- 3F8/IRQ4 (COM1): Sets the serial port to the I/O address and IRQ normally used by COM1. This is usually the default for the first serial port. 2F8/IRQ3 (COM2): Sets the serial port to the I/O address and IRQ normally used by COM2. This is usually the default for the second serial port.
- This document describes how to identify and resolve IRQ and COM port conflicts. The first serial communications port on the PC. (2F8) COM2: IRQ3. (3F8) port active and a COM3 (3E8) port active. Notice that the COM3 is in the COM2 column. This is incorrect. This is due to a DOS feature called Address Packing.
- If you don't specify any I/O ports for devices on an x86 system, devc-ser8250 assumes you want to use the standard PC ports of COM1 (3f8,4) and COM2 (2f8,3). The serial driver's priority floats to the priority of the client.
- PCI Card supports 2 port RS232 1 port Parallel with Powered I/O pin1 5V/12V/DCD or pin9 5V/12V/RI selectable Windows 10 driver supports.
This document describes how to identify and resolve IRQ and COM port conflicts. The first serial communications port on the PC. (2F8) COM2: IRQ3. (3F8) port active and a COM3 (3E8) port active. Notice that the COM3 is in the COM2 column. This is incorrect. This is due to a DOS feature called Address Packing.
Use Computer Setup (F10) Utility to do the following:
- Set the system date and time.
- Set, view, change, or verify the system configuration, including settings for serial and parallel ports.
- Modify the boot order of bootable devices.
- Establish a supervisor password that controls access to Computer Setup (F10) Utility and the settings described in this section.
The VGA port on the ap5000 is a Powered VGA Port. If your monitor does not support the “Powered VGA” feature, make sure to plug it in prior to powering on the POS system in order to prevent possible damage to your monitor.
Using Computer Setup (F10) Utilities
Computer Setup can be accessed only by turning the computer on or restarting the system. To access the Computer Setup Utilities menu, complete the following steps:
- As soon as the computer is turned on, press F10 before the computer boots to the operating system to enter Computer Setup.
note:
If you do not press F10 at the appropriate time, you must restart the computer and again press F10 before the computer boots to the operating system to access the utility. - The Computer Setup Utility screen is divided into menu headings and actions.Five menu headings appear on the Computer Setup Utility screen:
- Advanced
- Security
Use the arrow keys to select the appropriate heading, then press Enter. Use the arrow (up and down) keys to select the option you want, then press Enter. To return to the previous screen, press Esc.
Do NOT turn the computer power OFF while the ROM is saving the Computer Setup (F10) changes because the CMOS could become corrupted. It is safe to turn off the computer only after exiting the F10 Setup screen.
Computer Setup—Main
note:Support for specific Computer Setup options may vary depending on the hardware configuration.
Description |
Allows you to view:
|
System Time |
System Date |
Computer Setup—Advanced
note:Support for specific Computer Setup options may vary depending on the hardware configuration.
warning:Setting items on this menu to incorrect values may cause your system to malfunction.
Description | |
Allows you to configure the SATA ports as one of the following: | |
Super IO Configuration |
|
USB Configuration |
|
Allows you to select the brightness level of the LCD panel form 0 through 7. 0 is the lowest brightness and 7 is the highest brightness. | |
Allows you to select system restart behavior after power loss: | |
Wake On LAN | Allows you to disable or enable wake-on-LAN to generate a wake event. |
Allows you to disable or enable HD audio. | |
Allows you to disable or enable factory recovery boot support. | |
Allows you to disable or enable the PXE option ROM for the integrated/onboard LAN. | |
Allows you to enable or disable the option to press the F9 key to access the Diagnostics menu during computer startup. | |
Allows you to enable or disable the option to press the F10 key to access the Setup menu during computer startup. | |
Allows you to enable or disable the option to press the F12 key to access the Boot from LAN option during computer startup. | |
Allows you to enable or disable the spread spectrum. |
Computer Setup—Boot
note:Support for specific Computer Setup options may vary depending on the hardware configuration.
