Axiom M52221DEMO Installation manual

DOC-0396-010, REV A
Axiom Manufacturing •2813 Industrial Lane •Garland, TX 75041
Email: [email protected] Web: http://www.axman.com
M52221DEMO
Demonstration Board for Freescale MCF52221
Hardware User Guide

M52221DEMO USER GUIDE JANUARY 18, 2007
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CONTENTS
CAUTIONARY NOTES ..............................................................................................................4
TERMINOLOGY.........................................................................................................................4
FEATURES ................................................................................................................................5
REFERENCES ...........................................................................................................................6
OVERVIEW ................................................................................................................................6
GETTING STARTED..................................................................................................................7
SOFTWARE DEVELOPMENT...................................................................................................7
OPERATING MODES ................................................................................................................7
RUN MODE ........................................................................................................................... 7
DEBUG MODE ......................................................................................................................8
MEMORY MAP ..........................................................................................................................9
DEVELOPMENT SUPPORT ......................................................................................................9
BDM_PORT HEADER........................................................................................................... 9
INTEGRATED BDM_PORT................................................................................................. 10
POWER ....................................................................................................................................10
POWER JACK..................................................................................................................... 11
TERMINAL BLOCK......................................................................................................... 11
CONNECTOR J1................................................................................................................. 11
POWER INDICATORS ........................................................................................................ 12
POWER SWITCH................................................................................................................ 12
POWER SELECT ................................................................................................................ 12
PWR_SEL....................................................................................................................... 12
VX_EN............................................................................................................................. 13
USB OTG POWER.............................................................................................................. 13
RESET......................................................................................................................................14
RESET SWITCH ................................................................................................................. 14
RESET INDICATOR............................................................................................................ 15
LOW-POWER MODES ............................................................................................................15
TIMING.....................................................................................................................................15
COMMUNICATIONS................................................................................................................15
SCI PORT............................................................................................................................ 15
COM_EN......................................................................................................................... 15
COM CONNECTOR........................................................................................................ 16
SPI PORT............................................................................................................................ 16
IIC PORT............................................................................................................................. 16
USB OTG .................................................................................................................................16
ACCELEROMETER.................................................................................................................17
USER OPTIONS ......................................................................................................................17

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PUSHBUTTON SWITCHES............................................................................................ 18
USER LED’S ................................................................................................................... 18
POTENTIOMETER.......................................................................................................... 18
I/O PORT CONNECTOR..........................................................................................................18
FIGURES
Figure 1: BDM_PORT.................................................................................................................9
Figure 2: PWR Jack..................................................................................................................11
Figure 3: TB1 Terminal Block ...................................................................................................11
Figure 4: PWR_SW Switch.......................................................................................................12
Figure 5: PWR_SEL Option Header .........................................................................................13
Figure 6. VX_EN Option Header .............................................................................................13
Figure 7: ILIM Option Header ...................................................................................................14
Figure 8: 5V_SEL Option Header .............................................................................................14
Figure 9: COM_EN Option Header...........................................................................................16
Figure 10: COM Connector.......................................................................................................16
Figure 11: LED_EN Option Header ..........................................................................................18
Figure 12: POT_EN Option Header..........................................................................................18
Figure 13: Connector J1 ...........................................................................................................19
TABLES
Table 1: Run Mode Setup...........................................................................................................8
Table 2: Debug Mode Setup.......................................................................................................8
Table 3: ACC_EN Option Header.............................................................................................17
Table 4: User Option Connections............................................................................................17
REVISION
Date Rev Comments
January 18, 2007 A Initial Release.

