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TDC-GP30
Software Menu
Demo Kit Manual
• PUBLIC
UG000292
• v1-00 • 2019-Feb-26
40
│ 26
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The last four addresses of the FW Data 2 section contain the checksums which are stored to
GP30 when downloading firmware to GP30. These fields are directly updated, when firmware
files are loaded or content of firmware data fields are changed.
●
Pressing
the “Verify FW” button after downloading compares the content of the NVRAMs with
the given files by their checksums. The software calculates the checksum of the given files and
reads the calculated checksums of GP30 as well as the stored checksums at the end of FWD2
section. Note: The firmware data file word 127 is by default empty, not knowing the checksum of
the on-chip
ams
firmware.
Figure 26:
Firmware ams Code
So copy manually the calculated checksum for the
ams
code into the field “Checksum FWY manual
entry”. Word 127 in the data will be updated and after downloading again the verification will pass for
all.
Figure 27:
Verification by Calculated Checksum
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In the “Firmware ams Code” section, the checksums for the
ams
firmware code are also
checked and displayed after a “Verify FW”. The
ams
firmware code cannot be modified by user.
Therefore a checksum calculated by software field is missing in this section.
●
A lock state of GP30 or a hang-up, caused by a faulty firmware user code can be dissolved by
pressing “Erase FW” button. After that, a new firmware (user code & data) need to be
downloaded again.
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CPU Values
This tab is only for customer who uses the ams firmware for flow calculation.
It reads out some
important CPU values like water temperature, flow, velocity, etc.
To enable the readout the “Read
calculated values” checkbox has to be set.
The lower sections allows to read from any RAM addresses.