1
vote
1answer
73 views

Can COM ports be used as RS232 serial ports?

Appologies if I am misusing/abusing specifications. Question: Is it possible to send serial signals via the PC's COM port? Is it further possible to split this port somehow and send signals to two ...
0
votes
1answer
24 views

how to skip Hyperterminal splash page (spinning globe)

Is there a secret trick to skipping the 5 second animated splash screen when Hilgraeve HYPERTERMINAL starts? When I open HyperTerminal (HyperTrm.exe), I want it to open immediately, and not show me ...
1
vote
1answer
125 views

Connect a VFD display RS232 serial port

I need to connect a VSF display to a computer. The VSF datasheet has this pin out specifications (http://www.noritake-itron.com/Specs/CUK/CU2x20029SCPB-KV91B-04.pdf) DIN-Receive EIN-Host Busy ...
1
vote
2answers
907 views

Is DB-25 port Serial or Parallel?

I would like to know whether the DB-25 port is a serial or parallel port. These ports are otherwise known as printer ports, aka LPT port. I'm very confused about this since, according to Wikipedia, ...
0
votes
1answer
91 views

Serial cable vs USB-to-serial adapter

I have a device with RS-232 and a control program on PC. It works fine via serial cable but with usb-to-serial some functions don't work correctly. Why usb-to-serial doesn't work? I tried to change ...
4
votes
1answer
2k views

USB-to-Serial showing gibberish at 115200 Baud

I've got a serious problem which drives me crazy because I tried everything I could think of. First of all, I made a video: http://youtu.be/boghkuq7L_s but please read the following text for more ...
0
votes
3answers
2k views

What is the minimum delay between two consecutive RS232 frames?

I have been working on creating a UART on an FPGA. I can successfully transmit and receive single characters typed on PuTTY. However, when I set my FPGA to constantly write a large sequences of "A", ...
0
votes
1answer
396 views

interface an lcd through rs232 interface

Linux has character device file representing serial port /dev/ttys*. I can simply open , read , write , close a serial port using system calls in my c program. I am working on a board which has an ...
2
votes
1answer
1k views

interpreting stty output to start connection with hyperterminal

I am trying to communicate between an embedded device which runs linux and a PC which runs windows xp over a RS232 connection. On windows I use Hyperterminal, but I don't know which settings I should ...
1
vote
2answers
592 views

Do I fry my device when attaching a 5V RS232 converter to a 3.3V port?

I have a device, namely a Synology DiskStation. It has a 3.3V RS232 interface on board. All I have is a 5V RS232 to USB adapter. Can I attach it to my DiskStation without making any smoke?
3
votes
2answers
1k views

I'm looking for serial port monitoring software

I need a serial port monitoring software that works on windows 7 64bit or GNU/Linux and supports at least RS-232. Bonus points are if it's free software or at least freeware. I just need to be able to ...
1
vote
1answer
437 views

Turning on computer using communication port

I am working on something that would require a computer to be turned on "remotely" but still within reach in the same building. I did some reading about WOL (Wake On LAN) and would like to know if ...
4
votes
4answers
261 views

Looking for Fast RS-232 or RS-485 Interface Cards for Windows

I have a module that is usually bundled with a master module, which we now want to use unbundled. The module uses an RS-485 interface. The problem is, by default, the module runs at 1.25 Megabaud, ...
1
vote
2answers
721 views

Serial port RS-232 and Security

If I have a device connected to serial port RS-232 on my computer and an application that is communicating with it. How secure is this? Can another application communicate with the device at the same ...
0
votes
6answers
3k views

Multi serial devices on one port

I am developing one software for managing parking lot. System is designed to use four HID RFID devices for authorization clients on gates. Each device should be connected to server by Serial port ...
7
votes
2answers
4k views

How can I login to Ubuntu using a USB serial port?

How can enable remote terminal login into Ubuntu 9.10 using a USB serial port? I created device /dev/ttyUSB0 and i want to allow logins using Hyper-Terminal. I found some resources but they are ...
6
votes
6answers
4k views

Laptop with internal serial port in 2009 (and 2010) [closed]

Are there any computer vendors (like Dell, Lenovo, or..) that still sell laptops with an internal serial port? We are using several modem and other kind of box at work that have to be used (and/or ...
1
vote
1answer
391 views

How do I get Snow Leopard to recognize an old RS-232 UPS?

Instead of blowing $100+ on a brand new UPS, I decided to try to resuscitate the ancient CPS350SL that got me through college and grad school. One $7 sealed lead-acid battery later and it's back in ...