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| 型號： | SWPTC-01 |
| 英文描述： | SWPTC-01 Programming Software for PTC-01 Programmer |
| 中文描述： | SWPTC - 01 PTC軟件編程，01編程 |
| 文件頁數(shù)： | 21/21頁 |
| 文件大小： | 914K |
| 代理商： | SWPTC-01 |
PTC-01
Software for MLX90215
PTC-01 Programmer User’s Manual Rev 1.2 15/NOV/2001 Page 21
Section 9 Troubleshooting
1) The programmer fails to responds.
This is most often the result of a communications problem between
the PC and the programmer. Check the cable connections and communications settings in the preferences
window. Look at the busy Indicator on the programmer. The indicator will blink when communication has
been established. Try resetting the programmer using the reset switch.
2) Readback function shows all bits have been zapped.
Make sure the device is inserted in the socket cor-
rectly. If the device is inserted backwards it may be hot. Use caution when removing it and discard the de-
vice. Excessive current draw by the programmable supply may give false results. The readback functions
works by measuring the device current (Idd). If the programmable power supply is sourcing more than 8mA
the readback and verify functions may give false results.
3) After the device is zapped the output measured in ROM differs to the output measured in RAM.
Use
the readback function to verify the correct code has been programmed. Bits may have been zapped inadver-
tently. Try to follow the recommended procedure in the applications setting. Setting the TC parameter last
may cause the sensitivity to shift. Also use ratiometric measurements. Variations in the supply voltage will
appear on the sensors output.
4) Programmable supply (Vdd) displays incorrectly.
The adjustable Vdd uses a single precision floating
point number. However, the display is set for only three digits. When editing the parameter use the arrow
keys to place the cursor at most significant digit (left) for proper display.
5) Auto-calibration routine will not converge.
This is usually caused by specifications outside the range of
the device. Try adjusting the input and output parameters. Check the results to see what parameters are out
of specifications. Both the rough and fine gain should not be at their limits. Verify the input parameters are
correct.
For technical support please contact Melexis
Melexis Inc. USA
41 Locke Road, Concord, NH 03301
Phone: +1 603 223 2362 Fax: +1 603 223 9614
E-mail: sales_usa@melexis.com
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