Problems with firmware of receivers. Visibility of COM port. Wikoristannya laptop
Most “old” computers and laptops that were added over 5 years ago always had a handful of COM ports (RS-232). I would like to hire one RS-232 connector first.
Small 1. Socket on the computer case
Previously, various external installations were connected: mice, printers, modems, specialized installations. There were no problems connecting the receiver to the computer for firmware. It was enough to just connect, run the program to update the receiver’s software, and calmly do everything you need.
Today's computers often have RS-232 connectors. This is where problems arise, often even unacceptable ones. Most receivers do not have any other firmware methods other than the RS-232 connection. І "USB" input for connecting an external flash drive is not available on all receivers.
And another problem: the laptop connects to the “COM” port, and it works with receivers of one model, but not with others. This means that the laptop's transmitter violates the RS-232 transmission standard. At this point, go with the method of saving energy and charging rechargeable battery. If the receiver's generator is technically accurate and precise, then a special microcircuit for the “COM” port will be installed in the receiver. This receiver's microchips can be used with both a laptop and a computer. If the microcircuits are installed, the virus will have a greater impact, and the rest of the time, the generators will be able to guide you on these devices! This is the reason for the problem of the insanity of laptops and most receivers.
If the computer is disabled, the problem of the lack of necessary RS-232 ports can be solved simply: you need to add an additional module with COM ports. This board, which is installed in the computer, is called PIC-COM or simply “COM ports board”.
Small 2. PCI card for a computer with two “COM” ports
If you are not strong in computers and have never been able to handle installing additional equipment into your computer before, you will become a fool! Otherwise, you can “kill” the road of ownership.
After installing the payment into the computer, the operating system "Windows" - "OS" gives the new installed ports a number, for example, "1", "2" ... "25".
If the laptop is defective, the primary card cannot be installed in the computer: the standard and size are wrong. There are two ways to solve this problem: expensive, but clearly, and cheap, but not at all crazy. For the first generation, you need to get a special card with ports for your laptop. The price for this payment is high, and there is an additional fee, as a result of the agreement, this payment was not given to me
Small 3. Laptop board with COM port
And here’s the trick: “old” and “new” laptops have two different standards for advanced ownership! Before going to the bathroom, please read the instructions on your laptop!
If you couldn’t add a fee to your computer or laptop, you will lose one output: “USB”. Almost all current computer models have a “USB” output, at least two, or even all of them! We sell a variety of USB-COM conversions.
Small 4. Convert “USB – COM”
Small 5. Scheme of conversion "USB - COM"
How to solder a USB-COM adapter yourself. Option 1
How to create your own USB-COM adapter, which can be used to connect converters and other devices to computers that do not have a “lead” COM port.
Respect!
The adapter, described below, provides support for only RX and TX signals.
All other modem signals are not affected.
Most devices operate without hardware flow treatment, which is much less sufficient.
With Pilot VAF/MAF converters, the adapter works 100%
Let's go!
For folding you will need the following parts:
1. PL2303HX (USB-USART location from Prolific) - 1 pc.
2. MAX232CSE (UART-RS232) - 1 pc.
3. Quartz 12.00 MHz - 1 piece.
4. Capacitors 10 nF (smd1206) - 2 pcs.
5. Capacitors 1 uF (smd1206) - 6 pcs.
6. Resistors 27 Ohm (smd1206) - 2 pcs.
7. Resistors 1.5KOhm (smd1206) - 1 pc.
8. Mini-USB port - 1 pc.
9. Roz'em DB-9 tato – 1 pc.
10. Foil textolite for plate 48*22mm – 1 piece
Adapter diagram
Drukovana fee
Files of schemes and seals in format Eagle PCB Editor you can get attracted for something you can do
Folding and adjustment
Here everything is simpler - we need to remove the board, firmly open it and remember all the details.
As a result, you will have to leave the following adapter:
The board, so that it does not oxidize, can be blown out with polyurethane varnish or any kind of liquid-drying car varnish, which is right at hand.
This device is then connected to the port USB computer.
Windows show a new device and ask for drivers
Let's go to the prolifeka website and download it yourself I'll keep the version firewood
At the time of writing this article, the most the remaining driver bv axis cey.
After the Windows driver has been installed, a new Prolific COM port may appear in the system: 
Now it is necessary to check the usefulness of the adapter
For which, on the adapter in the COM port, contacts 2 and 3 are connected to each other by twisting or using a dart (on the connector itself, check the printed digits with the contact numbers - you will be surprised) As an option, you can solder the time switch Michku:
Next, launch the “Hyperterminal” program (Start->Programs->Standards->Connection->Hyperterminal)
On the news, there is no hyperterminal! He will have to go to Google/Yandex and download hyperterminal or whatever it is.
We select our new com port in the connection settings:
Now we launch the connection, select the English layout and try to work with each other.
The following key symbols will appear on the screen:
If the writers do not show up, check the installation
Axle, master, and that’s it!
Now you can no longer remove the jumper from contacts 2-3 and you can quickly use the adapter for direct reasons.
Tobto. The input of such a converter is connected to the external USB socket of the laptop, the driver (control program) is installed from the included disk, and system adjustments appears as a virtual COM port with a serial number.
