Texas Instruments RM46 User manual

RM46 Hercules Development Kit (HDK)

User's Guide

Literature Number: SPNU566A

September 2012–Revised September 2013

Contents

Preface ....................................................................................................................................... 4

1 Introduction ........................................................................................................................ 5

1.1 Scope of Document ......................................................................................................... 5

1.2 RM46 HERCULES Development Kit (HDK) Features ................................................................. 5

1.3 HDK Board Block Diagram ................................................................................................ 6

1.4 RM46 HDK Contents ....................................................................................................... 6

1.5 HDK Specifications ......................................................................................................... 7

1.6 Basic Operation ............................................................................................................. 7

1.7 Memory Map ................................................................................................................. 7

1.8 Power Supply ................................................................................................................ 7

2 Physical Description ............................................................................................................ 8

2.1 Board Layout ................................................................................................................ 8

2.2 Connectors ................................................................................................................... 9

2.2.1 20-Pin ARM JTAG Header ...................................................................................... 10

2.2.2 Ethernet Interface ................................................................................................ 10

2.2.3 CAN Interface ..................................................................................................... 11

2.2.4 J19, MIPI ETM Connector ....................................................................................... 12

2.2.5 J7, XDS100V2 USB JTAG Interface ........................................................................... 13

2.2.6 P1, +5 V to +12 V Input .......................................................................................... 13

2.2.7 J18, USB Host Connector ....................................................................................... 13

2.2.8 J16, USB Device Connector .................................................................................... 13

2.2.9 SCI Interface ...................................................................................................... 13

2.2.10 Daughter Card Interface ........................................................................................ 14

2.3 LEDs ........................................................................................................................ 17

2.4 S2 DIP Switch .............................................................................................................. 17

2.5 Jumpers ..................................................................................................................... 18

2.6 S4, Power On Reset Switch ............................................................................................. 18

2.7 S3, System Reset Switch ................................................................................................ 18

A Operation Notices .............................................................................................................. 19

2Contents SPNU566A–September 2012–Revised September 2013

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List of Figures

1-1. RM46 HDK Board Block Diagram ........................................................................................ 6

2-1. RM46 HDK Board, Interfaces Top Side.................................................................................. 8

2-2. Connectors on RM46 HDK ................................................................................................ 9

2-3. CAN Bus Termination..................................................................................................... 11

2-4. J2, J3 CAN Bus Interface (Screw Terminal)........................................................................... 11

2-5. J19, 60 Pin MIPI ETM Header........................................................................................... 12

2-6. +12 V Input Jack........................................................................................................... 13

2-7. J9, J10, and J11 on HDK................................................................................................. 14

2-8. DIP Switch Settings ....................................................................................................... 17

List of Tables

1-1. RM46 Memory Map......................................................................................................... 7

1-2. Power Test Points .......................................................................................................... 7

2-1. Connectors on HDK Board............................................................................................... 10

2-2. 20-Pin ARM JTAG Header............................................................................................... 10

2-3. J1, Ethernet Interface..................................................................................................... 11

2-4. J19, MIPI Connector Signal Mapping................................................................................... 12

2-5. J7, XDS100V2 USB JTAG Interface.................................................................................... 13

2-6. Expansion Connector P1 (J9, Left, BottomView)...................................................................... 14

2-7. Expansion Connector P2 (J10, Right, BottomView) .................................................................. 15

2-8. Expansion Connector P3 (J11, Bottom One, TopView).............................................................. 16

2-9. Demo LEDs ................................................................................................................ 17

2-10. Other LEDs as Indicator.................................................................................................. 17

2-11. S2 DIP Switch Functions ................................................................................................. 18

2-12. Jumpers..................................................................................................................... 18

SPNU566A–September 2012–Revised September 2013 List of Figures

Preface

SPNU566A–September 2012–Revised September 2013

Read This First

About This Manual

This document describes the board level operations of the RM46 Hercules™ Development Kit (HDK). The

HDK is based on the Texas Instruments RM46L852 Microcontroller. The RM46 HDK is a table top card

that allows engineers and software developers to evaluate certain characteristics of the RM46L852

microcontroller to determine if the microcontroller meets the designer’s application requirements as well as

begin early application development. Evaluators can create software to execute on board or expand the

system in a variety of ways.

Notational Conventions

This document uses the following conventions.

The RM46 HDK will sometimes be referred to as the HDK.

Program listings, program examples, and interactive displays are shown in a special italic typeface. Here

is a sample program listing:

• equations

• !rd = !strobe&rw

Information About Cautions

This book may contain cautions.

This is an example of a caution statement.

A caution statement describes a situation that could potentially damage your software, or hardware, or

other equipment. The information in a caution is provided for your protection. Please read each caution

carefully.

Related Documentation From Texas Instruments

Information regarding this device can be found at the following Texas Instruments website:

http://www.ti.com/rm4

Hercules, Code Composer Studio are trademarks of Texas Instruments.

