Stellaris LM3S811 Evaluation Board User`s Manual (Rev. B)
Contents
1. 31 Figure B 2 Evaluation Board Dimensions 32 January 6 2010 7 Stellaris amp LM3S811 Evaluation Board List of Tables Table 3 1 Table B 1 Table B 2 Table B 3 Isolating On Board a 18 I O Breakout Pads Terni a Eros eire 32 Recommended Connectors siia 33 20 Pin JTAG SWD Configuration 34 January 6 2010 Stellaris LM3S811 Evaluation Board The Stellaris LM3S811 Evaluation Board is both a compact and versatile evaluation platform for the Stellaris LM3S811 ARM Cortex M3 based microcontroller and an In Circuit Debug Interface ICDI for any Stellaris microcontroller based target board The EVB allows users to evaluate prototype and create application specific designs Figure 1 1 Evaluation Board Layout Reset Switch OLED Display User LED Thumbwheel Potentiometer Cee x EVAL z USB Interface for In Circuit Debugging Jr n B WE E E Fi y ne ag o a QUT 4 TMTV t Stellaris LM3S81 1 User Push Switch JTAG SWD to external target Features The Stellaris amp LM3S811 Evaluation Board includes the following features Stellaris amp LM3S811 microcontroller OLED graphics display with 96 x 16 pixel resolution User programmable pushbutton and LED Reset pushbutto2. Stellaris LM3S811 Evaluation Board LM3S811 Microcontroller sheet 2 of 3 7 ed ES zm 5 ATA TOR eus seoepieju pue gsn P Inr a Na pieog uonenje 3 118557 e a Buweig od 1 f j ASGITOI9Sd L Occ 4 5 AOL VSCIONTFLNS uot LT Ursus CH Ant 8 8 Te z sus Ag e ASGEE9ELSdL ASt A ddng 1 A o1 AS ASN anro so anro DAV sco I ar am de PS 2 L VOIDDA 619 St aso 4 ZHW00 9 amsovar A tH 01XZ ag 4 2 11015 T IAS SALX Em XIX mO EN lt Per Tt 9rO 61V OMS OQ
3. 7 Stellaris Virtual COM Port Click Finish to close the wizard You may want to use Device Manager to identify the COM Port assignment Now that drivers are installed Windows automatically assign a COM port to the LM3S811 Evaluation Board each time it is connected About HyperTerminal HyperTerminal is an ASCII terminal emulator that is included with Windows It provides an easy way to transfer ASCII data to and from the LM3S811 Evaluation Board using the Virtual COM port feature The quickstart application sends a running tally of the game score through UARTO of the LM3S811 Starting HyperTerminal 1 From the Windows XP Start menu select Start gt All Programs gt Accessories gt Communications gt HyperTerminal 2 HyperTerminal asks for a name and icon to associate with the terminal profile you are about to create Neither the name nor the icon selection is critical 24 January 6 2010 Stellaris amp LM3S811 Evaluation Board 3 Click OK to continue Connection Description New Connection Enter name and choose an icon for the connection Name LM3S811 EVB Icon 4 Select the COM port assigned to the LM3S811 Evaluation Board In the example below it is 7 Click OK Connect To E LM3S811 EVB Enter details for the phone number that you wantto dial Country region Area code Phone number Connectusing FJ 6 2010 25 Commun
4. Continued Stellaris amp LM3S811 Evaluation Board Pad No Description Pad No Description 13 PD0 PWM0 28 PB6 C0 14 GND 27 PB7b 15 PD2 U1Rx 26 PE0 PWM4 16 PD3 U1Tx 25 PE1 PWM5 17 PB0 PWM2 24 PB3 I2CSDA 18 PB1 PWM3 23 PB2 I2CSCL 19 GND 22 RESET 20 3 3V 21 GND a Indicates an I O line that is used by EVB hardware b PB7 should not be used as a GPIO Table B 2 Recommended Connectors Pins 2 20 19 way Socket Pin Header Pins 21 40 20 way Socket Pin Header January 6 2010 Sullins PPPC191LFBN RC Sullins PTC19SAAN Sullins PPPC201LFBN RC Sullins PTC20SAAN Digikey S7052 ND Digikey S1012 19 ND Digikey S7053 ND Digikey S1012 20 ND 33 ARM Target Pinout ARM Target Pinout 34 In ICDI mode the Stellaris LM3S811 Evaluation Kit supports ARM s standard 20 pin JTAG SWD configuration The same pin configuration can be used for debugging over Serial Wire Debug SWD and JTAG interfaces The debugger software running on the PC determines which interface protocol is used The Stellaris target board should have a 2x10 0 1 pin header with signals as indicated in Table B 3 Table B 3 20 Pin JTAG SWD Configuration Function Pin Pin Function nc 1 2 nc nc 3 4 GND TDI 5 6 GND TMS 7 8 GND TCK 9 10 GND nc 11 12 GND TDO 13 14 GND RST 15 16 GND nc 17 18 GND nc 19 20 GND ICDI does not control the
