Digi BL1800 user manual Ground recommended

Page 33

U1

GND	J1
GND	J2
VIN GND

J3

U1

GND	J1
GND	J2
VIN GND

J3

U1

GND	J1
GND	J2
VIN GND

J3

			U4
	J4		-232		J5
	J4		RS		J5
			RS	VCC	GND
GND	VCC			VCC	GND
PA0	PA1			RXB	RXC
PA2	PA3	U5		TXB	TXC
PA4	PA5			PC0	PC1
PA6	PA7	U3		PC2	PC3
GND	GND	U3		PC4	PC5
GND	GND		SRAM	PC4	PC5
PB0	PB1		SRAM	PC6	PC7
PB0	PB1			PC6	PC7
PB2	PB3	Rabbit 2000		AD0	AGND	Ground recommended
PB6	PB7	Rabbit 2000		PD0	PD1	Ground recommended
PB4	PB5			DA0	DA1
WDO	PCLK			PD2	PD3
GND	PE7			PD4	PD5
PE6	PE5			PD6	PD7
PE4	PE3			GND	GND
PE2	PE1			485–	485+
PE0	GND		U6	VCC	VCC
HV0	HV1		U6	SM0	SM1
HV0	HV1			SM0	SM1
HV2	HV3			IOBEN	STAT
K	+RAW		RS-485	GND	VBAT
GND	VCC	Y3	RS-485	/RST	GND
		Y3
					RESET
	JACKRABBIT Z-World, Inc.
			U4
	J4		-232		J5
	J4		RS		J5
			RS	VCC	GND
GND	VCC			VCC	GND
PA0	PA1			RXB	RXC
PA2	PA3	U5		TXB	TXC
PA4	PA5			PC0	PC1
PA6	PA7	U3		PC2	PC3
GND	GND	U3		PC4	PC5
GND	GND		SRAM	PC4	PC5
PB0	PB1		SRAM	PC6	PC7
PB0	PB1			PC6	PC7
PB2	PB3			AD0	AGND
PB4	PB5	Rabbit 2000		DA0	DA1
PB6	PB7	Rabbit 2000		PD0	PD1
PB6	PB7			PD0	PD1
WDO	PCLK			PD2	PD3
GND	PE7			PD4	PD5
PE6	PE5			PD6	PD7
PE4	PE3			GND	GND
PE2	PE1			485–	485+
PE0	GND		U6	VCC	VCC
HV0	HV1		U6	SM0	SM1
HV0	HV1			SM0	SM1
HV2	HV3			IOBEN	STAT
K	+RAW		RS-485	GND	VBAT
GND	VCC	Y3	RS-485	/RST	GND
		Y3
					RESET
	JACKRABBIT Z-World, Inc.
			U4
	J4		-232		J5
	J4		RS		J5
			RS	VCC	GND
GND	VCC			VCC	GND
PA0	PA1			RXB	RXC
PA2	PA3	U5		TXB	TXC
PA4	PA5			PC0	PC1
PA6	PA7	U3		PC2	PC3
GND	GND	U3		PC4	PC5
GND	GND		SRAM	PC4	PC5
PB0	PB1		SRAM	PC6	PC7
PB0	PB1			PC6	PC7
PB2	PB3			AD0	AGND
PB4	PB5	Rabbit 2000		DA0	DA1
PB6	PB7	Rabbit 2000		PD0	PD1
PB6	PB7			PD0	PD1
WDO	PCLK			PD2	PD3
GND	PE7			PD4	PD5
PE6	PE5			PD6	PD7
PE4	PE3			GND	GND
PE2	PE1			485–	485+
PE0	GND		U6	VCC	VCC
HV0	HV1		U6	SM0	SM1
HV0	HV1			SM0	SM1
HV2	HV3			IOBEN	STAT
K	+RAW		RS-485	GND	VBAT
GND	VCC	Y3	RS-485	/RST	GND
		Y3
					RESET

JACKRABBIT Z-World, Inc.

Figure 11. Multidrop Jackrabbit Network

User’s Manual

29

Image 33

Contents Programmable Single-Board Computer Jackrabbit BL1800Digi International Inc TrademarksTable of Contents Index Schematics Introduction FeaturesDevelopment and Evaluation Tools Jackrabbit FeaturesHow to Use This Manual Additional Product InformationOnline Documentation CE Compliance ImmunityEmissions Safety Design Guidelines GeneralInterfacing the Jackrabbit to Other Devices 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 TroubleshootingWhere Do I Go From Here? Real-Time ClockTechnical Support 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 Serial Communication 1 RS-2322 RS-485 Ground recommended 485 R16 Programming PortUser’s Manual Programming Cable Changing Between Program Mode and Run ModeMemory SramFlash Eprom Other Hardware External InterruptsClock Doubler 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-SteppingSummary of Features Editing the ProgramWatching Variables Dynamically 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 Upgrading Dynamic C Patches and Bug FixesAdd-On Modules 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