How to solder a USB-COM adapter yourself. Option 2
| Malyunok 1.Zagalny Viglyad |
 |
The presentation block in the selected form allows you to implement the principle: purchasing - connecting. The device allows users of personal computers to connect to the USB port of the device, which operates as a COM port (RS232C).
Oriented separate price: 540 rub.
The adapter will be brown for practical additions: for connecting to a personal computer various outbuildings, as well as modems and programmers.
Technical characteristics
Voltage to USB port: 5 tbsp.
Strum supply: 20 mA.
RS232C connection speed: 110-230000 bit/s
Interface: USB1.1, USB2.0.
Operating systems supported: Win98, Win2000, WinXP, Vista, Linux, etc.
Overall dimensions: 60x30 mm.
Scope of delivery
Adapter block at assembly: 1.
Instructions: 1.
Construction
Structurally, the adapter is on a double-sided laminated board made of foil fiberglass, protected by a clear heat-sinking tube.
The adapter will provide all modem signals: DSR, DTR, RTS, CTS, RI, DCD, and the main signals RXD and TXD.
Malyunok 2. Electrical circuit diagram
.gif)
Malyunok 3. View of the framed plate from the side of the details
Description of the robot block
Principova electrical diagram pointed at pic 2.
The central part of the attachment is a CP2102 microcontroller from SILICON LABORATORIES. The MAX3243 driver chip was redesigned by Texas Instruments. The adapter will provide all modem signals: DSR, DTR, RTS, CTS, RI, DCD, and the main signals RXD and TXD.
I will install it in the OSTo install drivers for your computer, first install the appropriate driver for your operating system.
Next, install the driver on your personal computer. Connect the adapter. Operating system Find and “ask” for the driver by selecting the place where you unpacked the driver (the place where you unpacked it).
After successful installation, the LED on the adapter will light up, signaling the readiness of the device for operation!
NEW Updated driver dated January 25, 2011
1. Driver for Win Vista You can download it
2. Driver for Windows 2000/XP/Server 2003/Vista (v5.0) You can download
3. Driver for Linux You can download
4. Driver for Win98SE You can download it
5. Driver for OS Mac You can download it
6. an144sw.zip- For additional purposes, you can change the ID code of the USB-COM adapter. This is necessary in order to eliminate the ability to run a computer 8050 on one PC. Vikorystuvati only to the confirmed koristuvachs! You can enchant
VERIFICATION OF BM8050 ROBOTICITY WITHOUT EXTERNAL OWNERSHIP
To check the transmission and reception of all necessary modem signals, connect the COM device.
Install jumpers on contacts 2-3, 4-6, 7-8 COM connector VM8050.
Connect the device to the USB port of the computer.
Wonder what port the OS saw for the device, why leave --- Customization ---Panel Management --- System ---Obladnannya --- Dispatcher outbuildings --- Porti(COM and LPT) --- Silicon Labs CP210x USB to UART Bridge (COM1).
Launch standard supplement HiperTerminal for Windows from Start ---Program ---Standard --- Zv'yazok--- HiperTerminal.
Shupin the running connection, if it is more active, why press the beast Viklik --- Zupinity.
Wonder which port is used by the program to communicate with the device, for which you need to leave the left-handed file File --- Power And in the “Connect via” option, select the same port as in the Device Manager (in our category, COM1).
In this window, go to the window where you have selected the "Hardware" flow in the program, to do this, press the button in the center "Adjust" and in the lower "Hardware" window, select "Hardware".
Exit setting up programs by clicking OK, OK again.
Add the text “Text” to HiperTerminal, which will display the text “Text” on the screen, which confirms the device’s validity.
Remove jumpers from contacts 2-3, 4-6, 7-8 to the COM connector VM8050.
Create the text “Text” in the HiperTerminal program, which will show the device on the screen, which confirms the correctness of the device.
Setting up the driver and selecting the port for the USB-COM adapter
Here we are faced with the first problems: first, the OS could have assigned the virtual port in advance great number for example, “25”. And the program for “firmware” of the receiver allows you to work with port numbers from one to four. Otherwise, not all USB-COM converters can work with the firmware program and the receiver itself. The reason is that the producers of the land prepared their own versions and programs in different ways before them. It is necessary to check all changes individually for your program and your receiver. It often happens that people work with one possession, but not with others.
Since the first problem is caused by changing the port number in the OS settings, the problem of ownership, software and modification cannot be solved.
To change the assigned OS number, you must change it manually. To do this, you need to go to “Device Manager”: “Start” - “Settings” - “Control Panel” - “System”.
Small 15.6. "Control panel"
In the window, select the “Accessories” tab and click on the “Device Manager” button. The Device Manager window opens. From the window that appears in the tree-like list, select the row “Port (COM and LPT). In the list you will see all the ports that your computer has. Select your virtual port: change “USB - COM”. I have redesigned the Prolific model.
Small 15.7. List of available ports
Click on this row with the RIGHT mouse button and select the “Powerfulness” alert from the window.
Small 15.8. Adjusting the vibrator port
In the window, select the “Port Settings” tab. In the "Swidness" row, select "115200", then click on the "Additional" button.