5. Real Time Clock RTC capability Separate watchdog clock with an enable Programmable interrupt generation logic with interrupt masking Lock register protection from runaway software Reset generation logic with an enable disable Synchronous Serial Interface SSI Programmable interface operation for Freescale SPI National Semiconductor MICROWIRE or Texas Instruments synchronous serial Master or slave operation 11 Stellaris amp LM3S811 Evaluation Board Two fully programmable 16C550 type UARTs Separate 16x8 transmit TX and 16x12 receive RX FIFOs to reduce CPU interrupt service loading Programmable baud rate generator Analog to Digital Converter ADC Single and differential input configurations Four 10 bit channels inputs when used as single ended inputs Sample rate of 500 thousand samples second W 2C Bus with Master and slave receive and transmit operation with transmission speed up to 100 Kbps in Standard mode and 400 Kbps in Fast mode Six motion control PWM outputs 1 to 32 GPIOs depending on user configuration On chip Linear Drop Out LDO voltage regulator 3 3 V supply brownout detection and reporting via interrupt or reset On chip temperature sensor 48 pin RoHS compliant LQFP Industrial operating temperature 12 January 6 2010 Getting Started The Stellaris LM3S811 Evaluation Kit Quickstart provides step by step instructions for getting started with your Stellaris L
6. 16 USBto J TAG SWDs 6 tt orta utet 16 Mirt al SOA e a M n ten que n Ra eese 16 Organic LED Display iiio nep c eec Meat ahay ad ie HE Pesce bep Pet aduer onda 16 I 16 Goritrol nonet as epp tn ebat dn e tlm Bu ashi ana 16 Power SUpply atem E dete 17 Design G ldelilies s n ee OE tette we dettes met sor sette 17 Further Referenta 17 Other Pertph rals cie i meo Ri EU ee idi eee ois te fas 17 Thumbwheel 17 USeri IDEEN 17 ua ud ua aes E Lu rie SEE 17 Bypassing Peripherals tS ined Dre ee eite Pd at eh is Ces 17 IMLS PACING to the zz mm 18 Using the In Circuit Debugger Interface 18 IGDI Reatut s acus ach cea rege rede 19 Enabling GD Mode euer 19 ARM Target Gable s tte rei eie 19 Starting ICD u TEE 19 January 6 2010 5 Chapter 4 COMMUNICATIONS s kas asi ass 21 Using the Virtual COM 21 Confirming Driver Installation n 21 Inst
7. 5 ws se Old9 0 siolsiseti 090 87 AEEF I uAqunup D ta XLOVTVd ano ant APje lt XW dOA 9 0 12 ALLE ALL lat Id FINA 18d 61 lt 91 9 st OF o 0 8c 6 OF 8 OF 9 OF oF t o t o 1 ant anro anro anro 62 Es 92 IME 90 81 90 c ny 302984 aya IISSEINT aasi 41100 ZHIW00 9 tah f T or 5 050 Hay gt usuasn f k Tdv PT 00 ss 4 NE 4 PE aad DOLOR RES 4 4 4 4 4 HANO IMS Lt U NAS Jasoy January 6 2010 28
8. code Stellaris Firmware Development Package with example source code 10 January 6 2010 Stellaris amp LM3S811 Evaluation Board Evaluation Board Specifications Board supply voltage 4 37 5 25 from USB connector Board supply current 80 mA typ fully active CPU at 50 MHz Break out power output 3 3 Vde 100 mA max Dimensions 3 90 x 1 40 x 0 30 LxWxH RoHS status Compliant System Requirements Microsoft Windows 2000 XP or 2003 128 MB of RAM 512 MB recommended 100 MB of available hard disk space 1024 x 768 minimum screen resolution CD ROM drive USB port Supported Devices In Circuit Debug Interface ICDI mode presently supports all Stellaris amp Family devices Features of the LM3S811 Microcontroller January 6 2010 32 bit ARM Cortex M3 v7M architecture optimized for small footprint embedded applications Thumb compatible Thumb 2 only instruction set processor core for high code density 50 MHz operation Hardware division and single cycle multiplication Integrated Nested Vectored Interrupt Controller NVIC providing deterministic interrupt handling 27 interrupt channels with eight priority levels 64 KB single cycle flash with two forms of flash protection on a 2 KB block basis 8 KB single cycle SRAM Three timers each of which can be configured as a single 32 bit timer as a dual 16 bit timer with capture and simple PWM modes or to initiate an ADC event
9. has a fixed 2 address of The Stellaris driver library DriverLib included on the Documentation and Software CD contains complete drivers with source code for the OLED display 16 January 6 2010 Stellaris amp LM3S811 Evaluation Board Note that the SSD1300 s 12 bus implementation is not 100 compliant with the 2 specification Designers should refer to the 5501300 datasheet before connecting other 126 devices to the bus Power Supply 10 V supply is needed to bias the OLED display In addition a boost converter has been added to the board This supply is dedicated to the OLED display and should not be used to power other devices Design Guidelines The OLED display has a lifetime of about 10 000 hours It is also