ARM is a registered trademark of ARM Limited.

All other trademarks are the property of their respective owners.

4Read This First SPNU566A–September 2012–Revised September 2013

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Chapter 1

SPNU566A–September 2012–Revised September 2013

Introduction

This development kit provides a product-ready hardware and software platform for evaluating the

functionality of the Texas Instruments RM46 microcontroller family. Schematics, list of materials, and PCB

layout are available to ease hardware development and reduce time to market.

1.1 Scope of Document

This user's guide lists the contents of the development kit, points out the features of the major

components, and provides the instructions necessary to verify your development kit is in working order.

Any additional usage instructions or details fall outside the scope of this document. Additional resources

will be listed at the end of this user's guide.

1.2 RM46 HERCULES Development Kit (HDK) Features

The HDK comes with a full complement of on board devices that suit a wide variety of application

environments. Key features include:

• A Hercules RM46L852 337-pin BGA microcontroller

• Integrated USB JTAG Emulator (XDS100v2)

• External JTAG Headers (ARM®20 pin and TI Compact 20-pin CTI)

• 10/100 Mbps Ethernet interface

• One USB host connector and one USB device connector

• Two CAN transceivers (SN65HVDA541Q1) and screw terminal blocks

• One ambient light sensor

• One ambient temperature sensor

• Microcontroller’s serial communication interface (SCI) universal asynchronous receiver/transmitter

(UART) accessible through a USB virtual COM port

• One 8MB SDRAM

• Eight user programmable white LEDs around the MCU silicon

• One user programmable pushbutton

• Three expansion connectors for hardware prototyping

• Reset pushbuttons (nPORRST and nRST)

• One SD card slot (SPI mode)

• Embedded trace macrocell (ETM) debug interface via MIPI connector

• Configurable pin mux options

• 5 V and 3.3 V analog-to-digital converter (ADC) option jumper

• Current measurement capability for 3.3 V IO, 1.2 V core, 1.2 V core, 1.2 V PLL, 3.3 V or 5 V ADC, and

3.3 V VCCP

• Accepts an external power supply between +5V and +12V

SPNU566A–September 2012–Revised September 2013 Introduction

SDRAM

CAN1

ETM

SPI/ADC

JTAG

POR

RST

PWR

USB

EMU

EXP Conn1

SPI2

Slot

XDS100V2

CPLD

FTDI

2332

Ext JTAG

EMIF/

ETM/

SPI2

ENET

RJ45

ENET

PHY

MII/

RMII

CAN

PHY

EXP Conn2

EXP Conn3

Pinmux

DIP

PIN MUX

RM46L852

220 MHz

PIN MUX

CAN/

FRAY/LIN/

GIO/HET

Light

Sensor

Temp

Sensor

CAN2

CAN

PHY

GIO

Button

3.3V/5V A/D 3.3V I/O

1.2V Core

USB

PHY

USBH

USB

PHY

USB-D

HDK Board Block Diagram

www.ti.com

1.3 HDK Board Block Diagram

Figure 1-1 illustrates the HDK block diagram.

Figure 1-1. RM46 HDK Board Block Diagram

1.4 RM46 HDK Contents

The kit contains everything needed to develop and run applications for RM46L852 microcontrollers

including:

• Board:

– RM46 Card

• Cables and Accessories

– 12 V power supply with power adapters for US, or Europe

– Type A to mini B USB cable for using on board XDS100V2 JTAG emulator

– Ethernet cable

– Flashlight for light sensor demo

• CCS DVD Containing:

– Texas Instruments’ Code Composer Studio™ Integrated Development Environments (IDE)

• Hercules DVD Containing:

– Hercules Safety Demos

– Hardware Abstraction Layer Code Generator (HALCoGen)

– Training Videos

– Device Documentation

6Introduction SPNU566A–September 2012–Revised September 2013

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HDK Specifications

1.5 HDK Specifications

• Board supply voltage: 5 V–12 V Vdc

• Board supply current: 130 mA typ (fully active, CPU at 220 MHz)

• Dimensions: 4.90” x 4.30” x 0.85” (LxWxH)

1.6 Basic Operation

The HDK is designed to work with TI’s Code Composer Studio and other third party ARM IDEs. The IDE

communicates with the board through the embedded emulator or an external JTAG emulator. To start,

follow the instructions in the Quick Start Guide to install Hercules-specific software. This process will install

all of the necessary development tools, documentation and drivers.

1.7 Memory Map

The RM46 family of MCUs have a large byte addressable address space. Table 1-1 shows the address

space of a RM46L852 microcontroller on the left with specific details of how each region is used by the

HDK on the right. By default, the internal memory sits at the beginning of the address space.

The SDRAM is mapped into CS0 space on the EMIF. CS[4:2] are used for synchronous memory for

example SRAM, NOR Flash, NAND Flash, and so forth.

