PG-FP5 CHAPTER 4 PROGRAMMING GUI USAGE
R20UT0008EJ0400 Rev. 4.00 Page 51 of 240
Jul 15, 2010
(3) [Checksum] command
The [Checksum] command calculates the checksum of the selected program file downloaded to FP5 and displays
the result. When this command is executed, the Checksum dialog box appears. Select the optional calculation
method and the target address range, and click the OK button. The result will then be displayed in the [File
Checksum] area in the action log window and programmer parameter window. This command can be executed
after the [Setup] command is executed. If the [Setup] command is executed again after the [Checksum] command
is executed, the result displayed in the [File Checksum] area in the programmer parameter window will be cleared.
The [Checksum...] dialog box display varies whether or not the downloaded PR5 file is for a target device that
supports data flash.
Figure 4-10. Checksum Dialog Box
(a) The downloaded PR5 file is for a target device
that does not support data flash
(b) The downloaded PR5 file is for a target device that
supports data flash
<1> Programming area
The valid programming area is displayed.
<2> Checksum calculation mode selection
Select the mode for calculating checksum of the selected program file.
Arithmetic checksum (16bit): 16-bit arithmetic (subtraction)
CRC sum (32bit): 32-bit CRC
Remark With the 16-bit arithmetic (subtraction) mode, the lower 4 digits of the result from which a value is subtracted
from 00h in 1-byte units are displayed. With 32-bit mode, the 8-digit result of CRC32 function calculation is
displayed. For details on arithmetic specifications, refer to Figure B-2 32-bit CRC Calculation
Specifications.
<1>
<2>
<1>
<2>
<3>
<3>
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