Vicor PI33XX-2X I2C Digital Interface Guide - Manual (Page 4)

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PI33XX-2X I
2
C Digital Interface Guide
Name Address HEX # Bits Description
TSTMDE[2:0] 18 3
Test mode register used for burning bits into non-volatile
memory
MRGN[3:0] 19 4 Volatile register for output voltage margining.
FLT[7:0] 1A 8 Fault Register read only
FREG_CLR 1B 0
Register for clearing the Fault Register-writing address
clears register.
ENA_POL 20 1 EN pin polarity programming bit
SYN[3:0] 21 4 SYNC programming. SYN[3]= SYNC polarity
KBIT2 22 1
User kill bit for SYN[3:0] and ENA_POL - can not be
reversed. Register is write only, can not be read
Table 2 – User Accessible Registers
Software Installation and Operation
Users downloading the Picor Buck GUI should save the compressed file in a desired directory. The user should
unzip the compressed file and run the executable installation file “PicorBuckGuiFull.exe”. The installer will then
install the Picor Buck GUI in either the default Programs directory or to a directory specified by the user. Once the
software is installed, the user should next plug in the LinkM into a dedicated USB port. The LinkM will detect and
use a valid driver without the need of installing one. If the LinkM device is not detected, the user should consult
the LinkM homepage at http://linkm.thingm.com/. If the LinkM is not installed, the Picor Buck GUI will not start
and an error message will be generated like the one shown in Figure 3.
Figure 3 - Error message due to missing LinkM upon software start
Successful installation of the LinkM Interface should result in a successful start up screen of the Picor Buck GUI as
shown in Figure 4. First a dialog box will pop up indicating proper detection of the LinkM. When the user clicks the
“OK” button, that box will disappear. The Picor Buck GUI program screen will appear as shown in the bottom half
of Figure 4.