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Texas Instruments Stellaris LM3S6965 Скачать руководство пользователя страница 13

Stellaris® LM3S6965 Evaluation Board

January 6, 2010

13

documentation for full details. However, if your debugger interface does not have a selectable
power source, it may be necessary to install a 0-

Ω

resistor on the evaluation board to route power

to pin 1. Refer to the schematics and board drawing in the appendix of this manual for the location
of this resistor.

USB Device Controller Functions

Device Overview

An FT2232 device from Future Technology Devices International Ltd manages USB-to-serial
conversion. The FT2232 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 the 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 LM3S6965 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.
A CPLD (U2) multiplexes SWD and JTAG functions and, when working in SWD mode, provides
direction control for the bidirectional data line.

Virtual COM Port

The Virtual COM Port (VCP) allows Windows applications (such as HyperTerminal) to
communicate with

UART0

on the LM3S6965 over USB. Once the FT2232 VCP driver is installed,

Windows assigns a COM port number to the VCP channel.

Serial Wire Out

The evaluation board supports the Cortex-M3 serial-wire output (SWO) trace capabilities. Under
debugger control, the CPLD can route the SWO datastream to the virtual communication port
(VCP) transmit channel. The debugger can then decode and interpret the trace information
received from the VCP. The normal VCP connection to

UART0

is interrupted when using SWO. Not

all debuggers support SWO. Refer to the Stellaris LM3S6965 data sheet for additional information
on the trace port interface unit (TPIU).

Organic LED Display

The EVB features an organic LED (OLED) graphics display with 128 x 96 pixel resolution. OLED is
a new technology that offers many advantages over LCD display technology.

Features

RiT P14201 series display

128 columns by 96 rows

High-contrast (typ. 500:1)

Excellent brightness (120 cd/m

2

)

Fast 10 us response

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Содержание Stellaris LM3S6965

Страница 1: ...EK LM3S6965 06 Copyright 2007 2010 Texas Instruments User s Manual Stellaris LM3S6965 Evaluation Board ...

Страница 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 ...

Страница 3: ...USB Device Controller Functions 13 Device Overview 13 USB to JTAG SWD 13 Virtual COM Port 13 Serial Wire Out 13 Organic LED Display 13 Features 13 Control Interface 14 Power Supply 14 Design Guidelines 14 Further Reference 14 Other Peripherals 14 Speaker 14 MicroSD Card Slot 14 Push Switches 14 User LED 15 Bypassing Peripherals 15 Interfacing to the EVB 15 Using the In Circuit Debugger Interface 1...

Страница 4: ... Figures Figure 1 1 Stellaris LM3S6965 Evaluation Board Layout 7 Figure 1 2 LM3S6965 Evaluation Board Block Diagram 8 Figure 2 1 ICD Interface Mode 16 Figure B 1 Component Locations 23 Figure B 2 Evaluation Board Dimensions 24 ...

Страница 5: ... 5 List of Tables Table 2 1 Stellaris LM3S6965 Evaluation Board Hardware Debugging Configurations 12 Table 2 2 Isolating On Board Hardware 15 Table B 1 I O Breakout Pads 25 Table B 2 Recommended Connectors 25 Table B 3 20 Pin JTAG SWD Configuration 26 ...

Страница 6: ...6 January 6 2010 ...

Страница 7: ...ramming or debugging of an external 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 for Ethernet networks The kit also includes extensive source code examples allowing you to start building C code applications quickly Figure 1 1 Stellaris LM3S6965 Evaluati...

Страница 8: ...shbuttons Magnetic speaker LM3S6965 I O available on labeled break out pads Standard ARM 20 pin JTAG debug connector with input and output modes USB interface for debugging and power supply MicroSD card slot Block Diagram Figure 1 2 LM3S6965 Evaluation Board Block Diagram USB USB Stellaris LM3S6965 Microcontroller Dual USB Device Controller I O Signals OLED Display 128 x 96 Debug Nav Switch Switch...

