Digi BL1800 user manual Run a Sample Program, Troubleshooting

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2.4 Run a Sample Program

If you already have Dynamic C installed, you are now ready to test your programming connections by running a sample program. Start Dynamic C by double-clicking on the Dynamic C icon on your desktop or in your Start menu. Dynamic C uses the serial port specified during installation.

If you are using a USB port to connect your computer to the BL1810, click on the Commu- nications tab and verify that Use USB to Serial Converter is selected to support the USB programming cable. Click OK.You may have to determine which COM port was assigned to the RS-232/USB converter. Open Control Panel > System > Hardware > Device Man- ager > Ports and identify which COM port is used for the USB connection. In Dynamic C, select Options > Project Options, then select this COM port on the Communications tab, then click OK. You may type the COM port number followed by Enter on your com- puter keyboard if the COM port number is outside the range on the dropdown menu.

Find the file PONG.C, which is in the Dynamic C SAMPLES folder. To run the program, open it with the File menu, compile it using the Compile menu, and then run it by selecting Run in the Run menu. The STDIO window will open on your PC and will display a small square bouncing around in a box. This program shows that the CPU is working.

2.4.1 Troubleshooting

If Dynamic C cannot find the target system (error message "No Rabbit Processor Detected."):

•Check that the BL1810 is powered correctly — the AC adapter should be connected to header J1 on the Jackrabbit board and should be plugged in to a wall outlet.

•Check both ends of the programming cable to ensure that they are firmly plugged into the PC and that the PROG connector, not the DIAG connector, is plugged in to the programming port on the BL1810 with the colored side lined up with pin 1.

•Ensure that the BL1810 is firmly and correctly installed in its sockets on the Prototyp- ing Board.

•Select a different COM port within Dynamic C. From the Options menu, select Project Options, then select another COM port from the list on the Communications tab, then click OK. Press <Ctrl-Y>to force Dynamic C to recompile the BIOS.

If a program compiles and loads, but then loses target communication before you can begin debugging, it is possible that your PC cannot handle the default debugging baud rate. Try lowering the debugging baud rate as follows.

•Locate the Serial Options dialog in the Dynamic C Options > Project Options > Communications menu. Choose a lower debug baud rate, then click OK.

User’s Manual

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Contents Programmable Single-Board Computer Jackrabbit BL1800Digi International Inc TrademarksTable of Contents Index Schematics Introduction FeaturesDevelopment and Evaluation Tools Jackrabbit FeaturesOnline Documentation How to Use This ManualAdditional Product Information Emissions CE ComplianceImmunity Interfacing the Jackrabbit to Other Devices SafetyDesign Guidelines General Jackrabbit BL1800 Getting Started Development Kit ContentsDevelopment Hardware Connections Attach Jackrabbit to Prototyping Board BoardAssemble AC Adapter Connect Programming CableConnect Power Installing Dynamic C Run a Sample Program TroubleshootingTechnical Support Where Do I Go From Here?Real-Time Clock BL1800 SubsystemsHeaders Jackrabbit PinoutsDigital Inputs Digital Inputs/OutputsHV3 Sourcing Output Digital OutputsConfigurable High-Current Output Changing HV3 to a Sinking Output Bidirectional I/OA/D Converter Schematic Diagram of A/D ConverterJackrabbit BL1800 D/A Converters Schematic Diagram of D/A Converters1 DA1 V ⋅ 1 e RCTypical DA1 Voltages for Various Duty Cycles Typical DA0 Voltages for Various Duty Cycles 2 DA0User’s Manual 2 RS-485 Serial Communication1 RS-232 Ground recommended 485 R16 Programming PortUser’s Manual Programming Cable Changing Between Program Mode and Run ModeFlash Eprom MemorySram Clock Doubler Other HardwareExternal Interrupts Spectrum Spreader Jackrabbit BL1800 An Overview of Dynamic C Software ReferenceJackrabbit BL1800 Jackrabbit Sample Programs Sample ProgramsSample Program DEMOJR1.C DEMOJR1.CWatch Expression Break Point Single-SteppingWatching Variables Dynamically Summary of FeaturesEditing the Program User’s Manual Other Sample Programs Illustrating Digital I/O R/W pin and DB0-DB3 on 3 RS-232 Serial Communication Sample Programs 4 RS-485 Serial Communication Sample Program Cooperative Multitasking Int vswitch Advantages of Cooperative Multitasking 1 I/O Drivers Jackrabbit Function CallsVoid digOutint channel, int value Void anaOutint channel, int value Void anaInint channel, int *value Serial Communication Drivers Add-On Modules Upgrading Dynamic CPatches and Bug Fixes Appendix A. Specifications Figure A-1shows the mechanical dimensions for the Jackrabbit Electrical and Mechanical SpecificationsTable A-1. Jackrabbit Board Specifications Exclusion Zones Exclusion ZoneFigure A-3. User Board Footprint for Jackrabbit Figure A-4. Location of Jackrabbit Configurable Positions Jumper ConfigurationsTable A-2. Jackrabbit Jumper Configurations Conformally coated area Conformal CoatingJackrabbit Use of Rabbit 2000 Parallel PortsTable A-3. Jackrabbit Pinout Configurations PD0 PD1 Jackrabbit BL1800 Appendix B. Prototyping Board Prototyping Board Overview Jackrabbit Connectors User LEDs BuzzerPrototyping Board Features Top Side Mechanical Dimensions and LayoutTop Side Using the Prototyping BoardRelay Demonstration BoardExisting Top Side Prototyping BoardPE0 VCC HV0 SM1 SM0 HV2 Stat Jackrabbit BL1800 Power Supplies Appendix C. Power ManagementDcin Current mA 950 mA·h = 5.4 years 20 µA Batteries and External Battery ConnectionsFigure C-5shows the Jackrabbit battery backup circuitry Battery Backup CircuitReset Generator Power to Vram SwitchChip Select Circuit Figure C-7shows a schematic of the chip select circuitJackrabbit BL1800 SMODE0 SMODE1 IndexRABDB01.C RABDB02.C Schematics
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