On Time RTOS-32 Documentation

Welcome

RTTarget-32

RTTarget-32 Programming Manual

RTTarget-32 Reference Manual

Introduction

RTTarget-32 Configuration

Memory Mapping and Management

Real-Time Clock and CMOS RAM

Keyboard

Mouse and Touch Screen Driver

Parallel Port Printer

Serial Port I/O

Function RTInitCOMPort

Function RTCloseCOMPort

Function RTSendChar

Function RTSendCharTimed

Function RTSendBlock

Function RTSendBlockTimed

Function RTSendBufferCount

Function RTReceiveBufferCount

Function RTReceiveChar

Function RTReceiveCharTimed

Function RTCOMError

Function RTLineStatus

Function RTModemStatus

Function RTModemControl

PCI BIOS

Plug-and-Play BIOS

PC Cards (PCMCIA)

MetaWINDOW Initialization

Run-Time System Support

System Management BIOS (SMBIOS)

Advanced Programmable Interrupt Controller (APIC)

Multiprocessor Management

Spinlocks

Advanced Configuration and Power Interface (ACPI) Tables

Extended RAM Management

Function RTReceiveBufferCount

The status of the receive buffer can be enquired with this function:

int RTReceiveBufferCount(int Port);

Parameters

Port

Must have value RT_COM1 .. RT_COM4.

return value

The number of bytes currently in the receive buffer for the specified port.

Left Serial Port I/O

Function RTSendBufferCount

Down Function RTReceiveChar