prone to degradation due to burn in similar to CRT and plasma displays The quickstart application includes both a screen saver and a power down mode to extend display life These factors should be considered when developing EVB applications that use the OLED display When using the EVB as an In Circuit Debug Interface ICDI the OLED display is held in reset to reduce power consumption and eliminate display wear out Further Reference For additional information on the RGS08096016BW001 OLED display see the www rtidisplay com web site Full details on the SSD1300 controller are available from the Solomon Systech Ltd web site www solomon systech com Other Peripherals Thumbwheel Potent
10. B device controller 02 FT2232 when instructed by the debugger The Keil RVMDK debugger does not support external reset Instead the target device is reset using JTAG operations In ICDI mode the reset push switch has no effect Power Supply LM3S811 is powered from a 3 3 V supply rail that is common to all devices on the EVB low dropout LDO regulator regulates 5 V power from the USB cable to 43 3 V 3 3 V at up to 100 mA is available for powering external circuits at break out pin 20 Debugging Stellaris microcontrollers support programming and debugging using either JTAG or SWD JTAG uses the TMS TDI and signals SWD requires fewer signals SWCLK SWDIO and SWO The debugger determines which debug protocol is used For example Keil RVMDK tools support only JTAG debugging January 6 2010 15 Hardware Description JTAG SWD signals are multiplexed with GPIO functions inside the Stellaris microcontroller Do not configure JTAG SWD pins including PB7 TRST as GPIO Doing this prevents in circuit programming and debugging USB Device Controller Functions Device Overview An FT2232 device from Future Technology Devices International Ltd manages USB to serial conversion The 2232 is factory configured to implement a JTAG SWD port synchronous serial on channel A and a Virtual COM Port VCP on channel B This feature allows two simultaneous communications links between the host computer and th
11. LX ez 3 aa yp OU isnaaa gt T 20 5 M ssnada 5944 SF 1 so EE OMS XL dON OMS XI IDA XA wro gre vanis ssng v ic ili HSNHSA SaoWbad lt aqgsn EE WISNOSG nassa Was B 7HIN 001 283 osnadv ZHIN 00 DTI MAAA MOLE MOL Olay SIAF 9er HE TOVADA NIN ASA CF Attt Figure A 2 29 January 6 2010 LM3S811 Microcontroller sheet 3 of 3 Figure A 3 eus uequinw 1u uinoog eus 4exe dninyy abed 11 857 au SLNAWNYLSN SVXAL ee VOTIOATIPLNS do VSCIOATIPLN go gon gt ATE VSTIOATPLNS 091 9TA 3L cx lt XL ADA gt 4 V9CIOAIFLNS aea TT T VSZIOATILNS gen V9CIOATFLNS 368 n c OMS OGLX Id SEA 6 s OMS V9CIOATFLNS gen T 5 T VSTIDATPLNS T von c V9CIONTFLNS ven OIGMS S
12. M3S811 Evaluation Kit For your convenience these instructions are summarized below Powering the Board The Stellaris LM3S811 Evaluation Board EVB is configured for immediate use To power the EVB use the USB cable supplied in the kit Connect the mini b smaller end of the USB cable to the connector labeled USB on the EVB Connect the other end Type A to a free USB port on your host PC The USB interface is capable of sourcing up to 500 mA for each attached device which is sufficient for the evaluation board If connecting the board through a USB hub it must be a powered hub When you plug in the EVB for the first time Windows starts the Found New Hardware Wizard The Stellaris LM3S811 Evaluation Kit Quickstart Guide steps through the process of installing drivers for the Stellaris LM3S811 Evaluation Board Installing the Drivers The Stellaris LM3S811 Evaluation Board requires several hardware drivers All drivers are located in the Tools Ftdi directory on the Software and Documentation CD Each time Windows requests a driver for this device point it to the Software and Documentation CD Driver Installation When the Found New Hardware Wizard starts Windows asks if it can connect to Windows Update to search for software Select No not this time and then click Next The Found New Hardware Wizard then asks you from where to install the software Select Install from a list or specific location Advanced and cli
