Digi BL1800 user manual Prototyping Board, Top Side

Page 80

B.3.2 Prototyping Board

To maximize the availability of Jackrabbit resources, the demonstration hardware (LEDs, switches, potentiometer, buzzer) on the Prototyping Board may be disconnected. This is done by cutting the traces seen between and within the silk-screen outline of headers JP1 and JP2 on the Prototyping Board. Figure B-6shows the 16 places where cuts should be

made. An exacto knife or high-speed precision grinder tool like a Dremel® tool would work nicely to cut the traces. Alternatively, if safety is a major concern, a small standard screwdriver may be carefully and forcefully used to wipe through the PCB traces.

Cut

Cut all gray

Cut

Cut

traces shown

Cut

J2

PB1

PB3

PB5

PB7

PCLK

PE7

PE5

PE3

PE1

GND

HV1

HV3

+RAW

VCC

LS1

R3

VCC

PA1

PA3

PA5

PA7

GND

Buzzer

3

2

Top Side

J3

COIL(+)

COIL()-

R1

+

1

GND PA0

PA2

PA4

JP1 PA6

DS1 PA0 GND

DS2 PA1 PB0

DS5 PA4 PB6

DS6 PA5 WDO

DS7 PA6 GND

DS8 PA7 PE6

S1 PB2 PE4

S2 PB3 PE2

S3 PB4 PE0

S4 PB5 HV0

GND GND HV2

K

GND

POT PE4

HV0

GND AD0

DS3 PA2

JP2

RT1

BZR VCC

K

AD0

PD0

DS4

Figure B-6. Where to Cut Traces to Permanently Disable

Demonstration Hardware on Prototyping Board

Jumpers across the appropriate pins on headers JP1 and JP2 can be used to reconnect spe- cific demonstration hardware later if needed. Each pin is labeled on the PCB to facilitate placing the jumpers. The jumper positions are summarized in Table B-1.

Table B-1. Prototyping Board Jumper Settings

	Header JP1			Header JP2 (continued)

Pins	Description		Pins		Description

1–2	Buzzer		5–6		PA2 to LED DS3

3–5	K to +5 V		7–8		PA3 to LED DS4

5–6	K to +RAW		9–10		PA4 to LED DS5

7–8	Potentiometer or Thermistor		11–12		PA5 to LED DS6

9–10	Interrupt Enable		13–14		PA6 to LED DS7

	Header JP2		15–16		PA7 to LED DS8

Pins	Description		17–18		PB2 to switch S1

1–2	PA0 to LED DS1		19–20		PB3 to switch S2

3–4	PA1 to LED DS2		21–22		PB4 to switch S3

76	Jackrabbit (BL1800)

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Contents Jackrabbit BL1800 Programmable Single-Board ComputerTrademarks Digi International IncTable of Contents Index Schematics Features IntroductionJackrabbit Features Development and Evaluation ToolsOnline Documentation How to Use This ManualAdditional Product Information Emissions CE ComplianceImmunity Interfacing the Jackrabbit to Other Devices SafetyDesign Guidelines General Jackrabbit BL1800 Development Kit Contents Getting StartedDevelopment Hardware Connections Board Attach Jackrabbit to Prototyping BoardConnect Programming Cable Assemble AC AdapterConnect Power Installing Dynamic C Troubleshooting Run a Sample ProgramTechnical Support Where Do I Go From Here?Real-Time Clock Subsystems BL1800Jackrabbit Pinouts HeadersDigital Inputs/Outputs Digital InputsDigital Outputs HV3 Sourcing OutputConfigurable High-Current Output Bidirectional I/O Changing HV3 to a Sinking OutputSchematic Diagram of A/D Converter A/D ConverterJackrabbit BL1800 Schematic Diagram of D/A Converters D/A ConvertersV ⋅ 1 e RC 1 DA1Typical DA1 Voltages for Various Duty Cycles 2 DA0 Typical DA0 Voltages for Various Duty CyclesUser’s Manual 2 RS-485 Serial Communication1 RS-232 Ground recommended Programming Port 485 R16User’s Manual Changing Between Program Mode and Run Mode Programming CableFlash Eprom MemorySram Clock Doubler Other HardwareExternal Interrupts Spectrum Spreader Jackrabbit BL1800 Software Reference An Overview of Dynamic CJackrabbit BL1800 Sample Programs Jackrabbit Sample ProgramsDEMOJR1.C Sample Program DEMOJR1.CSingle-Stepping Watch Expression Break PointWatching 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 Jackrabbit Function Calls 1 I/O DriversVoid 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 Electrical and Mechanical Specifications Figure A-1shows the mechanical dimensions for the JackrabbitTable A-1. Jackrabbit Board Specifications Exclusion Zone Exclusion ZonesFigure A-3. User Board Footprint for Jackrabbit Jumper Configurations Figure A-4. Location of Jackrabbit Configurable PositionsTable A-2. Jackrabbit Jumper Configurations Conformal Coating Conformally coated areaUse of Rabbit 2000 Parallel Ports JackrabbitTable A-3. Jackrabbit Pinout Configurations PD0 PD1 Jackrabbit BL1800 Appendix B. Prototyping Board Jackrabbit Connectors User LEDs Buzzer Prototyping Board OverviewPrototyping Board Features Mechanical Dimensions and Layout Top Side Using the Prototyping Board Top SideDemonstration Board RelayExisting Prototyping Board Top SidePE0 VCC HV0 SM1 SM0 HV2 Stat Jackrabbit BL1800 Appendix C. Power Management Power SuppliesDcin Current mA Batteries and External Battery Connections 950 mA·h = 5.4 years 20 µABattery Backup Circuit Figure C-5shows the Jackrabbit battery backup circuitryPower to Vram Switch Reset GeneratorFigure C-7shows a schematic of the chip select circuit Chip Select CircuitJackrabbit BL1800 Index SMODE0 SMODE1RABDB01.C RABDB02.C Schematics