When sending data to other device it receive the 1st letter n 4th letter

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when sending "help" i receive "hp" but "h12e12l123p"i receive "help" which means after every letter the must be 2 space

What I have tried:

public void receiveMsg()
receivedMsgTextbox.AppendText(serialPort1.ReadExisting());
private void sendMsgTextbox_KeyPress(object sender, KeyPressEventArgs e)
byte c = (byte)e.KeyChar;
if(c == 0x0D)
c = 0x0A;
serialPort1.WriteLine(sendMsgTextbox.Text);
receiveMsg();

Posted 30-Aug-16 21:58pm

Member 12623023

Updated 30-Aug-16 22:14pm

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Member 12623023 31-Aug-16 4:14am

Add up to the question ive checked the daude rate fine,encoding fine read n write buffer size fine i need help on what can i check now which might be causing the message to loose every 2 letters after printing the 1st

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OriginalGriff · Answer 1 · 2016-08-30T22:14:00

Check your serial port configuration: it may be that you need to "tweek" the BPC, stop bits, and / or parity to match the target hardware.

Start by using something like Hyperterminal to make sure you have good solid communications between your PC and the target - until you have that provably working perfectly, you are just adding complications by coding SerialPort code. At present, you don't know if the problem is at your end or the remote device just can't cope with data as "quickly" as you are sending it.