13. Stellaris LM3S811 Evaluation Board User s Manual Xi TEXAS INSTRUMENTS EK LM3S811 05 Copyright 2006 2010 Texas Instruments Copyright Copyright 2006 2010 Texas Instruments Inc All rights reserved Stellaris and StellarisWare are registered trademarks of Texas Instruments ARM and Thumb are registered trademarks and Cortex is a trademark of ARM Limited Other names and brands may be claimed as the property of others Texas Instruments 108 Wild Basin Suite 350 P Austin TX 78746 http www ti com stellaris S Cortex Intelligent Processors by ARM e 24 ARM 2 January 6 2010 Stellaris amp LM3S811 Evaluation Board Revision History This table provides a summary of the document revisions September 2006 00 Initial release of doc to customers December 2006 01 Changed value in Table B 1 for Pad 11 January 2009 02 Changed value in Table 3 1 for User Push Switch Input August 2009 03 Changed branding from Luminary Micro to Texas Instruments September 2009 04 Changed display and display interface information January 2010 05 Added Code Composer Studio to list of support toolchains January 6 2010 3 January 6 2010 Stellaris LM3S811 Evaluation Board Table of Contents Chapter 1 Stellaris amp LM3S811 Evaluation Board U 9 Features cocco cere eoo iL EU tube nukapa Sukan 9 Block Diagra
14. TRST test reset signal This reset function is implemented as a command over JTAG SWD so this signal is not necessary January 6 2010 IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries Tl reserve the right to make corrections modifications enhancements improvements and other changes to its products and services at any time and to discontinue any product or service without notice Customers should obtain the latest relevant information before placing orders and should verify that such information is current and complete All products are sold subject to Tl s terms and conditions of sale supplied at the time of order acknowledgment TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance with Tl s standard warranty Testing and other quality control techniques are used to the extent TI deems necessary to support this warranty Except where mandated by government requirements testing of all parameters of each product is not necessarily performed TI assumes no liability for applications assistance or customer product design Customers are responsible for their products and applications using Tl components To minimize the risks associated with customer products and applications customers should provide adequate design and operating safeguards TI does not warrant or represent that any license either express or implied is granted under any TI patent right cop
15. WLX lt 94 D VSCIONTFINS asa AAMS SAL 9 VSTIIATPLNS s d ungga 2 STA E 7 15 VSCIONTIPINS Y lt KL VSTIOATIPLNS aen us lt MOLX January 6 2010 30 Connection Details This appendix contains the following sections Component Locations Evaluation Board Dimensions Breakout Pads and Recommended Connectors ARM Target Pinout Component Locations Figure B 1 Component Locations January 6 2010 C2 UA C20 C19 C23 C4 R14 R29 C27 U5 31 Evaluation Board Dimensions Evaluation Board Dimensions Figure B 2 Evaluation Board Dimensions Breakout Pads and Recommended Connectors LM3S811 EVB has 32 I O pads 6 power pads and a reset signal for a total of 39 pads Connection can be made by soldering wires directly to these pads or by using 0 1 pitch headers 32 and sockets Table B 1 I O Breakout Pads Pad No Description Pad No Description 1 BLANK 40 ADC3 2 PC7 CCP4 39 ADC2 3 PB5 CCP5 38 ADC1 4 PD6 Fault 37 5 4 36 GND 6 PAO UORx 35 PD4 CCPO 7 PA1 UOTx 34 PC5 CCP1 8 PA2 SSICIk 33 PD5 CCP2 9 PA3 SSIFss 32 PC6 CCP3 10 PA4 SSIRx 31 GND 11 PA5 SSITx 30 7 12 PD1 PWM1 29 PB4 CO January 6 2010 Table 1 Breakout Pads
16. alling the VCP Device 22 24 Starting da Det na ee Mie edit teste e ete Q tA u iS 24 amp u u Sa eea a aa aaaea aaen aaaea anet 27 Appendix B Connection Details l l u uuu uuu uuu uu u 31 Gompbonent LocatioriSuu 31 Evaluation Board 32 Breakout Pads and Recommended Connectors 32 ARM Target e e RATAA AREE RE 34 6 January 6 2010 Stellaris amp LM3S811 Evaluation Board List of Figures Figure 1 1 Evaluation Board Layout 9 Figure 1 2 LM3S811 Evaluation Board Block Diagram enne 10 Figure 3 1 ICD Interface eed d deine eec eda aede d DR indue 18 Figure 4 1 Check VCP Driver Installation ener enne nnne tenen 21 Figure 1 LM3S811 Microcontroller sheet 1 3 28 Figure 2 LM3S811 Microcontroller sheet 2 3 29 Figure A 3 LM3S811 Microcontroller sheet 30 Figure B 1 Component Locations
