Texas Instruments TMDXRM46HDK Hercules Development Kit TMDXRM46HDK TMDXRM46HDK 데이터 시트

제품 코드

TMDXRM46HDK

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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 180 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 TMS570LS12 family of MCUs have a large byte addressable address space.

Table 1-1

shows the

address space of a TMS570LS1227 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. TMS570LS12 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)

SPNU568A – September 2012 – Revised September 2013

Introduction

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