Question about Intel HP Compaq NC6220 Notebook

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Com1 stops and starts

My com1 rs232 port disconnects from devices mid way through transfers etc. i have a pc card converter that appears to work ok. This is the second nc6220 i've had with the same problem, although there are 2 others here that work ok. the first pc that didn't work had the motherboard replaced and c drive formatted but that didn't help. Any help would be appreciated. there are no other irq's sharing the number. Thanks kazafog

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Just a suggestion: Check the command set for the transmission device. Compare the known good set with the problem device. Set them to be identical. If you are using PC CARD adapters, check their settings. If you are using an external modem, check the AT commandset : http://www.computerhope.com/atcom.htm I don't think it's the Laptop Chipset. Also check BIOS.

Posted on May 18, 2007

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Posted on Jan 02, 2017

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Communication port is not working properly


COM1 and COM2 refer to a computer's communications, or serial, ports. COM1 ports are often used on older PCs to connect network devices, digital cameras and mice. Faulty drivers software that enables the hardware to communicate with the operating system or incorrect hardware configuration can influence COM1 behavior. In rare cases, the expansion card that adds the serial ports to the PC can fail, rendering both COM1 and COM2 ports useless. To repair a COM1 port, you must determine what is preventing the port from working before attempting a solution.

Click "Start." Go to "Control Panel" and then click "Hardware & Sound." Select "Device Manager" from the submenu. Expand "Ports (COM & LPT)." Double-click "COM1." Review Device Status on the General tab to check for problems with the software driver. If the message "The Device Is Working Properly" appears, click "OK" to close the window; otherwise, look up the error message on Microsoft Support. Follow the directions in the Knowledge Base to correct the issue. Press "Alt" and "V" to open View. Scroll to "Resources by Type." Press "Enter." Double-click "Interrupt Request (IRQ)" to see a list of devices. Double-click "Communications Port (COM1)." Check the term to the left of COM1 to see if the card uses an ISA or PCI interface. If the card uses a PCI interface, it can use the same IRQ as another PCI device without producing a hardware conflict. If the device is ISA, it needs its own IRQ. Go to the "Resources" tab. If "No Conflicts" appears in the Conflicting Device List, close the window; otherwise, uncheck "Use Automatic Settings." Click the drop-down menu and select each configuration until the port no longer interferes with another device. If conflicts occur with each configuration, double-click "IRQ"; you may need to try different configurations before Windows gives you permission to edit the interrupt request. Click the up or down arrow to change the IRQ until the message "No Devices Are Conflicting" appears in the Conflict Information field. Click "OK" to close each window. Click "Yes" when prompted. Connect a device to the COM1 port to test the port. If the device doesn't respond, shut down the computer and then unplug the power cable. Disconnect all devices from the back of the PC. Remove the case cover and touch the computer's chassis. Set the computer on its side so that the PCI and ISA cards sit at a 90-degree angle to the floor. Find the serial ports on the back of the PC. Look on the opposite side of the case to find the associated card. Shine a flashlight onto the card and make sure that the copper contacts are not visible. If you can see the contacts, reseat the card in its slot so that it's fully installed to the motherboard. Reassemble the case and boot into Windows to test the COM1 port. If the port still fails to work, you may need to replace the serial port card.

Jan 16, 2013 | Computers & Internet

1 Answer

How to connect ddx3216 to pc


You need to either connect it using a MIDI interface card and cables from the PC or you can use a RS232 serial cable which may be hard to find for your PC. It appears to use the 7 wire RS232 type connector at the mixer board end. You can get USB to MIDI converter devices from several sources.

Aug 12, 2011 | Behringer XENYX 2442FX Mixer

1 Answer

I'm trying to figure out how to connect my Datamax Prodigy Plus Thermal printer to my PC. I have a 25 pin connector on the Printer labeled J2. Also a round plug-in labeled J4. My computer has the same...


If the cable works on the Zebra it should work on the Datamax. It must be a RS232 serial null modem cable.Check the serial port settings and make sure the printer setting match the PC serial port settings. Baud Rate=________? Data Bits=________? Parity=_______?Stop Bits=________? Handshaking=____________?

