Arm Enterprises IM-AD1 manual Reference Design Example

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Reference Design Example

The SSP interrupt is the combined interrupt from the SSP PrimeCell. Refer to ARM PrimeCell Synchronous Serial Port (PL022) Technical Reference Manual for details of the interrupt sources.

The STEP1, STEP2, STEP3, and STEP4 interrupts are set active when the buffer registers of the corresponding stepper motor controller are empty. This indicates that a new step instruction can be written. The interrupts are cleared if the stepper controller buffer registers are holding a step instruction that is waiting to be carried out.

The CAN1 and CAN2 interrupts are interrupt signals from the CAN controller chips. The interrupt signals are a combination of interrupts from different sources within the CAN controller. Refer to the data sheet for the Bosch CC770 for details of the interrupt sources.

The ADC1 and ADC2 interrupts are generated from the BUSY signal of the corresponding AD7859 A/D converter chip. The ADC1 and ADC2 interrupts signal that the ADC has finished its conversion and the value can be read. The interrupt is set active when the BUSY signal falls at the end of a conversion. The interrupt is cleared by any read access to the ADC.

Note

The BUSY signal goes active during the power-on calibration of the ADC chips. That is, the ADC1 and ADC2 interrupts are set after power-on and the interrupts must be cleared by doing a dummy read access to the ADCs.

ARM DUI 0163B

Copyright © 2001-2003. All rights reserved.

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Contents Integrator/IM-AD1 User Guide Integrator/IM-AD1Conformance Notices Copyright 2001-2003. All rights reserved Chapter Introduction Integrator/IM-AD1 User GuideAppendix a Signal Descriptions Preface Intended audience Using this bookAbout this book ARM publications Typographical conventionsFurther reading Third-party documents Feedback on the Integrator/IM-AD1 FeedbackFeedback on this document Xii Introduction ARM DUI 0163B About the Integrator/IM-AD1Integrator/IM-AD1 layout Features Interface module features and architectureArchitecture Integrator/IM-AD1 block diagramLinks and LEDs Config LEDCare of modules Introduction Copyright 2001-2003. All rights reserved Getting Started Assembled Integrator development system Fitting the interface moduleSwitch 2 Closed Switch 3 Open Switch 4 Open Setting up the logic moduleRunning the test software Hardware Reference Hardware Reference Description Serial interface signal assignment Signal nameConnector Uart interfaceSerial connector signal assignment Pin J18 Type Description Serial connector pinoutSPI SPI signals SignalPWM interface PWM interface signals SignalPWM connector signals Pin J14 J10 Description Shows the signal assignmentFunctional description Stepper motor interfaceTherefore, with a 0.1Ω sense resistor fitted Stepper motor interface signal summaryStepper motor interface signals Stepper motor connectorsVSS Stepper motor connector signals Pin J19 J23 DescriptionGpio Gpio connectors J16 and J17Hardware Reference Buffer Can interfaceU13 Can interface signal assignment Signal IMBBANK30 IMBBANK28IMBBANK29 GND Can connector signal assignments Pin10 ADC and DAC interface architecture ADC and DAC interfacesIMABANK51 IMABANK48IMABANK49 IMABANK5011shows the pinout of the ADC interface connector J1 12 shows the pinout of the DAC interface connector J2 Hardware Reference Copyright 2001-2003. All rights reserved Reference Design Example Example architecture About the design exampleAbout PrimeCells File Description Vhdl file descriptionsExample memory map Integrator system memory map Address assignment of logic modulesIntegrator/IM-AD1 memory map Device Address Integrator/IM-AD1 memory mapLogic module addresses Position Bits Stack Ssram StepperbGpioa GpiobOffset address Name Type Function Example APB register peripheralLogic module registers Oscillator divisor registers VDW LMOSCx registers Bits Name Access FunctionRDW Push button interrupt register Bits Name Access FunctionOscillator lock register User LEDs control registerSwitches register Uart SPICS0 SPI chip select registerSPICS2 SPICS1Synchronous serial port PWM controller Count Offset Name Access Function AddressStepper motor peripheral ContStepper x control register DIR DocountSinglestep Stepx speed register Stepx count registerRead data input register Read data output pinsAddress offset Name Access Size Function Data output set registerGpio direction control 1 bit Data directionSsram interface CAN1 Vectored interrupt controllerInterrupt sources Interrupt Interrupt source Source numberReference Design Example CANxBase Can reset control registerCanreset Can controller interfaceADC2BUSY ADC and DAC interface16 ADC and DAC interface registers AdcstatusBits Name Function Peripheral information block18 PIB entry format Signal Descriptions Expa Pin label Signal Description Table A-1 AHB signal assignmentExpb Pin label Name Description Table A-2 Expb signal descriptionExpim LM-EP20K1000E Description Table A-3 Expim signal descriptionsLabel Figure A-4 J7 pin locations Logic analyzer connectorCLK1 Table A-4 J7 connector pinout Signal PinMulti-ICE Jtag Figure A-5 Multi-ICE connector pinoutMechanical Specification Mechanical information Figure B-1 Board dimensions top viewFigure B-2 Bottom board dimensions viewed from top side DB9STRAIGHT FCI Connector referenceDB9DUAL Multi-ICE GlossarySynchronous Serial Port Gpio IndexADC Can DACLmleds Lmlock LMOSC1 Expa A-2Gpiodataclr Gpiodatain Gpiodataout Gpiodataset Gpiodirn