Atmel AT91EB42 User Manual
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Atmel AT91EB42 User Manual

Atmel AT91EB42 User Manual

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AT91EB42 Evaluation Board
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User Guide

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Summary of Contents for Atmel AT91EB42

  • Page 1 AT91EB42 Evaluation Board ....................User Guide...

  • Page 3: Table Of Contents

    Table of Contents Section 1 Overview ....................1-1 Scope ......................1-1 Deliverables ....................1-1 The AT91EB42 Evaluation Board .............1-1 Section 2 Setting Up the AT91EB42 Evaluation Board ..............2-1 Electrostatic Warning ................2-1 Requirements....................2-1 Layout .......................2-1 Jumper Settings ..................2-2 Powering Up the Board ................2-2 Measuring Current Consumption on the AT91M42800A ......2-2...
  • Page 4 Ground Links (JP6) ...................5-7 Increasing Memory Size ................5-7 Section 6 Appendix B – Schematics..............6-1 Schematics ....................6-1 Section 7 Appendix C – Bill of Materials............... 7-1 Section 8 Appendix D – Flash Memory Mapping .................. 8-1 AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 5: Overview

    Scope The AT91EB42 Evaluation Board enables real-time code development and evaluation. It supports the AT91M42800A. This user guide focuses on the AT91EB42 Evaluation Board as an evaluation and dem- onstration platform. ! Section 1 provides an overview. ! Section 2 describes how to set up the evaluation board.
  • Page 6 ! 2 x 32-pin I/O expansion connectors ! 20-pin JTAG interface connector If required, user-defined peripherals can also be added to the board. See Section 5 for details. Figure 1-1. AT91EB42 Evaluation Board Block Diagram AT91M42800A Reset Controller 8K Bytes...

  • Page 7: Setting Up The At91Eb42 Evaluation Board

    Avoid touching the compo- nent pins or any other metallic element. Requirements In order to set up the AT91EB42 Evaluation Board, the following requirements are needed: ! The AT91EB42 Evaluation Board itself...

  • Page 8: Jumper Settings

    The minimum voltage required is 7V. Board A battery is supplied on the AT91EB42. It supplies all on-board devices in the same way that the external DC power operates. A battery fast-charge controller is provided on- board with a fast-charge indicator (D28), as shown in Figure 2-1.

  • Page 9: Testing The At91Eb42 Evaluation Board

    Setting Up the AT91EB42 Evaluation Board Testing the To test the AT91EB42 Evaluation Board, perform the following procedure: AT91EB42 1. Hold down the SW1 button and power-up the board, or generate a reset and wait Evaluation Board for the light sequence on each LED to complete. All the LEDs light.
  • Page 10 Setting Up the AT91EB42 Evaluation Board AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 11: The On-Board Software

    Section 3 The On-board Software AT91EB42 The AT91EB42 Evaluation Board embeds an AT49BV162A Flash memory device pro- grammed with default software. Only the lowest 8 x 8 KB sectors are used. The Evaluation Board remaining sectors are user definable, and can be programmed using one of the Flash downloader “Flash_16x4”...

  • Page 12: Programmed Default Memory Mapping

    The procedure is as follows: 1. Connect the Serial A or B port of the AT91EB42 Evaluation Board to a host PC Serial port using the straight serial cable provided. 2. Start the AT91Loader.exe program available in the AT91 Library on the host com- puter.

  • Page 13: Power-Down Demonstration

    AT91M42800A and AT91M55800A”, literature number 1740A. A PLL Filter Calcula- tor Tool is also available. See “Automatic_calculation_xls.zip”. Power-down The AT91EB42 Evaluation Board is delivered with a battery unit to supply the board when the main power supply is removed. The aim of the power-down demonstration is Demonstration to save the battery unit.
  • Page 14 The On-board Software AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 15: Circuit Description

    -standard 20-pin box header (P5) is provided to enable connection of an ICE interface to the JTAG inputs on the AT91. This allows code to be developed on the board without using system resources such as memory and serial ports. AT91EB42 Evaluation Board User Guide Rev. 1708C–ATARM–12-May-05...

