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FLEX-5000/3000 EEPROM Checksum Reset Procedure
FLEX-5000/3000 EEPROM Checksum Reset Procedure
System Dependencies
Minimum PowerSDR Version: 1.16.1
Applicable Hardware:
FLEX-5000 & FLEX-
3000
Content provided by: FlexRadio Systems Engineering
PowerSDR v1.16.1 and above contains an EEPROM data integrity mechanism to ensure that the
EEPROM data in the PowerSDR database is consistent with the data stored in the EEPROM
using a calculated checksum value. A checksum is a value calculated from a block of binary data
that is stored and used later to detect possible accidental errors introduced during the
transmissions or storage of EEPROM data.
If the calculated checksum values in the PowerSDR 1.x database do not match the radio's
EEPROM data, then you will need to reset and recalculate the EEPROM checksum values.
If there is a checksum mismatch, you will receive error such as the the ones below:
- RX1 Image Gain Checksum Error DB: A1 EEPROM: A0 Calculated: A1
- PA Bridge Checksum Error DB: CB EEPROM: F5 Calculated: CB
- TX Image Phase Checksum Error DB: E1 EEPROM: FF Calculated: E1
- TX Carrier Checksum ErrorDB: 18 EEPROM: FF Calculated: 18
Note: If you continue to have checksum errors after you have reset the checksums, this
indicates some kind of instability in the interface to the EEPROM and/or the database
representative of a much more serious problem. You should contact FlexRadio Support
immediately for further analysis for the root cause of the problem.
EEPROM Reset Procedure
Step 1. Bring up PowerSDR v 1.16.1
Step 2. Type ++C. The EEPROM management form will appear. See Figure 1
below.
Figure 1
NOTE: The FLEX-5000 does not have the capability to have a second receiver, therefore the
FLEX-3000 will not display the RX2 EEPROM menu options.
Step 3. In the RX1/PA section, click on the "Reset RX1/PA Checksums" button. A confirmation
dialog box will be displayed. Click on Yes to reset the RX1/PA EEPROM checksum values in the
database. See Figure 2 below.

Figure 2
Step 4. If you have a FLEX-5000 RX2 installed, click on the "Reset RX2 Checksums" button in
the RX2 section of the EEPROM Management form. A confirmation dialog box will be displayed.
Click on Yes to reset the RX2 EEPROM checksum values in the database.
Step 5. Close the EEPROM Management form and shut down PowerSDR. When PowerSDR is
restarted, new checksums will be automatically calculated and you should no longer receive the
checksum error(s) when the program starts.
WARNING: Be very careful using this EEPROM management form. Do not click on the
Save calibration Data to EEPROM button without explicit instructions to do so or you could
possibly corrupt your EEPROM with bad calibration data. This action performs an
EEPROM write operation and if bad data is written to the EEPROM, you may have to return
your software defined radio to FlexRadio Systems for a full factory recalibration especially
if the PA Bridge data has been compromised.
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Last Modified By: Administrator, Saturday, March 14, 2009
http://kc.flex-radio.com/KnowledgebaseArticle50378.aspx
Sunday, August 02, 2009