TWR-MCF51CN
Contents
1. 2 freescale semicon ductor TWR MCFSICN User Manual Rev 1 1 Freescale Semiconductor Inc Microcontroller Solutions Group e LI oT 2 freescale semiconductor Contents EME 0 22 0 V2 W e Re SR D E EEEE EEEE 3 2 Reference DOCUMENUS ccccsssssssscecceccsssessceneccecsssescceeeeeeeneeesecsseeeeeeeeeeeecseeeeeeeeeeneccneeeeeensennensseeserensnnneessereeees 4 RD LE UE A AS US DCE UD NS SE ESS DS PERRET EE 4 COR ete ce ee 4 DZ OY SUS FOV CI D MaMa A IeTLERAAaN 4 DOS TAT IO a tn 4 3 4 RS232 INTErfACE rciceccsscsscssccsssssccssccsecsecceccsesssccseccsccsacssccsassaccsaesaeesaeeaecsassaecsaesaeesaesaeesaesaeesaueaeusaacaeesaeeaeesaeeaeesaseuesnseseesaseaseans 5 3 DRICA tOr CONN OCUOIS beasna rate nd la nd ann 5 3 6 Mechanical Form PACE a a ee eee ee 5 4 Jumper Pa ce E E E E 5 5 Input Output Connectors and Pin Usage Table snssnnnnmmnnnnnnnmnts 6 CODE ee a a ie 7 01 BONE MO a 6 e 7 6 2 Stand Alone Debug Interface cing o scsssssscssscssessscssesssnsseecsnssrecsssseecsseseecsseseensseseenseacensasesseseensseaeonssestsnsseaeensasareas 7 Revision History Revision Date Changes May 15 2009 Initial Release i BDM July 8 2009 sr Connector amp Pin Usage table added OS TWR MCF51CN User s Manual Page 2 of 8 e S a Z freescale semiconductor 1 Overview The MCF51CN Tower MCU Module TWR MCF51CN is a low cost evaluation demonstration and development board The TWR MCF51CN can op2. 3 Hardware Features This section provides more details about the features and functionality of the TWR MCF51CN 3 1 Clocking Three options are provided for clocking the MCF51CN128 device 1 32 768 KHz crystal 2 25 MHz crystal 3 External clock input from Primary Elevator CLOCKINO Selection of the clock input is determined by the J11 and J12 settings The 25 MHz crystal option is selected by default Refer to Table 1 for more details 3 2 System Power The TWR MCF51CN can be powered by the OSBDM circuit via the Mini B USB connector J14 ora Functional Elevator via the Mini B USB connector J5 A standard USB A male to Mini B male cable supplied 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 J6 can be used to isolate the 3 3V supply from the microcontroller This connection can be used to measure the power usage of the MCF51CN microcontroller 3 3 Debug Interface An on board MC9SO8JM60 based Open Source BDM OSBDM circuit provides a debug interface to the MCF51CN A standard USB A male to Mini B male cable supplied can be used for debugging via TWR MCF51CN User s Manual Page 4 of 8 Ax oe 2 freescale semiconductor the USB connector J14 Refer to se
3. _C B60 Ba Lie a Connect PTE0 KBI2P0 MISO2 ADP2 to SPI1_ MISO OFF setting isolates signals 9 6 B11 and IRQ_B B61 from Primary Elevator Connect PTD3 RGPIO3 RXD2 ADP4 to RXD1 A43 Fea Connect PTD2 RGPIO2 TXD2 ADP5 to TXD1 A44 Connect PTD1 RGPIO1 RXD1 ADP6 to RXDO A41 and J10 Pare Connect PTD0 RGPIOO TXD1 ADP7 to TXDO A42 and J9 TWR MCF51CN User s Manual Page 5 of 8 2 freescale semiconductor Connect PTH3 FB_D6 TPM2CHO0 to LED4 3 4 Connect PTE5 KBI2P5 IRQ TPM1CH2 to LED3 5 6 Connect PTG5 KBI1P5 FB_D3 to LED2 Connect PTE3 KBI2P3 TPM1CHO to LED1 9 10 Accelerometer Z axis PR ee OSES 11 12 Accelerometer Y axis Connect PTE2 KBI2P2 SS2 ADP0 to Accelerometer 13 14 X axis ON Supply 3 3V to MCU MCU Power Isolate MCU from Power current measurement OFF option 1 2 Route RXD1 to RS232 transceiver no EXTAL Selection 1 2 25MHz Cryst O 00 O O 32 768KHz Crystal XTAL Selection R Latch Disabled TEEN Latch Disabled ee Latch Enabled OSBDM Bootloader Select Bootloader mode OFF Debugger mode Z o Z o o UART TXD1 Routing Selection 5 Input Output Connectors and Pin Usage Table The following tables provides details on which MCF51CN pins are using to communicate with the TWR MCF51CN sensors LEDs switches and other I O interfaces Table 2 I O Connectors and Pin Usage Table TWR MCF51CN MCF51CN128 I O Component I O Label Default Function Alternate 1 Alt