Страница 9: ... code Stellaris Firmware Development Package with example source code Evaluation Board Specifications Board supply voltage 4 37 5 25 Vdc from USB connector Board supply current 250 mA typ fully active CPU at 50 MHz Break out power output 3 3 Vdc 60 mA max 15 Vdc 15 mA max Dimensions 4 0 x 2 45 x 0 7 LxWxH RoHS status Compliant Features of the LM3S6965 Microcontroller 32 bit RISC performance using ...

Страница 10: ...ors 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 0 to 42 GPIOs depending on user configuration On chip low drop out LDO voltage regulator ...

Страница 11: ...e The RJ45 jack incorporates LEDs that indicate traffic and link status These are automatically managed by on chip microcontroller hardware Alternatively the LEDs can be software controlled by configuring those pins as general purpose outputs The LM3S6965 supports automatic MDI MDI X so the EVB can connect directly to a network or to another Ethernet device without requiring a cross over cable Clo...

Страница 12: ...vision D or later automatically configure pin 1 to be a 3 3 V reference if an external debugger is connected To determine the revision of your board locate the product number on the bottom of the board for example EK LM3S6965 D The last character of the product number identifies the board revision A configuration or board level change may be necessary when using an external debug interface with re...

Страница 13: ...SB device performs JTAG SWD serial operations under the control of the debugger A CPLD U2 multiplexes SWD and JTAG functions and when working in SWD mode provides direction control for the bidirectional data line Virtual COM Port The Virtual COM Port VCP allows Windows applications such as HyperTerminal to communicate with UART0 on the LM3S6965 over USB Once the FT2232 VCP driver is installed Wind...

Страница 14: ... 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 RiT OLED display visit www ritekdisplay com Other Peripherals Speaker A small magnetic audio transducer connects through a MOSFET to PD1 PWM1 allowing a range of options for generating...

Страница 15: ...rfacing to the EVB An array of accessible I O signals makes it easy to interface the EVB to external circuits All LM3S6965 I O lines except those with both JTAG and SWD functions are brought out to 0 1 pitch pads For quick reference silk screened labels on the PCB show primary pin functions Table B 1 on page 25 has a complete list of I O signals as well as recommended connectors Table 2 2 Isolatin...

Страница 16: ...n of how to enter Debug Out mode Figure 2 1 ICD Interface Mode The debug interface operates in either Serial Wire 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 proje...

Страница 17: ... schematics for the LM3S6965 evaluation board LM3S6965 Micro and 10 100 Ethernet on page 18 OLED Display Switches and Audio on page 19 USB Debugger Interfaces and Power on page 20 JTAG Logic with Auto Mode Detect and Hibernate on page 21 A P P E N D I X A ...

Страница 18: ...SSI0TX PA7 I2CSDA PB4 C0 PD5 CCP2 PD7 CCP1 ADC0 ADC2 PD1 PWM1 PD3 U1TX PG0 U2RX PC6 CCP3 PC4 PhA0 PA0 U0Rx PA2 SSI0CLK PA4 SSI0RX PA6 I2CSCL 3 3V 5V 15V PB5 C1 PB6 C0 PB7 TRST PC2 TDI PC3 TDO PE3 PhA1 PE2 PhB1 PE0 PWM4 PE1 PWM5 PB2 I2C0SCL PB3 I2CSDA PB1 PWM3 PF1 IDX1 PB0 PWM2 PF3 LED0 PF2 LED1 OSC32OUT OSC32IN 3 3V PF0 PWM0 I O Break out Headers R33 10K 3 3V 1 2 Y3 8 00MHz 18PF C40 18PF C41 A 5 1...

Страница 19: ... microSD Card Slot 1 2 3 4 5 6 7 8 9 10 11 12 P3 2908 05WB MG 3 3V C28 0 1UF 3 3V CARDCSn SSITX SSICLK SSIRX R17 10K R19 10K 3 3V 3 3V 1 2 BZ1 NFT 03A LED2 Green LED3 Red LED4 Green C30 OMIT R14 200K SSITX SSICLK 3 3V 128x96 OLED Graphics Display C26 4 7UF MCURSTn OLEDDC 15V OLEDCSn C23 0 1UF C21 0 1UF RGS13128096WH000 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 ...

