Hunt Engineering HEP40E User Manual

Tim motherboard for at bus

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HUNT ENGINEERING

Chestnut Court, Burton Row,

We are a

committed

Brent Knoll, Somerset, TA9 4BP, UK

member of the

Tel: (+44) (0)1278 760188,

Texas Instruments

Fax: (+44) (0)1278 760199,

party

programme

Email: sales@hunteng.demon.co.uk

URL: http://www.hunteng.co.uk

For Sales and Support in North America Please Contact Our Strategic Partner:

Traquair Data Systems Inc, 114 Sheldon Road, Ithaca, NY 14850 USA

Tel 607 266 6000, Fax 607 266 8221

Email Traquair@traquair.com, URL

http://www.traquair.com

For Sales and Support in Other Areas Please Contact Your Local Reseller.

HUNT ENGINEERING

HEP40E

TIM Motherboard for AT BUS

USER MANUAL

Hardware Rev A

Document Rev C

T. Hollis 29/6/99

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Summary of Contents for Hunt Engineering HEP40E

Page 1: User Manual
HUNT ENGINEERING Chestnut Court, Burton Row, We are a committed Brent Knoll, Somerset, TA9 4BP, UK member of the Tel: (+44) (0)1278 760188, Texas Instruments Fax: (+44) (0)1278 760199, party programme Email: sales@hunteng.demon.co.uk URL: http://www.hunteng.co.uk For Sales and Support in North America Please Contact Our Strategic Partner:...
Page 2 WARRANTIES LIABILITY and INDEMNITIES HUNT ENGINEERING warrants the hardware to be free from defects in the material and workmanship for 12 months from the date of purchase. Product returned under the terms of the warranty must be returned carriage paid to the main offices of HUNT ENGINEERING situated at BRENT KNOLL Somerset UK, the product will be repaired or replaced at the discretion of HUNT ENGINEERING.
Page 3: Table Of Contents
TABLE OF CONTENTS INTRODUCTION......................4 GETTING STARTED....................5 PHYSICAL LOCATIONS OF ITEMS ON THE HEP40E........6 GENERAL DESCRIPTION OF INTERFACES ............7 ..............................8 ESET JTAG (IEEE 1149.1) TEST INTERFACE..............10 System examples.......................... 10 CONFIG ........................11 IIOFS ..........................12 COMPORT CONNECTOR ..................13 COMPORT CONNECTIONS ON THE HEP40E............15 PINOUT OF JTAG CONNECTORS ................16...
Page 4: Introduction
Also a system can be built upon as the need arises or the budget allows. The HEP40E is a PC-AT plug in card which is a motherboard for up to 4 Texas Instruments Modules (TIMs) without providing an interface between the PC bus and the TIM-40s.
Page 5: Getting Started
HEP40E. Gently slide the HEP40E into the relevant slot ensuring that the 'tail' of the card is in the card guide provided for it. DO NOT use excessive force on either the HEP40E or the PC.
Page 6: Physical Locations Of Items On The Hep40E
Physical Locations of Items on the HEP40E User jumpers (Control In/Out, JTAG In/Out JTAG control Reset & Config Auto reset TIM-40 slot 1 TIM-40 slot 2 TIM-40 slot 3 Comport Connectors TIM-40 slot 4 HUNT ENGINEERING HEP40E USER MANUAL...
Page 7: General Description Of Interfaces
HEP40E can also be a slave of an XDS510 type debug system. The topology chosen for the HEP40E is described in detail later but to enable the user to configure their own system topology there are also a number Comport Connectors. These allow for connections to other 'C4xs either on this board or on other boards.
Page 8: Reset
The HEP40E has a socketed crystal oscillator to drive the TIM-40 clock input. This is buffered by the board, and can be fitted with whichever frequency you require your modules to run at. Please note the use of this clock by the modules is optional, as they might have their own Xtal oscillators.
Page 9 This is also a TTL level signal, suitable for connecting directly to the reset input on any HUNT ENGINEERING motherboard. The TIM-40 reset is buffered and used to drive an LED labelled "RES" on the back of the board near the control connector.
Page 10: Jtag (Ieee 1149.1) Test Interface
JTAG output connector which is used when not the last board in the JTAG chain. Three jumpers are used to join up the scan path when this HEP40E is the last board on the JTAG chain (they should only be fitted when this is the case).
Page 11: Config
