Freescale Semiconductor TWR-K20D50M User manual

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property of their respective owners. © 2012 Freescale Semiconductor, Inc.
Doc Number: TWRK20D50MQSG REV 0 Agile Number: 926-27272 REV A
Quick Start Guide
Get Started
Download the installation software and
documentation under “Jump Start Your Design”
at freescale.com/TWR-K20D50M.
Support
Visit freescale.com/support for a list of phone
numbers within your region.
Warranty
Visit freescale.com/warranty for complete
warranty information.
Quick Start Guide
TWR-K20D50M
Development Kit for Kinetis 50 MHz
K20 Family
Quick Start Guide
TOWER SYSTEM

TOWER SYSTEM
2 3
Quick Start Guide
Get to Know the TWR-K20D50M
General Purpose
Tower Plug-In
Microphone
Potentiometer
Power/OSJTAG
Mini-AB USB
Connector
SW2
SW3
K20 MicroUSB
Connector
JM60 BDM
JM60 Bootloader
Enable
SW1 (Reset)
Touch TWRPI
Socket
Enable Options 2
LED Green
and BLue
LED/Touch
Buttons
JTAG
Connector
Device Enable
Options 1
Regulator
Option Selector
Board Power
Selector
Figure 1: Front side of TWR-K20D50M
module (TWRPI devices not shown).
Step-by-Step Installation Instructions
Download Software
and Tools
Get the installation software
and documentation under
“Jump Start Your Design” at
freescale.com/TWR-K20D50M.
Install Software and Tools
Install the OSBDM/OSJTAG Tower
Toolkit to install the OSJTAG and
USB-to-Serial drivers.
Configure the Hardware
Connect one end of the USB cable
to the PC and the other end to the
Power/OSJTAG mini-B connector
on the TWR-K20D50M module.
Allow the PC to automatically
configure the USB drivers if needed.
Press Switches and
Touch Electrodes
A tone will beep when SW2 or
SW3 are pushed, touch the pads
on E1-E2 and LEDs will turn on.
Tilt the Board
Sound can be heard through
the board buzzer depending on
inclination angle.
Clap or Whistle Near the
Board Microphone
Your TWR-K20D50M will respond
with a tone.
Explore Further
Explore Kinetis 50 MHz devices
ultra-low power modes and USB
communication by conducting
the additional Labs located at
freescale.com/TWR-K20D50M
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TWR-K20D50M Features
• Towercompatiblemicrocontrollermodule
• MK20DX128VLH5MCU(50MHz,128KBFlash,16KBRAM,32KBFlexNVM,
Lowpower,64LQFPpackage
• DualroleUSBinterfacewithMicro-ABUSBconnector
• TouchTowerPlug-inSocket
• GeneralpurposeTowerPlug-in(TWRPI)socket
• On-boarddebugcircuitMC9S08JM60opensourceJTAG(OSJTAG)withvirtualserialport
• Threeaxisaccelerometer(MMA8451Q)
• Four(4)user-controllableLEDs
• Two(2)capacitivetouchpads
• Two(2)userpushbuttonswitch
• Infraredtransmitandreceive
• Potentiometer
• Microphone(ADC)
• Buzzer
• BatterybackupforRTC
Tools
• Freescale’sCodeWarriorDevelopmentStudioforMicrocontrollersv10.1(CW-MCU10)
• IAREWARMV6.30
Quick Start Guide TOWER SYSTEM
45
TWR-K20D50M
Freescale Tower System
The TWR-K20D50M microcontroller module is designed to work either in stand
alone mode or as part of the Freescale Tower System, a modular development
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 today by visiting freescale.com/tower for additional Tower System
microcontroller modules and compatible peripherals.
Figure 2: Back side of TWR-K20D50M module.
VBAT (RTC)
Battery
Holder
Buzzer
Infrared
Port
Get to Know the TWR-K20D50M (continued)

