Freescale Semiconductor Kinetis K40 MCUs Manual de usuario

Kinetis K40 MCUs

Quick Start Guide

Low-power MCU with

USB and segment LCD

Tower System

Development Board

Platform

2 3

freescale.comQuick Start Guide

Get to Know the TWR-K40X256

Primary

Connector

Infra-Red

General Purpose

Tower Plug-In

(TWRPI) Socket

SW5 (Reset)

Power/OSJTAG

Mini-B USB

Connector

Secondary

Connector

SW3

SW4

Touch/SLCD

TWRPI Socket

LED/Touch

Buttons

E1–E4

MK40X256

VMD100

Microcontroller

MMA7660

Accelerometer

Figure 1: Front Side of TWR-K40X256 Board Not Including TWRPI

TWR-K40X256

The TWR-K40X256 controller board is part of the Freescale

Tower System, a development board platform that enables rapid

prototyping and tool re-use through reconfigurable hardware. Take

your design to the next level and begin constructing your Tower

System rapid prototyping platform today by visiting freescale.

com/Tower for additional Tower System controller boards and

compatible peripherals.

SD Card Socket

VBAT (RTC)

Battery Holder

Potentiometer

Figure 2: Front Side of TWR-K40X256 Board

with TWRPI-SLCD Attached

Figure 3: Back Side of

TWR-K40X256 Board

4 5

Step-by-Step Installation

Instructions (cont.)

freescale.comQuick Start Guide

5Explore Further by

Conducting Lab 1:

TWR-K40X256

Quick Start Demo

Explore all the features and capabilities

of the pre-programmed demo by reviewing

the lab document located at

freescale.com/TWR-K40X256.

6Learn More

About the Kinetis

K40 Microcontrollers

Find more MQX

™

RTOS and bare-metal

labs and software for the Kinetis

K40 microcontrollers at

freescale.com/TWR-K40X256.

Step-by-Step

Installation Instructions

Tilt the board side to side to see the LEDs

on E1–E4 light up as it is tilted.

Navigate the

4Segment LCD

The Segment LCD will come up displaying

the seconds elapsed since boot-up.

Press SW4 to toggle between viewing the

seconds, hours, minutes, potentiometer

percent and temperature.

1Install the Software

and Tools

Install the P&E Micro Kinetis Tower Toolkit

to install the OSJTAG and USB-to-Serial

drivers. These can be found on the DVD

under Software.

2Configure the

Hardware

Install the included battery into the VBAT

(RTC) battery holder. Then, plug in the

included Segment LCD Tower Plug-In

(TWRPI-SLCD) into the Touch/SLCD

TWRPI socket. Finally, connect one end of

the USB cable to the PC and the other end

to the Power/OSJTAG mini-B connector on

the TWR-K40X256 module. Allow the PC

to automatically configure the USB drivers

if needed.

3Tilt the

Board

In this Quick Start Guide, you will learn how to set up the TWR-K40X256 board and run

the default demonstration.

6 7

freescale.comQuick Start Guide

Jumper Option Setting Description

J11 MCU Power

Connection

ON Connect on-board 3.3 V supply to MCU

OFF Isolate MCU from power (connect an ammeter to measure current)

J12 VBAT Power

Selection

1-2 Connect VBAT to on-board 3.3 V supply

2-3 Connect VBAT to the higher voltage between on-board 3.3 V supply

or coin-cell supply

J13

OSJTAG

Bootloader

Selection

ON OSJTAG bootloader mode (OSJTAG firmware reprogramming)

OFF Debugger mode

J15

JTAG Board

Power

Connection

ON Connect on-board 5 V supply to JTAG port (supports powering

board from JTAG pod supporting 5 V supply output)

OFF Disconnect on-board 5 V supply to JTAG port

J6 IR Transmitter

Connection

ON Connect PTD7/CMT_IRO to IR Transmitter (D3)

OFF Disconnect PTD7/CMT_IRO from IR Transmitter (D3)

VREGIN

Power

Connection

ON Connect USB0_VBUS from Elevator to VREGIN

OFF Disconnect USB0_VBUS from Elevator to VREGIN

FlexBus

Address Latch

Selection

1-2 FlexBus address latch disabled

2-3 FlexBus address latch enabled

Jumper Options

The following is a list of all the jumper options. The default installed jumper settings are

shown in the shaded boxes.

To learn more about the TWR-K40X256 and other

Freescale Kinetis microcontroller products, visit

freescale.com/TWR-K40X256,

freescale.com/Kinetis and freescale.com/Tower

For more information, visit freescale.com

Freescale, the Freescale logo and Kinetis are trademarks of Freescale

Semiconductor, Inc., Reg. U.S. Pat. & Tm. Off. Tower is a trademark of

Freescale Semiconductor, Inc. All other product or service names are the

property of their respective owners.

Doc Number: TWRK40QSG REV 3 Agile Number: 926-78534 REV D

Get Started

Download installation software and documentation under

“Jump Start Your Design” at freescale.com/TWR-K40X256.

Support

Visit freescale.com/support for a list of phone

numbers within your region.

Warranty

Visit freescale.com/warranty for complete

warranty information.

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