HS COM C Source Library

Overview

HS COM is a serial communication library implemented in C language. HS COM currently runs on Windows.

HS COM serves as an interface layer beetween applications and low level Windows serial communication API.

HS COM allows applications communicate with any device presented in the OS as a COM port. The physical interface may in be RS232, USB, IRDA, Bluetooth, etc.

HS COM supports working concurrently with 100 COM ports (COM1 to COM100)

The use of HS COM C Source Library is Royalty Free.

HS COM C Library features

HS COM supports the following features when working with COM ports::

• Asynchronous non-blocking operation
• Sending Data (either as buffers or individual bytes)
• Receiving data, supporting either receive buffer callback or polled interface
• Controlling serial port lines RTS, DTR
• Full range of COM port baud rates: 110 to 256000
• Setting number of data bits, stop bits and parity
• Hardware (RTS/CTS) , software XON/XOFF or NONE flow control

Internally, HS COM implements receive and transmit buffer queues, serial communication receive and transmit threads and uses asynchronous overlapped IO. This makes it easy for applications to add serial communication support by using HS COM C Source Library

HS COM C Source Library is supplied with full C source code and documentation

HS COM is intented to be used from C/C++ applications.

The terms of HS COM source code license provide for the royalty free use, derivative works, use within and outside your company and re-distribution as part of your products.

API Summary

• HsComInit
• HsComCleanUp
• HsComOpenPort
• HsComClosePort
• HsComWriteBuffer
• HsComWriteByte
• HsComFlushTx
• HsComReadByte
• HsComExtendedFunc

Customization

Hillstone Software provides additional services for customization, porting and integration of the library code to better suit the needs of your products