17. ation is a game in which you navigate a ship through an endless tunnel Use the potentiometer POT to move the ship up and down and the user pushbutton USER to fire a missile to destroy obstacles in the tunnel Score accumulates for survival and destroying obstacles The game lasts for only one ship the score displays at the end of the game Since the OLED display on the evaluation board has burn in characteristics similar to a CRT the application also contains a screen saver The screen saver only becomes active if two minutes have passed without the user pushbutton being pressed while waiting to start the game i e the screen saver never appears during game play An implementation of the Game of Life is run with a field of random data as the seed value After two minutes of running the screen saver the display turns off and the user LED blinks Exit either mode of screen saver Game of Life or blank display by pressing the user pushbutton USER Press the button again to start the game While the game is being played a running tally of the score is output through UARTO of the LM3S811 is connected to the FTDI s second serial channel This serial channel is available to Windows as a Virtual COM Port To view the score open up a terminal application such as HyperTerminal Connect using COM where is the number Windows has assigned the Virtual COM Port Set the serial connection to a baud rate of 115200 8 data bits no parit
18. ck Next Make sure the Documentation and Software CD that came with the evaluation kit is in your CD ROM drive Select Search for the best driver in these locations and check the Search removable media floppy CD ROM option Click Next A warning pops up during the Hardware Installation click Continue Anyway Windows now finishes installing the drivers for Stellaris Evaluation Board A When the driver install is finished a window appears Click Finish to close the dialog box Completing Driver Installation You have just installed the drivers for Stellaris Evaluation Board A The USB device built into the EVB is a composite USB device After you click Finish a new Found New Hardware Wizard window appears asking to install drivers for another device This is for the Stellaris Evaluation Board part of the composite USB device Follow the same instructions as above to install the drivers for this device The Found New Hardware Wizard appears one last time This is to install the drivers for the Stellaris Virtual COM Port Again follow the same instructions above to install the drivers for this device January 6 2010 13 Getting Started Now all of the hardware drivers for the LM3S811 Evaluation Board have been installed These drivers give the debugger access to the JTAG interface and the host PC access to the Virtual COM Port Running the Quickstart Application 14 The quickstart applic
19. e only requirement is that the correct Stellaris device is selected in the project configuration 18 January 6 2010 Stellaris LM3S811 Evaluation Board Features ICDI includes the following features Standard ARM 20 JTAG debug connector W USB 2 0 full speed interface allows JTAG SWD debug Compatible with leading ARM Integrated Development Environment IDE packages including Keil RVMDK Enabling ICDI Mode ICDI mode is enabled when the 20 pin JTAG SWD target cable is connected to an external target In this mode the on EVB LM3S811 microcontroller and OLED display are held in reset Applications can not be executed in the on EVB microcontroller when the EVB is connected as an ICDI device ARM Target Cable The evaluation kit includes a 3 inch target cable for connecting the EVB to an external target Cables up to 8 inch long can be used if required Target cable pin assignments are compatible with the ARM 20 pin standard see Table B 3 on page 34 The target board must have GND connections on even pins from 4 through 20 otherwise the ICDI is not enabled when the target is connected In this case there will be conflict between the JTAG SWD signals on the LM3S811evaluation board and the external Stellaris device When using the kit as an evaluation board do not make connections to the debug out connector Starting ICDI With the USB cable removed connect the EVB to a Stellaris microcontroller based targ
