Stellaris® ARM® Microcontrollers

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Stellaris® ARM® Microcontrollers

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  • Forum Post: Stellaris EPI interface POR issue

    Manivannan Elangovan
    Hi, We are using lm3s9b90 cortex m3 device, in the device we are using EPI interface in HB16 mode to connect to a FPGA. The issue we are seeing is on Power-On-Reset the EPI interface doesn't seem to work. If we do a reset after POR via reset button, the EPI starts communicating with the FPGA. The...
    on Sep 7, 2012

  • Forum Post: Re: Re:UART, uDMA and Receiver Timeout not working

    Stellaris Joe
    Hello. I am sorry you did not receive a quick response. Perhaps we missed it when moving the forums from luminary micro to TI. Anyway, as for your questions. You are focused a lot on the receive timeout of the UART, and you mention that you get it or not. How do you know this? The receive timeout...
    on May 4, 2010

  • Forum Post: Re: Re:Stellaris Isochronouse Pipe code example needed

    Stellaris Paul
    The good news is that you do not have to worry about any complexities of handling Isochronous versus bulk endpoints, since most of that is handled by the hardware. Also the difficulty with a pure isochronous example is that it has very little meaning without some context to the data being sent and would...
    on May 5, 2010

  • Forum Post: Re: [LM3S3748 EVB] Problem in Switch Host <-> Device USB

    Stellaris Paul
    To safely call USBDCDCTerm() it should be only called with the value that was returned from USBDCDCInit() otherwise it may cause unknown results including a fault due to an invalid memory access.
    on May 5, 2010

  • Forum Post: More Problems with PWMSyncTimeBase()

    mikem
    I have been working with the LM3S9B92 evaluation kit to evaluate the performance of the PWM peripherals of the Stellaris devices. I have tried several approaches to configure two generators in a specific manner to meet our application needs without success. In my latest attempt, I am trying to reset...
    on May 5, 2010

  • Forum Post: Re: High speed acquisition with 9B92

    Stellaris Joe
    Have you tried without DMA yet to see if it will work? How much data do you plan to transfer at one time before stopping? In other words, how many data items does the DMA need to transfer at one time? There is not really any way to tie a DMA transfer to a particular clock edge. I think the solution...
    on May 6, 2010

  • Forum Post: Re: Stellaris LM3S9B96 is ready for Microsoft .NET Micro Framework v4.0

    Stan Chen
    Dear Stellaris MCU Experts: If you are expert of TI Stellaris ARM Cortex-M3 MCU, please join us, I create a blog: http://armcortexm3.blogspot.com/ This blog is maintained by Golden IC technology Co., Ltd. There are many experts of Golden IC, they have more than 10 years experiences in...
    on May 7, 2010

  • Forum Post: Re: dsp library for Cortex-M3 Microcontroller?

    Stellaris Paul
    We do not supply and DSP like libraries as part of our standard release but you may be able to find some support here on forums. What type of library functions are you looking for specifically?
    on May 8, 2010

  • Forum Post: Re: PWM Output and Open drain

    Stellaris Paul
    What interrupts do you have enabled in the QEI controller? These are set by the QEIIntEnable() call which you need to call as well as the IntEnable(INT_QEI0);
    on May 8, 2010

  • Forum Post: Re: source code for graphics library

    Stellaris David
    Hello Vigneswaran, SliderStruct is not a function; it is a macro that provides an initialized slider widget data structure, which can be used to construct the widget tree at compile time. The macro is defined in slider.h, which you have already found. An example of how widgets are constructed and...
    on May 10, 2010

  • Forum Post: Re: Failure to sump program in LM3S6432 of Luminary Micro Serial to ethernet converter(model-S2E)

    vinita soni
    Hi thanks a million for your reply. my project concerns making the parameters related to a UPS(Uninterrupted Power Supply) available on the internet for monitoring and configuration. For this i am using Luminary Micro S2E module and IAR embedded workbench for ARM. What i have done is that i...
    on May 11, 2010

  • Forum Post: Re: Usbid pin Configuration in LM3S5956, Rev C1

    Stellaris Paul
    Despite removing the errata, you will still need to use PB0 to allow the OTG controller enter host mode. This is only used to detect the cable and is ignored after host mode has been established. If you are using PB0 as an input then it must be held low during cable detection which is completed when...
    on May 12, 2010

  • Forum Post: Re: source code for graphics library

    Vigneswaran Sajenthan
    Hi David, thanks for the information is that possible for me to get the source code of the macro? does TI has code for the circular slider widget for DK-LM3S9B96 if so where can i get it -sajenthan
    on May 13, 2010

