Summary of Contents for Tech tools EconoROM III
- Page 1 EconoROM III User’s Manual Version 1.0 Covers Models ER3-256, ER3-512, ER3-1M, ER3-4M and ER3-8M Copyright © 2000 by TechTools, all rights reserved...
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Page 3: Table Of Contents
Verifies, but target does not run........................ 15 Works but VERY slowly under NT/2000 ....................17 FAQs ..........................18 Can I use EconoROM III on a 3V target?....................18 What is the lowest target voltage supported? .................... 18 How accurate are EconoROM III’s voltage readings?................18 Can EconoROM III emulate FLASH devices? .................. - Page 4 (This Page intentionally blank)
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Page 5: Introduction
As engineers, we understand that you do not have time to troubleshoot your test equipment. You need to be able to trust your test equipment. With that in mind, we thoroughly test each and every EconoROM III to ensure that you receive a fully functional unit. In addition, we provide a self-test function to enable you to verify proper emulator operation at any time. -
Page 6: Install The Software
Install the Software The EconoROM III software may come on floppy, CDROM or BOTH. If a floppy was included with your emulator, it may be a complete install or a patch. Follow the instructions on the floppy. If the floppy contains a PATCH, you will be instructed to install the software from the CDROM and THEN apply the patch. -
Page 7: Plug The Emulator Into Your Target
RED stripe with the PIN 1 end of the DIP socket. PLUGGING THE CABLE IN BACKWARDS WILL DAMAGE EconoROM III! The old carpenters’ rule applies here: ‘MEASURE twice – CUT once.’ EconoROM III User’s Manual Copyright © 2000, TechTools... -
Page 8: Connect Reset
Connect the appropriate output to your target’s RESET circuitry. EconoROM III’s reset signal should be connected to the target’s reset circuitry at the most “upstream” point available. This is usually an RC combination that senses the target’s power up or a manual reset switch. -
Page 9: Apply Power
RESET to keep the target from running until it has received a download. The flashing GREEN LED indicates target activity. Verify the RESET line is connected Verify your selection of the RESET attachment point Verify your selection of RESET polarity. EconoROM III User’s Manual Copyright © 2000, TechTools... - Page 10 RESET to keep the target from running until it has received a download. The flashing GREEN LED indicates target activity. Verify the RESET line is connected Verify your selection of the RESET attachment point Verify your selection of RESET polarity. EconoROM III User’s Manual Copyright © 2000, TechTools...
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Page 11: Connect The Download Cable
Select an unused PRINTER port on your PC. Remove any “dongles”, security keys, printer switch boxes or extension cables from the port. Plug the supplied download cable directly into the selected printer port. Plug the other end of the cable into EconoROM III’s “IN” port. PLUGGING EconoROM III INTO A SERIAL PORT... -
Page 12: Load Your Program
If that does not resolve the problem, PLEASE CONTACT OUR TECHNICAL SUPPORT at support@tech-tools.com or (972) 272-9392. We are confident that we can solve the problem in a timely manner! EconoROM III User’s Manual Copyright © 2000, TechTools... -
Page 13: Software
Software EconoROM III ships with several programs. The command line driven programs document their valid parameters if you invoke them with a ‘?’ for a parameter. For example, to see the valid options for the loader program, type “ER3LD32 ?”. All programs except the Quickloader are batchable command-line style programs. -
Page 14: Er3Test, Er3Test32
(RED = no target power, GREEN = target power good, FLASHING GREEN = target accessing the emulator). The EconoROM III loader is very flexible, allowing any combination of emulators to be loaded in almost any manner desired. The loader can load to individual units or automatically perform file splitting between 2 or more units. -
Page 15: Enhancements
Memory Retention EconoROM III uses SRAMs to store the code image. If you wish to cycle the target power to see the target execute from power up, you will need to connect an external power supply to the emulator to maintain the SRAM contents during the power outage. -
Page 16: Troubleshooting
Regardless of the symptom, verify the following: There are no “dongles”, security keys, switch boxes or other devices between the EconoROM III download cable and the printer port. Try each available printer port configuration. Some ports work best in STANDARD, AT, NIBBLE or COMPATIBLE mode. -
Page 17: Printer Port Not Found Message
3BC. If you are using the command-line loaders, use the /Pxxx parameter to specify the port. Using wrong download cable or backshell The EconoROM III download cable is compatible with the older FLexROM II product but is NOT compatible with EconoROM II or earlier FlexROMs. Use the cable provided with EconoROM III. -
Page 18: Fails Verify
Target power is noisy or Voltage too low. EconoROM III draws more current than the EPROM it is replacing. If the target is a very low power system, or is already pushing its power supply limits, it may not have enough extra current to power the emulator, causing power fluctuations or noise. -
Page 19: Verifies, But Target Does Not Run
(>=1Mbit) use a 32 pin DIP to 32 pin PLCC adapter. Smaller devices usually need a 28 pin DIP to 32 pin PLCC adapter but MIGHT need the 32 pin version. Give us a call if you are not sure. EconoROM III User’s Manual Copyright © 2000, TechTools... - Page 20 It is possible that we could load and verify with a target voltage that is well under spec, but the target will not execute properly. EconoROM III draws more current than the EPROM it is replacing. The target may be able to supply enough current during downloads, but may not be able to hold the voltage up when it starts running, causing power fluctuations or noise.
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Page 21: Works But Very Slowly Under Nt/2000
EPROMs run faster than they are marked; particularly at full voltage and room temperature. We have seen many systems that appear to run fine, even though their access times routinely violate the EPROM’s rating. Fortunately, EconoROM III’s speed rating (45ns) is faster than most ERPOMs used in embedded systems. -
Page 22: Faqs
External power supplies are available form TechTools. What is the lowest target voltage supported? EconoROM III was designed to support 3.0V to 5.0V targets. However, it CAN support lower voltage targets within limits. Three things set the lower limit; Logic INPUT thresholds, Vout HIGH from the emulator, and the target isolation threshold. -
Page 23: Do I _Really_ Need To Connect The Reset Line
It makes the entire download/verify/run operation fully automatic and consistent. Can EconoROM III emulate DIP/PLCC/TSOP… packages? Yes. TechTools stocks low cost PLCC adapters and all emulators ship with DIP cables. We find that DIP and PLCC packages cover about 95% of our customers’... - Page 24 TechTools PO Box 462101 Garland, TX 75046 (972) 272-9392 FAX: (972) 494-5814 Sales@tech-tools.com Support@tech-tools.com www.tech-tools.com EconoROM III User’s Manual Copyright © 2000, TechTools...
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