Related Manuals for Axiom DEMO908LB8
Summary of Contents for Axiom DEMO908LB8
- Page 1 D O C - 0 3 4 1 - 0 1 0 , R E V DEMO908LB8 Demonstration Board for Freescale 68HC908LB8 Axiom Manufacturing • 2813 Industrial Lane • Garland, TX 75041 Email: Sales@axman.com Web: http://www.axman.com...
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Page 2: Table Of Contents
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 CONTENTS CAUTIONARY NOTES ......................4 TERMINOLOGY.........................4 FEATURES ..........................5 REFERENCE ..........................6 OPERATING MODES ........................6 RUN MODE ........................... 6 MON08 MODE ........................7 SOFTWARE DEVELOPMENT ....................7 MEMORY MAP ..........................8 DEVELOPMENT SUPPORT ......................8... - Page 3 D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 FIGURES Figure 1: Memory Map .......................8 Figure 2: MON08 Debug Port .....................9 Figure 3: DEBUG Connector ......................9 Figure 4: MON08 Setup......................10 Figure 5: TB1 Terminal Block Connector..................11 Figure 6: PWR_SEL Jumper Settings..................12 Figure 7: OSC_EN Option Header ...................13...
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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
2 4 , 2 0 0 5 FEATURES The DEMO908LB8 is an evaluation or demonstration board for the Freescale 68HC908LB8 microcontroller. Application development is quick and easy with the included DB9 serial cable, sample software tools, and examples. A MON08 port is provided for development tool application support and is compatible with HC08 monitor interface cables and software. -
Page 6: Reference
OPERATING MODES The DEMO908LB8 board operates in two basic modes Run Mode, or MON08 Debug Mode. Run Mode supports user application operation from Power-On or Reset. MON08 Debug Mode supports the development and debug of applications via the embedded debug monitor. See the related sections below for quickly starting the board in the desired operation mode. -
Page 7: Mon08 Mode
Software development will require the use of an HC08 assembler or compiler and a host PC operating a MON08 debug interface. Supplied with this board is the CodeWarrior Develop- ment Studio for HC(S)08 along with the Axiom MON08 IDE for Windows for Debugging and Flash programming. -
Page 8: Memory Map
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 MEMORY MAP Figure 1: Memory Map 0x0000 IO Registers 59 bytes 0x0058 Unimplemented 0x0080 128 bytes 0x00FF Unimplemented 0X037E Flash Programming 674 bytes... -
Page 9: Debug Connector
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 Figure 2: MON08 Debug Port See the HC08 Reference Manual for complete MON08 documentation PTA3/RST* PTA2/IRQ* PTA0 10 PTA4 12 PTA1 PTA5/OSC1 13 DEBUG Connector... -
Page 10: Power
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 Figure 4: MON08 Setup MON_EN ON/OFF Enables MON08 communication through DEBUG connector. On for serial access via DEBUG connector off for MON08 cable ac- cess VTST_EN Force MON08 Monitor Mode. -
Page 11: J1 Power Input
The current limit of the regulator must be considered when using this feature. PWR_SEL Power routing on the DEMO908LB8 is determined by the PWR_SEL option header. The PWR_SEL header is also be used to configure the board to supply voltage to off-board cir- cuitry. -
Page 12: Reset Switch
FIG2 configuration register. The MCU may be configured to output the internal oscillator fre- quency on the OSC2 pin. See MCU datasheet for configuration details. A 9.8304 MHz clock oscillator at X1 provides alternate timing to the DEMO908LB8. The clock oscillator exhibits a 100-ppm frequency tolerance. The external clock oscillator produces a 2.46 MHz internal operating frequency. -
Page 13: Opamp_En
PTB6 (U1012) USER OPTIONS The DEMO908LB8 provides 2 push-button switches, 2 LED indicators, a potentiometer, and a photocell circuit for use in application development. The photocell is connected to a gain stage amplifier internal to the MCU. The USER_EN option header allows each option to be enabled or disabled individually. -
Page 14: Pushbutton Switches
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 Pushbutton Switches Two push button switches provide momentary, active low input for use in application develop- ment. Both switches are pulled-up external to the MCU. SW1 and SW2 are enabled to the HC08 I/O ports by the USER option bank. -
Page 15: Figure 8: Mcu Io Connector
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 Figure 8: MCU IO Connector PTC2/SHTDWN/IRQ* PTA5/RST*/BKI5 PTA0/ADC0/KBI0 PTC0/OSC1 PTA1/ADC1/KBI1 PTC1/OSC2 PTA2/ADC2/KBI2 PB2/FAULT PTA3/ADC3/KBI3 PTB5/V+ PTB3/PWM0 PTB56/V- PTB4/PWM1 PTB7/VOUT/ADC6/FAULT PTB0/TOP PTA4/ADC4/KBI4... -
Page 16: Bill Of Materials
D E M O 9 0 8 L B 8 M A R C H 2 4 , 2 0 0 5 APPENDIX A BILL OF MATERIALS Item Qty Title Ref(m) Mfr-P/N Cap, Tant, 10uF, 10V, SMB C5, C13, C15 TAJB106K010R Cap, Mon, 1uF, 16V, 0805 C8, C8, C9, C18, C20... - Page 17 2 0 0 5 Conn, 2x8 Pin Header, .1" Ctr, Thru MON08 Socket, IC, 20 DIP, MP Hdw, Shunt, 2 Pos, .1" Generic Hdw, Stand-off, .250x.375, Hex, Alum Keystone 2202 Hdw, Screw, 4-40x3/8, 18-8, SS PCB, DEMO908LB8, 2 layer, 1.6 x 2.2...
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