Small 15.9. Setting up port parameters
At the bottom of the window you will find the “COM port number” tab.
Small 16. Changing the COM port number
Click on the tab and select the required COM port number.
Please note that certain port numbers may be assigned to an existing modem, for example. Vikoristovuvati overnight one port is not possible!
After completing the setup, click “OK” to save your changes and exit the setup mode again, closing the window previously. After this, reboot your computer to make the necessary changes. If you changed the number of the COM port of the USB - COM port, then you just need to unplug it from the computer and reconnect it.
Solutions for USB-COM adapters for printers are ready.
Adapter cable COM 9/25M -> USB AM 1m
Price - 300 rub.
Description Cable for connecting devices with a serial interface (RS-232) to a USB port.
Separate cable or adapter COM25M, COM9M, USB A
Crazyness
The power of USB 1.1/2.0
Support Windows 2000, Windows XP
Otherwise
Cable extension 1 meter
Logistics
Packaging dimensions (dimensions in NICS) 21.5 x 14.5 x 4.1 cm
Gross weight (supplied from NIXi) 0.136 kg
TRENDnet adapter cable 
Price - 500 rub.
Main
Virobnik TRENDnet
Model TU-S9
Equipment type Adapter cable
Diameter 28/24 AWG
Productivity options
Transmission speed 500 Kbps
Life via USB port
Energy consumption 500 mA – maximum
Crazyness
Vimogi up to system RAM 64 MB
Support Windows ME, Windows 2000, Windows XP
Otherwise
RoHS Compliant
Cable extension 0.6 meters
Vaga 75 grams
Operating temperature 0~40°C
Packaging dimensions (dimensions in NICS) 23 x 16.8 x 4.6 cm
Gross weight (supplied by NIXi) 0.135 kg
External information channels
Posted to the virobnik website www.trendnet.com
Adapter – USB-COM adapter (RS-232)
Price - 1500 rub.
The adapter is used for the installation of adapters and adapters for inclusion via the Com (RS232) port, for example, this is even relevant for modern computers that only carry USB, for which you can use an additional adapter. daily computers And laptops come with our devices and adapters, such as BMW Scanner, Mercedes Scanner, Scanmatik, etc.
Installation for car services, auto diagnostics, diagnostic equipment, car diagnostics, car scanner, auto scanner, diagnostic post, chip tuning, equipment for auto diagnostics Carbrain, UNISCAN, ADP-504 .6, Automan, Opel scanner, BMW scanner, engine tester, gas analyzer, diagnostics engine, device panel diagnostics Transponder programmer, OBD-2, OBD2, odometer adjustment, U-581, engine starting, crash data, crash date, speedometer, tachometer.
If you want, you may need to quickly connect with a null modem cable (2-3, 3-2, 5-5) and an adapter like -
Add to the adapter USB subjugator All you need is a straight null modem cable.
- Rozdribna vartіst 100r.
- Type A-A
- Dovzhina: 1.5 m
Ale is required to resolve the matter " inversions" null modem cable.
- Discount price 155.00 rub.
- Plug type: DB9 F - DB9 F
- Dovzhina: 1.8 m
or this adapter:
STLab U-350 (RTL) Adapter COM 9M -> USB AM
Price - 350 rub.
Main
Virobnik St-Lab
Model USB DONGLE SERIAL 1 PORT
Description The adapter allows you to connect a device with an RS-232 interface (for example, a modem) up to USB port computer.
Equipment type Adapter cable
Separate cable or adapter COM9M, USB A
Use USB connector So
Productivity options
Transmission speed 115200 bit/sec
USB interface 1.1
Life via USB port
Support Windows 2000, Windows ME, Windows XP, Windows Vista, Windows 2003 Server
Package dimensions (dimensions in NICS) 17 x 13 x 3.2 cm
Gross weight (supplied from NIXi) 0.077 kg
External information messages sent to the publisher's website
Problems with firmware of receivers. Visibility of COM port. Wikoristannya laptop
Most “old” computers and laptops that were added over 5 years ago always had a handful of COM ports (RS-232). I would like to hire one RS-232 connector first.
Small 1. Socket on the computer case
Previously, various external installations were connected: mice, printers, modems, specialized installations. There were no problems connecting the receiver to the computer for firmware. It was enough to just connect, run the program to update the receiver’s software, and calmly do everything you need.
Today's computers often have RS-232 connectors. This is where problems arise, often even unacceptable ones. Most receivers do not have any other firmware methods other than the RS-232 connection. І "USB" input for connecting an external flash drive is not available on all receivers.
And another problem: the laptop connects to the “COM” port, and it works with receivers of one model, but not with others. This means that the laptop's transmitter violates the RS-232 transmission standard. The main thing to do is to save energy and charge the battery. If the receiver’s generator is technically accurate and accurate, then a special microcircuit for the “COM” port will be installed in the receiver. This receiver's microchips can be used with both a laptop and a computer. If the microcircuits are installed, the virus will be more dangerous, and the rest of the time the generators will be able to work on these devices! This is the reason for the problem of the absurdity of laptops and most receivers.
If the computer is disabled, the problem of the lack of necessary RS-232 ports can be solved simply: you need to add an additional module with COM ports. This board, which is installed in the computer, is called PIC-COM or simply “COM ports board”.
