Bascom rs232 software

When assigning stdout to lcdstd as line 31, we declare that LCD is the default input device. Here is the value of the variable x in the statement at line In summary, the fprintf function allows direct printing to a specified virtual device while using the printf function we need to assign the input device Precedes for the stdout variable.

Take a look at the code from lines 34 through 37 and the first three lines in the terminal in Figure 6, which you probably already know for yourself. Finally, the UART data interrupt server is in code lines 41 through In many cases, communication requirements require a higher degree of complexity, such as data storage or variable graphing, so users need to write their own programs on their own. Note, the purpose of this article is on AVR, so the application written on Windows I just presented a simple way for you to grasp the principle.

To develop more sophisticated applications, readers need to equip themselves with knowledge of Windows programming. Since the later versions of Windows , communication with traditional computer ports, such as LPT ports, in Windows was relatively difficult. As a "controller" designed for COM ports, MSComm contains all the tools needed to communicate with this port, the job of the programmer is simply to declare and use.

You will see a Project named "Project1" with a background dialog box named Form1. You can name any project and main form. From the Toolbox toolbar, click on the "textbox" control and draw two main textboxes called txtOuput and txtInput rename text boxes in the Properties window. Next put the MSComm control into the main form.

You will see a dialog box named Components. Find and click on the "Microsoft Comm Control 6. Click on this icon and draw a MSComm object on the main form.

Keep the default name of this object is MSComm1. The purpose of this example is as follows: Data received from the COM port is displayed on the txtOutput textbox, and when user type 1 characters in the txtInput character will be transmitted over the COM port.

The onComm event is essentially an MSComm interrupt handler. When there is one byte of data sent to the buffer of the COM port the number of bytes specified by the RThreshold , the onComm event will occur, in this event we will write the code to receive and process the data. Line 2 we declare a temporary variable named InputText with string data type.

Note that the onComm event can occur for a variety of reasons, where we only care about the case of incoming data, line 3 is a sort of "filter" event, we only execute the line of code whereas the comEvReceive event occurs the data is retrieved :.

If Me. After this command the data will be contained in the temporary variable InputText. Next we just increment the characters received into the content of the textbox txtOutput to display on the screen line 5 : txtOutput. Line 6 is responsible for bringing the cursor to the end of the txtOutput content for easy viewing of the data. Finally, doubleclick on the txtInput textbox and look for the KeyPress event to write the following lines of code:.

The line Me. To test your program, perform the following simulation:. In the second dialog box select "Dialog based" for the project type, and click Finish to create the project other steps to default. When the new project is created, a dialog box appears with the "OK" and "Cancel" buttons on it. Use the "Edit" tool to add 2 "Edit boxes" and rearrange the interface. When done this way you do not need to use IsCharWaiting, this instruction automatically waits for the data. Sorry for late response but I was still testing different options.

Your printbin really works, so thank you very much! I just get weird numbers really big ones but I don't mind because I just divide them and I get the right value. If you know why is that you can tell me for future use. Then I had problem how to address each ultrasonic sensor because I have 3 so if 1 is faulty I can determine which one needs to be replaced and I could create fault signal if one is different for like 10 cm than the other 2 because the signals were mixing.

So first I printed value for sensor 1 but on receiver side it was read as sensor 2, next cycle for some other sensor etc. But I didn't received anything on Rx side I guess numbers were not in "dim as long" reach. I also tried with delays but I was not happy with the outcome sometimes was working and sometimes it was not etc. Well now on transmitter side I just added value 1 to value 2 and to value 3 and then I divide with 3 so I get average value and this is the number I print.

It works now, but I still have a lot of work to do, I have lots of faulty readings maybe because of the internal crystal like you said so maybe I just need to stabilize connection somehow. If I touch any ground - I lose connection. Thank you very much again, if you have any idea of somehow addressing each values I am all ears. Then work to take several readings from one sensor, remove the high and low values, and average the remaining values.

Then work to integrate multiple ultrasound modules into your system, taking multiple readings, and transmitting your meaningful data. When you can transmit and receive a variable reliably, ask about simple data packet structures for transmitting multiple variables.

Skip to main content. Log in or register to post comments. Go To Last Post. Level: New Member. Posts: 5 View posts. Posted by Kinjark : Sat. Feb 25, - PM. Fivestar widget 1 2 3 4 5. Dear AVR community, I have a problem with printing variable from one atmega16 and then read this variable on another atmega16 Software using: Bascom AVR Used chips: atmel atmega16 Intention : I want to measure the water in water tank approx. Your help will be really appreciated.

Regards, Jan. By : Berbagi Pengetahuan. Klik tab di atas berlabel "Produk". Artikel Terkait Lainnya :. Posted in: Mikrokontroler. Unknown says:. Haviz Setiawan says:. Most new computers today does not have a RS COM port which makes the use of a USB to serial converter useful for connecting equipment such as serial printers, scanners, scales and GPS devices, but also many types of business, office and laboratory equipment.

Wireless Serial Solutions. Serial to Ethernet Converters. Serial Port Cards. Serial Accessories. Lantronix Brand Converters. Discontinued Products. Your header in Here.