Texas Instruments Stellaris LM3S1968 User Manual Download Page 6 | Manualshive

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January 6, 2010

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Summary of Contents for Stellaris LM3S1968

Page 1: ...EK LM3S1968 03 Copyright 2007 2010 Texas Instruments User s Manual Stellaris LM3S1968 Evaluation Board ...

Page 2: ...is 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 Austin TX 78746 http www ti com stellaris ...

Page 3: ... the LM3S1968 Microcontroller 9 Chapter 2 Hardware Description 11 LM3S1968 Evaluation Board 11 LM3S1968 Microcontroller Overview 11 Hibernation Module 11 Clocking 11 Reset 11 Power Supplies 12 Debugging 12 USB Device Controller Functions 13 USB Overview 13 USB to JTAG SWD 13 Virtual COM Port 13 Serial Wire Out 14 Organic LED Display 14 Virt ual CO 5 8 M Port 78 1 5 8 5 8 5 8 5 8 5 8 5 8 5 7 3 34 5...

Page 4: ...Table 2 1 Stellaris LM3S1968 Evaluation Board Hardware Debugging Configurations 12 Table 2 2 Isolating On Board Hardware 15 Table B 1 I O Breakout Pads 27 Table B 2 Recommended Connectors 28 Table B 3 20 Pin JTAG SWD Configuration 28 ...

Page 5: ...010 5 List of Figures Figure 1 1 Stellaris LM3S1968 Evaluation Board Layout 7 Figure 1 2 LM3S1968 Evaluation Board Block Diagram 8 Figure 2 1 ICD Interface Mode 16 Figure B 1 Component Locations 25 Figure B 2 LM3S1968 Evaluation Board Dimensions 26 ...

Page 6: ...6 January 6 2010 ...

Page 7: ...face mode the on board microcontroller is disabled allowing connection of the debug signals to an external Stellaris microcontroller target The kit is also compatible with high performance external JTAG debuggers This evaluation kit enables quick evaluation prototype development and creation of application specific designs using the LM3S1968 s broad range of peripherals The kit also includes exten...

Page 8: ...lay with 128 x 96 pixel resolution User LED navigation switches and select pushbuttons 8Ω magnetic speaker with class D amplifier Internal 3 V battery and support for on chip hibernation module USB interface for debugging and power supply Standard ARM 20 pin JTAG debug connector with input and output modes LM3S1968 I O available on labeled break out pads Block Diagram Figure 1 2 LM3S1968 Evaluatio...

Page 9: ...rted version of one of the following including a toolchain specific Quickstart guide Keil RealView Microcontroller Development Kit MDK ARM IAR Embedded Workbench Code Sourcery GCC development tools Code Red Technologies development tools Texas Instruments Code Composer Studio IDE Complete documentation Quickstart application source code Stellaris Firmware Development Package with example source co...

Page 10: ...grated analog comparators Two I2 C modules Three PWM generator blocks One 16 bit counter Two comparators Produces two independent PWM signals One dead band generator Two QEI modules with position integrator for tracking encoder position 5 to 52 GPIOs depending on user configuration On chip low drop out LDO voltage regulator Hibernation module ...

Page 11: ...y 50 MHz operation and a wide range of peripherals Refer to the LM3S1968 data sheet order number DS LM3S1968 for complete device details The LM3S1968 microcontroller is factory programmed with a quickstart demo program The quickstart program resides in the LM3S1968 on chip Flash memory and runs each time power is applied unless the quickstart has been replaced with a user program Hibernation Modul...

Page 12: ...are not required in typical applications Power Supplies In normal operating mode the LM3S1968 is powered from a 3 3 V supply A low drop out LDO regulator converts 5 V power from the USB cable to 3 3 V 3 3 V power is available for powering external circuits If 5 V is removed the Hibernation module will remain powered by the 3 V lithium battery Other microcontroller and board functions will not func...

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Page 14: ... display has a built in controller IC with synchronous serial and parallel interfaces Synchronous serial SSI is used on the EVB as it requires fewer microcontroller pins Data cannot be read from the OLED controller only one data line is necessary The Stellaris Firmware Development Package included on the Documentation and Software CD contains complete drivers with source code for the OLED display ...

Page 15: ...WM3 is used the non PWM signal should be configured as a general purpose output For increased speaker volume PWM2 and PWM3 can be configured as complementary drive signals In tone mode be careful to avoid large DC currents in the speaker Waveform mode uses two high frequency PWM signals to drive a MOSFET H bridge with an output filter This circuit is essentially a Class D amplifier The symmetrical...

Page 16: ... 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 See Debugging Modes on page 12 for a description of how to enter Debug Out mode Figure 2 1 ICD Interface Mode Pin 29 PA3 SSI0FSS OLED display chip select JP5 Pin 37 PG6 PHA1 Right switch JP6 Pin 36 PG7 PHB1 Select switch JP7 Pin 40 PG5 Left switc...