M52221DEMO USER GUIDE JANUARY 18, 2007
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CAUTIONARY NOTES
1) Electrostatic Discharge (ESD) prevention measures should be used when handling this
product. ESD damage is not a warranty repair item.
2) Axiom Manufacturing does not assume any liability arising out of the application or use of
any product or circuit described herein; neither does it convey any license under patent
rights or the rights of others.
3) EMC Information on the M52221DEMO board:
a) This product, as shipped from the factory with associated power supplies and cables,
has been verified to meet with FCC requirements as a CLASS Aproduct.
b) This product is designed and intended for use as a development platform for hardware
or software in an educational or professional laboratory.
c) In a domestic environment, this product may cause radio interference in which case the
user may be required to take adequate prevention measures.
d) Attaching additional wiring to this product or modifying the product operation from the
factory default as shipped may effect its performance and cause interference with other
apparatus in the immediate vicinity. If such interference is detected, suitable mitigating
measures should be taken.
TERMINOLOGY
This development board uses option selection jumpers. A jumper is a plastic shunt that con-
nects 2 terminals electrically. Terminology for application of the option jumpers is as follows:
Jumper on, in, or installed - jumper is installed such that 2 pins are connected together.
Jumper off, out, or idle - jumper is installed on 1 pin only. It is recommended that jumpers be
idled by installing on 1 pin so they will not be lost.
Cut-Trace – a circuit trace connection between component pads. The circuit trace may be cut
using a knife to break the default connection. To reconnect the circuit, simply install a suitably
sized 0-ohm resistor or attach a wire across the pads.
Signal names in this document that are followed by an asterisk (*) denotes active-low signals.

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FEATURES
The M52221DEMO is a low-cost development board for the Freescale MCF52221 ColdFire
microcontroller. Application development is quick and easy with the included DB9 serial cable,
integrated BDM, and USB cable. A 128 MB flash-drive and 6-in-1 USB cable provide support
for the integrated USB PHY. CodeWarrior Development Tools provide application develop-
ment and debug support. The integrated BDM allows easy application development and de-
bugging. An optional BDM port compatible with standard ColdFire BDM / JTAG interface ca-
bles and hosting software is also provided but not installed.
Features:
•MCF52221 CPU, 80 LQFP
•128 Byte Flash
•16K Byte Ram
•USB On-The-Go (OTG) Phy
•4ch, DMA Controller w/ Timers
•2ea. Programmable Interrupt Timer
•4 GPT Timers
•8ch, 12b ADC
•UART Serial Ports with DMA capability
•QSPI and IIC Ports
•3.3V operation
•Integrated USB BDM
•48 MHz XTAL
•40 pin I/O port
•miniUSB Port
•BDM / JTAG Port (not installed)
•RS-232 Serial Port w/ DB9-S Connector
•ON/OFF Power Switch w/ LED indicator
•RESET switch w/ indicator
•Power Input Selection Jumper
•Power Input from USB BDM
•Power Input from on-board regulator
•Power Input from terminal block
•Power from connector J1
•Optional Power output through connector J1
•User Features
•3-axis Accelerometer
•4 User LED’s w/ enable
•2 User Push Switches
•5k ohm POT w/ enable
•Option Jumpers
•Power Input Select
•Optional Power Output Enable
•BDM_EN
•XTAL_EN
•POT_EN
•COM_EN
•LED_EN
•Connectors
•RJ-45 Ethernet Connector

M52221DEMO USER GUIDE JANUARY 18, 2007
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•Type B USB connector
•DB9 Serial Connector
•2.0mm Barrel Power Input
•2pos, screw type, terminal block
•Supplied with DB9 Serial Cable, USB cable, Ethernet Cable, Support CD, and CodeWarrior Development
Studio CD
Specifications:
Board Size 3.0” x 4.0”
Power Input: +5 to +16 VDC, 9VDC typical
REFERENCES
Reference documents are provided on the support CD in Acrobat Reader format.
M52221DEMO_UG.pdf M52221DEMO User Guide (this document)
M52221DEMO_SCH_C.pdf M52221DEMO Schematic, Rev C
M52221DEMO_Silk_C.pdf M52221DEMO Top Silkscreen, Rev C
M52221DEMO_Assy_C.pdf M52221DEMO Default Shunt Placement
CFPRM.pdf ColdFire Programmers Reference Manual
USB_20_05122006.zip USB2.0 Specification and OTG Supplement
with errata
OVERVIEW
The target MCU features an on-board USB On-the-Go (OTG) physical layer (Phy). The OTG
Phy may be configured for either Host or Peripheral mode depending on the target application.
The OTG protocol also allows mode switching under software control. Access to the OTG Phy
is gained through the mini-AB (MAB) connector at J2. The OTG connection may be configured
as either a standard USB bus connection or an OTG USB bus connection.
The MAB USB port connector at J2 should not be confused with the integrated USB BDM cir-
cuit. These are 2 separate circuits and do not interact in any way. The USB port provides ac-
cess to the OTG Phy on the target MCU. The USB BDM allows the user to communicate with
the target MCU using either CodeWarrior or P&E Microcomputer Systems debugger tools and
a USB2.0 cable. This distinction must be understood and comprehended while reading this
document.
The M52221DEMO board utilizes 2 separate voltage rails. The regulator at VR1 energizes the
+3.3V rail for use by the target MCU and on-board logic. The regulator at VR2 energizes the
+5Vrail for use by the OTG USB port. A charge-pump at U6 energizes the OTG USB rail when
the board is powered from the USB BDM.