Config line. The Config is buffered and used to control an LED labelled "CONF" on the back of the board near the control connector. This LED will illuminate when the TIM's Config signal is asserted low. HUNT ENGINEERING HEP40E USER MANUAL...
Page 12: Iiofs
The 'C4x can choose whether to poll these inputs or to set up interrupts. The inputs are pulled high on the HEP40E with 10K, and are buffered with a TTL gate that requires Iil = -1.6mA max ( Vin 0.5V) Iih = 1.0mA max (Vin 5.0V )
Page 13: Comport Connector
Care must be taken to only connect a reset_to_input comport to a reset_to_output comport. The cables available from HUNT ENGINEERING are polarised in such a way as to prevent incorrect connection. Care should be taken to ensure that any cables provided by the user are similarly polarised.
Page 14 HEP40E. If you are attempting to design your own hardware to interface with the HEP40E please ask for the application note that covers this subject.
Page 15: Comport Connections On The Hep40E
Also as the power consumption rises for each cable end fitted. These comport connections CANNOT be interconnected with earlier generations of HUNT ENGINEERING comport buffering schemes which can be identified by their different polarising schemes. HUNT ENGINEERING HEP40E USER MANUAL...
Page 16: Pinout Of Jtag Connectors
The PD jumper connects the PD signal to +5V when fitted (last board only) The TDO jumper joins "TDO from slot 4" to "TDO_RET" when fitted (last board only) The TCK jumper joins "TCK buffered" to "TCK_RET" when fitted (last board only). HUNT ENGINEERING HEP40E USER MANUAL...
Page 17: Pinout Of Control Connectors
Ground Ground Reset out Polarising Polarising Polarising Config Config So Standard HUNT ENGINEERING control cables can be used to connect multiple boards together as follows :- Master Board Slave board Reset Out--------------------------------------------------- Reset In GND-------------------------------------------------------- GND Config ----------------------------------------------------- Config and further slave boards can be added in the same way, as long as their reset and Config jumpers are Configured correctly.
Page 18: Pinout Of I/O Connectors
Buffered IIOF0 slot 1 Buffered IIOF0 slot 2 Buffered to IIOF2 slot 1 Buffered IIOF0 slot 3 Buffered to IIOF2 slot 2 Buffered IIOF0 slot 4 Buffered to IIOF2 slot 3 Buffered to IIOF2 slot 4 HUNT ENGINEERING HEP40E USER MANUAL...
Page 19: Physical Dimensions Of The Board
The maximum height of the components on the back of the HEP40E is 3mm. If a "Processing module" such as the HET40SX, or HETWIN is fitted to the HEP40E, the total width of the assembly is 20mm, but if an I/O module is used, the connectors may make the total thickness more.
Page 20: Power Requirements Of The Hep40E
Power Requirements of the HEP40E The HEP40E only uses power from the 5V TIM-40 supply, but it must be remembered that +-12v is supplied to the modules on the board, so when fitted with modules it might require these supplies also.
Page 21: Fitting Tims To Your Hep40E
TIM as this could stress the TIM's PCB unnecessarily. If the environment demands positive retention of the modules, use the retaining strip and nylon screws supplied with the HEP40E. Spacers will have been already been fitted, adjacent to the TIM connectors, on the HEP40E.
Page 22 The retaining strip can be fitted over empty TIM slots, and held in position by screwing the fixing screws into the spacers on the board. Of course normal Static precaution procedures should be followed at all times. HUNT ENGINEERING HEP40E USER MANUAL...
Page 23: Ce Marking
The main assumptions made by HUNT ENGINEERING when CE marking the HEP40E are as follows:- 1. The PC in which the HEP40E is installed is properly assembled with EMC and LVD in mind and ideally should itself carry the CE mark.
Page 24: Technical Support
Technical Support Technical support for HUNT ENGINEERING products should first be obtained contacting your local supplier, if you are unsure of details please refer to for the list of current re-sellers. www.hunteng.co.uk HUNT ENGINEERING technical support contacted emailing support@hunteng.demon.co.uk, calling the direct support telephone number +44 (0)1278...