ST20-PPI ST Microelectronics, ST20-PPI Datasheet - Page 2

• Manufacturer Part Number: ST20-PPI
• Description: PC PARALLEL PORT TO OS-LINK INTERFACE
• Manufacturer: ST Microelectronics

ST20-PPI PC Parallel Port to OS-Link Interface
1
The ST20-PPI parallel port to OS-Link interface is a host interface to allow connection
from a PC parallel port to any OS-Link based ST20 development board such as the
ST20450-SAB. The interface plugs into any standard PC 25 way D-type parallel port.
Supported parallel port modes are:
depending on which mode the host PC can support. Connection to the development
target is via a differential OS-Link connector, as used on the IMS B300 and ST20450-
Development Board. Once connected, the development target can be accessed with
the standard ST20 Toolset using the MS Windows drivers supplied.
2
2.1
The ST20-PPI has three connections: Parallel port; Differential OS-Link and Power
supply. To install the hardware, the following steps should be followed:
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Introduction
Nibble mode
Byte mode
EPP mode
Hardware Installation
Plug the 25-way D-type of the parallel port cable built into the interface, into the
parallel port of the PC
Plug the target development system into the 26-way D-type using a differential
OS-Link cable or the differential-to-single ended cable depending on the link
interface available on the target board
NOTE: To comply with EMC regulations this cable must use shielded cable
with shielded headshells at either end.
Plug power supply cable into PSU socket of the interface
Plug the power supply into the mains socket.
Switch on the PC
Switch on the power supply. The power LED on the interface should illuminate
when the power supply is switched on
Installation