DLP-245SY-G DLP Design Inc, DLP-245SY-G Datasheet - Page 3

• Manufacturer Part Number: DLP-245SY-G
• Description: MODULE USB-MCU FT245RL W/SX48
• Manufacturer: DLP Design Inc

Specifications of DLP-245SY-G

• Module/board Type: Development Board
• Product: Microcontroller Modules
• Data Bus Width: 8 bit
• Core Processor: SX48
• Clock Speed: 50 MHz
• Interface Type: USB
• Flash: 4 KBytes
• Operating Supply Voltage: 5 V
• Board Size: 56.8 mm x 22.9 mm x 22.3 mm
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• For Use With/related Products: USB
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant, Lead free / RoHS Compliant
• Other names: 813-1006

When the host sends data to the peripheral over USB, the FT245RL will take RXF# low to let the
microcontroller know that at least one byte of data is available. The microcontroller then reads
the data until RXF# goes high indicating that no more data is available to read.
By using FTDI’s virtual COM port drivers, the peripheral looks like a standard COM port to the
application software. Commands to set the baud rate are ignored--the FT245RL always transfers
data at its fastest rate (up to 3 megabits per second using VCP drivers) regardless of the
application’s baud-rate setting. The latest versions of the drivers are available for download from
DLP Design’s website at http://www.dlpdesign.com.
DRIVER SOFTWARE
FTDI's VCP (virtual COM port) driver-executable files are provided royalty free on the condition
that they are used only with designs incorporating an FTDI device (i.e. the FT245RL and
DLP-245SY-G). The latest version of the drivers can be downloaded from dlpdesign.com or
ftdichip.com. Once loaded, the VCP drivers allow your application software running on the host
PC to communicate with the DLP-245SY-G as though it were connected to a COM (RS-232) port.
In addition to VCP drivers, FTDI's D2XX direct drivers for Windows offer an alternative solution to
the VCP drivers that allow application software to interface with the DLP-245SY-G using a DLL
instead of a virtual com port. The architecture of the D2XX drivers consists of a Windows WDM
driver that communicates with the FT245RL device via the Windows USB stack and a DLL that
interfaces the application software (written in VC++, C++ Builder, Delphi, VB, etc.) to the WDM
driver. An INF installation file, uninstaller program, and D2XX Programmer’s Guide complete the
package.
The D2XX direct drivers add support for simultaneous access and control of multiple FT245RL
devices. The extended open function (FT_OpenEx) allows the device to be opened either by its
product description or serial number, both of which can be programmed to be unique. The list
devices function (FT-ListDevices) allows the application software to determine which devices are
currently available for use, again by product description or by serial number.
Several new features have been recently added to the D2XX drivers. Functions are provided to
program the EEPROM (FT_EE_Program) and read the EEPROM (FT_EE_Read). Unused space
in the EEPROM is called the user area (EEUA), and functions are provided to access the EEUA.
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