Small 2. PCI card for a computer with two “COM” ports
If you are not strong in computers and have never been able to handle installing additional equipment into your computer before, you will become a fool! Otherwise, you can “kill” the road of ownership.
After installing the payment into the computer, the operating system "Windows" - "OS" gives the new installed ports a number, for example, "1", "2" ... "25".
If the laptop is defective, the primary card cannot be installed in the computer: the standard and size are wrong. There are two ways to solve this problem: expensive, but clearly, and cheap, but not at all crazy. For the first generation, you need to get a special card with ports for your laptop. The price for this payment is high, and there is an additional fee, as a result of the agreement, this payment was not given to me
Small 3. Laptop board with COM port
And here’s the trick: “old” and “new” laptops have two different standards for advanced ownership! Before going to the bathroom, please read the instructions on your laptop!
If you couldn’t add a fee to your computer or laptop, you will lose one output: “USB”. Almost all current computer models have a “USB” output, at least two, or even all of them! We sell a variety of USB-COM conversions.
Small 4. Convert “USB – COM”
Small 5. Scheme of conversion "USB - COM"
How to solder a USB-COM adapter yourself. Option 1
How to create your own USB-COM adapter, which can be used to connect converters and other devices to computers that do not have a “lead” COM port.
Respect!
The adapter, described below, provides support for only RX and TX signals.
All other modem signals are not affected.
Most devices operate without hardware flow treatment, which is much less sufficient.
With Pilot VAF/MAF converters, the adapter works 100%
Let's go!
For folding you will need the following parts:
1. PL2303HX (USB-USART location from Prolific) - 1 pc.
2. MAX232CSE (UART-RS232) - 1 pc.
3. Quartz 12.00 MHz - 1 piece.
4. Capacitors 10 nF (smd1206) - 2 pcs.
5. Capacitors 1 uF (smd1206) - 6 pcs.
6. Resistors 27 Ohm (smd1206) - 2 pcs.
7. Resistors 1.5KOhm (smd1206) - 1 pc.
8. Mini-USB port - 1 pc.
9. Roz'em DB-9 tato – 1 pc.
10. Foil textolite for plate 48*22mm – 1 piece
Adapter diagram
Drukovana fee
Files of schemes and seals in format Eagle PCB Editor you can get attracted for something you can do
Folding and adjustment
Here everything is simpler - we need to remove the board, firmly open it and remember all the details.
As a result, you will have to leave the following adapter:
The board, so that it does not oxidize, can be blown out with polyurethane varnish or any kind of liquid-drying car varnish, which is right at hand.
Next, this accessory is connected to the USB port of the computer.
Windows show a new device and ask for drivers
Go to the Prolifeka website and download the remaining version of the firewood
At the time of writing this article, the remaining driver was the axis.
After the Windows driver has been installed, a new Prolific COM port may appear in the system:
Now it is necessary to check the usefulness of the adapter
For which, on the adapter in the COM port, contacts 2 and 3 are connected to each other by twisting or using a dart (on the connector itself, check the printed digits with the contact numbers - you will be surprised) As an option, you can solder the time switch Michku:
Next, launch the “Hyperterminal” program (Start->Programs->Standards->Connection->Hyperterminal)
On the news, there is no hyperterminal! He will have to go to Google/Yandex and download hyperterminal or whatever it is.
We select our new com port in the connection settings:
Now we launch the connection, select the English layout and try to work with each other.
The following key symbols will appear on the screen:
If the writers do not show up, check the installation
Axle, master, and that’s it!
Now you can no longer remove the jumper from contacts 2-3 and you can quickly use the adapter for direct reasons.
Tobto. The input of such a converter is connected to the external USB port of the laptop, the driver (control program) is installed from the included disk, and a virtual COM port with an assigned serial number appears in the system settings.
How to solder a USB-COM adapter yourself. Option 2
| Malyunok 1.Zagalny Viglyad |
|
The presentation block in the selected form allows you to implement the principle: purchasing - connecting. The device allows users of personal computers to connect to the USB port of the device, which operates as a COM port (RS232C).
Oriented separate price: 540 rub.
The adapter will be used for practical purposes: for connecting various devices, as well as modems and programmers, to a personal computer.
Technical characteristics
Voltage to USB port: 5 tbsp.
Strum supply: 20 mA.
RS232C connection speed: 110-230000 bit/s
Interface: USB1.1, USB2.0.
Operating systems supported: Win98, Win2000, WinXP, Vista, Linux, etc.
Overall dimensions: 60x30 mm.
Scope of delivery
Adapter block at assembly: 1.
Instructions: 1.
Construction
Structurally, the adapter is on a double-sided laminated board made of foil fiberglass, protected by a clear heat-sinking tube.
The adapter will provide all modem signals: DSR, DTR, RTS, CTS, RI, DCD, and the main signals RXD and TXD.
Malyunok 2. Electrical circuit diagram
Malyunok 3. View of the framed plate from the side of the details
Description of the robot block
The principle electrical diagram is aimed at pic 2.
