Cirrus Logic CDB5529 - Manual (Page 6)

CDB5529
6 DS246DB1
Software
The evaluation board comes with software and an
RS-232 cable to link the evaluation board to the
PC. The executable software was developed with
Lab Windows/CVI
TM and meant to run under Win-
dows TM 3.1 or later. After installing the software,
read the readme.txt file for last minute changes in
the software. Additionally, Part II: Software fur-
ther details how to install and use the software.
IBM, AT and PS/2 are trademarks of International Busi-
ness Machines Corporation.
Windows is a trademark of Microsoft Corporation.
Lab Windows and CVI are trademarks of National
Instruments.
SPI is a trademark of Motorola.
MICROWIRE is a trademark of National Semiconduc-
tor.
Name Function Description
HDR1 Used to switch AIN+ between J1 input
and AGND.
HDR2 Used to switch AIN- between J1 input
and AGND.
HDR3 Used to switch digital power for the
converter (VD+) from positive analog
supply header (+5V/2.5V Analog) to
the positive digital supply header
(+5V/3.3V Digital).
HDR4 Does not exist.
HDR5 Used to switch VREF+ and VREF-
pins from external J1 connection
header to the on board LT1019 refer-
ence.
HDR6 Used to connect external micro-con-
troller.
HDR7 Used in conjunction with the self test
modes to test the UART communica-
tion between the microcontroller and
the PC.
HDR8 Used to switch the analog compo-
nent’s (LT1019 and converter) nega-
tive potential between the -2.5V
Analog header and AGND.
HDR9 Used in conjunction with HDR3 to
switch the digital ground of the con-
verter (DGND) from the AGND header
to the DGND header.
HDR10 Used to switch the A0 and A1 output
switches of the converter into the
microcontroller. These shunts must be
disconnected when the converter
powered from bipolar supplies.