http://computer-programming-forum.com/46-asm/43bd3f5c78a13ac4.htm WebJun 15, 2009 · Onboard Serial Port: This setting allocates an address and IRQ for your motherboard's serial port. Unless you're experiencing any IRQ conflicts, you should leave this setting on Auto (if it's an...
Solved Question 2. Consider the following code (Serial - Chegg
Webwhat i basically want to do is do a chat thing using serial ports, pretty much like Choink23 is trying to do in another thread. here's the code i've done so far: segment .text global _asm_main _asm_main: enter 0,0 pusha mov dx, 0 ;send 'a' through com1 mov al, 'a' mov ah, 1 int 14h mov ah,3 ;check serial port status int 14h ;to check if data is ... WebFor the standard PC ports, the UART registers are based at 3F8h (COM1), 2F8h (COM2), 3E8h (COM3), and 2E8h (COM4). COM1 and COM3 share interrupt request line IRQ4 while COM2 and COM4 share request line IRQ3. This means that COM1 and COM3 can't be used concurrently and is similarly true for COM2 and COM4. columbustravel.nl/win
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WebJan 23, 2024 · You should plan to have your modem use one of the standard settings listed below for the best software compatability even though your modem may support IRQ 2, 3, 4, 5 or 7. It important to make sure that no other device is configured to use the same IRQ and I/O address as your modem. WebDec 12, 2024 · IO=3F8h; IRQ=4 IO=2F8h; IRQ=3 IO=3E8h; IRQ=4 IO=3E8h; IRQ=3 what does it do and which option should I set it for better performance Related Topics Asus Computer … WebJul 24, 2007 · mov al, 42 out 3F8h, al Unless you're in real mode, the OS may have something to say about whether you can actually access the port... Best, Frank. Logged nobody Guest; Re: send characters through serial port « Reply #2 on: July 24, 2007, 01:22:57 AM ... dr troy gilson cleveland tn