  • Page 16: Memories

    Analog-to-digital An on-board 4-channel, 10-bit ADC device (TLV1504 by Texas Instruments) is featured on the AT91EB42. This device is interfaced to the AT91M42800A via the SPIA periph- Converter eral and embeds its voltage reference equal to 2V. Four channels are used on the AT91EB42 for the following measurements: ! Channel 0 is used to measure the temperature near the 32.768 kHz crystal.

  • Page 17: Push-Buttons, Leds, Reset And Serial Interfaces

    The board is provided with four mounting holes, one at each corner, into which feet are attached. The board has two signal layers and two power planes. AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...
  • Page 18 Circuit Description AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 19: Appendix A - Configuration Straps

    Section 5 Appendix A – Configuration Straps Functional Pin The following table provides a list of each peripheral used on the AT91EB42 Evaluation Board. Assignment Table 5-1. Functional Pin Assignment Pin Designation Function Used on the AT91EB42 NCS0 Chip Select signal for the Flash Memory (AT49BV162A)

  • Page 20: Configuration Straps (Cb1 - 23, Jp1 - 8)

    Appendix A – Configuration Straps Table 5-1. Functional Pin Assignment (Continued) Pin Designation Function Used on the AT91EB42 PB17/TIOB3 General I/O input/output line to generate SDA signal dedicated for a two wire bus access PA13/MOSIA To generate SPI bus Access to the DataFlash, EEPROM and ADC...
  • Page 21 The ADC channel 0 is not connected and it is available on the I/O expansion connector for the user application. Note: 1. Hardwired default position: To cancel this default configuration, the user should cut the wire on the board. AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...
  • Page 22 Control Line for the Internal Oscillator Closed Disables the internal low frequency oscillator. Open Enables the internal oscillator. Note: 1. Hardwired default position: To cancel this default configuration, the user should cut the wire on the board. AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...
  • Page 23 CB21, CB22, CB23 Charger Device (U16): Programming the Battery Number of Cells Number of Cells CB21 CB22 CB23 Open Closed Closed Open Open Closed Closed Open Closed Open Closed Open Open Open Open Closed Open Open AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...
  • Page 24 PME Function (Protect Mode Enable) Closed The AT91M42800A is in Protect Mode. Open This is the default mode on the AT91EB42. The AT91M42800A internal registers are accessible in all processor modes. Core Power Supply Selection 2 - 3 The AT91 core is powered by 3.3V power supply.

  • Page 25: Power Consumption Measurement Strap (Jp5)

    The JP6 strap allows the user to connect the electrical and mechanical grounds. (JP6) Increasing The AT91EB42 Evaluation Board is supplied with two 128K x 8 SRAM memories. If, however, the user needs more than 256K bytes of memory, the devices can be replaced Memory Size with two 512K x 8 3.3V 10/15 ns SRAMs, giving a total of 1024K bytes.
  • Page 26 Appendix A – Configuration Straps AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 27: Schematics

    Schematics The following schematics are appended: ! Figure 6-1 – PCB Layout ! Figure 6-2 – AT91EB42 Blocks Overview ! Figure 6-3 – EBI Memories ! Figure 6-4 – I/O and EBI Expansion Connectors ! Figure 6-5 – Push-buttons, LEDs and Serial Interface ! Figure 6-6 –...

  • Page 28: Appendix B - Schematics

    Appendix B – Schematics Figure 6-1. PCB Layout AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 29: Figure 6-2. At91Eb42 Blocks Overview

    Appendix B – Schematics Figure 6-2. AT91EB42 Blocks Overview AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 30: Figure 6-3. Ebi Memories

    Appendix B – Schematics Figure 6-3. EBI Memories AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...
  • Page 31 EBI Extension Connector I/O Extension Connector PA[0..29] CTL[0..6] PB[0..23] PB6 / TCLK0 CTL0 CTL1 NWR0 / NWE NWR1 / NUB VCC3V3 VCC3V3 PB7 / TIOA0 CTL2 CTL3 NRD / NOE NWAIT PA0 / IRQ0 PB8 / TIOB0 PA25 PA25 / MCK0 PA1 / IRQ1 PB9 / TCLK1 CTL4...