The central part of the attachment is a CP2102 microcontroller from SILICON LABORATORIES. The MAX3243 driver chip was redesigned by Texas Instruments. The adapter will provide all modem signals: DSR, DTR, RTS, CTS, RI, DCD, and the main signals RXD and TXD.
I will install it in the OSTo install drivers for your computer, first install the appropriate driver for your operating system.
Next, install the driver on your personal computer. Connect the adapter. The operating system will detect and “ask” for the driver by selecting the place where the driver was installed (the same place where it was unpacked).
After successful installation, the LED on the adapter will light up, signaling the readiness of the device for operation!
NEW Updated driver dated January 25, 2011
1. Driver for Win Vista You can download it
2. Driver for Windows 2000/XP/Server 2003/Vista (v5.0) You can download
3. Driver for Linux You can download
4. Driver for Win98SE You can download it
5. Driver for OS Mac You can download it
6. an144sw.zip- For additional purposes, you can change the ID code of the USB-COM adapter. This is necessary in order to eliminate the ability to run a computer 8050 on one PC. Vikoristovvat only to the confirmed koristuvachs! You can enchant
VERIFICATION OF BM8050 ROBOTICITY WITHOUT EXTERNAL OWNERSHIP
To check the transmission and reception of all necessary modem signals, connect the COM device.
Install jumpers on contacts 2-3, 4-6, 7-8 COM connector VM8050.
Connect the device to the USB port of the computer.
Marvel at what port the OS saw for the device, so go to Start --- Settings --- Control Panel --- System --- Equipment --- Device Manager --- Ports (COM and LPT) --- Silicon Labs CP210x USB to UART Bridge (COM1).
Launch the standard HiperTerminal program for Windows from Start --- Programs --- Standard --- Link --- HiperTerminal.
Shupin the running connection, if it is more active, why press the beast Viklik --- Zupinity.
Find out which port the program uses to communicate with the device, then go to File --- Powers and select the "Connect via" port, select the same port in the Device Manager (in our section COM1).
In this window, go to the window where you have selected the "Hardware" flow in the program, to do this, press the button in the center "Adjust" and in the lower "Hardware" window, select "Hardware".
Exit setting up programs by clicking OK, OK again.
Add the text “Text” to HiperTerminal, which will display the text “Text” on the screen, which confirms the device’s validity.
Remove jumpers from contacts 2-3, 4-6, 7-8 to the COM connector VM8050.
Create the text “Text” in the HiperTerminal program, which will show the device on the screen, which confirms the correctness of the device.
Setting up the driver and selecting the port for the USB-COM adapter
Here we are faced with the first problems: first, the OS could have assigned an overly large number to the virtual port, for example, “25”. And the program for “firmware” of the receiver allows you to work with port numbers from one to four. Otherwise, not all USB-COM converters can work with the firmware program and the receiver itself. The reason is that the producers of the land prepared their own versions and programs in different ways before them. It is necessary to check all changes individually for your program and your receiver. It often happens that people work with one possession, but not with others.
Since the first problem is caused by changing the port number in the OS settings, the problem of ownership, software and modification cannot be solved.
To change the assigned OS number, you must change it manually. To do this, you need to go to “Device Manager”: “Start” - “Settings” - “Control Panel” - “System”.
Small 15.6. "Control panel"
In the window, select the “Accessories” tab and click on the “Device Manager” button. The Device Manager window opens. From the window that appears in the tree-like list, select the row “Port (COM and LPT). In the list you will see all the ports that your computer has. Select your virtual port: change “USB - COM”. I have redesigned the Prolific model.
Small 15.7. List of available ports
Click on this row with the RIGHT mouse button and select the “Powerfulness” alert from the window.
Small 15.8. Adjusting the vibrator port
In the window, select the “Port Settings” tab. In the "Swidness" row, select "115200", then click on the "Additional" button.
Small 15.9. Setting up port parameters
At the bottom of the window you will find the “COM port number” tab.
Small 16. Changing the COM port number
Click on the tab and select the required COM port number.
Please note that certain port numbers may be assigned to an existing modem, for example. Vikoristovuvati overnight one port is not possible!
After completing the setup, click “OK” to save your changes and exit the setup mode again, closing the window previously. After this, reboot your computer to make the necessary changes. If you changed the number of the COM port of the USB - COM port, then you just need to unplug it from the computer and reconnect it.
Solutions for USB-COM adapters for printers are ready.
Adapter cable COM 9/25M -> USB AM 1m
Price - 300 rub.
Description Cable for connecting devices with a serial interface (RS-232) to a USB port.
Separate cable or adapter COM25M, COM9M, USB A
Crazyness
The power of USB 1.1/2.0
Support Windows 2000, Windows XP
Otherwise
Cable extension 1 meter
Logistics
Packaging dimensions (dimensions in NICS) 21.5 x 14.5 x 4.1 cm
Gross weight (supplied from NIXi) 0.136 kg
TRENDnet adapter cable
Price - 500 rub.
