How to read from Serial Port

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Hai guys,

Please help me to sort out this issue. I wan to read from COM7 port. I tried every means to grab the values. What i am expecting from serial port is

"0A 0D AE E6 D6 6F D7 0F 0B 9B BF E2 41 A3 3A CF 67 CB D7 EE 6F 58 8B DB 7D 79 BE 6C 69 FE F3 B0 8D DD"

But i am getting the following value:

"x10 x13 x10 x13 x63 x63 x10 x13 x63 x63 x63 x111 x10 x13 x63 x63 x63 x111 x63 x15"

The code i am using is :

C#

String Rxstring="";
char[] result = new char[1];
     for (int len = 0; len < result.Length; )
        len += serialPort1.Read(result, len, result.Length - len);
     foreach (char c in result)
        RxString += String.Format("x{0}", Convert.ToUInt16(c).ToString()) + "    ";

I am writing 1 byte of data to COM port using a device(arduino uno). i changed the baud rate but no change in the data. is It the problem of conversion(Convert.ToUint16). Hot to convert it into HEX value.

Please help me guys.

additional information copied from non solution below (it came after solution 1)
Thanks my friend, I edited my code as you mentioned, again the problem exist. Now i am getting values as:

"0A 0D 3F 3F 3F 6F 3F 0F 1B 3F 3F 3F 41 3F 3A 3F 67 3F 3F 3F 6F 58 0B 3F 7D 79 3F 6C 69 3F 3F 3F 3F 3F"

Why i am getting "3F" most times and its ASCII equivalent is "?" ?.Some data matches exactly.But...

I am writing 1 byte of data to COM port using a device(arduino uno). I have changed the baud rate but no change in the data received . is It the problem of conversion(Convert.ToUint16) or does c# cannot recognize the character or problem with visual studio encoding.

Posted 3-Apr-14 3:35am

boneykalari

Updated 4-Apr-14 23:36pm

Nelek

v2

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PIEBALDconsult · Answer 1 · 2014-04-03T03:48:00

Solution 1

You're simply not formatting the value correctly; "x{0}" should be "{0:X2}" and remove the ToString.

And that's some seriously strange code that probably needs a lot more help.

Posted 3-Apr-14 3:48am

PIEBALDconsult

Updated 3-Apr-14 3:54am

v3

Comments

Nelek 5-Apr-14 5:37am

OP posted a non solution to speak with you and ask more, I have updated the question to add the content there

PIEBALDconsult 5-Apr-14 11:43am

Thanks.

boneykalari · Answer 2 · 2014-04-04T22:12:00

Solution 2

Thanks my friend, I edited my code as you mentioned, again the problem exist. Now i am getting values as:

"0A 0D 3F 3F 3F 6F 3F 0F 1B 3F 3F 3F 41 3F 3A 3F 67 3F 3F 3F 6F 58 0B 3F 7D 79 3F 6C 69 3F 3F 3F 3F 3F"

Why i am getting "3F" most times and its ASCII equivalent is "?" ?.Some data matches exactly.But...

I am writing 1 byte of data to COM port using a device(arduino uno). I have changed the baud rate but no change in the data received . is It the problem of conversion(Convert.ToUint16) or does c# cannot recognize the character or problem with visual studio encoding.

Posted 4-Apr-14 22:12pm

boneykalari

Comments

Nelek 5-Apr-14 5:35am

Please don't post solutions to chat with people asking or answering. The messages are not always sorted by date, so it can be a bit difficult to follow them correctly.
The best option is to use the "Have a question or comment?" (or the tiny "reply" on another comment). Another advantage is, that the person you write to will get a notification, otherwise it could be that he/she doesn't see your additional message.

If you need to add or change content to your question or a previous solution, please use the "improve question / solution" instead of writing a lot of messages. It will keep readability and help other users with similar problems to find it faster.

PIEBALDconsult 7-Apr-14 0:34am

What does your code look like now?

How to read from Serial Port

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