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Spectrum Digital eZdsp R2812 USB Technical Reference

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TM
eZdsp
R2812 USB
Technical
Reference
2004
DSP Development Systems

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Summary of Contents for Spectrum Digital eZdsp R2812 USB

  • Page 1 eZdsp R2812 USB Technical Reference 2004 DSP Development Systems...

  • Page 3: Technical Reference

    R2812 USB Technical Reference 507715-0001 Rev. B September 2004 SPECTRUM DIGITAL, INC. 12502 Exchange Dr., Suite 440 Stafford, TX. 77477 Tel: 281.494.4505 Fax: 281.494.5310 sales@spectrumdigital.com www.spectrumdigital.com...
  • Page 4 IMPORTANT NOTICE Spectrum Digital, Inc. reserves the right to make changes to its products or to discontinue any product or service without notice. Customers are advised to obtain the latest version of relevant information to verify data being relied on is current before placing orders.

  • Page 5: Table Of Contents

    Contents Introduction to the eZdsp R2812 ..........1-1 Provides a description of the eZdsp R2812, key features, and board outline.
  • Page 6 List of Figures Figure 1-1, Block Diagram eZdsp R2812 ........1-3 Figure 2-1, eZdsp R2812 PCB Outline .
  • Page 7 About This Manual This document describes board level operations of the eZdsp R2812 based on the Texas Instruments TMS320R2812 Digital Signal Processor. The eZdsp R2812 is a stand-alone module permitting engineers and software developers evaluation of certain characteristics of the TMS320R2812 DSP to determine processor applicability to design requirements.

  • Page 9: Introduction To The Ezdsp

    Chapter 1 Introduction to the eZdsp R2812 This chapter provides a description of the eZdsp for the TMS320R2812 Digital Signal Processor, key features, and block diagram of the circuit board. Topic Page Overview of the eZdsp R2812 Key Features of the eZdsp R2812 Functional Overview of the eZdsp R2812...

  • Page 10: Functional Overview Of The Ezdsp Tm R2812

    Spectrum Digital, Inc 1.0 Overview of the eZdsp R2812 The eZdsp R2812 is a stand-alone card--allowing evaluators to examine the TMS320R2812 digital signal processor (DSP) to determine if it meets their application requirements. Furthermore, the module is an excellent platform to develop and run software for the TMS320R2812 processor.

  • Page 11: Figure 1-1, Block Diagram Ezdsp

    Spectrum Digital, Inc Figure 1-1 shows a block diagram of the basic configuration for the eZdsp R2812. The major interfaces of the eZdsp are the JTAG interface, and expansion interface. 30 Mhz. XTAL1/OSCIN CLOCK ANALOG TO DIGITAL CONVERTER USB PORT...
  • Page 12 Spectrum Digital, Inc eZdsp R2812 Technical Reference...

  • Page 13: Operation Of The Ezdsp Tm R2812

    Chapter 2 Operation of the eZdsp R2812 This chapter describes the operation of the eZdsp R2812, key interfaces and includes a circuit board outline. Topic Page The eZdsp R2812 Operation The eZdsp R2812 Board 2.1.1 Power Connector eZdsp R2812 Memory 2.2.1 Memory Map 2.2.2...

  • Page 14: Figure 2-1, Ezdsp Tm R2812 Pcb Outline

    Spectrum Digital, Inc 2.0 The eZdsp R2812 Operation This chapter describes the eZdsp R2812, key components, and operation. Information on the eZdsp’s various interfaces is also included. The eZdsp R2812 consists of four major blocks of logic: • Analog Interface Connector •...
  • Page 15 Spectrum Digital, Inc 2.1.1 Power Connector The eZdsp R2812 is powered by a 5-Volt only power supply, included with the unit. The unit requires 500mA. The power is supplied via connector P6. If expansion boards are connected to the eZdsp, a higher amperage power supply may be necessary.

