4. Commands
4-54
UniSite-xpi User Manual
Sumcheck Display
The sumcheck is a hexadecimal number that, when compared to the
original data, allows you to verify that a copy of the data matches the
original data. Remember, you must select a device before you calculate
the sumcheck. The sumcheck is computed by adding each 8-bit byte in
the specified data range into a 32-bit result with the carry dropped.
The sumcheck can be displayed as 8-bit, 16-bit, or both. To switch
between displayed values, set the Checksum Calculation flag (located
under Programming Parameters or in Sumcheck Display) to the desired
value
Below, the options for sumchecking logic and memory are described,
with logic devices explained first, followed by memory devices.
Sumcheck Logic
Device
If you have selected a logic device, then the Sumcheck Logic Device
screen appears.
To sumcheck a logic device, follow these steps:
1.
Select and socket a logic device.
2.
Press E
NTER
, and UniSite-xpi calculates the 4-digit sumcheck of the
fuse pattern. The sumcheck is displayed in the message bar.
More
Com-
mands
Sumcheck
Display
Sumcheck
Logic
Device
Device
Checks
Summary of Contents for UniSite-xpi
Page 2: ...981 0014 UniSite Programming System User Manual Also Covering Legacy UniSite Programmers ...
Page 72: ...2 Setup and Installation 2 42 UniSite xpi User Manual ...
Page 134: ...3 Getting Started 3 62 UniSite xpi User Manual ...
Page 238: ...5 Computer Remote Control 5 10 UniSite xpi User Manual ...
Page 296: ...6 Translation Formats 6 58 UniSite xpi User Manual ...
Page 402: ...Keep Current Subscription Service 6 Keep Current ...