M52221DEMO USER GUIDE JANUARY 18, 2007
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GETTING STARTED
To get started quickly, please refer to the M52221demo Quick Start Guide. This quick start will
illustrate connecting the board to a PC, installing the correct version of CodeWarrior Develop-
ment Studio, and running a simple HID test program.
SOFTWARE DEVELOPMENT
Software development requires a ColdFire assembler, or compiler, and a host PC running a
ColdFire BDM interface. CodeWarrior Special Edition, supplied with this board, allows the
user to develop and debug application code and to program flash.
One method to ensure successful application development is to load and debug application
code from internal RAM. The application can be ported to FLASH after development is com-
plete. However, this method limits code size to the 16 KB internal RAM size. When pro-
grammed into FLASH, the application will execute from Power-On or RESET if the RESET
vector is programmed.
OPERATING MODES
The M52221DEMO board operates in two basic modes Run Mode, or Debug Mode. Run
Mode executes user application code from Power-On or Reset, if the RESET vector is pro-
grammed. Debug Mode supports the development and debug of applications via the inte-
grated USB BDM. An optional BDM_PORT provides access for any ColdFire compatible de-
bug cable. The BDM_PORT is not installed in default configurations. See the related sections
below for quickly starting the board in the desired mode of operation.
RUN Mode
Run mode executes the user application out of FLASH when power is applied to the board or
the RESET button is pressed. The RESET vector must be programmed to allow application
code to execute. Use the following settings to configure the M52221DEMO for RUN Mode
using the USB bus to power the board. See the POWER section below for details on config-
uring the board for alternate power input.
1. Connect auxiliary cables and equipment to board if required.
2. Configure the board option jumpers as shown.

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Table 1: Run Mode Setup
PWR_SEL Set to VB
BDM_EN ON
COM_EN ALL ON (if required)
VX_EN ON (if required)
LED_EN ON (if required)
3. Connect the A/B type USB cable to an open USB port on the host PC and attach to the
USB BDM port on the target board. LED’s D301 and D302 located adjacent to the USB
connector, and the VDD LED will light and the loaded application will begin to execute, if
the RESET vector has been programmed.
Debug Mode
Debug Mode supports application development and debug using the ColdFire background de-
bug module (BDM). Background mode is accessible using either the integrated USB BDM or
an external ColdFire compatible BDM cable. Using the integrated BDM requires a host PC
with an available USB port and an A/B USB cable and appropriate hosting software. The USB
cable must be USB 2.0 compliant. An external BDM cable can be attached to the 26-pin
BDM_PORT header. This header is not installed in default configurations. The steps below
describe using the integrated USB BDM. See the POWER section below for details on config-
uring the board for alternate power input.
1. Connect auxiliary cable and equipment to board if required.
2. Install and launch CodeWarrior 6.1 Special Edition. This will load the drivers necessary to
support the USB connection.
3. Configure the board option jumpers as shown.
Table 2: Debug Mode Setup
PWR_SEL Set to VB
BDM_EN ON
COM_EN ALL ON (if required)
VX_EN ON (if required)
LED_EN ON (if required)
4. Connect the supplied USB cable between an available USB port on the host PC and the
USB BDM connector on the board. LED’s D301 and D302 located adjacent to the USB
connector, and the VDD LED will light. Hosting development software will establish back-
ground communication.

