX. See http:// www.ti.com/lit/swru191 for more information.
    on Jun 16, 2011

  • Forum Post: Using UART0 on P1 (.alt2) not success

    Enid Juan
    For remaining debug ports and using uart, we are trying to use UART0 with ALT2 : P1 1. We comment out the "HAL_UART_DMA" definition in Hal_board_cfg.h to make sure we are using "HAL_UART_ISR=1" 2. We modified the _hal_uart_isr.c ==> #if (HAL_UART_ISR == 1) /* #define...
    on Mar 16, 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: Problems running HostTestApp using CC2540 UART0 with Alt2 (P1)

    Chris Norris
    Looking for help/advice. I am using BTool.exe with the HostTestApp project on BlueGiga BLE112 hardware with CC2540F128. Using the CC2540USB configuration and communicating with USB, BTool.exe works great. Now I want to use the physical serial port. I changed to the CC2540EM Master configuration...
    on Jul 14, 2011

  • Forum Post: Re: Problems running HostTestApp using CC2540 UART0 with Alt2 (P1)

    Chris Norris
    Hi Willis, Thanks for the information on the way the HCI init configures the port. I am very curious about other internals, such as what is the criteria for the HCI layer to call HalUARTReadISR()? Having full sources would be very nice. ;) I believe that the CC2540 UART hardware is fundamentally working...
    on Jul 15, 2011

  • Forum Post: Problem UART HCI with BLE-CC2540-1.1

    Nicolas MICHEL
    Hello, I create a µC Firmware to Command a CC2540 with BLE-CC2540-1.1 Beta the µC send a HCI command via UART to CC2540 and CC2540 respond via UART. Since That I use BLE-CC2540-1.1, the CC2540 don't respond via UART. CC2540 have a good reception of the UART command , it made the Bluetooth...
    on Aug 4, 2011

  • Forum Post: Re: Size of the notification

    Joakim Lindh
    Hi Nagaraj, You can read more about the UART in the CC2540 Userguide: http://www.ti.com/lit/swru191 BR
    on Sep 20, 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: KEYFOB USART output

    Michael Collier
    Hello, I am working on a proof of concept and unfortunately time is running out. Here is what I need to do: When a value is written to a charicteristic value, I want that in turn to be written to the USART port. Preferably I would be able to write 6 8bit unsigned values to the charecteristic...
    on Feb 13, 2011

  • Forum Post: CC2540: Compile Error: Undefined external "HalUARTInit::?relay" referred in main_uart

    Kui Yen Lee
    Hi, I want to write a small program to test the UART. I got an error during compilation. Error message is "Undefined external "HalUARTInit::?relay" referred in main_uart ". I have included the directories as per below: $PROJ_DIR$\..\..\..\Components\hal\include $PROJ_DIR...
    on Feb 17, 2012

  • Forum Post: Re: CC2540 as SPI slave doesn't work with USB Dongle

    Joe Di Maggio
    The ARM-controller is sending a packet of 108 bytes, but the CC2540 receives only 30-50 of them if connected. So it seems to be a better solution to use SPI with DMA. In the Z-Stack of the CC2530 I saw an SPI-Module with DMA, can I integrate this module in my project or is there any sample app with...
    on Apr 3, 2012

  • Forum Post: Sample code using UART Service of HAL Drivers API in BLE Stack

    Peng Jeff
    Hello, Is there any sample code for using using UART Service of HAL Drivers API in BLE Stack? I have BLE Stack v1.2 and read about UART Service in the "HAL Driver API.pdf", but there are no samples about how to use it. Thanks!
    on May 2, 2012

  • Forum Post: Running HostTestRelease on the keyfob

    Gijs de Graaf
    Hello, is it possible for me to run the HostTestRelease app on the keyfob using the CC2540EM Slave configuration (the software developers guide says the build was made for the SmartRF05EB + CC2540EM)? I am asking this because of the limited time I'm able to use the IAR trial(30 days) and this...
    on Feb 22, 2011

  • Forum Post: cc2540 and uart

    Seldomlight
    Hi everybody, I am working with the cc2540 Dev-Kit. I just started programming an UART-App. I have some trouble to activate the UART0 on Port 0. I already looked for the DN112, but it compiled correctly but it doesn't work yet. In further steps I will communicate over a data cable with the...
    on Dec 21, 2010

  • Forum Post: RE: how to do UART transmission from keyfob to pc

    Alex Forward1
    Nick L config.callBackFunc = NULL; Hi Nick, I am having trouble understanding how callBackFunc is set to a specific function, what is the syntax for doing so? Thanks, Alex
    on Jun 20, 2012

  • Forum Post: CC Debugger internal circuitry? Interfering with circuit

    Miles Guidon
    I have a physical UART HCI interface between a CC2540 and a PIC microcontroller. When I run everything with the CC Debugger disconnected, my responses over the UART are choppy and inconsistent. When I connect the CC Debugger to the debug pinout and run again, my UART responses are perfect! I am wondering...
    on Jun 24, 2012

  • Forum Post: CC2540 UART register settings to use parity and 2 stop bits

    Steven Wik
    Hi all, I'm trying to connect do a device with a serial output of 4800 bps, 7 data bits, even parity, and 2 stop bits. I'm using DMA, and since 4800 baud is not one of the pre-configured options, I've had to modify _hal_uart_dma.c to work with these settings. I've been able to get...
    on Jun 26, 2012

  • Forum Post: CC2540 UART Rx Data Loss

    Jay Coggin
    Hi, I'm working with the CC2540DK and I'm having some conditional losses of incoming data on the RS232 UART port. I've read the other posts about this issue and followed all the advice, specifically this one: http://e2e.ti.com/support/low_power_rf/f/538/p/169944/668822.aspx#668822 and...
    on Jul 1, 2012

  • Forum Post: Keyfob configurable as "Network processor"?

    Andy van Tol
    Has anyone successfully configured the 2540 MiniDK keyfob as a "network processor", using HCI via a physical (not virtual) UART? If so, can you post the specific steps? Thanks...
    on Sep 21, 2011

  • Forum Post: CC2540 Keyfob - UART accessible?

    nopermanentidentity
    Hello, I'm now waiting for my CC2540 to arrive and wanted to ask wether UART0 is accessible on one of the debug headers? Thank you and cheers
    on Sep 6, 2012

  • Forum Post: HAL_UART with DMA troubleshooting

    Jonathan Cohn
    I spent days combing through old posts regarding HAL_UART with DMA support and I've finally reached a dead end. I'd really appreciate it if someone could take a look at my brief code and see if there is anything unusual about what I'm doing? Thanks! I've taken the keyfob code and...
    on Oct 6, 2012
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