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TWR-MCF5225X
Quick Start Guide
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User guide
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Freescale Semiconductor TWR-MCF5225X User guide

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TWR-MCF5225X
User Manual
Rev. 1.0
Freescale Semiconductor Inc.
Contents
3.1 Clocking ..................................................................................................................................................................................4
3.2 System Power.......................................................................................................................................................................4
3.3 Debug Interface ...................................................................................................................................................................4
3.4 RS232 Interface...................................................................................................................................................................5
3.5 Elevator Connections ........................................................................................................................................................5
3.6 Mechanical Form Factor ..................................................................................................................................................5
6.1 Bootloader Mode ................................................................................................................................................................7
Revision History
Revision Date Changes
1.0 Sept 23, 2009 Initial Release
TWR-MCF51CN User’s Manual Page 2 of 9
1 Overview
The MCF5225X Tower MCU Module (TWR-MCF5225X) is a low-cost evaluation, demonstration and development board. The TWR-MCF5225X can operate stand-alone or as the main control board in a Tower System with peripheral modules.
The following list summarizes the features of the TWR-MCF5225X:
• Tower compatible microcontroller module
• MCF52259 in an 144 LQFP package
• MC9S08JM60 based Open Source Debug (OSBDM) circuit
• 4 user controlled LEDs
• Four DIP Switches and two push buttons for user input
• Potentiometer
• MMA7260 three-axis accelerometer
• RS232 transceiver and 2x5 pin header
• Expansion via Primary Elevator connector
A block diagram for the TWR-MCF5225X is shown in the figure below.
Tower Elevator Expansion Connectors
SPI, I2C, ADC, USB, FEC, Timers, PWM, UARTs, IRQs, Mini-Flexbus, etc.
26-Pin BDM
Header
OSBDM
USB
Mini-AB
10-Pin
Header
Freescale Device External Connectors Interface Circuits Power
Debug, Power, SCI
5.0V
3.3V
RS232
XCVR
BDM
UART0
MCF52259
ColdFire® V2
Microcontroller
ADC
MMA7260
3-axis
Accelerometer
GPIO
Reset
C D A
Figure 1. TWR-MCF5225X Block Diagram
3.3V5.0V
CLOCKIN0
48 MHz
LED
LED
LED
LED
TWR-MCF51CN User’s Manual Page 3 of 9
2 Reference Documents
The documents listed below should be referenced for more information on the Freescale Tower system and the TWR-MCF5225X. Refer to http://www.freesale.com/tower for the latest revision of all Tower documentation.
• TWR-MCF5225X Schematics
• TWR-MCF5225X Quick Start Guide
• TWR-MCF5225X-KIT Lab Tutorial
• MCF52259 Reference Manual
• MCF52259 Data Sheet
• AN3561, USB Bootloader for the MC9S08JM60
3 Hardware Features
This section provides more details about the features and functionality of the TWR-MCF5225X.
3.1 Clocking
Two options are provided for clocking the MCF5225X device:
1. 48 MHz crystal
2. External clock input from Primary Elevator (CLOCKIN0)
Selection of the clock input is determined by the J5 jumper setting. The 48 MHz crystal option is selected by default. Refer to Table 1 for more details.
3.2 System Power
The TWR-MCF5225X can be powered by the OSBDM circuit via the Mini-B USB connector, J17, or from a source in an assembled Tower System. A standard USB A male to Mini-B male cable (provided) can be used to supply power from a USB Host or powered USB Hub. Optionally, an AC to DC adapter with a USB A female receptacle (not provided) can be used as the power source.
Power will automatically be sourced from the Elevator connector if power is available on both the Elevator and the OSBDM.
A jumper, J4, can be used to isolate the 3.3V supply from the microcontroller. This connection can be used to measure the power usage of the MCF5225X microcontroller.
3.3 Debug Interface
An on-board, MC9S08JM60 based Open Source BDM (OSBDM) circuit provides a debug interface to the MCF5225X. A standard USB A male to Mini-B male cable (provided) can be used for debugging via the USB connector, J17. Refer to Section 6 for information on other modes of operation of the OSBDM.