  • Page 32: Figure 6-5. Push-Buttons, Leds And Serial Interface

    Appendix B – Schematics Figure 6-5. Push-buttons, LEDs and Serial Interface AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 33: Figure 6-6. At91M42800A

    VDDIO VDDIO PA29 PA29 PA29 / PME CTL3 NWAIT CTL2 NOE / NRD CTL0 NWE / NWR0 CTL1 NUB / NWR1 CTL4 NCS0 CTL6 NCS1 PB0 / NCS2 PB1 / NCS3 VDDCORE VDDIO VDDCORE AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 34: Figure 6-7. Reset And Jtag Interface

    Appendix B – Schematics Figure 6-7. Reset and JTAG Interface AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 35: Figure 6-8. Power Supply And Battery Charger

    Appendix B – Schematics Figure 6-8. Power Supply and Battery Charger BOOST AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 36: Figure 6-9. Spi Memories, Two-Wire Interface Memories And Spi Adc

    Appendix B – Schematics Figure 6-9. SPI Memories, Two-wire Interface Memories and SPI ADC 6-10 AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 37: Appendix C - Bill Of Materials

    Section 7 Appendix C – Bill of Materials Figure 7-1. Bill of Materials for AT91EB42 Item Qty. Reference Part Designation Manufacturer 6V battery NiCd pack battery 6V – 300 mAh Saft JP1, JP8 3-point jumper Jumper JP4, JP5 2-point Jumper...
  • Page 38 Appendix C – Bill of Materials Figure 7-1. Bill of Materials for AT91EB42 (Continued) Item Qty. Reference Part Designation Manufacturer D10, D28 Red LED Red CMS LED D30, D29 Orange LED SMT Orange LED D32, D31 Green LED SMT Green LED...
  • Page 39 Molex housing, series 6471 Notes: 1. The AT91EB42 board is equipped with SRAM U2/U3 or U4/U5. The difference is in the type of case used. The selection is made based on availability. 2. U18 is wired according to availability. 3. Cannot be seen in Figure 6-1.
  • Page 40 Appendix C – Bill of Materials AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 41: Appendix D - Flash Memory Mapping

    1M Byte 1 Sector Monitor Standard (64K Bytes/Sector) 0x01006000 Mode 0x01005FFF 1 Sector Free Sector for (8K Bytes/Sector) Boot Upgrade 0x01004000 0x01000000 Flash Uploader 2 Sectors Functional Test Software (8K Bytes/Sector) Boot Program AT91EB42 Evaluation Board User Guide Rev. 1708C–ATARM–12-May-05...
  • Page 42 Appendix D – Flash Memory Mapping AT91EB42 Evaluation Board User Guide 1708C–ATARM–12-May-05...

  • Page 43: Revision History

    Document Details Title AT91EB42 Evaluation Board User Guide Literature Number 1708 Revision History Version C Publication Date: 12-May-05 Revisions since last issue All pages Removed all references to SRAM Downloader Removed all references to two-wire interface Changed all occurrences of AT49B1604(A) or AT49BV1614(A) or AT49BV16x4 to AT49BV162A.
  • Page 44 Figure 8-1 Updated with new memory sizes 1708C–ATARM–12-May-05...
  • Page 45 Disclaimer: The information in this document is provided in connection with Atmel products. No license, express or implied, by estoppel or otherwise, to any intellectual property right is granted by this document or in connection with the sale of Atmel products. EXCEPT AS SET FORTH IN ATMEL’S TERMS AND CONDI- TIONS OF SALE LOCATED ON ATMEL’S WEB SITE, ATMEL ASSUMES NO LIABILITY WHATSOEVER AND DISCLAIMS ANY EXPRESS, IMPLIED OR STATUTORY...

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