PC interfacing
An attempt to show how to build various PC interfacing projects with schematics ans source code in a variety of langauages including various vaersions of C , Visual Basic and QBasic
Programming the RS232 serial port via C
This article explains how to program the rs232 serial port using turbo C. Uses bioscom funtion in the tutorial. With good example program explaines PC to PC chat with direct cable connection. Connect 2 pc's using just a 3-wirelink!
Using Interrupts
A dedicated document exploring the use of interrupts on your PC. Includes information on the IRQ 2 to IRQ 9 Re-direction, the 8259 and compatible Programmable Interrupt Controller (PIC), Initialization Command Words (ICW's), Operation Command Words (OCW's), Interrupt Service Routines (ISR), Interrupt vectors and using interrupts under the C environment.
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