2.0 ELECTRICAL INTERFACE DESCRIPTION
Refer to the electrical schematic at the end of this document for additional details.
Pin
1
2
3
4
5
6
7
8
9
10
11
12
13
14
Description
MCLR
Vin1
B6/PGC
Vin2
SWVCC
B0
Ground
Ground
B7
B1
B3
B4
Ground
Ground
Comments
Pulling this pin to ground will reset the microcontroller.
See Note1.
Analog input for voltages in the range of ±3V.
Analog in (0-3V) or digital I/O. See Note1, Note2.
Analog input for voltages in the range of ±3V.
3 Volt output; switched on once host enumeration is
complete. See Note1.
Digital I/O; See Note2.
Note1.
Analog in (0-3V) or digital I/O. See Note1, Note2 .
Digital I/O. See Note2.
Digital I/O. If held low at power up, Pointing Device
functionality is activated. See Note2.
Digital I/O. See Note2.
Note1 : These pins are used for reprogramming the Flash program memory area (a user-supplied device
programmer is required).
Note2 : Weak pull-ups in the microcontroller are enabled for Port B by default.
2.1 SOFTWARE INTERFACE DESCRIPTION
Royalty-free Virtual COM Port drivers are available for immediate download from www.dlpdesign.com . The
VCP drivers are available for the following systems:
? Windows 2000 / XP / VISTA
? Windows CE
? MAC OS-8 and OS-9 (Mouser function not supported)
? MAC OS-X (Mouser function not supported)
? Linux 2.40 and greater
The DLP-TILT supports two standard baud rates: 38,400 (power-up default) and 128,000 baud.
Communication with the DLP-TILT is accomplished by simply opening the COM Port at 38,400 baud and
sending single-byte commands. The commands are outlined in Section 3.0.
2.2 QUICK START GUIDE FOR WINDOWS
A.
B.
C.
Download the modified Virtual COM Port (VCP) drivers from www.dlpdesign.com. Unzip these files into a
new folder. The VCP drivers that are part of the Windows XP operating system will not work as the PID
code has been changed to FBFA.
Connect the DLP-TILT module to the host PC, then load the USB drivers obtained in Step A.
Open Device Manager and look in “Ports (COM & LPT)” to determine the COM port number that Windows
has assigned to the DLP-TILT module.
Rev. 1.1 (May 2009)
3
? DLP Design, Inc.
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