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Spectrum Digital eZdsp F2808 Technical Reference

Stand-alone card--allowing evaluators to examine the digital signal processor (dsp) to determine if it meets their application requirements
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TM
eZdsp
F2808 USB
Technical
Reference
2004
DSP Development Systems

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Summary of Contents for Spectrum Digital eZdsp F2808

  • Page 1 eZdsp F2808 USB Technical Reference 2004 DSP Development Systems...
  • Page 3 F2808 USB Technical Reference 507835-0001 Rev. B November 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 F2808 ..........1-1 Provides a description of the eZdsp F2808, key features, and board outline.
  • Page 6 List of Figures Figure 1-1, Block Diagram eZdsp F2808 ........1-3 Figure 2-1, eZdsp F2808 PCB Outline .
  • Page 7 About This Manual This document describes board level operations of the eZdsp F2808 based on the Texas Instruments TMS320F2808 Digital Signal Processor. The eZdsp F2808 is a stand-alone module permitting engineers and software developers evaluation of certain characteristics of the TMS320F2808 DSP to determine processor applicability to design requirements.
  • Page 8 Table 1: Manual History Revision History Preliminary Release Production Release Table 2: Board History Revision History Prototype Release Production Release...

  • Page 9: Introduction To The Ezdsp Tm F2808

    Chapter 1 Introduction to the eZdsp F2808 This chapter provides a description of the eZdsp for the TMS320F2808 Digital Signal Processor, key features, and block diagram of the circuit board. Topic Page Overview of the eZdsp F2808 Key Features of the eZdsp F2808 Functional Overview of the eZdsp F2808...
  • Page 10 Spectrum Digital, Inc 1.0 Overview of the eZdsp F2808 The eZdsp F2808 is a stand-alone card--allowing evaluators to examine the TMS320F2808 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 TMS320F2808 processor.

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

    Spectrum Digital, Inc 1.2 Functional Overview of the eZdsp F2808 Figure 1-1 shows a block diagram of the basic configuration for the eZdsp F2808. The major interfaces of the eZdsp are the JTAG interface, and expansion interface. 20 Mhz. XTAL1/OSCIN...
  • Page 12 Spectrum Digital, Inc eZdsp F2808 Technical Reference...

  • Page 13: Operation Of The Ezdsp Tm F2808

    Chapter 2 Operation of the eZdsp F2808 This chapter describes the operation of the eZdsp F2808, key interfaces and includes a circuit board outline. Topic Page The eZdsp F2808 Operation The eZdsp F2808 Board 2.1.1 Power Connector eZdsp F2808 Memory 2.2.1 Memory Map eZdsp...

  • Page 14: Figure 2-1, Ezdsp Tm F2808 Pcb Outline

    Spectrum Digital, Inc 2.0 The eZdsp F2808 Operation This chapter describes the eZdsp F2808, key components, and operation. Information on the eZdsp’s various interfaces is also included. The eZdsp F2808 consists of four major blocks of logic: • Analog Interface Connector •...
  • Page 15 The eZdsp can load ram for debug, or Flash can be programmed and run. For larger software projects it is suggested to do a initial debug with on eZdsp F2808 module which supports a total RAM environment. With careful attention to the I/O mapping in...

  • Page 16: Memory Map

    Spectrum Digital, Inc 2.2.1 Memory Map The figure below shows the memory map configuration on the eZdsp F2808. F2808 Block Start Address Data Space Program Space 0x0000-0000 M0 SARAM 0x0000-0400 M1 SARAM 0x0000-0800 Peripheral Frame 0 Do Not Use !

  • Page 17: Ezdsp Tm F2808 Connectors

    Spectrum Digital, Inc 2.3 eZdsp F2808 Connectors The eZdsp F2808 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 1: eZdsp F2808 Connectors...

  • Page 18: Figure 2-3, Ezdsp Tm F2808 Connector And Switch Positions

    Spectrum Digital, Inc The diagram below shows the position of each connector J201 P5/P9 Figure 2-3, eZdsp F2808 Connector and Switch Positions eZdsp F2808 Technical Reference...

  • Page 19: P1, Jtag Interface

    Spectrum Digital, Inc 2.3.1 P1, JTAG Interface The eZdsp F2808 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: P3, Usb Port/Jtag Interface

    Spectrum Digital, Inc 2.3.2 P3, USB Port/JTAG Interface The eZdsp F2808 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 2.3.3 P8, I/O Interface...
  • Page 21 Spectrum Digital, Inc The pin definition of P4/P8 connectors are shown in the table below. Table 3: P4/P8, I/O Connectors P8 Signal P8 Signal Pin # Pin # +3.3V/+5V/NC * +3.3V/+5V/NC * MUX_GPIO29 MUX_GPIO28 GPIO14 GPIO20 GPIO21 GPIO23 GPIO0 GPIO1...

