ST UM0250 User Manual

UM0250
User manual
Getting started with the ST7
Low-speed USB/RS232 Evaluation Kit
Introduction
The Low-speed USB/RS232 Evaluation Kit (STEVAL-PCC02V1) has been created to
provide a complete reference design for a serial port bridge as well as an evaluation board
for ST72F63B/60 devices in QFN40 package. This application is used to interface between
devices with a serial port (RS-232 type) and a host computer USB port. USB data transfers
comply with HID-class protocols.
The bridge is based on a USB low-speed microcontroller manufactured by
STMicroelectronics which provides a maximum guaranteed USB transfer rate of 800 bytes
per second. Flow control has therefore been implemented to ensure data transfer integrity
when interfacing with the serial port at rates up to 38400 bits per second (bps).
The bridge application is evaluated on a PC by running a dedicated applet that controls and
monitors data transfers on both the USB and serial COM ports.
The included hardware provides In-Circuit Programming (ICP) capabilities for the
microcontroller and almost all the MCU's I/Os are available on expansion connectors to
evaluate different applications.
The RS-232 part can be separated by removing the appropriate soldering joints (shunts).
This can be used to modify certain firmware or hardware parameters for evaluation or
customization purposes.
The following development tools can be ordered separately: assembler, linker, C compiler,
source level debugger, hardware emulator, programming boards and gang programmer. For
ordering information, see our website at http://www.st.com/mcu or contact your local sales
office.
July 2006 Rev 1 1/12
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