  • Page 16: Memory Map

    Spectrum Digital, Inc 2.2.1 Memory Map The figure below shows the memory map configuration on the eZdsp R2812. Figure 2-2, eZdsp R2812 Memory Space eZdsp R2812 Technical Reference...

  • Page 17: External Memory Timing

    Spectrum Digital, Inc 2.2.2 External Memory Timing This section describes the timing for the external memory bus when the R2812 is operating at 150 Mhz. In addition a segment of ‘C’ code is provided to configure the EMIF. Table 2: External Memory Timing Memory Time in ns.

  • Page 18: Ezdsp Tm R2812 Connectors

    Spectrum Digital, Inc 2.3 eZdsp R2812 Connectors The eZdsp R2812 has five connectors. Pin 1 of each connector is identified by a square solder pad. The function of each connector is shown in the table below: Table 3: eZdsp R2812 Connectors...

  • Page 19: P1, Jtag Interface

    Spectrum Digital, Inc 2.3.1 P1, JTAG Interface The eZdsp R2812 is supplied with a 14-pin header interface, P1. This is the standard interface used by JTAG emulators to interface to Texas Instruments DSPs. The positions of the 14 pins on the P1 connector are shown in the diagram below as viewed from the top of the eZdsp.

  • Page 20: P2, Expansion Interface

    Spectrum Digital, Inc WARNING ! The TMS320R2812 supports +3.3V Input/Output levels which are NOT +5V tolerant. Connecting the eZdsp to a system with +5V Input/Output levels will damage the TMS320R2812. If the eZdsp is connected to another target then the eZdsp must be powered up first and powered down last to prevent lactchup conditions.
  • Page 21 Spectrum Digital, Inc The definition of P2, which has the I/O signal interface is shown below. Table 5: P2, Expansion Interface Connector Pin # Signal Pin # Signal +3.3V/+5V/NC * +3.3/+5V/NC * XD10 XD11 XD12 XD13 XD14 XD15 XA10 XA11...

  • Page 22: P3, Usb Port/Jtag Interface

    Spectrum Digital, Inc 2.3.3 P3, USB Port/JTAG Interface The eZdsp R2812 uses a custom USB port JTAG interface device. The device has direct access to the integrated JTAG interface. Drivers for C2000 Code Composer tools are shipped with the eZdsp modules 2.3.4 P4/P8/P7, I/O Interface...
  • Page 23 Spectrum Digital, Inc The pin definition of P4/P8 connectors are shown in the table below. Table 6: P4/P8, I/O Connectors P4 Signal P8 Signal P8 Signal Pin # Pin # Pin # +3.3V/+5V/NC * +3.3V/+5V/NC * +3.3V/+5V/NC * XINT2/ADCSOC SCITXDA...

  • Page 24: P5,P9, Analog Interface

    Spectrum Digital, Inc The pin definition of P7 connector is shown in the table below. Table 7: P7, I/O Connector P7 Signal Pin # C1TRIPn C2TRIPn C3TRIPn T2CTRIPn/EVASOCn C4TRIPn C5TRIPn C6TRIPn T4CTRIPn/EVBSOCn No connect 2.3.5 P5/P9, Analog Interface The position of the 30 pins on the P5/P9 connectors are shown in the diagram below as viewed from the top of the eZdsp.
  • Page 25 Spectrum Digital, Inc The definition of P5/P9 signals are shown in the table below. Table 8: P5/P9, Analog Interface Connector Signal Signal Signal Pin # Pin # Pin # ADCINB0 ADCINA0 ADCINB1 ADCINA1 ADCINB2 ADCINA2 ADCINB3 ADCINA3 ADCINB4 ADCINA4 ADCINB5...

  • Page 26: P6, Power Connector

    Spectrum Digital, Inc 2.3.6 P6, Power Connector Power (5 volts) is brought onto the eZdsp R2812 via the P6 connector. The connector has an outside diameter of 5.5 mm. and an inside diameter of 2.5 mm. The position of the P6 connector is shown below.

