Stellaris® ARM® Microcontrollers

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LM3S3748
Related Posts

  • Forum Post: LM3S3748 External Oscillator fault detect?

    Ken Sanchez
    Is there a fault detect on the external oscillator/xtal that would allow the device to transition to the internal oscillator?
    on Jun 29, 2010

  • Forum Post: Re: Re:Boot Loader

    dinesh
    can you please elobrate the steps to be followed for modifying the bootloader i have the bootloader code provided with LM3S3748 but i m unable to understand how to program it with my application. --Dinesh
    on Jul 7, 2010

  • Forum Post: Re: USB in LM3S3748

    pkpyree
    suraj.nair Hi, I am new to LM3S3748, can any one please help me with how to store the values from the program to USB stick. Which is the best nearest program in stellarisware for apdoption and modification. this is precisely my question. can some one plz guide me on this
    on Jul 13, 2010

  • Forum Post: SYSCTL_NVMSTAT - Non-Volatile Memory Information

    ArkadyG
    Hello all, According to Stellaris\DriverLib flash driver code, there are some register named SYSCTL_NVMSTAT at 0x400FE1A0. Where can I find the description of this register's bits? I'm using LM3S3748. Thanks in advance
    on Aug 4, 2010

  • Forum Post: Re: Capture Mode questions

    drewv
    I'm trying to setup a timer like this using the ek-lm3s3748 board. I've been using a timeout timer and that works great but when I try to setup a Event Timer with TIMER_EVENT_POS_EDGE I never get an event. I've been trying to find some example code but there doesn't seem to be any...
    on Aug 11, 2010

  • Forum Post: Recovering a "Locked" Device

    ArkadyG
    Hello all, I have "locked" OEM LM3S3748 based board with 10 pins JTAG connector on it. Working environment - IAR Embedded Workbench 5.4 with J-LINK. Is it any way to "unlock" this board using equipment above? Any suggestions? Thanks in advance.
    on Aug 11, 2010

  • Forum Post: Hibernation and processor's registries

    ArkadyG
    Hello, I'm confused about hibernation issue. I have an OEM LM3S3748 based board using backup battery. Should I perform any actions like store processor's registers before board going to hibernate mode (as result of external electricity outage, for example)? Or should I assume that such...
    on Aug 19, 2010

  • Forum Post: USB bootloader help

    Asaf
    I'm using LM3S3748 EVB, IAR 5.50 embedded workbench IDE, and would like to operate the bootloader in USB DFU mode. My application uses USB Device bulk mode. I've compiled the example project boot_usb from StellarisWare version 6288. it works ok with usb_boot_demo_2 example. Then I moved...
    on Aug 24, 2010

  • Forum Post: LM3S3748 USB is as silent as dead

    Sergey Elizarov
    Hi, I have a problem getting any activity from USB peripheral. I have a custom board, based on LM3S3748 chip. USB D+/- pins, along with the ground, are connected directly to the miniUSB 5pin connector. I tried example firmware for LM3S3748 dev kit (USB_DEV_MOUSE, USB_DEV_SERIAL), but when I connect...
    on Nov 27, 2010

  • Forum Post: Re: Re:usb joystick

    John Spicer
    I know this was posted a while ago but thought it was worth a shot because I'm having the same problem. I can't get the joystick to connect, and I think the problem is the 'USBH_HID_DEV_MOUSE' enumerated type. I can change the USBHHIDMouse library to connect to a keyboard solely by...
    on Dec 23, 2010

  • Forum Post: LM3S9B92 and LM3S3748 Flash Protection

    David M Miller
    I've got with me two of the LM evaluation kits, the 3748 with an LCD display, and the 9B92 with USB OTG. I've been trying to enable some form of code protection on either of them, and I'm running into problems. When I attempted to set the FMPRE0 and FMPPE0 registers, the controller throws...
    on Jan 4, 2011

  • Forum Post: Re: Using driverlib Includes in CCS

    Miguel Oznaya57651
    Hello there, I was wondering if you could explain me how to modify the search path in order for CCSv4 to include driverlib, grlib, drivers and inc to the project. I´ve been modifying the example codes, and everything works just fine, but I´m looking forward to creating a new project by...
    on Jan 19, 2011

  • Forum Post: Re: Interrupt handlers

    Steve Ling
    In the qs-scope example the interrupt vectors are declared and placed into the vector table in the startup file (startup_xxx.x depending on which dev tools you are using). Possibly this is the link you are missing? For example, here are the relevant lines from the startup_ccs.c file. //*******...
    on Jan 26, 2011

