User`s guide
Table Of Contents
- 1. PREFACE
- 2. CHECKLIST AND REQUIREMENTS
- 3. INSTALLATION AND USE
- 3.1 PROGRAMMER CHECK AND CONNECTION TO PC
- 3.2 PROGRAMMER FIRMWARE UPDATE
- 4. INTERFACE TYPES
- 5. WORKING WITH TARGET MCU
- 6. FILE OPERATIONS
- 7. ERRORS AND TROUBLESHOOTING
- 8. WARRANTY STATEMENT
- 9. APPENDIX
- Figure 2. In-Circuit programming schematic diagram for HC912/9S12 MCU
- Figure 3. In-Circuit wiring diagram for MC68HC912B32, 80-PIN QFP Package
- Figure 4. In-Circuit wiring diagram for MC68HC912D60/DG128, 112-PIN TQFP Package
- Figure 5. In-Circuit wiring diagram for MC68HC912D60A/DG128A, 112-PIN LQFP Package
- Figure 6. In-Circuit wiring diagram for MC68HC(9)12D60, 80-PIN QFP Package
- Figure 7. In-Circuit wiring diagram for MC68HC912D60A, 80-PIN QFP Package
- Figure 8. In-Circuit wiring diagram for MC9S12Dx64/Dx128/Dx256, 80-PIN QFP Package
- Figure 9. In-Circuit wiring diagram for MC9S12Dx64/Dx128/Dx256, 112-PIN LQFP Package
- Figure 10. In-Circuit wiring diagram for MC9S12H-Family 112-PIN LQFP Package
- Figure 11. In-Circuit wiring diagram for MC9S12H-Family 144-PIN LQFP Package
7. ERRORS AND TROUBLESHOOTING
This section describes most recently encountered problems, errors and fixing solutions.
Problem: LED D1 (see Figure 1) Dark.
Causes: This problem can accrue when external power supply connected to HC912-
Programmer is damaged or connected in wrong polarity.
Solutions: Check voltage on HC912-Programmer power clamps. It must be 12 V +/- 1V.
Problem: LED D1 (see Figure 1) Red.
Causes: These problem can appear in two cases: if HC912-Programmer is in the service
mode (JP1 removed) and if some error accrue while operation of HC912-
Programmer.
Solutions: Insert jumper JP1 (see Figure 1), remove adaptors from Motorola device socket
and cable from ICP connector, turn-off and than turn-on power supply connected
to HC912-Programmer. If LED D1 still red contact ETL technical support.
Error Message: MC68HC912 Programmer not found
Causes: This message can appear when HC912-Programmer software couldn’t
establish connection with HC912-Programmer board.
Solutions: Check connection of COM port cable from PC to HC912-Programmer
board. Apply power from external power supply to HC912-Programmer. In
menu item “Tools>Comm Port Options” select correct COM port number.
Error Message: Communication Error
Causes: This message can appear when Communication between HC912-
Programmer and PC is broken.
Solutions: Try to decrease communication baud rate in “Tools>Comm Port Options”
dialog window. Also this message can appear when COM port cable has
poor contact with DB-9 connectors.
Error Message: RESET Line must be in 'high' state
Causes: This message can appear when MCU Reset pin connected to ground through
external components or no oscillation on EXTAL, XTAL pins.
Solutions: Check MCU reset pin resistance relatively to VSS pin, and if it too low
check passive and active components connected. Or check integrity of
ceramic resonator and passive components connected to EXTAL, XTAL
pins.
Error Message: BKGD Line must be in 'high' state
Causes: This message can appear when MCU BKGD pin connected to ground
through external components.
Solutions: Cut any component from pin.
Error Message: Pin Tester Errors:
Causes: This message can appear in On-Board programming interface when some
pins has poor contact with QFP adaptor, or pins are damaged.
Solutions: Clean pins from colophony. Check contacts between adaptor and target
MCU pins. Check short circuits between pins to pins, pins to GND and pins
to VCC.
©ETL 2004-2006 MC68HC912/9S12 Programmer User’s Guide 12