Table 1-1. RM46 Memory Map

Start Address End Address HDK

0x0000 0000 0x002F FFFF Flash

0x0800 0000 0x0803 FFFF RAM

0x0840 0000 0x0843 FFFF RAM-ECC

0x6000 0000 0x63FF FFFF CS2 Async RAM

0x6400 0000 0x67FF FFFF CS3 Async RAM

0x6800 0000 0x7BFF FFFF CS4 Async RAM

0x8000 0000 0x87FF FFFF CS0 Sync SDRAM

1.8 Power Supply

The HDK board operates from a single +12 V external power supply connected to the main power input

(P1), a 2.5 mm, barrel-type plug. Internally, the +12 V input is converted into +1.2 V, +3.3 V and +5.0 V

using Texas Instruments swift voltage regulators and PTH power module. The +1.2 V supply is used for

the MCU core while the +3.3 V supply is used for the MCU's I/O buffers and other module on the board.

The +5.0 V supply is used for ADC power (second option) and USB VBUS.

There are multiple power test points on the HDK board. The three main test point pairs provide a

convenient mechanism to check the HDK’s current for each supply. Table 1-2 shows the voltages for each

test point and what the supply is used for.

Table 1-2. Power Test Points

Test Point Pair Voltage Voltage Use

TP14 and TP15 1.2 V MCU core

TP16 and TP17 3.3 V MCU IO and logic

TP18 and TP19 1.2 V MCU PLL

TP20 and TP21 3.3 V MCU Flash pump

TP22 and TP23 3.3 V or 5.0 V MCU MibADC, and ADREFHI

(J8 to enable 5 V)

SPNU566A–September 2012–Revised September 2013 Introduction

Hercules

RM46L852

Chapter 2

SPNU566A–September 2012–Revised September 2013

Physical Description

This section describes the physical layout of the RM46 HDK board and its interfaces.

2.1 Board Layout

The RM46 HDK board is a 4.9 x 4.3 inch (125 x 109 mm) eight layer printed circuit board that is powered

by an external +5 V to approximately +12 V only power supply. Figure 2-1 shows the layout of the RM46

HDK board.

Figure 2-1. RM46 HDK Board, Interfaces Top Side

8Physical Description SPNU566A–September 2012–Revised September 2013

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J2 J3

J15

J12

J19

J10

J11

J16

J17

J18

RM46L852

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Connectors

2.2 Connectors

The HDK board has 16 interfaces to various peripherals. These interfaces are described in the following

sections.

Figure 2-2. Connectors on RM46 HDK

SPNU566A–September 2012–Revised September 2013 Physical Description

Connectors

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Table 2-1. Connectors on HDK Board

Connector Size Function

J1 RJ45 Ethernet

J2 3 terminal, 2.54mm DCAN1

J3 3 terminal, 2.54mm DCAN2

J4 10x2, 2.54mm ARM 20pin JTAG header

J6 19x2, mictor RTP

J7 4pin, Mini-B USB XDS100V2 USB

J9 33x2, 2mm Exp P1, SPI1, SPI5, ADC

J10 33x2, 2mm EXP P2, SPI2, EMIF, ECLK

J11 40x2, 2mm EXP P3, SPI3, GIO, NHET, DCAN, LIN

J12 19x2, mictor DMM

J15 SD card

J16 4pin, Type B USB Device

J17 4pin, Type A Not Populated

J18 4pin, Type A USB Host

J19 30x2, MIPI ETM MIPI Header

P1 2.5mm +12 V In

2.2.1 20-Pin ARM JTAG Header

In addition to on board XDS100V2 JTAG, one 20-pin ARM JTAG header is added for using external

emulator. This is the standard interface used by JTAG emulators to interface to ARM microcontrollers. The

pinout for the connector is shown in Table 2-2.

Table 2-2. 20-Pin ARM JTAG Header

Signal Name Pin Number Pin Number Signal Name

Vref 1 2 VCC

nTRST 3 4 GND

TDI 5 6 GND

TMS 7 8 GND

TCK 9 10 GND

RTCK 11 12 GND

TDO 13 14 GND

nRST 15 16 GND

NC 17 18 GND

NC 19 20 GND

2.2.2 Ethernet Interface

The RM46L852 integrates an MII/RMII Ethernet MAC on chip. This interface is routed to the on board

PHY via CBT switches. The board uses a DP83640 PHY. The interface is isolated and brought out to a

RJ-45 connector with integrated magnetics, J1. The pinmux control DIP S2 is used to control the CBT FET

switch for RMII, MII or other functions.

The J1 connector is used to provide a 10/100 Mbps Ethernet interface. This is a standard RJ-45

connector. The cable end pinout for the J1 connector is shown in Table 2-3.

10 Physical Description SPNU566A–September 2012–Revised September 2013

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