TWR-MCF51CN User’s Manual Page 4 of 9
3.4 RS232 Interface
An RS232 transceiver on the TWR-MCF5225X connects to a standard 2x5 pin header (refer to Figure 2). Selection jumpers J12 and J13 allow UART0 signals to be routed to either the RS232 transceiver or the OSBDM circuit. Refer to Table 1 for more details.
MCF5225X
Signal Pin
No Connect 1 2 No Connect
TXD 3 4 CTS RXD 5 6 RTS
No Connect 7 8 No Connect
GND 9 10 3.3V
MCF5225X
Signal
Figure 2. RS232 2x5 Pin Header Connections
3.5 Elevator Connections
The TWR-MCF5225X features two expansion card-edge connectors that interface to Elevator boards in a Tower system: the Primary and Secondary Elevator connectors. The Primary Elevator connector, comprised of sides A and B, is utilized by the TWR-MCF5225X, while the Secondary Elevator connector only makes connections to ground (GND).
3.6 Mechanical Form Factor
The TWR-MCF5225X is designed for the Freescale Tower System and complies with the electrical and mechanical specification as described in Freescale Tower Electromechanical Specification.
4 Jumper Table
There are several jumpers provided for isolation, configuration, and feature selection. Refer to the following table for details. The default installed jumper settings are shown in bold.
Table 1. TWR-MCF5225X Jumper Table
Jumper
J3
J4 MCU Power Connection
J5 Clock Input Source Selection
J6 Default Clock Mode Selection
Default Clock Mode Selection (CLKMOD1)
Option
Setting
1-2
2-3
ON
OFF
1-2
2-3
1-2
Description
Disable PLL at startup Enable PLL at startup Supply 3.3V to MCU
Isolate MCU from Power (connect an ammeter to measure current)
Connect EXTAL to the on-board Crystal Connect EXTAL to the CLKIN0 signal on the Elevator Connector
Do not use Crystal Oscillator at startup
TWR-MCF51CN User’s Manual Page 5 of 9
Release RSTIN so it can be controlled by SW4 to initiate
(CLKMOD0)
J7 Peripheral Selection
J10
J11
J12 UART TXD0 Routing Selection
J13 UART RXD0 Routing Selection
J14 BDM / JTAG Enable Selection
J15 TCLK/PSTCLK Routing Selection
J16
J20 OSBDM Bootloader Selection
J21 RESET Select
Default Clock Mode Selection (XTAL)
UART Hardware Flow Control Connections
TCLK/PSTCLK/CLKOUT Routing Selection
2-3
1-2
3-4
5-6
7-8
9-10
11-12
13-14
15-16
1-2
2-3
OFF
1-2
3-4
1-2
2-3
1-2
2-3
1-2
2-3
1-2
2-3
1-2
2-3
ON
OFF
ON
OFF
Use Crystal Oscillator at startup Connect AN3 to Potentiometer Connect TIN3/TOUT3/PWM6 to LED4 Connect TIN2/TOUT2/PWM4 to LED3 Connect TIN1/TOUT1/PWM2 to LED2 Connect TIN0/TOUT0/PWM0 to LED1 Connect AN2 to Accelerometor Z-access Connect AN1 to Accelerometor Y-access Connect AN0 to Accelerometor X-access Bypass Crystal Oscillator at startup (if CLKMOD0 = 0)
Enable Internal Relaxation Oscillator at startup (if CLKMOD0 = 0)
Use Crystal Oscillator at startup Connect CTS0 to the RS232 transciever for flow control Connect RTS0 to the RS232 transciever for flow control Connect TXD0 to the RS232 transceiver Connect TXD0 to the OSBDM debugger interface circuit Connect RXD0 to the RS232 transceiver Connect RXD0 to the OSBDM debugger interface circuit BDM mode JTAG mode Connect TCLK/PSTCLK to PSTCLK for BDM mode Connect TCLK/PSTCLK to TCLK for JTAG mode
Connect TCLK/PSTCLK/CLKOUT to TCLK/PSTCLK for BDM/JTAG mode Connect TCLK/PSTCLK/CLKOUT to CLKOUT0 on the Elevator Connector OSBDM bootloader mode (OSBDM firmware reprogramming)
Debugger Mode Suspend MCU in Reset state (hold RSTIN low)
reset sequences
5 Input/Output Connectors and Pin Usage Table
The following tables provides details on which MCF5225X pins are using to communicate with the TWR-MCF5225X sensors, LEDs, switches, and other I/O interfaces.
