OLIMEX ARM-JTAG-EW User Manual
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OLIMEX ARM-JTAG-EW User Manual

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ARM-JTAG-EW
User Manual
All boards produced by Olimex are ROHS compliant
Rev.B, March 2009
Copyright(c) 2009, OLIMEX Ltd, All rights reserved

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Summary of Contents for OLIMEX ARM-JTAG-EW

  • Page 1 ARM-JTAG-EW User Manual All boards produced by Olimex are ROHS compliant Rev.B, March 2009 Copyright(c) 2009, OLIMEX Ltd, All rights reserved...
  • Page 2 MCU voltage, target supply voltage and target consumption current 1 ARM-JTAG-EW outputs have 3.3V levels and will work with 5V targets that have TTL-level inputs. 2 DLL compatible means that we supply our own jlinkarm.dll. The original IAR-EW DLL will not work with the ARM-JTAG-EW device because ARM-JTAG-EW and IAR J-Link use different USB protocols.
  • Page 3 The JTAG connector pin description is given below. Signal Direc Description № tion Target reference voltage. Target board must connect 3 Pin direction is from the side of ARM-JTAG-EW. I stands for Input (Target to ARM-JTAG-EW), and O for output (ARM-JTAG-EW to Target).
  • Page 4 2.3. Providing Target Power Via JTAG Connector By default ARM-JTAG-EW connects the USB supply voltage to pin 19 of the JTAG connector via MOSFET switch. Depending on the current consumption and the used USB host and hubs the supplied voltage can...

  • Page 5: Software Installation

    { __jlinkExecCommand("SupplyPower = 0"); 2.4. LED Indication ARM-JTAG-EW has a single dual color LED. Its states are shown below. Slow blinking is with a period of 1s, and fast blinking is with a period of 128ms. LED State Description ARM-JTAG-EW is not connected to USB, or it is in USB suspended state.
  • Page 6 Extract it to a temporary directory on your hard drive using the password found in the box along with the ARM-JTAG-EW device. 4. Plug ARM-JTAG-EW in your PC and wait Windows to ask you for drivers.
  • Page 7 Extract it to a temporary directory on your hard drive using the password found in the box along with the ARM-JTAG- EW device. The software package contains the file jlinkarm.dll. Find it and copy it to the IAR-ARM “arm\bin” directory, like this: C:\>...
  • Page 8 5. External event breakpoints 5.1. Overview ARM-JTAG-EW has the ability to halt the target CPU upon detecting an external event like a current/voltage spike/drop, external input trigger, external input pulse detection. External Breakpoints Block Diagram is given on page 9.
  • Page 9 ARM-JTAG-EW via firmware TG,threshold1 request to TG,threshold2 halt target boolean function TGPWR defined by a TGPWR,threshold1 Look-Up Table TGPWR,threshold2 Illustration 1: External Breakpoints Block Diagram 5.2. Formal event syntax The grammar for defining events is very C-like. The following identifiers are...
  • Page 10 | (PRIMARY_ANALOG '<=' PRIMARY_ANALOG) | (PRIMARY_ANALOG '>' PRIMARY_ANALOG) | (PRIMARY_ANALOG '>=' PRIMARY_ANALOG) UNARY_EXPR ::= RELATIONAL_ANALOG | PRIMARY_BOOLEAN | ('!'+ PRIMARY_BOOLEAN) EQUALITY_EXPR ::= UNARY_EXPR (('==' UNARY_EXPR) | ('!=' UNARY_EXPR))* AND_EXPR ::= EQUALITY_EXPR ('&&' EQUALITY_EXPR)* XOR_EXPR ::= AND_EXPR ('^^' AND_EXPR)* OR_EXPR ::= XOR_EXPR ('||' XOR_EXPR)* EXPR ::= OR_EXPR 5.3.

  • Page 11: Firmware Upgrade

    7.3. ARM-JTAG-EW cannot pull high/down the JTAG or reset lines ARM-JTAG-EW has 100 Ω resistors in series with all its JTAG digital inputs and outputs. If the target board has circuits for driving those signals this will result in contention. Please remove all digital outputs, LEDs, RS232 drivers, SPI, I2C from the JTAG and reset lines.

  • Page 12: Copyright Acknowledgments

    Maximum current that TGPWR,MAX can be drawn from target via JTAG connector pin Frequency on TCK JTAG/ 12000 kHz SW pin. SWO capture speed. 3000 kHz 4 ARM-JTAG-EW outputs have 3.3V levels and will work with 5V targets that have TTL-level inputs.

  • Page 13: Order Code

    10. Order Code ARM-JTAG-EW – assembled and tested (no kit, no soldering required) How to order? You can order to us directly or by any of our distributors. Check our web www.olimex.com/dev for more info. Revision history: REV.A - February 2009 Initial release.
  • Page 14 This document is intended only to assist the reader in the use of the product. OLIMEX Ltd. shall not be liable for any loss or damage arising from the use of any information in this document or any error or omission in such...
  • Page 15 Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Olimex Ltd. ARM-JTAG-EW...

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