Main
Virobnik TRENDnet
Model TU-S9
Equipment type Adapter cable
Diameter 28/24 AWG
Productivity options
Transmission speed 500 Kbps
Life via USB port
Energy consumption 500 mA – maximum
Crazyness
Vimogi up to system RAM 64 MB
Support Windows ME, Windows 2000, Windows XP
Otherwise
RoHS Compliant
Cable extension 0.6 meters
Vaga 75 grams
Operating temperature 0~40°C
Packaging dimensions (dimensions in NICS) 23 x 16.8 x 4.6 cm
Gross weight (supplied by NIXi) 0.135 kg
External information channels
Posted to the virobnik website www.trendnet.com
Adapter – USB-COM adapter (RS-232)
Price - 1500 rub.
The adapter is suitable for installing adapters and adapters for switching on via the Com (RS232) port, for example, this is even relevant for modern computers that only use USB, for which you can use the appropriate adapter computers and laptops with our devices and adapters, such as BMW Scanner, Mercedes Scanner, Scanmatik etc.
Installation for car services, auto diagnostics, diagnostic equipment, car diagnostics, car scanner, auto scanner, diagnostic post, chip tuning, equipment for auto diagnostics Carbrain, UNISCAN, ADP-504 .6, Automan, Opel scanner, BMW scanner, engine tester, gas analyzer, diagnostics engine, device panel diagnostics Transponder programmer, OBD-2, OBD2, odometer adjustment, U-581, engine starting, crash data, crash date, speedometer, tachometer.
If you want, you may need to quickly connect with a null modem cable (2-3, 3-2, 5-5) and an adapter like -
Add to the adapter USB subjugator All you need is a straight null modem cable.
- Rozdribna vartіst 100r.
- Type A-A
- Dovzhina: 1.5 m
Ale is required to resolve the matter " inversions" null modem cable.
- Discount price 155.00 rub.
- Plug type: DB9 F - DB9 F
- Dovzhina: 1.8 m
or this adapter:
STLab U-350 (RTL) Adapter COM 9M -> USB AM
Price - 350 rub.
Main
Virobnik St-Lab
Model USB DONGLE SERIAL 1 PORT
Description The adapter allows you to connect a device with an RS-232 interface (for example, a modem) to the USB port of a computer.
Equipment type Adapter cable
Separate cable or adapter COM9M, USB A
Use USB connector So
Productivity options
Transmission speed 115200 bit/sec
USB 1.1 interface
Life via USB port
Support Windows 2000, Windows ME, Windows XP, Windows Vista, Windows 2003 Server
Package dimensions (dimensions in NICS) 17 x 13 x 3.2 cm
Gross weight (supplied from NIXi) 0.077 kg
External information messages sent to the publisher's website
Do-it-yourself USB - COM (RS232) adapter - here's how to make a simple adapter in just one evening. This adapter, by the way, is combined with a CPU 166 P processor module. - A book that can be useful in amateur radio practice.
Axle what is needed for the adapter:
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Positionally not assigned |
Name |
Analog/replacement |
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Ceramic capacitor - 0.1 μFx50V |
SMD size 0805 |
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Ceramic capacitor - 33pFx50V |
SMD size 0805 |
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Chip MAX232 |
ADM232 SOIC16 package |
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LED indicators with a diameter of 3 mm. |
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Ready-made module - USB-COM adapter (TTL equivalent) on FT232 microcircuits |
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Resistor 0.125W 270 Ohm |
SMD size 0805 |
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Resistor 0.125W 510 Ohm |
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Resistor 0.125W 100 Ohm |
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DB9 plug tato |
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Toll plug 3 contacts |
And also clips to LEDs, a small plastic case, a few darts and silicone glue.
Malyunok 1.
If for your purposes there are enough TTL standards, then a ready-made payment on the FT232 microcircuit will be sufficient (1 red card per little one), but if it is necessary to select levels close to those of the protocol - read further!
First, having done so, fastened the LEDs on the front side of the case with vikorist clips.
Malyunok 2
Malyunok 3.
Malyunok 4.
Malyunok 5.
On the board and ready Contact Maidanchiki with all signals (conducted to the RS232 protocol, only equal to TTL), as well as live contacts for LEDs RX and TX, vikoryst I'll give you payment You can purchase a replacement USB-COM adapter. A new adapter is not required to exchange RX and TX signals, as well as to select signals for connecting LEDs. In order to convert TTL levels close to the RS232 protocol, you need to change the MAX232 buffer chip, or a little later.
Malyunok 6
The board, as it turned out, was glued to the base of the body with silicone glue.
Malyunok 7
When the glue is dry, solder the LEDs to surround the string and resistors with a 270 Ohm support.
Malyunok 8
On one of the old boards I came across a ready-made fragment with all the necessary connections for the MAX232. It was impossible to only connect and solder the microcircuit.
Malyunok 9
Malyunok 10
The MAX232 microcircuits are not known at hand, instead they have become analogous - ADM232.
Malyunok 11
There is insulating material on the sides of the glue. Vikoristovuv silicone glue.
Malyunok 12
Malyunok 13
The glue is dry. Using the right foot, I glued the “sandwich” into the body.
Malyunok 14
Solder the circuit boards together, and also solder and secure the DB9 connector.
Malyunok 15
I've checked everything. Also included is a USB-COM adapter (RS232).
The holy days have ended, and the time has come to earn money.