Table 2. I/O Connectors and Pin Usage Table
TWR-MCF51CN User’s Manual Page 6 of 9
TWR-MCF5225X MCF5225X
I/O Component I/O Label Default
SW2-1 DDATA0
Dip Switch
Push Button
LED
Accelerometer MMA7260QT
Potentiometer POT AN3
RS232 ICL3232
USB↔Serial
SW2-2 DDATA1 SW2-3 DDATA2 SW2-4 DDATA3 SW1 GPT0 SW3 GPT1 SW4 RSTI LED1 DTIN0 DTOUT0 PWM0 PTC0 LED2 DTIN1 DTOUT1 PWM2 PTC1 LED3 DTIN2 DTOUT2 PWM4 PTC2 LED4 DTIN3 DTOUT3 PWM6 PTC3 X_OUT AN0 Y_OUT AN1 Z_OUT AN2
232_RXD URXD0 232_TXD UTXD0 CTS UCTS0 RTS URTS0 T_RXD1 URXD0 T_TXD1 UTXD0
Alt 1 Alt 2 Alt 3
         
               
PWM1 PTA0 PWM3 PTA1
USB_VBUSE PUA3
USB_VBUSD PUA2
GPIO GPIO GPIO GPIO
PAN0 PAN1 PAN2 PAN3 PUA1 PUA0
PUA1 OSBDM PUA0
Note:
Refer to Chapter 15, General Purpose I/O Module, in MCF5225X Reference Manual to
configure pin to appropriate alternate function.
6 OSBDM
An on-board, MC9S08JM60 based Open Source BDM (OSBDM) circuit provides a debug interface to the MCF5225X. The MC9S08JM60 is a USB-enabled microcontroller with an 8-bit HC9S08 core. The OSBDM circuit provides a USB-to-debug interface that allows run-control and debugging of the MCF5225X target device. The USB drivers required to communicate with the OSBDM are provided in development tools such as Freescale CodeWarrior. This single USB connection can also be used to power the TWR-MCF5225X stand-alone or in a fully assembled Tower System.
6.1 Bootloader Mode
The MC9S08JM60 device used in the OSBDM circuit is preprogrammed with OSBDM debugger firmware and a USB Bootloader. The bootloader mode can be used to update the OSBDM debugger firmware if an update becomes available. Jumper J20 determines which application will run following a power-on reset. If Bootloader Mode is chosen (jumper shunt on J20), the bootloader will be executed,
TWR-MCF51CN User’s Manual Page 7 of 9
allowing in-circuit reprogramming of the JM60 flash memory via USB. Refer to Application Note
AN3561 on the Freescale website (http://www.freescale.com) for details on the USB Bootloader.
The USB Bootloader communicates with a GUI application running on a host PC. The GUI application can be found on the Freescale website; search keyword “JM60 GUI”. Refer to section 2.5 and 3.3 of AN3561 for details on installing and running the application.
Note:
The JM60 GUI Installer should be run before connecting the OSBDM in Bootloader
Mode to a host USB port. Otherwise, the JM60 USB device will not be recognized and
the proper drivers will not be loaded.
TWR-MCF51CN User’s Manual Page 8 of 9
Freescale™ and the Freescale logo are trademarks of
Freescale Semiconductor, Inc. All other product or service names
are the property of their respective owners.
© Freescale Semiconductor, Inc. 2009. All rights reserved.
TWR-MCF51CN User’s Manual Page 9 of 9
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