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MEMORY MAP
Refer to the MCF52223 Integrated Microcontroller Reference Manual (RM) for details. The
RM may be downloaded from the Freescale web site at www.freescale.com.
DEVELOPMENT SUPPORT
Application development and debug for the target MCF52221 is supported through the BDM
interface. The debug interface consists of an optional 26-pin header (BDM_PORT) and an in-
tegrated USB BDM debugger. The BDM_PORT header is not installed in default configuration
and may be installed by the user if needed. Refer to the MCF52223 RM for details on using
the Background Debug Module
Optional JTAG access is also supported through the BDM_PORT header. To use this optional
JTAG access, open the cut-trace between pin 1 and pin 2 of the BDM_SEL option header. In-
stall a standard 1x3, 0.1”, header at location BDM_SEL and install a shunt from pin 2 to pin 3.
Refer to the MCF52223 RM (www.freescale.com) for details on using the JTAG port access.
BDM_PORT Header
A ColdFire compatible BDM cable may be attached to the 26-pin BDM_PORT port header.
This header is not installed in default configuration. To use this feature, simply install a 2x13,
0.1” center, pin-header. Refer to the BDM documentation, in the RM, for details on using the
BDM cable. The BDM_PORT header pin-out is shown below.
Figure 1: BDM_PORT
NC 1 2 BKPT*
GND 3 4 DSCLK
GND 5 6 TCLK (JTAG)
RSTI* 7 8 DSI
Refer to the MCF522235 Integrated Microcon-
troller Reference Manual for details on using
the BDM_PORT
VDD 910 DSO
GND 11 12 ALLPST
ALLPST 13 14 ALLPST
ALLPST 15 16 NC
NC 17 18 NC
NC 19 20 GND
NC 21 22 NC
GND 23 24 TCLK (BDM)
VDD 25 26 TA*
NOTE: This header is not installed in default configuration.

M52221DEMO USER GUIDE JANUARY 18, 2007
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Integrated BDM_PORT
The M52221DEMO board features an integrated USB BDM debugger. The integrated debug-
ger supports application development and debugging via the background debug mode. A type
B, USB connector provides connectivity between the target board and the host PC.
NOTE: Using the integrated USB BDM requires CodeWarrior 6.1 Special Edition or later. De-
velopment tools from P&E Microcomputer Systems also support the target MCF52221.
The integrated debugger provides power and ground to the target, thereby eliminating the
need to power the board externally. Power from the integrated USB BDM is derived from the
USB bus; therefore, current consumption is limited by the USB specification. Total current
consumption for the target board, and any connected circuitry, must not exceed 500mA. Ex-
cessive current drain will violate the USB specification causing the bus to disconnect. This will
force a target POR.
CAUTION: Violating the USB specification will cause the USB bus to disconnect forcing the
target to reset. Damage to the board or host PC may also result.
POWER
The M52221DEMO utilizes 2 separate voltage rails. The regulator at VR1 energizes the +3.3V
rail and provides power to the target MCU and all on-board logic. The regulator at VR2 ener-
gizes the +5V rail and provides power the OTG USB bus when the board is configured for host
mode applications.
The M52221DEMO is designed to allow application development while powered from the USB
BDM. A 2.0mm barrel connector and a 2-position, screw-type, terminal block (BATT) has been
applied to support stand-alone operation. The board may also be powered through connector
J1. Additionally, the board may be configured to supply power through connector J1 to exter-
nal circuitry.
An ON/OFF switch allows the user to quickly and easily connect and disconnect the +3.3V
logic voltage rail. The +5V voltage rail supplies power to the USB bus through the MAB con-
nector at J2 only and is not affected by the position of the ON/OFF switch.
When using the integrated USB BDM, the board draws power from the USB bus. Excessive
current drain will violate the USB specification causing the USB bus to disconnect forcing a
POR. Total current consumption of the board and any connected circuitry, therefore, must be
less than 500mA.
CAUTION: Violating the USB specification will cause the USB bus to disconnect. This will
force a hard reset on the target.
The installed barrel connector accepts a center-positive, 2.1mm barrel plug. The terminal
block accepts wire sizes ranging from 28ga to 16ga. Voltage input must be in the range be-
tween +6V and +15V. At no time should input voltage exceed +15V as damage to the board
may result. The terminal block input is connected directly to the upper voltage rail. Input pro-