  • Page 22: P5,P9, Analog Interface

    Spectrum Digital, Inc 2.3.4 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. ANALOG Figure 2-6, Connector P5/P9 Pin Locations The definition of P5/P9 signals are shown in the table below.

  • Page 23: P6, Power Connector

    Spectrum Digital, Inc 2.3.5 P6, Power Connector Power (5 volts) is brought onto the eZdsp F2808 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 24: P10, Rs-232 Connector

    Spectrum Digital, Inc 2.3.6 P10, RS-232 Connector The eZdsp F2808 has an RS-232 connector which brings out the SCIA transmit and receive signals to be used as UART. This UART uses the MAX3238 RS-232 line driver and is routed to a male 9 pin D-connector, P10. The pin positions for the P10 connector as viewed from the edge of the printed circuit board are shown below.

  • Page 25: P11, Can Connector

    Spectrum Digital, Inc 2.3.7 P11, CAN Connector The eZdsp F2808 has a 9 Pin female D-connector which brings out the CANA transmit and receive signals. This CAN interface uses the SN65HVD235 CAN driver. The pin positions for the P11 connector as viewed from the edge of the printed circuit board are shown below.
  • Page 26 Spectrum Digital, Inc 2.3.8 J10, SCIB 5 x 2 Header The SCIB signals are routed through the MAX3238 line driver to a 5 x 2 double row header, J10. The pin numbers for J10 and their corresponding signals are shown in the table below.

  • Page 27: Connector Part Numbers

    Spectrum Digital, Inc 2.3.10 Connector Part Numbers The table below shows the part numbers for connectors which can be used on the eZdsp F2808. Part numbers from other manufacturers may also be used. Table 9: eZdsp F2808 Suggested Connector Part Numbers...

  • Page 28: Jp4, Voltage Jumper, +3.3/5 Volts For

    Spectrum Digital, Inc 2.4.1 JP4, Voltage Jumper, +3.3/5 Volts for P8, P4 Jumpers JP4 is an unpopulated jumper on the bottom side of the board that provide either +3.3 volts or +5 volts to pins on the expansion connector. This jumper is shipped uninstalled to prevent accidental damage by connecting wires or circuitry to the expansion connector.

  • Page 29: Jp5, Adcrefin Select

    Spectrum Digital, Inc 2.4.2 JP5, ADCREFIN Select Jumper J5 is used to select ADCREFIN as the voltage reference for the analog to digital converter. When the jumper is shorted the +2.048 voltage level is routed to the ADCREFIN signal of the DSP. When the jumper is open the ADCREFIN floats.

  • Page 30: Switch Sw1

    The switches and their functionality are described in the following sections. 2.5.1 Switch SW1 The eZdsp F2808 has a 6 position switch, SW1, that allows the user to configure the board for their application. The function of each position on SW1 is shown in the table below.

  • Page 31: Switch Sw1, Position 1-3, Boot Mode Select

    Spectrum Digital, Inc 2.5.1.1 Switch SW1, Positions 1-3, Boot Mode Select Positions 1-3 on switch SW1 are used to determine what mode the DSP will use for bootloading on power up. The options are shown in the table below. Table 14: SW1, Positions 1-3...

  • Page 32: Switch Sw1, Position 6, Serial Eeprom Address A1

    Spectrum Digital, Inc 2.5.1.3 Switch SW1, Position 5, Serial EEPROM Pull-ups Position 5 on switch SW1 are used to select if the EEPROM is using pull up resistors. When position 5 is in the “Closed” state pull up resistors are used. When position 5 is in the “Open”...

  • Page 33: Switch Sw2

    Spectrum Digital, Inc 2.5.2 Switch SW2 Switch SW2 on the eZdsp F2808 has 4 positions that allow the user to configure the SCI/CAN MUX. The function of each position is shown in the table below. Table 18: SW2 Switch Positions...

  • Page 34: Leds

    Spectrum Digital, Inc 2.6 LEDs The eZdsp F2808 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 GPIO34 pin on the DSP through a buffer. These are shown in the table below.

  • Page 35: A Ezdsp Tm F2808 Schematics

    Appendix A eZdsp F2808 Schematics The schematics for the eZdsp F2808 can be found on the CD-ROM that accompanies this board. The schematics were drawn on ORCAD. WARNING ! The TMS320F2808 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 TMS320F2808.
  • Page 36 Spectrum Digital, Inc eZdsp F2808 Technical Reference...
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  • Page 42 Spectrum Digital, Inc eZdsp F2808 Technical Reference...
  • Page 43 Appendix B eZdsp F2808 MechanicaI Information This appendix contains the mechanical information about the socketed and unsocketed versions of the eZdsp F2808...
  • Page 44 Spectrum Digital, Inc eZdsp F2808 Technical Reference...
  • Page 45 Spectrum Digital, Inc...
  • Page 46 Spectrum Digital, Inc eZdsp F2808 Technical Reference...
  • Page 48 Printed in U.S.A., October 2004 507835-0001 Rev. A...

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