4. ction x for information on other modes of operation of the OSBDM 3 4 RS232 Interface An RS232 transceiver on the TWR MCF51CN connects to a standard 2x5 pin header Selection jumpers J9 and J10 allow SCI signals to be routed to either the RS232 transceiver or the OSBDM circuit Refer to Table 1 for more details 3 5 Elevator Connections The TWR MCF51CN 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 MCF51CN while the Secondary Elevator connector only makes connections to ground GND The pinout details for the TWR MCF51CN can be found in the TWR MCF51CN Module Pinout document 3 6 Mechanical Form Factor The TWR MCFSICN 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 Table 1 TWR MCF51CN Jumper Table Setting Description PTD7 RGPIO7 SPSCK2 ADP3 Connect to DIP Switch Position 1 Usage Selection nl Connect to Potentiometer Only connected to Primary Elevator SPI1_ CLK B7 Connect PTE2 KBI2P2 SS2 ADP0 to SPI1_CS0O B9 1 2 and IRQ_D B59 Connect PTE1 KBI2P1 MOSI2 ADP1 to SPI1_MOSI B10 and IRQ
5. erate stand alone or as the main control board ina Tower system with peripheral modules The following list summarizes the features of the TWR MCF51CN Tower compatible microcontroller module MCF51CN128 in an 80 LQFP package MC9S08JM60 based Open Source Debug OSBDM circuit 4 user controlled LEDs Two DIP Switches and three 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 MCF51CN is shown in the figure below Tower Elevator Expansion Connectors SPI C ADC FEC TPM SCI KBI Mini Flexbus etc 25 MHz or 32 768 KHz USB Mini AB 10 Pin RS232 Header XCVR s A Freescale Device E External Connectors Interface Circuits Power Figure 1 TWR MCF51JCN Block Diagram TWR MCF51CN User s Manual Page 3 of 8 2 freescale semiconductor 2 Reference Documents The documents listed below should be referenced for more information on the Freescale Tower system and the TWR MCF51CN Refer to http www freesale com tower for the latest revision of all Tower documentation e Freescale Tower Electromechanical Specification e TWR MCF51CN Module Pinout e TWR MCF51CN Schematics e TWR MCF51CN Quick Start Guide e TWR MCF51CN KIT Lab Tutorial e MCF51CN128 Reference Manual e MCF51CN128 Data Sheet e AN3561 USB Bootloader for the MC9SO8JM60
6. ernate 2 Alternate 3 EEUE Push Button eb Lens pres Keeps RQ TPMICH2 PEER ee TWR MCF51CN User s Manual Page 6 of 8 2 freescale semiconductor RS232 T1IN PTDO RGPIOO TXD1 ADP7 ICL3232 R1OUT PTD1 RGPIO1 RXD1 ADP6 OSBDM TXD1 PTD1 RGPIO1 RXD1 ADP6 USB to Serial RXD1 PTDO RGPIOO TXD1 ADP7 Note Refer to Section 2 3 Pin Mux Controls in MCF51CN128 Reference Manual to configure pin to appropriate alternate function All pins default to Default Function out of reset 6 OSBDM 6 1 Bootloader Mode The MC9S08JM60 device used in the OSBDM circuit is preprogrammed with OSBDM debugger firmware and a USB Bootloader Jumper J16 determines which application will run following a power on reset If Bootloader Mode is chosen jumper ON J16 the bootloader will be executed allowing in circuit reprogramming of the JM60 flash memory via USB This enables the OSBDM firmware to be upgraded by the user when upgrades become available For details on the USB Bootloader refer to Application Note AN3561 on the Freescale website http www freescale com 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 O
7. therwise the JM60 USB device will not be recognized and the proper drivers will not be loaded 6 2 Stand Alone Debug Interface The OSBDM circuit is designed so that it can program the on board MCF51CN device or be isolated from the on board circuitry and be used as a programmer for other ColdFire V1 devices The steps necessary to operate the OSBDM in this mode are listed here 1 Remove 0 ohm resistor SH1 2 Connect J8 2x3 header from TWR MCF51CN to target debug connector TWR MCF51CN User s Manual Page 7 of 8 2 freescale semiconductor E a FE 2 d x nu freescale SEAT 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 8 of 8
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