Serial Connection To Usb Adapter

Serial Connection To Usb Adapter Rating: 6,0/10 3275 reviews

Corel paintshop pro x9 crack & serial key download. The Necessity of an Adapter. With the widespread adoption of USB, most computers sold now do not have an RS-232 port. Therefore, to connect an RS-232 device (such as a CR1000) to a computer, you need to use a USB to RS-232 adapter, such as the 17394 converter. While USB to RS-232 adapters perform a necessary function, they do have some limitations. Released in April of 2000, Universal Serial Bus (USB) 2.0 cables quickly became a standard in powering a wide range of USB devices. While newer USB versions are available - USB 3.1 is one of the newest versions of this type of cable and offers blazing-fast 10 Gbps transfer speeds - there are still plenty of situations where you need high-quality USB 2.0 cables. The Architecture of a USB to serial adapter The design and selection of components of a USB to serial adapter is what determines failure or successful data transfer. Most USB to serial converters has built-in ADDC (Automatic Data Direction Control) so they automatically can control the data flow direction, which makes handshaking obsolete, however this only applies to the RS485 protocol, not RS232.

Other things to consider would be compatibility with Windows 10. The manufacturer (FTDI) of the processor chips for our USB to Serial adapter 'Ultimate', 'PRO' and 'Thunderlinx' versions have validated that the drivers are fully compatible with the Consumer Preview, Developer Preview versions and officially released consumer versions of Windows 10.

This is great news since you now won't have to spend money on a new USB to serial adapter once you decide to upgrade to Windows 10.

Convert Serial To Usb Connections

Things to avoid:

  • Avoid adapters with a low-cost processor chip such as Prolific or WCH (WinChipHead). The drivers are poorly written, incompatible with newer operating systems and creates unreliable communication.
  • Avoid adapters with a low output power (less than 5VDC). Low output power makes the communication unreliable or even impossible.

The Architecture of a USB to serial adapter

The design and selection of components of a USB to serial adapter is what determines failure or successful data transfer. Most USB to serial converters has built-in ADDC (Automatic Data Direction Control) so they automatically can control the data flow direction, which makes handshaking obsolete, however this only applies to the RS485 protocol, not RS232.

Adapter

Below is a simplified schematic of a typical well designed circuitry.


At a block level a USB to serial adapter consists of a USB serial processor chip, a serial driver chip and if the adapter is isolated there will be optocouplers in front of the USB and / or serial ports. The above design consists of a FT2232 USB serial processor from FTDI, which is a dual serial port processor. This processor is combined with a SP213 high-speed RS232 transciever from Exar which makes the overall performance of the adapter solid and reliable.

Further reading:
Further reading: Why most USB to Serial adapters does not work with Windows 7
Windows 8: USB to serial adapter ready for Windows 8
Overview of all USB to Serial RS232 adapters.
Small form factor adapter: Mini USB to serial adapter
For further information regarding serial data communication, questions or suggestions please contact us.

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An ExpertGPS user asks:
I have an older GPS that uses a serial cable, but my new laptop only has USB ports. How can I connect my GPS to my computer?


If you have an older GPS receiver with a serial cable interface, and a newer Windows desktop or laptop computer that only has USB ports, you will need to use a USB to Serial Adapter to connect your GPS to ExpertGPS. A USB to Serial Adapter is a small piece of hardware, usually just an inline cable, with a USB plug on one end, and a 9-pin serial plug on the other. The USB to Serial Adapter that I use, the U209-000-R from TrippLite, is shown below. Many companies sell identical products - I have a feeling they all come from the same overseas source and differ only in the model name sticker and the name on the little CD driver that comes with the package.

The first thing you need to do is to install the driver software that comes with the USB to Serial Adapter. If you don't have the driver, you can go to the manufacturer's Web site to download and install it. Without the driver software, the cable won't do anything. Here's a picture of a successful driver install. Very Important: Notice that the driver has assigned COM4 to the USB to Serial Adapter!!!

Once the driver is installed successfully, you can plug the USB to Serial Adapter into your USB port, and Windows should display a pop-up message saying that a new Plug and Play device was found and recognized. If this doesn't happen, you need to address this problem before proceeding. Contact tech support at the USB to Serial Adapter's manufacturer (not me) for assistance.

Now connect your GPS receiver to the adapter and turn on the GPS. Don't launch ExpertGPS until the GPS is connected to the adapter, and the adapter is connected to your computer.

Waypoint, route, and track transfer

If you have a Garmin, Magellan, Lowrance, or Eagle GPS and want to transfer waypoints, routes, or tracks, run ExpertGPS, and click Preferences on the Edit menu. Click My GPS Receivers, click Add, and select your GPS from the list. When asked for the COM port, select the same COM number that Windows assigned to your USB to Serial Adapter when you installed the driver.

Real-time tracking on a laptop

To track your location in real-time while outdoors with a laptop, run ExpertGPS, and click Preferences on the Edit menu. Click Tracking, and select NMEA as the Protocol. When asked for the COM port, select the same COM number that Windows assigned to your USB to Serial Adapter when you installed the driver.

Serial Connection To Usb Adapter Download

Click Enable Tracking on the Tracking menu, and ExpertGPS will begin listening to the NMEA data being sent from your GPS receiver, and updating your position on the map every second or two.