P&E Microcomputer Systems USB-ML-PPCNEXUS Summary Manual

Usb multilink interface

Hide thumbs

Table of Contents

Quick Links

Download this manual

P&E Microcomputer Systems, Inc.

P.O. Box 2044, Woburn, MA 01888, USA

http://www.pemicro.com

TEL: (617) 353-9206

FAX: (617) 353-9205

USB-ML-PPCNEXUS, PowerPC Nexus Multilink Rev. A (USB 2.0)

Technical Summary

Document # PE3356, Version 1.1

1. Introduction

2. Usage Of The PowerPC Nexus Multilink Interface

3. Driver Installation On Windows XP/2000/2003/Vista

4. Computers Running Windows 95, 98, ME, or NT

5. Using A USB Hub

6. Connecting To The Target

7. Startup Reset Sequence

8. Interface Libraries

9. Firmware Updates

1.0 Introduction

P&E' s USB POWERPC NEXUS MULTILINK Interface provides access to the JTAG/Nexus port on

Freescale PowerPC MPC55xx processors. It is the hardware interface between a USB port on a Windows

2000, 2003, XP, or Vista machine and the standard 14-pin "Berg" debug connector on the target. By

using the USB PowerPC Nexus Multilink, the user can take advantage of the JTAG/Nexus debug mode to

halt normal processor execution and use a PC to control the processor. The user can then directly control

the target' s execution, read/write registers and memory values, debug code on the processor, and

program internal or external FLASH memory devices by using the appropriate software packages. The

pin-out of the connector as specified by Freescale is:

Table of Contents

Need help?

Do you have a question about the USB-ML-PPCNEXUS and is the answer not in the manual?

Questions and answers

Summary of Contents for P&E Microcomputer Systems USB-ML-PPCNEXUS

Page 1 P&E Microcomputer Systems, Inc. P.O. Box 2044, Woburn, MA 01888, USA http://www.pemicro.com TEL: (617) 353-9206 FAX: (617) 353-9205 USB-ML-PPCNEXUS, PowerPC Nexus Multilink Rev. A (USB 2.0) Technical Summary Document # PE3356, Version 1.1 1. Introduction 2. Usage Of The PowerPC Nexus Multilink Interface 3.
Page 2 2.0 Usage Of The USB PowerPC Nexus Multilink Interface The USB POWERPC NEXUS MULTILINK can communicate with a PowerPC 55xx processor. The Multilink interface will work with targets whose processor power supply is in the range of 1.8V to 5.25V. The Multilink interface derives its power from the USB port, and as such draws less than 10mA from the target.
Page 3 3.0 Driver Installation On Windows XP/2000/2003/Vista Before connecting the USB PowerPC Nexus Multilink to the PC, the appropriate drivers need to be installed on the PC. The drivers are automatically installed when installing any of P&E’ s PowerPC 55xx development packages built after September 1, 2005. A copy of the driver installation program may also be downloaded from the “downloads”...
Page 4 Port CABLEPPCNEXUS which connects the parallel port of the PC to the 14-pin debug connector on the target. For more information, visit http://www.pemicro.com. 5.0 Using A USB Hub The USB PowerPC Nexus Multilink is classified as a high-power USB device which is powered from the USB bus.
Page 5 P&E produces a set of interface libraries which allow the user to directly control the USB PowerPC Nexus Multilink from any Windows Development environment which can interact with a DLL. The interface libraries come with examples for controlling the Multilink interface from Microsoft Visual C as well as Borland Delphi.