20. e target device using a single USB cable Separate Windows drivers for each function are provided on the Documentation and Software CD A small serial EEPROM holds the FT2232 configuration data The EEPROM is not accessible by the LM3S811 microcontroller For full details on FT2232 operation go to www ftdichip com USB to JTAG SWD The FT2232 USB device performs JTAG SWD serial operations under the control of the debugger Two 74LV125 hex buffers multiplex SWD and JTAG functions and provide direction control for the bi directional data line when working in SWD mode Virtual COM Port The Virtual COM Port VCP allows Windows applications such as HyperTerminal to communicate with UARTO on the LM3S811 over USB Once the FT2232 VCP driver is installed Windows assigns a COM port number to the VCP channel For more information see Using the Virtual COM Port on page 21 Organic LED Display The EVB features an Organic LED OLED graphics display with 96 x 16 pixel resolution OLED is a new technology that offers many advantages over LCD display technology Features RGS08096016BWO01 series display 96 columns by 16 rows 1 bit pixel monochrome High contrast typ 2000 1 Excellent brightness 100 cd m Fast response Control Interface The OLED display has built in controller IC 5501300 with synchronous serial and 2 interfaces 2 is used on the EVB as it only requires two microcontroller pins The OLED display
21. et board using the 20 pin JTAG SWD target cable included in the Stellaris LM3S811 Evaluation Kit The red stripe on the cable should match pin 1 on both the EVB debug out connector and the target When inserted correctly the polarizing tab on the connector fits into the slot on the EVB PCB so that the ribbon cable exits away from you Apply power to the target device and then connect the USB cable to the LM3S811 Evaluation Board The OLED display should not show any information If it does display an image then check the target JTAG SWD connections to ensure the on EVB LM3S811 microcontroller is being held in reset The Keil RVMDK is now be able to program and debug the target Stellaris microcontroller January 6 2010 19 Hardware Description 20 January 6 2010 Communications This chapter describes available communication for the LM3S811 microcontroller through the Virtual COM Port and the Windows application HyperTerminal Using the Virtual COM Port The Virtual COM Port VCP is a convenient way for Windows applications to communicate with UARTO on the LM3S811 microcontroller over USB It offers all the capabilities of a standard RS232 interface without an additional cable Confirming Driver Installation The VCP device driver is normally installed as part of the quickstart process Confirm that the VCP device driver is installed by doing the following 1 Connect the EVB to a PC using the USB cable supplied in the evaluat
22. ications 5 Use the Properties dialog box to set the Port Settings The quickstart application sends data at 115200 baud 8 data bits no parity 1 stop bit and no flow control Click OK 7 Properties Port Settings Bits per second 115200 Data bits 8 Parity Stop bits 1 f Flow conto OK Cancel Apply 6 HyperTerminal now starts When the quickstart game is played score data is visible in the terminal window Save the terminal settings when exiting HyperTerminal LM3S811 EVB HyperTerminal Bl x Edit View Cal Transfer Help detect 115200 8 N 1 SCROLL CAPS Capture Printecho j 26 January 6 2010 Schematics Schematics for the Stellaris LM3S811 Evaluation Board follow January 6 2010 27 LM3S811 Microcontroller sheet 1 of 3 Figure A 1 19995 MOTHS EQ ATI TCIH JequnNiueumg eas panoxddy qnoyeerg pue NOW Ava abed uveig LLSSEWT BUE Inoyealg 9282 XL ans PIIM 801 unsny 93v IL SINSIAQHISN SVXAL f N 9 lt Q Odi wan 055 pi 9 LP R Lat uopng 1950 94
23. iometer A thumbwheel potentiometer connects to Channel 0 of the Analog to Digital Converter ADC A padding resistor R7 sets the voltage range to 0 to 3 0 V This corresponds with the full scale range of the LM3S811 s 10 bit ADC The ADC input voltage increases with clockwise potentiometer rotation User LED A user LED D1 is provided for general use The LED is connected to PC5 CCP1 allowing the option of either GPIO or PWM control brightness control Refer to the Quickstart Application source code for an example of PWM control User Pushbutton A user pushbutton SW2 is provided for general use The switch interfaces to 4 of the LM3S811 Bypassing Peripherals The EVB s on board peripheral circuits require eight GPIO lines leaving up to 24 GPIO lines immediately available for connection to external circuits If all GPIO lines are needed then the on board hardware can be bypassed The EVB is populated with eight 0 ohm resistor jumpers which can be removed to isolate on board hardware January 6 2010 17 Hardware Description Important The quickstart application will not run if one or more jumpers are removed Table 3 1 Isolating On Board Hardware MCU Pin EVB Function To Isolate Remove Pin 33 PB2 I2CSCL I2C SCL to Display JP1 Pin 34 PB3 I2CSDA I2C SDA to Display JP2 Pin 17 PAO UORx VCP Receive Pin 18 PA1 U0Tx VCP Transmit JP4 Pin 1 ADCO ADC Input from Thumbwheel Po
