Related Manuals for Axiom DEMO9S08LG32
Summary of Contents for Axiom DEMO9S08LG32
- Page 1 D O C - 0 4 6 9 - 0 1 0 , R E V DEMO9S08LG32 Demonstration Board for Freescale MC9S08LG32 Microcontroller USER GUIDE www.axman.com Web Site: support@axman.com Support:...
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Page 2: Table Of Contents
D E M O 9 S 0 8 L G 3 2 A P R I L 2 0 0 9 U S E R G U I D E CONTENTS CAUTIONARY NOTES ......................4 TERMINOLOGY ......................... 4 FEATURES ..........................5 REFERENCES ........................... - Page 3 REVISION Date Comments November 21, 2008 Initial Release Updated DEMO9S08LG32 connector pins, features, MCU I/O port, December 02, 2008 and demonstration board diagram. Minor updates to format and corrections to content . Added Notes and February 24, 2009 Caution boxes Updated COM_SEL header silk text.
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Page 4: 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. -
Page 5: Features
G U I D E FEATURES The DEMO9S08LG32 is a demonstration board for the MC9S08LG32 microcontroller. Application development is quick and easy with the integrated USB-BDM, sample software tools, and examples. An optional BDM_PORT port is also provided to allow use of a BDM_PORT cable. -
Page 6: References
2 0 0 9 U S E R G U I D E REFERENCES Reference documents are provided on the Axiom Support web site Acrobat Reader format. These documents may be accessed at www.axman.com/support. DEMO9S08LG32_UG.pdf DEMO9S08LG32 User Guide (this document) DEMO9S08LG32 _SCH_A.pdf... -
Page 7: Development Support
Multilink BDM and a 6-pin interface header (BDM_PORT). The BDM_PORT header allows connecting a HCS12/HCS08 BDM cable. Integrated BDM The DEMO9S08LG32 board features an integrated USB-Multilink BDM from P&E Microcomputer Systems. The integrated USB-Multilink BDM supports application development and debugging via background debug mode. -
Page 8: Power
5 6 VDD POWER The DEMO9S08LG32 uses several methods to apply power to the board. An option header allows selection between the various power inputs. For application development and debug, the board may be powered from the USB BDM. The 2.0mm, center-positive, barrel connector (VIN) supports stand-alone operation and higher power requirements. -
Page 9: Vx_En
D E M O 9 S 0 8 L G 3 2 A P R I L 2 0 0 9 U S E R G U I D E CAUTION: Total power from the USB-BDM is limited to 500 mA. Exceeding this limit violates the USB specification and will cause the USB bus to disconnect. -
Page 10: Reset Switch
TIMING The DEMO9S08LG32 internal timing source is active from RESET by default. An external 32 kHz XTAL oscillator, configured for low-power operation, is also provided. Refer to the MC9S08LG32 Reference Manual for details on configuring the selected timing source. -
Page 11: Com Connector
D E M O 9 S 0 8 L G 3 2 A P R I L 2 0 0 9 U S E R G U I D E RS-232 An RS-232 translator provides RS-232 to TTL/CMOS logic level translation on the COM connector. -
Page 12: Lcd
RXD position enables COM through the DB9 connector while the TXD position enables COM through the integrated USB-BDM. The DEMO9S08LG32 provides a 4 x 40 custom LCD glass connected directly to the target MCU. Refer to the MC9S08LG32 Reference Manual for details on use and configuration. -
Page 13: User I/O
User I/O function individually. Buzzer The DEMO9S08LG32 target board provides an externally modulated piezo-buzzer for audible applications. A push-pull drive circuit allows the target MCU to easily drive the buzzer at a center frequency of 2300 Hz. Figure 10 below shows the USER enable position and associated signal for the buzzer. -
Page 14: Potentiometer
PTH1 will cause a target board POR. User LED’s The DEMO9S08LG32 target board provides 8, green, LEDs for output indication. Each LED is configured for active-low operation. A series, current-limit resistor prevents excessive diode current. Figure 12 below shows the USER1 enable position and associated signal for each LED. -
Page 15: Pushbutton Switches
KBI5 with option jumper installed at PTH0; or, pressing pushbutton KBI6 with option jumper installed at PTH1 will cause a target board POR. Pushbutton Switches The DEMO9S08LG32 provides 8 push-button switches for user input. Each push-button switch is configured for active-low operation. No bias is applied to these push-button inputs. -
Page 16: Mcu I/O Port
D E M O 9 S 0 8 L G 3 2 A P R I L 2 0 0 9 U S E R G U I D E MCU I/O PORT The MCU I/O PORT connector provides access to the MC9S08LG32 I/O signals. Figure 14 below show the pin-out for the MCU I/O connector. -
Page 17: Lcd Enable Option Header
D E M O 9 S 0 8 L G 3 2 A P R I L 2 0 0 9 U S E R G U I D E LCD ENABLE OPTION HEADER The LCD Enable Option Header allows the user to disable any LCD signal to the LCD. This allows any signal to be used for a multiplexed function with out affecting the LCD. -
Page 18: Figure 15: Lcd Enable Option Header - Jp1
D E M O 9 S 0 8 L G 3 2 A P R I L 2 0 0 9 U S E R G U I D E Figure 15: LCD Enable Option Header – JP1 MCU Signal LCD Signal JP1 Pos # LCD Pin...