It is possible that there is a needless device that will make the life of the average electronics engineer easier - connecting to a computer. This is necessary in order to transfer data to the computer (temperature from sensors, door positions, motor rotation frequency, table of values from the registrator...) or to receive data from the computer (table of values for calculation, data for control devices, new firmware for the vantageur...). To improve the new device (see what is happening there, at the brain of the microcontroller), an indispensable speech has been added.
As you know, there are no interfaces, for which microcontrollers you can use external light. How to deal with connections from a computer - the competition is the RS-232 interface (COM port). The reason is the simplicity of operation with a port on the side of the computer and the availability of a large number of programs for this purpose. In addition, the skin microcontroller also has a hardware supported USART interface (not the same RS-232, only with a voltage of 0 - 5v), which makes the connection process easy to implement.
In order to bring the signal of the microcontroller USART equal to the COM port of the computer, you need to select a clumsy converter (for example, on the MAX232), otherwise you can go the wrong way
The best way is to convert UART to USB. In this case, the USB port is treated by the computer as a virtual COM port. In this way we kill a bunch of hares:
- USB port in any computer (although the COM port is often used, but on laptops it is no longer available);
- as it turned out, the redesign of UART to COM (RS-232) became much more complex, lower than UART to USB (having worked twice with the programmer for the COM port with the redesign of MAX232 - I was offended twice);
– if you connect the device via a USB hub, we will have a number of virtual COM ports on one USB, plus security for the computer, since the hub acts as a buffer.
The axis circuit converts UART to USB.
I’ll be honest with you – this is not my device. taken a diagram is given From the website www.recursion.jp/avrcdc/. The reason I’m bringing up here is the simplicity of the circuit and the low cost of preparation. It’s easy to get the diagram (you can click on the layout).
I put the finished device in the form of a flash drive in order to make it easier to use in the minds of the field. For greater comfort, you can take a USB plug, connect it to your computer with one connector, and insert our “flash drive” into the other and remove it mobile device, which can be connected to any circuit without any problems.
Double-sided board, suitable for microcontrollers ATmega8/48/88/168
- Small prototype board in Sprint-Layout format
Axis option for production according to the described technology
- Small prototyping board in Sprint-Layout format on one ball
Firmware for various microcontrollers:
- UART to USB firmware for ATmega8/48/88/168
Fusion for CodeVisionAVR, PonyProg should be installed inversely
SPI interface for the display programmer together with all the interfaces on the back of the “flash drive” - we connect the programmer right there. The pin of the skid is soldered to the bottom of the pad (without being too important). When programming the conversion, it is necessary to supply a 5v voltage from the side of the interfaces. Via USB, it is unlikely that the voltage through the LED will change. If problems arise due to high noise, we add a resistor, which is adjusted to a low voltage (5-10 kOhm). The presence of the light-emitting diode is obligatory – vin vikoristovuetsya as a voltage regulator. The firmware transmits to the robot the lines to be controlled (CTS, RTS, DTR), but for UART they are not required and they are not connected to the interface connector. If you need a stink, you just need to “throw” jumpers from the bottom of the microcontroller to the bottom of the interface connector.
After the device has been collected,
You need to install the driver for the virtual COM port.
- Driver "Virtual Communications Port" for Win
The archive contains folders for different Wins:
/raw - for (Windows 2000/XP)
/w2k - for Windows 2000 (bulk mode only)
/xpvista7 - for Windows XP/Vista/7 x32
/vista64 - for Windows Vista x64
It’s really easy to do this:
1
We insert the flash drive into the USB port;
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There is a notification in the tray about those that have found a new device;
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Launch “New Ownership Wizard”, select “Installation from a designated location”, stamp “Next”;
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Select “Turn on the next place to search” and in the window indicate the required path to the driver;
5
Embossed “Dali”, driver is installed, embossed “Ready”
Now in “Vlastivosti” “my computer” in the “Ownership” tab there is a button “Device Manager”. There are a lot of new devices in the Device Manager window under the “Ports (COM and LPT)” section. "Virtual Communications Port (COM5)".
Each USB port will be assigned its own virtual COM port (COM5, COM6, COM7, etc.).
Ready! Now you can quickly redo it.
Let's check the usefulness of the conversion, which requires speed of input to output (RxD, TxD) and powering up the connected virtual port from the computer. Notifications have been sent to the culprits to return as accepted.
A “jumper”-switch is installed on the required line. We launch the robot program from the COM port. You can use the standard Windows hyperterminal, but you may prefer another program that is small, portable, and functional.
- Program for robots with COM port
We launch the program, install the required port (the visible port number in the device manager), disable the visibility and other parameters, press “Connect”, at the end of the “->Send” button, write a message, press “->Send” and let's forget the result. Bottom window - notification has been sent, large window - receive notification. As long as everything works, the information will be updated.
Given the “flash drive - converting interfaces”, it will later change to I2C toUSB, SPI to USB, SPI to UART, etc. it is necessary to recheck it necessary firmware. (Now I’m starting to feel a desire for universalization in myself:)).
P.S. The site-dzherelo recommends that in order to adjust the voltage level, the converter (3.3v) and the device (5v) connect them through the connection circuit. But I think that the resistors between the voltage in the RxD and TxD lines can be changed for convenience - you need to try it.
