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Simply connect the DLP-HS-FPGA to the PC to initiate the loading of USB drivers. Once the USB
drivers are loaded, the DLP-HS-FPGA is ready for use. All commands are issued as multi-byte
command packets consisting of at least two bytes.
You can either utilize the Test Application available from http://www.dlpdesign.com/test.shtml with
the DLP-HS-FPGA (as described in Section 12), or you can write your own program in your language
of choice.
If you are using the VCP drivers, begin by opening the COM port, and send multi-byte commands as
shown in Table 1 below. There is no need to set the baud rate because the DLP-HS-FPGA uses a
parallel interface between the USB IC and the FPGA. (The Ping Command can be used to locate the
correct COM port used for communicating with the DLP-HS-FPGA, or you can look in Device
Manager to see which port was assigned by Windows.) If you are using the D2XX drivers as with the
Test Application, no COM port selection is necessary.
TABLE 1
Command Packets
Command
Hex
Packet
Description
Byte
Value
Return/Comments
Ping
Issues Ping
0
0x00 Ping Command - 0x56 will be returned indicating that
the DLP-HS-FPGA is found on the selected port.
Read
Version/
Status
Accesses
the internal
version/
status
registers
0
1
0x10 Read Version/Status Registers Command
0xnn Register Address: 0xnn =
0x00 = Board ID (0x11 = Production PCB)
0x01 = FPGA Type ID : 0x3A = XC3S200A
0x4A = XC3S400A
0x02 = Design Version ID 1 (Design Month)
0x03 = Design Version ID 2 (Design Day)
0x04 = Design Version ID 3 (Design Year)
0x05 = Design Version ID 4 (Design Version)
0x06 = DDR2 Status: 0x00 = Not Initialized
0x01 = Initialized
Loopback
Loopback
Compliment
Returns the
data byte
received
Returns the
compliment
of data byte
0
1
0
1
0x20 Loopback Command
0xnn The byte sent to the DLP-HS-FPGA (0xnn) will be
returned back.
0x21 Loopback Compliment Command
0xnn The byte sent to the DLP-HS-FPGA (0xnn) will be
complimented and returned back.
received
Read Pin
Reads the
state of one
of the user
I/O pins
0
1
0x30
0x00
–
0x3E
Read Pin Command
The user I/O pin numbers are described in Table 2.
User I/O pin 0xnn is read and returns:
0x00 = User I/O pin 0xnn is low
0x01 = User I/O pin 0xnn is high
Rev. 1.7 (May 2011)
10
? DLP Design, Inc.
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