= LM4F120 =


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{{Infobox BSP
|BSP_name     = LM4F120
|Manufacturer = Texas Instruments
|image        = Stellaris Launchpad.jpg
|caption      = Stellaris Launchpad
|Board_URL    = LM4F120: [http://www.ti.com/tool/EK-LM4F120XL],  TM4C123G: [http://www.ti.com/ww/en/launchpad/tiva_c_head.html]
|Architecture = ARM Cortex-M4F 
|CPU_model    = 80 MHz Cortex-M4F CPU
|Monitor      = TI proprietary bootloader
|Simulator    = Yes. [OpenOCD simualator]
|Aliases      = EK-LM4F120XL
|RAM          = 32-KByte SRAM
|NVMEM        = 256-KByte flash, 2-KByte EEPROM
|Serial       = 4 serial ports
|Video        = 
}}
= Overview =


This is the cheapest evaluation board the Stellaris LM4F CPU family. '''NOTE: Please note that after the release of the LM4F Stellaris family, TI went ahead and rebranded whole Stellaris LM4F line to Tiva C Series or Tiva C TM4C family. See below for a link to table listing corresponding part of LM4F and TM4C families'''
= Features =

 *  Stellaris LM4F120H5QR microcontroller
 *  USB micro-B connector for USB device
 *  RGB user LED
 *  Two user switches (application/wake)
 *  Available I/O brought out to headers on a 0.1-in (2.54-mm) grid
 *  On-board Stellaris ICDI
 *  Switch-selectable power sources:
  *  ICDI
  *  USB device
 *  Reset switch
 *  Preloaded RGB quickstart application
 *  Supported by StellarisWare software including the USB library and the peripheral driver library
 *  Stellaris LM4F120 LaunchPad BoosterPack XL Interface, which features stackable headers to expand
the capabilities of the Stellaris LaunchPad development platform
= Documentations =

 *  Stellaris® LM4F120 LaunchPad Evaluation Kit User's Manual (Rev. B) [http://www.ti.com/litv/pdf/spmu289b]
 *  Stellaris® LM4F120H5QR Microcontroller [http://www.ti.com/lit/ds/symlink/tm4c1233h6pm.pdf] -- this is actually for Tiva C TM4C1233 MCU, but this is equivalent part to LM4F120H5QR.
 *  Corresponding Tiva TM4C and Stellaris LM4F part numbers [http://e2e.ti.com/support/microcontrollers/tiva_arm/f/908/t/271820.aspx]
= Board Setup =


The board runs find without any tuning/switching. 
= Downloading and Executing =


See <ref name="Debugging">
= Debugging =


Using OpenOCD >= 0.7.0. This OpenOCD release added Stellaris ICDI support. On Windows I'm using ''bin\openocd-0.7.0.exe -f scripts\board\ek-lm4f120xl.cfg'' to start the debugger. Then I connect to it GNU RTEMS debugger by

''target remote localhost:3333
monitor reset halt
load <rtems.exe>
cont
''
= Test Reports =


{{Test Report
|Version = submitted for inclusion [http://www.rtems.org/pipermail/rtems-devel/2013-August/004185.html], [http://www.rtems.org/pipermail/rtems-devel/2013-August/004186.html]
|Date    = August 14 2013
|User    = [wiki:User:KarelGardas User:KarelGardas]
|Report  = hello.exe was running fine. ticker.exe not due to limited RAM available on this board.
}}