Pacific Research Solutions PET-820 User Manual

Page 36

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Pacific Research

PET-820 User Manual

Page 35

4.5.46 SYSTEM EEPROM INITIALIZATION

This command will re-initialize all of the systems characteristics to the original factory default settings. CAUTION! When
using this command any changes or new characteristics that have been stored will be lost including passwords, key code and
program authorization codes. In order to operate this command the user must include the unit serial number. This is a 8 digit
number that is identified on top of the program EPROM and on the circuit board. The program authorization is not required
to execute this command so caution should be taken in identifying it to unqualified users the unit serial number and use of
this command.

COMMAND CODE:

81

PROGRAM SYNTAX:

81 [Serial No.]

4.5.47 CHANGE DIRECT BYTE IN EEPROM

This command allows the user to change direct bytes in the EEPROM for purpose of debugging and solving certain types of
problems. Care should be taken in using this command because it is not necessary for normal programming operations.
Please refer to the EEPROM address chart located in APPENDIX-D of this manual when implementing this command.

COMMAND CODE:

82

PROGRAM SYNTAX:

82 [Address] [Data] #

READ BACK SYNTAX:

82 [Address] #

WHERE:

Address = 3 digit value, decimal
Data = 3 digits value, decimal

EXAMPLE:

82 001 025 # = Change address byte address 001 to 025

4.5.48 DEMONSTRATE SPEECH LIBRARY

This command may be used for purpose of demonstrating all words in the speech library. The library contains over 390
words. The program authorization code is not required to execute this command.

COMMAND CODE:

83

PROGRAM SYNTAX:

83 #

4.6

ANALOG INPUT OPTION, PROGRAMMING COMMANDS

The programming commands for the analog option work in the same manner as the standard programming commands.
These commands provide two main function types. First, are commands that are used to configure the analog converter and
how it operates. Second, are commands that are used to set up scaling factors for each of the inputs.

In most all of the analog commands, data is referred to as ADC values plus and minus 0000 through 4095. This is the total
range of the analog converter. These are the counts of the analog converter and each count in the high scale equals 1
millivolt. In other words, an analog count of 1000 would be 1000 millivolts or 1.000 volts. In the low scale each count
equals 100 microvolts, an analog count of 1000 in this scale would equal 1000 microvolts or 0.1000 volts.

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