The typical settings are Baud 9600,8,n,1 Xon/Xoff.
Also make sure of the comm port being used. com1,com2......etc

Jun 09, 2011 | Datamax Prodigy Plus Thermal Printer

1 Answer

Lantronix UDS1100 what are the pin connection to emulate com1 on a PC


Please see the link here below for the complete manual.
http://www.lantronix.com/pdf/UDS1100_UG.pdf

If you go to page 70 you will see the complete pin layout for RS232, if you need to connect it to a PC with a 9 pin RS232 port you can see the equivalent on page 72.

Please let me know if you need more details.

Mar 15, 2011 | Lantronix UDS1100 (UD110000201)

1 Answer

I have the same printer, and xp on my pc, but how do i connect them? my laptop does not have a serial conection. i tried to use a usb/serial converter and i installed the xp driver from minolta website,...


You need to make sure you have selected the correct COM port whin you try to print. Depending on the type of USB to serial converter, the COM port it assigns can change just by moving it to another USB port. Right-click on My Computer and select MANAGE. Select Device Manager from the list. Click on the (+) next to PORTS and double-click on your USB-SERIAL device COM port. Somewhere in the Properties window you should be able to see the assigned COM port (COM1, COM2, etc.). If possible, set the COM port to COM1 or COM2 for greatest compatibility with older software. Then when you print, make sure your printer driver is also set to the same COM port.

Mar 05, 2011 | Office Equipment & Supplies

1 Answer

Hi I'm Kandy When I try and load a card stitch I keep getting the following error message: PCDWIN22 Caused a General Protection Fault in Module PCD_WIN.EXE at 0005:38F6. The software then shuts down. I...


I replaced my USB/Serial RS232 port adapter with a genuine RS232 serial port on the PC. THis solved the problem. Further reasearch on the net indicated that USB to RS232 - serial port converters do often have problems. I previously had not had a problem running on Windows XP and this is what alerted me to the possibility of the USB/RS232 port adapter as a possible reason for the "new" problem.

Oct 24, 2009 | PfaFF Creative 7570

8 Answers

Need drivers for nikkai usb to serial converter rs232


I purchased the Nikkai USB to RS232 adapter from Maplin and could not get the device working. (Maplin staff not much help!) The lead uses the Prolific PL-2303 device but Prolific do not supply the drivers to end users.
However I found the drivers that appear to work at:

http://www.cooldrives.com/wividrforprc.html

This then recognises the lead as a COM port. So far everything seems to work OK.
(Null modem check and basic 9600 data transfer.)

I hope that helps everybody.

Dec 08, 2008 | Computers & Internet

1 Answer

Fail to configure metrologic usb barcode scanner to use virtual RS232 port interface


First check the com port speed of computer port which you connected scanner .Com port speed should be 9600.
To change com port speed in computer go to computer/properties/device manager.
Select the ports eg com1 .Right click communication port go to properties and select port settings Bits per second should be 9600.
Serial scanner can not be test in word or note pad.you can download the RS232 software from below link and test the scanner
http://www.lookrs232.com/

Oct 30, 2008 | Metrologic Instruments MK9540...

1 Answer

Zebra Z4MPlus doesnt communicate with PC


Ok,

This machine has a parallel port. Try to print via parallel cable. If it works, consider staying with it. Serial ports are a pain to manage.
If you absolutely have to do it via rs232 though....
Question 1. Has it ever printed?
If yes, Go into Windows Printers and Faxes control and select the Zebra or whatever printer that you are using. Right click on it and you should get a menu that at the bottom say "Properties", select that, then you should get a new window with tabs at the top. You want the tab for "Ports". Select it and you will see all of the different output ports that you can direct your printing. RS232 is a COM port. So start at COM1, check it and try to print. If that doesn't work, go to COM2, etc.

Last resort, If you can't get control via the printer driver program, you will have to try redirecting the print manually (now you will understand why I said to stay with parallel output).
What you have to do is redirect your printing via the dos "mode" command.
Under "Start Menu" goto "Run" and put in "CMD" and click "OK".

This opens a black square window with a cursor blinking. Type in this:
mode com1:9600,n,8,1 (enter)

mode lpt2=com1 (enter)

Tell your program to use LPT2 if you can and see if it works.
By now a parallel cable instead of RS232 should be looking really good.
Good luck!

Mar 12, 2008 | Zebra Z4Mplus Label Printer

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