24. ion kit 2 Open the Windows Device Manager by either holding down the Windows Key and pressing the Pause Break key or from the Start Menu selecting Control Panel and then clicking on the System Icon Select the Hardware Tab and click the Device Manager button In Device Manager scroll down until you see Ports COM amp LPT Click to expand this item You should see a device called Stellaris Virtual COM Port COM Figure 4 1 Check VCP Driver Installation Device Manager EIE Device Manager File Action View Help File Action View Help E amp 2 m 88 Network adapters Bg Network adapters 5 adapters adapters 27 Ports amp LPT 5 Ports amp LPT Communications Port Communications Port COM1 7 ECP Printer Port LPT1 7 ECP Printer Port LPT1 27 Stellaris Virtual COM Port COM Processors 8f Processors Smart card readers VCP Driver Installed VCP Device Missing The Windows operating system assigns the COM Port number automatically It may change if the EVB is reconnected If Device Manager does not show the Stellaris Virtual COM Port device or if there is a question mark by the device it will be necessary to install or reinstall the device driver January 6 2010 21 Communications Installing the VCP Device Driver When the EVB is first connected to a USB port Windows automatically starts a dr
25. iver installation wizard The following steps guide you through the installation wizard 1 Connect the EVB to an available USB port using the USB cable supplied in the kit In the Found New Hardware Wizard window select No not this time and click Next Found New Hardware Wizard Welcome to the Found New Hardware Wizard Windows will search for current and updated software by looking on your computer on the hardware installation CD or on the Windows Update Web site with your permission Read our privacy policy Windows connect to Windows Update to search for software Yes this time only Yes now and every time connect a device Click Next to continue 2 Select Install from a list or specific location Advanced and click Next Found New Hardware Wizard This wizard helps you install software for Stellaris Virtual COM Port If your hardware came with an installation CD lt 3 or floppy disk insert it now What do you want the wizard to do O Install the software automatically Recommended Install from a list or specific location Advanced Click Next to continue lt Back Next gt Cancel 22 January 6 2010 3 January 6 2010 Stellaris LM3S811 Evaluation Board Insert the Stellaris LM3S811 Evaluation Kit Documentation and Software CD in the CD ROM drive Select Search removable media floppy DR ROM and click Next Found New Hardware Wiza
26. n and power indicator LED Thumbwheel potentiometer for driving an Analog to Digital Converter ADC input Standard 20 pin JTAG debug connector for use as an In Circuit Debug Interface ICDI signal break out pads for hardware prototyping UARTO accessible through a USB Virtual COM Port VCP USB interface for all communication and power January 6 2010 9 Stellaris amp LM3S811 Evaluation Board Block Diagram Figure 1 2 LM3S811 Evaluation Board Block Diagram dill I O Signal Break out 0000000000 9999 99 9869 Nocon 0 JTAG SWD Output OLED Display USB Cable VO Signals ET 9 0 9 0 0 9 0 9 S 9 Signal Break out Evaluation Kit Contents The evaluation kit contains everything needed to develop and run applications for Stellaris microcontrollers including LM3S811 Evaluation Board EVB USB cable 20 JTAG SWD target cable m containing Asupported version of one of the following including a toolchain specific Quickstart guide Keil Microcontroller Development Kit MDK ARM AR Embedded Workbench Code Sourcery GCC development tools Code Red Technologies development tools Texas Instruments Code Composer Studio IDE Complete documentation Quickstart application source