Page 17: ...e debug SWD or full JTAG mode depending on the configuration in the debugger IDE The IDE debugger does not distinguish between the on EVB Stellaris microcontroller and an external Stellaris microcontroller The only requirement is that the correct Stellaris device is selected in the project configuration ...

Page 18: ...Hardware Description 18 January 6 2010 ...

Page 19: ...r the LM3S1968 Evaluation Board LM3S1968 Microcontroller on page 20 OLED Display Switches and Audio on page 21 USB and Debugger Interfaces on page 22 USB Debugger Interfaces and Power on page 23 JTAG Logic with Auto Mode Detect and Hibernate on page 24 A P P E N D I X A ...

Page 20: ...v Sheet Date of 3 4 2008 1 4 Drawing Title Page Title Size Stellaris LM3S1968 Evaluation Board LM3S1968 Microcontroller B B EK LM3S1968 Revision Date Description 0 8 9 07 Final prototype release History INT_TCK TMS SWDIO PC2 TDI PC3 TDO SWO ADC3 ADC2 ADC1 ADC0 ...

Page 21: ...OLED Graphics Display Status LEDs User Switches 3 3V C17 4 7UF SW2 SW B3S1000 SW3 SW B3S1000 SW4 SW B3S1000 SW5 SW B3S1000 SW6 SW B3S1000 MCURSTn OLEDDC LED1 Green LED2 Red LED3 Green C18 OMIT 15V OLEDCSn C19 0 1UF NC 1 VCIR 2 VCOMH 3 LVSS 4 VSS 5 BS1 6 BS2 7 IREF 8 CSn 9 RESn 10 D Cn 11 R Wn 12 E 13 D0 SCLK 14 D1 SDIN 15 D2 16 D3 17 D4 18 D5 19 D6 20 D7 21 VDDIO 22 VDD 23 VCC 24 NC 25 U2 OLED RIT...

Page 22: ...1 1 2 2 3 3 4 4 5 5 6 6 D D C C B B A A Document Number Rev Sheet Date of 3 4 2008 3 4 Drawing Title Page Title Size ...

Page 23: ...is LM3S1968 Evaluation Board USB Debugger Interfaces and Power B B EK LM3S1968 DBG 3 3V Debugger 3 3V 200mA Power Supply 5V C23 4 7UF C24 4 7UF 15V 50mA Power Supply for OLED Display 15V FB 3 VIN 5 SHDNn 4 GND 2 SW 1 U5 FAN5331 5V C30 4 7UF C31 4 7UF D1 MBR0520 120pF C29 R13 200K R14 17 8K EN 15V R15 10K 10uH L3 NR4018T100M ...

Page 24: ...A B C D E F G H A B C D E F G H 1 2 3 4 5 6 7 8 1 2 3 4 5 6 7 8 I102 I100 C D Q I96 I105 I104 I36 I35 I18 A B S I89 A B S I85 A B S I17 A B S I106 33 I86 44 I2 21 I107 38 I70 7 ...

Page 25: ...ection Details This appendix contains the following sections Component Locations Evaluation Board Dimensions I O Breakout Pads ARM Target Pinout References Component Locations Figure B 1 Component Locations A P P E N D I X B ...

Page 26: ...Evaluation Board Dimensions 26 January 6 2010 Evaluation Board Dimensions Figure B 2 LM3S1968 Evaluation Board Dimensions ...

Page 27: ...Description Pad No Description Pad No Description Pad No PB4 C0 1 PB1 CCP2 18 PA6 I2C1SCL 35 PG3 52 GND 2 PB0 CCP0 19 PA7 I2C1SDA 36 PD1 PWM1 53 PB5 C1 3 GND 20 PA4 SSI0RX 37 PD2 U1RX 54 PB6 C0 4 PF1 IDX1 21 PA5 SSI0TX 38 GND 55 PB7 TRST 5 PF2 PWM4 22 PA2 SSI0CLK 39 PD0 IDX0 56 PH0 PWM2 6 PF3 PWM5 23 PA3 SSI0FSS 40 ADC3 57 PH1 PWM3 7 PF4 C0O 24 PA0 U0RX 41 GND 58 PH2 8 HIBn 25 PA1 U0TX 42 ADC1 59 ...

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Page 29: ...Order number SW DRL StellarisWare Driver Library User s Manual publication number SW DRL UG Stellaris LM3S1968 Data Sheet publication DS LM3S1968 Additional references include Solomon Systech SSD0323 OLED Controller Datasheet Future Technology Devices Incorporated FT2232C Datasheet Information on development tool being used RealView MDK web site www keil com arm rvmdkkit asp IAR Embedded Workbench...

Page 30: ...References 30 January 6 2010 ...

Page 31: ...ques 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 TI components To minimize the risks associated with customer ...

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