Datasheet

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HDK Specifications

1.5 HDK Specifications

• Board supply voltage: 5 V to 12 V DC

• Board supply current: 130 mA typ (fully active, CPU at 100 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 IDEs

communicate with the board through the embedded emulator or an external JTAG emulator. To get

started, 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 TMS570LS04 family of MCUs have a large byte addressable address space. Table 1-1 shows the

address space of a TMS570LS0432 microcontroller on the left with specific details of how each region is

used on the right. On-chip Flash memory starts at the beginning of the address space where the exception

vector table is located.

Table 1-1. TMS570LS0432 Memory Map

Start Address End Address HDK

0x0000 0000 0x0005 FFFF 384KB Flash

0x0800 0000 0x0800 7FFF 32KB RAM

0x0840 0000 0x0840 7FFF RAM-ECC

1.8 Power Supply

The HDK board operates from either +5V supplied from the USB connector (J4) or +5 V to +12 V supplied

from the power supply connected to the main power input (P1), a 2.5 MM, barrel-type plug. Internally, the

power input is converted into +1.2 V, +3.3 V using Texas Instruments voltage regulators. 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

component on the board.

The power used for operation is determined by the options listed in Table 1-2.

Table 1-2. Power Supply Selection

Power Used for USB VBUS (+5 V) Power From P1(5 V to 12 V)

the Board (USB Cable is Plugged or Not) (Power Cable is Plugged or Not)

From P1 ON ON

From P1 OFF ON

From VBUS ON OFF

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 1-3 shows the voltages for each

test point and what the supply is used for.

Table 1-3. Power Test Points

Test Point Pair Voltage Voltage Use

TP11 and TP12 1.2 V MCU core

TP3 and TP4 3.3 V MCU IO and logic

TP22 and TP23 3.3 V MCU ADC power

SPNU569–September 2012 Introduction

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