Description | |
2nd Boot Device 4th Boot Device | Allows you to specify the boot sequence from the list of available devices. The number of boot devices listed depends on how many bootable devices are installed. Devices that have been disabled will appear in parentheses. |
Computer Setup—Security
note:Support for specific Computer Setup options may vary depending on the hardware configuration.
Description |
Allows you to view the Supervisor Password. |
Allows you to view the User Password. |
Allows you to change the Supervisor Password. |
Allows you to change the User Password. |
Computer Setup—Exit
![Serial Serial](/uploads/1/2/4/7/124737728/714273901.png)
Support for specific Computer Setup options may vary depending on the hardware configuration.
Description |
Press Enter to exit saving changes. |
Press Enter to exit discarding changes. |
Press Enter to load setup defaults. |
Active5 years, 6 months ago
I have a Coin Counter Machine(SC350/360) which connects to a computer via RS232C Interface. I've the technical documentation which describes the communication protocols and a working pascal program is also included for manipulating the machine. I copied the pascal code and tested it on Turbo Pascal, using DosBox, for windows 7 64 bit and the code compiles successfully. What I wanted to achieve now was to convert those pascal codes to C#.Net but I was having a hard time when converting few lines to C# as I don't have much experience on serial port programming.
This was the code in Pascal to Initialize communication with the machine. (Set baudrate to 9600, 8 bits, no parity, 1 stop bit)
The corresponding C# for the above code I came up was; (Please correct me if I get it wrong)
But I couldn't understand how to convert the rest of the pascal procedures. Some of these procedures i had difficulty with are;
Could you guys please help me how to convert those pascal codes to the equivalent C#? I know I can write to a port using the 'port.Write' Method but that couldn't exactly fit the turbo pascal code with the port array.(e.g
port[RXTX + 3] := $80;
) I don't know what the port array index 'RXTX+3' is referring relating to C#. I would really appreciate it if you could give me a hand on this and I hope I'll learn to convert the rest of the pascal codes myself. :)
I have written the following equivalent C# code for the pascal program using the help I got from the good people here. Please correct me if i have made a mistake in my code.
By the way here is the protocol described in the device documentation.
![Serial port 3f8 irq4 Serial port 3f8 irq4](/uploads/1/2/4/7/124737728/271539052.png)
And moreover i've here provided the rest of the code with an example of a command send to count the number of coins.
To send a command to count coins;
The protocol for reading count register is;
Counter strike source models and textures download for gmod 13 1. Hope this helps, ~Jarrrk. I don't think it's anything with DarkRP, I've done a complete re-install over the weekend with the new Gmod 13 and installed DarkRP as the primary gamemode.
Eliyah
Serial Port 3f8 Irq4
EliyahEliyah
2 Answers
What's being done here is direct, PC hardware port (specifically COM1) access. For those curious what's going on, base port+5 is the line status register of a 8250 UART and its pincompatible successors like the 16450 and 16550. See here for more details concerning the inner workings of classic PC style serial ports.
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Not sure if you'll even ever get this to work properly on Windows (and one thing is certain, it will never ever work with eg serial port dongles that are attached via USB), it's DOS code that partially relies on being quite close to the hardware, have perfect control over timing (DOS was single tasking) and perfectly knowing what hardware to expect. In most cases it should be possible to rely on the facilities that Windows (and in your case, the .Net framework) offer - The stuff you show above is for sending bytes (you can use the Write method for that). The checksum part should be quite trivial to reproduce.
.Net offers an API SerialPort, it should be possible to use that API and do away with this remnant of 'good' old DOS days.
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Ugh. 8250 UART registers are documented here. Directly accessing the UART registers in Windows is not supported. Your SerialPort initialization is correct. Beware that it is fairly unlikely your machine has a COM1 port unless you have real hardware. USB emulators tend to pick higher port numbers. Use SerialPort.GetPortNames() to have a look-see.
Tx() waits for transmitter empty status bit. Simply replace with SerialPort.Write() to write one byte, it already blocks if the transmit buffer is full. It won't be.
RxWait() waits for the receiver ready status bit. Simply replace with SerialPort.ReadByte().
Tx2() is just a helper procedure to keep a simple checksum updated, just add the byte you send to a checksum variable.
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