27. rd Please choose your search and installation options S Search for the best driver in these locations Use the check boxes below to limit or expand the default search which includes local paths and removable media The best driver found will be installed Search removable media CD ROM Don t search will choose the driver to install Choose this option to select the device driver from a list Windows does not guarantee that the driver you choose wil be the best match for your hardware Windows locates the driver on the Documentation and Software CD and start installing the driver A warning dialog like the one below pops up Click Continue Anyway Hardware Installation The software you are installing for this hardware Stellaris Virtual COM Port has not passed Windows Logo testing to verify its compatibility with Windows me why this testing is important Continuing your installation of this software may impair or destabilize the correct operation of your system either immediately or in the future Microsoft strongly recommends that you stop this installation now and contact the hardware vendor for software that has passed Windows Logo testing Continue Anyway STOP Installation 23 Communications 5 VCP drivers are now installed Click Finish Found New Hardware Wizard Completing the Found New Hardware Wizard The wizard has finished installing the software for
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29. tentiometer JP5 Pin 14 GPIO PC4 User Push Switch Input JP6 Pin 29 GPIO PC5 User LED output JP7 Pin 48 GPIO PD7 OLED Power Enable JP8 Interfacing to the EVB An array of accessible signals makes it easy to interface the EVB to external circuits All LM3S811 I O lines except those with JTAG functions are brought out to 0 1 pitch pads For quick reference silk screened labels on the PCB show primary pin functions Table 1 on page 32 has a complete list of I O signals as well as recommended connectors Most LM3S811 signals are 5 V tolerant 5 V tolerant pins will not be damaged when connected to 5 V logic circuits It is recommended that datasheets be checked for compatibility when mixing logic types Refer to the LM3S811 datasheet for detailed electrical specifications Using the In Circuit Debugger Interface The Stellaris LM3S811 Evaluation Kit can operate as an In Circuit Debugger Interface ICDI ICDI acts as a USB to the JTAG SWD adaptor allowing debugging of any external target board that uses a Stellaris microcontroller Figure 3 1 ICD Interface Mode LM3S811 EVB JTAG SWD Stellaris Target Target Cable MCU Board MCU lt gt with IDE This LM3S811 is held debugger in reset The debug interface operates in either Serial Wire Debug SWD or full JTAG mode depending on the configuration in the debugger IDE The Keil RVMDK does not distinguish between normal Evaluation Board mode and ICDI mode Th
30. tm eite EE ueque Us 10 Evaluation 10 Evaluation Board Specifications 11 System Requirements edi 11 S pported Device REP 11 Features of the LM3S81 1 Microcontroller nennen 11 Chapter 2 Getting Started yu u SSS 13 Powering the BOGId eae e p pde edat 13 Installing the Drivers 13 Driver lAtOM err 13 Completing Driver Installation n n rasara 13 Running the Quickstart Application 14 Chapter 3 Hardware u u eese seen nn nunt nn assa u N ua aqa sss 15 EMS3S8141 Microcontrolleru s p tee tapete 15 0 m 15 Miei oO EN 15 Reset uuu A g 15 Power SUPPlY MEET 15 ER 15 USB Device Controller Functions rein Ert e rete tite 16 DEVICE Oveni W
31. y 1 stop bit and no flow control Important The quickstart application will not run if one or more jumpers are removed January 6 2010 Hardware Description This chapter provides the hardware description for the LM3S811 microcontroller including the peripherals included in the evaluation kit LM3S811 Microcontroller Device Overview The heart of the EVB is a Stellaris LM3S811 Cortex M3 based microcontroller The LM3S811 offers 64 KB flash memory 50 MHz operation a 4 channel ADC and a wide range of peripherals Refer to the LM3S811 data sheet order number DS LM3S811 for complete device details LM3S811 microcontroller is factory programmed with a quickstart demo program quickstart program resides in the LM3S811 on chip flash memory and runs each time power is applied unless ICDI mode is in use or the quickstart has been replaced with a user program Clocking Reset A single external 6 0 Mhz crystal drives the LM3S811 microcontroller All required internal clocks are generated automatically within the device The LM3S811 microcontroller is designed to run the ARM Cortex core at 50 Mhz on this evaluation board The LM3S811 microcontroller shares its external reset input with the OLED display Reset is asserted Active Low under any one of the following conditions Power on reset duration set by resistor R1 and capacitor C2 Reset switch SW2 is held down mode By the US
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