  • Page 27: Connector Part Numbers

    Spectrum Digital, Inc 2.3.7 Connector Part Numbers The table below shows the part numbers for connectors which can be used on the eZdsp R2812. Part numbers from other manufacturers may also be used. Table 9: eZdsp R2812 Suggested Connector Part Numbers...

  • Page 28: Jp4, Jp5 Voltage Jumpers

    Spectrum Digital, Inc 2.4.1 JP4, JP5 Voltage Jumpers Jumpers JP4 and JP5 are unpopulated jumpers on the bottom side of the board that provide either +3.3 volts or +5 volts to pins on the expansion connectors. These jumpers are shipped uninstalled to prevent accidental damage by connecting wires or circuitry to the expansion connector.

  • Page 29: 2.4.1.1 Jp4, +3.3/5 Volts For P8, P4 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2.4.1.2 Jp5, +3.3/5 Volts For P2

    Spectrum Digital, Inc 2.4.1.1 JP4, +3.3/5 Volts for P8, P4 Jumper JP4 allows the user to provide either +3.3 or +5 volts to pins 1 and 2 of expansion connector P8, and pin 1 of P4. The settings for this jumper are shown in the table below Table 11: JP4, +3.3/5 Volts for P8, P4...

  • Page 30: Figure 2-12, Jp5 Layout

    Spectrum Digital, Inc 2.4.1.2 JP5, +3.3/5 Volts for P2 Jumper JP5 allows the user to provide either +3.3 or +5 volts to pins 1 and 2 of expansion connector P2. The settings for this jumper are shown in the table below.

  • Page 31: Switch Sw501

    Spectrum Digital, Inc 2.5 Switch SW501 The eZdsp R2812 has a 4 position switch that allows the user to configure the board for their application. The function of each position is shown in the table below. Table 13: SW501 Switch Positions...

  • Page 32: Switch Sw501, Position 2, Xmp/Mcn Mode Select

    Spectrum Digital, Inc 2.5.2 Switch SW501, Position 2, XMP/MCn Mode Select Position 2 on switch SW501 is used to select the XMP/MCn option. The open selection allows the DSP to operate in the Microprocessor mode. The closed selection allow the DSP to operate in the Microcontroller mode. The positions are shown in the table below.

  • Page 33: Leds

    Spectrum Digital, Inc 2.6 LEDs The eZdsp R2812 has two light-emitting diodes. DS1 indicates the presence of +5 volts and is normally ‘on’ when power is applied to the board. DS2 is under software control and is tied to the XF pin on the DSP through a buffer. These are shown in the table below.
  • Page 34 Spectrum Digital, Inc 2-22 eZdsp R2812 Technical Reference...

  • Page 35: A Ezdsp Tm R2812 Schematics

    Appendix A eZdsp R2812 Schematics The schematics for the eZdsp R2812 can be found on the CD-ROM that accompanies this board. The schematics were drawn on ORCAD. WARNING ! The TMS320R2812 supports +3.3V Input/Output levels which are NOT +5V tolerant. Connecting the eZdsp to a system with +5V Input/Output levels will damage the TMS320R2812.
  • Page 36 Spectrum Digital, Inc eZdsp R2812 Technical Reference...
  • Page 37 Spectrum Digital, Inc...
  • Page 38 Spectrum Digital, Inc eZdsp R2812 Technical Reference...
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  • Page 40 Spectrum Digital, Inc eZdsp R2812 Technical Reference...
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  • Page 42 Spectrum Digital, Inc eZdsp R2812 Technical Reference...
  • Page 43 Appendix B eZdsp R2812 MechanicaI Information This appendix contains the mechanical information about the socketed and unsocketed versions of the eZdsp R2812...
  • Page 44 Spectrum Digital, Inc eZdsp R2812 Technical Reference...
  • Page 46 Printed in U.S.A., September 2004 507715-0001 Rev. B...

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