"Realterm" software instead dedicated software

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I have a simple software (dedicated software) in a PC that I can change the frequency of a device.  The frequency of the device can be changed by typing our desired value in software. The connection between PC and device is an RS232 cable.
I read the context of data between computer and device (by "Realterm" software) and saved them on a text file, then I sent these codes to the device.
Not only it didn't been programmed but also I couldn't connect to the device by software again. 

Last Edited: Wed. Dec 4, 2019 - 09:21 AM
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majid.conf wrote:
I have a simple software (dedicated software) in a PC

Is that software that you wrote yourself?

 

the device

what "device" ?

 

 

 

So what was your question?

 

 

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Last Edited: Wed. Dec 4, 2019 - 09:07 AM
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Oh - this seems to be a duplicate of your existing thread: https://www.avrfreaks.net/commen... ?

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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The question is why after programming by ”Realterm” my device doesn’t work even with previous software?

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Clearly, whatever you sent by   ”Realterm”  was not correct, and has upset the "device"

 

You posted just as I wrote:
Oh - this seems to be a duplicate of your existing thread: https://www.avrfreaks.net/commen... ?

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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majid.conf wrote:
The question is why after programming by ”Realterm” my device doesn’t work even with previous software?

that depends on the software in the micro controller itself.

You might have set a complete wrong frequency and now it turned unresponsive.

 

You are the master there, we only have a crystal ball to see through what is the code inside and what it will do if a faulty number is given.

 

But it sure seems like you are now spreading the discussion over 2 places, specially as the original posting holds all the crucial information that is missing in this new thread, so think best keep the discussion there to not get people confused.

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My device is a frequency synthesizer which it’s frequency can be controlled by software on the computer. This simple program is not written by me I just read hex code by Reslterm while I was programming the synthesizer by PC.

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So is this just a repeat of your other thread, or not?

 

Top Tips:

  1. How to properly post source code - see: https://www.avrfreaks.net/comment... - also how to properly include images/pictures
  2. "Garbage" characters on a serial terminal are (almost?) invariably due to wrong baud rate - see: https://learn.sparkfun.com/tutorials/serial-communication
  3. Wrong baud rate is usually due to not running at the speed you thought; check by blinking a LED to see if you get the speed you expected
  4. Difference between a crystal, and a crystal oscillatorhttps://www.avrfreaks.net/comment...
  5. When your question is resolved, mark the solution: https://www.avrfreaks.net/comment...
  6. Beginner's "Getting Started" tips: https://www.avrfreaks.net/comment...
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