P.P.S. The main practical scheme in the book is that there will be more of them in the future, so that we have finally gotten over the basics (we have also lost our food supply - I’m slowly writing).
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In most cases (more precisely, in many cases) computers, both laptops and desktops, are not equipped with serial RS-232 ports. There was simply no need for this interface to be available - there was practically no shortage of mass products on the market external devices, which are connected via a standard COM port. There are no add-ons or devices that support only the latest ports of the RS-232/422/485 standards. A variety of receivers, in which flashing is installed via the serial port, are equipped with diagnostic equipment for cars and much more. Since there is no such port on the computer, what should you do?
In any computer store you can also get special USB adapters for the RS-232 serial port. The price range of such adapters is simply great: from 1 dollar for a “lace” of dubious search on eBay, up to 30-50-100 dollars for a device, there is no difference between the two. from the outside looking in like a one-dollar “lace”. So why vibrate? Internet news, both positive and negative consequences about completely inexpensive adapters. For some people they work without problems, for some people they can work on the same model to death. Why? There are two possible problems: This could be either a software problem or a purely hardware problem.
First of all, I’ll say something banal, it’s not good to count on miracles in the form of inexpensive devices. Yakisne security software- These are not what a small company can afford. The same components for production also vary greatly in price.
Why won't my USB-COM adapter work with my device?
There are a bunch of reasons.
1. Why is such an adapter formed? Ideally - s USB bridge at the last port and change the level at RS-232. On the right, the output is equal to TTL, so the output is 0 to (for these bridges) a maximum of 3.3 V. Often the voltage does not reach 3 V. The RS-232 standard requires a signal of ±5 V to ±15 V , moreover, the receiver must receive a signal with a discharge of ±3 V. The axis here is the main reason for the first savings - most often the transmitter simply does not convert the stagnation level, since theoretically +5V ±3V gives as much as +2V, and at the output, as a rule, d +2.5 to 3.3V, and from removing logic 1 from the voltage from -2 to -15 is impossible. Tobto. It is impossible to process such an adapter from RS-232, only with controllers that have TTL levels at the input. However, such devices are used, however, infrequently. Another problem: RS-232 microcircuits enable power saving mode (sleep mode). If the inputs are less than ±3V, then you won’t get out of the way. at the end of the day without reversing the voltage, at an output voltage of 2.5 no fires occurred. For “correct” adapters, the typical output voltage is set to ±6.5V, which falls within the standard by a margin.
Malyunok 1. “Correctly” creating an adapter-cable USB-COM Mini:
The wires are not soldered directly into the board, but connected via a connector. This prevents mechanical breakage of wires.
Indication – 2 LEDs.
The board itself is covered with varnish, everything is covered with gold to prevent oxidation.
Two microcircuits: as a bridge (in this case, FTDI FT232RL), and as a converter level ZT231LEEA.
Bright installation, clear elemental base.
If you often have to use an adapter, carry it around in your bag, or use it in places with chicken or aggressive ingredients, then you won’t be able to cope with any Ibnitsami. In addition, all 9 RS-232 signals are routed, which allows this adapter to be integrated with any RS-232 devices.
2. Another criterion for brightness is the adapter supporting all 9 standard RS-232 signals. Many models of inexpensive adapters support only 3 signals from 9. For many devices this is sufficient, for example, to control a frequency converter. Other devices, such as barcode readers, require all 9 signals. I’ll say it again, transitioner, whoever has redial modem signals, you can easily work with any RS-232 devices, and those that have more than 3, unfortunately.... And it’s not the first time that virus manufacturers advertise the power of their viruses. So, when searching for an adapter, check what signals are needed to connect to the device, and turn them around so that they support your choice of adapter. Before speaking, not all USB-UART bridges support all modem signals.
Lots of people, whose hands are screwed like a trace, want to make similar adapters themselves. On the Internet you can find schemes, little ones other boards and report recommendations. Why is the cherry skin used? Of course, since the principle is especially important to you, this is understandable. Even if you were surprised by the prices of microcircuits, I, for example, had no interest in such work. Only the microcircuit for converting TTL levels in the RS-232 MAX213EWI costs about 200 rubles. In this case, the microcircuit operates at a maximum speed of only 115 Kbit/sec, and not 921 Kbit/sec, as in the “correct” models. Have you thought why not install them with cheap adapters? The cheapest USB-UART PL2303 costs 210 rubles, FT232RQ – 360, FT232RL – 460, TUSB3410 – 530 rubles. Here I would like to point out that the FT232RQ, FT232RL microcircuits are the same, only with a small, but for some, even essential function - targeting the first microcircuits in 2 .5 times less, less than the other. Although this hour is not short at all. This is without hanging elements, plates, roses or housing. So, first of all, if you don’t take on such work, you might think that a ready-made one is also a bad option? However, we are aware that some virus developers (Chinese, although it’s not correct to point the finger at them) can, from FTDI and Texas Instruments, produce what seems to be an unclear virus, so one should be surprised at the manufacturer yogo reputation.
And yet, if you wanted to make such an adapter with your own hands, you can find reports on the circuits of such devices in the datasheets of microcircuit manufacturers at any time. Once again I will repeat the message on the most popular microcircuits: