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لطفا دستورات لازمو برام بنویسید
ایا میتوان با Cداده از کیبورد گرفت و به پورت سریال ارسال کرد؟؟
لطفا دستورات لازمو برام بنویسید
#include <stdio.h> #include <stdlib.h> #include <dos.h> #include <math.h> #include <conio.h> #include <bios.h> #define INTR 0X14 #define __CPPARGS ... #define PORT1 0x3F8 /* Port Address Goes Here */ #define INTVECT 0X0C /* Com Port's IRQ here (Must also change PIC setting) */ /* Defines Serial Ports Base Address */ /* COM1 0x3F8 */ /* COM2 0x2F8 */ /* COM3 0x3E8 */ /* COM4 0x2E8 */ int bufferin = 0; int bufferout = 0; char ch; char buffer[1025]; void interrupt (*oldport1isr)(__CPPARGS); void interrupt PORT1INT(__CPPARGS) /* Interrupt Service Routine (ISR) for PORT1 */ { int c; do { c = inportb(PORT1 + 5); if (c & 1) {buffer[bufferin] = inportb(PORT1); bufferin++; if (bufferin == 1024) {bufferin = 0;}} }while (c & 1); outportb(0x20,0x20); } void main(void) { int c; outportb(PORT1 + 1 , 0); /* Turn off interrupts - Port1 */ oldport1isr = getvect(INTVECT); /* Save old Interrupt Vector of later recovery */ setvect(INTVECT, PORT1INT); /* Set Interrupt Vector Entry */ /* COM1 - 0x0C */ /* COM2 - 0x0B */ /* COM3 - 0x0C */ /* COM4 - 0x0B */ /* PORT 1 - Communication Settings */ outportb(PORT1 + 3 , 0x80); /* SET DLAB ON */ outportb(PORT1 + 0 , 0x0C); /* Set Baud rate - Divisor Latch Low Byte */ /* Default 0x03 = 38,400 BPS */ /* 0x01 = 115,200 BPS */ /* 0x02 = 57,600 BPS */ /* 0x06 = 19,200 BPS */ /* 0x0C = 9,600 BPS */ /* 0x18 = 4,800 BPS */ /* 0x30 = 2,400 BPS */ outportb(PORT1 + 1 , 0x00); /* Set Baud rate - Divisor Latch High Byte */ outportb(PORT1 + 3 , 0x03); /* 8 Bits, No Parity, 1 Stop Bit */ outportb(PORT1 + 2 , 0xC7); /* FIFO Control Register */ outportb(PORT1 + 4 , 0x0B); /* Turn on DTR, RTS, and OUT2 */ outportb(0x21,(inportb(0x21) & 0xEF)); /* Set Programmable Interrupt Controller */ /* COM1 (IRQ4) - 0xEF */ /* COM2 (IRQ3) - 0xF7 */ /* COM3 (IRQ4) - 0xEF */ /* COM4 (IRQ3) - 0xF7 */ outportb(PORT1 + 1 , 0x01); /* Interrupt when data received */ printf("\nSample Comm's Program. Press ESC to quit \n"); do { if (bufferin != bufferout){ch = buffer[bufferout]; bufferout++; if (bufferout == 1024) {bufferout = 0;} printf("%c",ch);} if (kbhit()){c = getch(); outportb(PORT1, c);} } while (c !=27); outportb(PORT1 + 1 , 0); /* Turn off interrupts - Port1 */ outportb(0x21,(inportb(0x21) | 0x10)); /* MASK IRQ using PIC */ /* COM1 (IRQ4) - 0x10 */ /* COM2 (IRQ3) - 0x08 */ /* COM3 (IRQ4) - 0x10 */ /* COM4 (IRQ3) - 0x08 */ setvect(INTVECT, oldport1isr); /* Restore old interrupt vector */ }
دیدگاه