Jumper Jumper
Designator Signal Jumper Option
V_BRD
J25 V_BRD DEF: 1-2 VBRD to MCU_PWR
J23 VDDA_HDR DEF: 1-2 VDDA to MCU_PWR
VBAT
J35 VBATD Enable VBAT DEF: 1-2
J36 VBATD Enable MCU_PWR DEF: 1-2
PSV_TRG_USB J24 PSV_TRG_USB open
JM60 Bootloader J34 JM60 BOOTLOAD EN open OSJTAG mode
1-2 JM60 bootloader mode
VREG IN SELECTOR J30 VREG IN SELECTOR
DEF: 1-2 Regulator powered by OSJTAG USB
5-6 K20 USB power power the K20 Regulator
8-6 TWR-USB power up the K20 Regulator
BOARD POWER
SELECTION J29 BOARD POWER
SELECTION
DEF: 3-5 P3.3V_REG powers VBRD(MCU_PWR)
7-5 1.8V powers VBRD(MCU_PWR)
1-2 K20 3.3 Reg Output powers VBRD
(MCU_PWR)
Module Jumper
Designator Name Options K20 pin name
USB J26 K20 USB ENA DEF: 1-2 PTC9_EBI_AD6
J32 K20 USB FLGA DEF: 1-2 PTC8_EBI_AD7/SSI0_CLK
IRDA J9 IRDAJ open PTD7_CMT_IRO
J7 CMP0_IN0 open PTC7_EBI_AD8/CMP0_IN1
Microphone J16 Microphone Enable DEF: 1-2 ADC0_DP3
Potentiometer J15 Potentiometer Enable DEF: 1-2 ADC0_DM3
Buzzer J1 Buzzer Enable DEF: 1-2 PTC4
Accelerometer
J19 SDA Accelerometer Enable DEF: 1-2 PTB3_I2C0_SDA/ADC0_SE13/TSI0_CH8
J20 SCL Accelerometer Enable DEF: 1-2 PTB2_I2C0_SCL/ADC0_SE12/TSI0_CH7
J18 ACCELEROMETER INT1 DEF: OPEN PTB0/ADC0_SE8/TSI0_CH0
J17 ACCELEROMETER INT2 DEF: OPEN PTB1/ADC0_SE9/TSI0_CH6
GPIO Header J2
1SAI0_RX_FS PTC10_EBI_AD5/SSI0_RX_FS
2SAI0_TX_FS PTB19/SSI0_TX_FS/TSI0_CH12
3SAI0_RXD0 PTC5
4SAI0_TXD0 PTC1/UART_RTS/FTM0_CH0/TSI0_CH14
5SAI0_RXD1 PTC11_LLWU_SSI0_RXD1
6SAI0_TXD1 PTC0/SSI0_TXD/TSI0_CH13
7SAI0_RX_BCLK PTC6
8SAI0_TX_BCLK PTB18/SSI0_TX_BCLK/TSI0_CH11
9SAI0_MCLK PTC8_EBI_AD7/SSI0_CLK
10 GND GND
LEDs
J13 LED orange Enable DEF: 1-2 PTC10
J11 LED Yellow Enable DEF: 1-2 PTC9
J4 LED Green Enable DEF: 1-2 PTC7
J6 LED Blue DEF: 1-2 PTC8
PTA12 - Header J28 PTA12
1 MCU_PWR
2 PTA12
3 GND
This header can be used to power up an
external circuit/sensor
Push Buttons SW2 Pushbutton1 PTC1 PTC1/UART_RTS/FTM0_CH0/TSI0_CH14
SW3 Pushbutton0 PTC2 PTC2/UART_CTS/FTM0_CH1/TSI0_CH15
TSI Electrodes Elec1 Electrode1 TSI0_CH0 PTB0/ADC0_SE8/TSI0_CH0
Elec2 Electrode2 TSI0_CH6 PTB1/ADC0_SE9/TSI0_CH6
Default Configuration, Board powered by OSJTAG USB, RTC powered by PWR_MCU
TOWER SYSTEM
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Quick Start Guide
TWR- K20D50M Jumper Options
The following is a list of all the jumper options. The default installed jumper
settings are shown in white text within the red boxes.