  • Forum Post: question about android OS on LM3S... devices

    AnonymousContent
    Dear All, I am interested to know if it is possible to use the Android OS on the Lm3S... devices, or as a matter of fact similar ARM devices. If so, then perhaps an article or guide of how to proceed with an install or begin configuring a compile, etc. would be nice. Best regards, ghasem
    on Mar 31, 2010

  • Forum Post: Re: source code for graphics library

    BrandonAzbell
    Vigneswaran Sajenthan thanks for the information is that possible for me to get the source code of the macro? The slider.h has all the information required for the SliderStruct() macro starting at line 327 through 362. As David mentioned, the macro simply helps initialize a tSliderWidet structure...
    on May 13, 2010

  • Forum Post: Re: Bug in ush.h in driverlib

    Dave Wilson
    This definitely appears to be a bug so I've raised it in our issue tracking system and it should be fixed in the June release. Looking at the code, it appears to expect USB_EP_0 rather than USB_EP_HOST_EP0 so perhaps substituting this would work for now?
    on May 13, 2010

  • Forum Post: Re: Re:Use external SDRAM

    paulz
    Dave, This thread peaked my interest, as I'm trying to do a similar thing. It seems like C source level debugging should work, as long as the debugger supports software breakpoints. Can you elaborate? Chris, Any progress on your testing? -Paul
    on May 14, 2010

  • Forum Post: Re: Stellaris LM3S9B92

    Stellaris Joe
    You select it per pin. For every pin you can choose the alternate function. The register itself has a 4 bit field for each of 8 pins on a port. The next table, 25-6 is supposed to help you choose how to allocate the alternate functions. You start with the functions that can be on only one pin and...
    on May 14, 2010

  • Forum Post: source code for graphics library

    Vigneswaran Sajenthan
    i'm trying to develop circular slider wedge in the DM-LK3S9B96 using the graphics library for that when i try to find the source code for the #define SliderStruct(pParent, pNext, pChild, pDisplay, lX, lY, lWidth, lHeight, lMin, lMax, lValue, ulStyle, ulFillColor, ulBackgroundFillColor, ulOutlineColor...
    on May 10, 2010

  • Forum Post: Re: Re:read pin on lm3s9b96

    Stellaris Paul
    Can you post the code that you are having trouble with? Here is a quick sample of configuring and reading GPIO Port A pin 0. // // Enable GPIO port A // SysCtlPeripheralEnable(SYSCTL_PERIPH_GPIOA); // // Configure Port A pin 0 as an input. // GPIOPinTypeGPIOInput(GPIO_PORTA_BASE, GPIO_PIN_0...
    on May 17, 2010

  • Forum Post: Re: [BUG][usblib 5961] CDCTickHandler called with wrong parameter.

    Stellaris Paul
    You are completely correct this was missed in the conversion of the handlers to use instance data rather than the ulIndex parameter. I will open an issue on this so that we can get this fixed.
    on May 17, 2010

  • Forum Post: Re: USB data toggle sequence issue?

    Stellaris Paul
    OK I duplicated your issue and found the root cause. There is a bug in the USBDevEndpointStallClear() function that is causing the data toggle to not be cleared on OUT endpoints other than 0. It is a simple fix that you can add and will be in future releases of DriverLib. In USBDevEndpointStallClear...
    on May 17, 2010

  • Forum Post: Re: Stellaris Serial to Ethernet Questions and Concerns

    Stellaris Paul
    If you do not need the line driver connection then you can just use the TX/RX pins and connect them directly to another serial port on another device as long as it does not require rs-232 levels. As far as programming the device, it does come with a flash loader resident on the part but it is a one...
    on May 17, 2010

  • Forum Post: Questions about RDK-BLDC Schematics

    LPH
    Hi there, I have tried to open the schematic drawings within "RDK-BLDC Board Design Package" using Portel with no success. Also, I have asked my friend to use OrCAD to open the drawings, but the results are the same. Does anyone know what tool I should use to open the schematic drawings...
    on May 18, 2010

  • Forum Post: Stellaris Serial to Ethernet Questions and Concerns

    Jeff Rieger
    I've worked with the Stellaris Serial to Ethernet board (MDL-S2E), but for cost purposes I wanted to integrate the board into an RFID Reader ( CC2520 + CC2591 ). The Serial to Ethernet is capable of handling RS-232 communication, but I do not require this. All I'm looking to do is connect...
    on May 17, 2010
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