Страница 20: ...Power Supply R31 27 R29 27 R26 27 XTCK R28 27 VCP_RX VCP_TX TCK SWCLK PC2 TDI PC3 TDO TMS SWDIO C32 0 01UF 5V D D ID G 1 2 3 4 7 5 6 P1 54819 0519 3 3V SRSTN TARGETCABLEn XTDO R27 27 TP4 TP3 TP2 TP1 TP5 TP6 3 3V PLD JTAG TEST POINTS PLD_TCK PLD_TMS PLD_TDI PLD_TDO VOUT 4 SENSE 5 VIN2 6 GND 2 NC 3 GND 7 VIN1 1 U6 LP8345ILD 3 3 USB 5V R32 4 7K 3 3v Debug Interface Logic JP18 PC3 TDO TCK SWCLK TMS SW...

Страница 21: ...4 I91 10 I7 45 I37 3 I5 4 I4 48 I87 41 I8 40 I115 I9 I99 I111 I112 I95 I109 I20 FTDI_DBG DBGOUT VCP_TX ITCK SWO_EN FTDI_TCK XTCK FTDI_TDI_DO U0TX XTDO FTDI_TDO_DI JTAGEN FTDI_TMS XTDI JTAGEN FTDI_DBG FTDIJTAGEN SWDEN FTDI_SRSTn XTMS FTDI_DBG DBGOUT DBGLED INTDBG TEST TRSTn RSTSW MCURSTn RC EXTCABLEn TVCC HIBn DRVEN Sept 28 2007 JTAG Logic with Auto Mode Detect Hibernate and TVcc Control LM3S6965 E...

Страница 22: ...22 January 6 2010 ...

Страница 23: ... Connection Details This appendix contains the following sections Component Locations Evaluation Board Dimensions I O Breakout Pads ARM Target Pinout Component Locations Figure B 1 Component Locations A P P E N D I X B ...

Страница 24: ...ensions Figure B 2 Evaluation Board Dimensions I O Breakout Pads The LM3S6965 EVB has 44 I O pads 14 power pads and 2 crystal connections for a total of 60 pads Connection can be made by soldering wires directly to these pads or by using 0 1 pitch headers and sockets ...

Страница 25: ...7 ADC0 PC3 TDO 41 42 PE3 PHA1 ADC3 26 25 ADC2 PE2 PHB1 43 44 GND IDX0 24 23 GND PE0 PWM4 45 46 PE1 PWM5 PD2 U1RX 22 21 PD1 PWM1 PB2 SCL0 47 48 PB3 SDA0 PG1 U2TX 20 19 PD3 U1TTX PB1 PWM3 49 50 GND PC7 PHB0 18 17 PG0 U2RX PF1 IDX1 51 52 PB0 PWM2 PC5 C1 16 15 PC6 CCP3 PF3 LED0 53 54 PF2 LED1 GND 14 13 PC4 PHA0 GND 55 56 OSC32 3 3 V 12 11 PA0 U0RX GND 57 58 OSC32 PA1 U0TX 10 9 PA2 SSICLK PF0 PWM0 59 6...

Страница 26: ...ls are not necessary It is recommended that connections be made to all GND pins however both targets and external debug interfaces must connect pin 18 and at least one other GND pin to GND References In addition to this document the following references are included on the Stellaris LM3S6965 Evaluation Kit documentation CD ROM and are also available for download at www ti com stellaris Stellaris L...

Страница 27: ...n on development tool being used RealView MDK web site www keil com arm rvmdkkit asp IAR Embedded Workbench web site www iar com Code Sourcery GCC development tools web site www codesourcery com gnu_toolchains arm Code Red Technologies development tools web site www code red tech com Texas Instruments Code Composer Studio IDE web site www ti com ccs ...

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