  • Forum Post: Stellaris unresolved symbols Code Composer Studio v4

    Miguel Oznaya57651
    Hello everyone, After some code modifications to the examples provided on the Stellaris ROM, I´m looking forward to creating a new project (EKK-LM3S3748). With some help I was able to modify the search path so CCS could find the header files. Now I´m kinda stucked with an "unresolved...
    on Jan 21, 2011

  • Forum Post: StellarisWare Graphic Library Radio button

    Miguel Oznaya57651
    Hello everyone, I would like to have some help using the graphics library. In the GrLib Users Guide, all of the functions, defines and more are perfectly explained, but unfortunately there are no examples available on how to implement them. Basing myself on the example codes provided with the kit...
    on Jan 28, 2011

  • Forum Post: CCS V4 and Stellaris LM3S3748 EVB

    Frederic Choffat
    Hello, I am using the CCS 4 and the LM3S3748 evaluation board and a I have a problem to debug the exemple project. I follow the document spmu132b.pdf. Everything is fine until that I want to debug the project. I have the message "Build complete for... "--> ok. But after I click on "debug...
    on Feb 7, 2011

  • Forum Post: GPIO Problems using SPI Bus

    Justin Wilkerson
    Im using a Stellaris Cortex M3 USB development board with uController LM3S3748 to interface to an external memory chip using the SPI bus. The problem is that the GPIO pin i am using as a 'chip select' will not produce a voltage. I have followed the example code from Application Note AN01243 "Adding...
    on Feb 5, 2011

  • Forum Post: Composite USB Device Driver

    dave tasker
    Dear E2E I'm designing a USB based IO module based upon the LM3S3748 EVB to work with a WinXp, Win7 Host. I need to support GPIO, Analog In and virtual COM Ports. The cserial and qs_scope projects are perfect "individual examples". What I want to do is combine the two into a single...
    on Feb 10, 2011

  • Forum Post: Graphic drawing issue

    Miguel Oznaya57651
    Hi everybody, I am working on a program to control the position of 4 servomotors through the generation of 4 PWM´s, whose duty cycle is manipulated through the on-board navigation button of the EKK-LM3S3748. I have successfully achieved this, but know I would like to display the value that determines...
    on Mar 16, 2011

  • Forum Post: LM3S3748 with 40MHz ext. crystal?

    Nico teWinkel
    Hi all, Our proto board uses an external 40MHz crystal, but the chip seems to in reality run at about a third of that, around 13.3-ish MHz (could be the defined 13.56, I'm not that accurate). We set up the clock using: ROM_SysCtlClockSet( SYSCTL_USE_OSC | SYSCTL_OSC_MAIN | SYSCTL_SYSDIV_1 ...
    on Apr 7, 2011

  • Forum Post: Re: USB composite device (CDC and MSC)

    Attila
    Hello Everyone! I Don't Want to create a new post, because i found this, where the question is very similar with my problem, but i don`t found answer on my questions. I work on custom-designed board with LM3S3748, and I`m trying to combine USB Bulk Device and Mass Storage Device in a USB Composite...
    on Apr 21, 2011

  • Forum Post: More opened devices at a time

    Vlastimil Petrucha
    Hello, First of all, please excuse my english. Here is my situation: I'm trying to scan the USB bus using function "DeviceOpen" of the "lmdfu.dll" library. I open all devices on the BUS and if there is a device in BOOT mode I close all devices except this one and try to...
    on Apr 18, 2011

  • Forum Post: Loading program without debug?

    Nico teWinkel
    Hi all, I noticed that I can load a program to my prototype board very quickly (using LM Flash Programmer) in comparison with the LM3S3748 eval board, for which I can currently only load the program using the CCS debug button - and that seems to take a lot of time in itself. I haven't been able...
    on Apr 26, 2011

  • Forum Post: No Signal on USB D+ D-

    Trevor Wood
    I am using the USB driver lib on a LM3S3748 to create a USB CDC device. I have followed the example code closely. Calling USBDCDCInit() returns the device handle but the USB never connects. Attaching a scope to D+ and D- shows no activity. Any advice on how to debug this issue would be appreciated. ...
    on Mar 23, 2011

  • Forum Post: Re: No Signal on USB D+ D-

    Trevor Wood
    Thank you, I had not checked the errata. Tying PB0 and PB1 fixed the issue.
    on May 18, 2011
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