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[51] How to send 'Enter' character using printf

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hithesh123

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How to send enter or Carriage return using printf on serial port?
 

Try '\n' or '\r' (backslash followed by 'n' or 'r'). You can also try sending character 0x0D which should do the same thing.

Brian.
 

betwixt said:
Try '\n' or '\r' (backslash followed by 'n' or 'r'). You can also try sending character 0x0D which should do the same thing.

Brian.
Click to expand...

The \n is for new line.
I will try the \r.

Sending char 0x0D is my last option. I'll have to write a serial port routing myself instead of using printf.
 

I though that people would learn this with their very first C program
Code: 
printf("Hello world\r\n");
 

FvM said:
I though that people would learn this with their very first C program
Code: 
printf("Hello world\r\n");
Click to expand...

Not really. My frist C program was just

Code: 
printf("Hello world");
 

Followup question -

how to send ctrl+z using printf?
 

Hithesh123, the ctrl charaters and all punctuation characters are part of the ASCII character set. If you look at a copy you will see all charcters, including ones like CR have a number which you can use in their place. For example, for 'A' you can also use 0x41 or 65 decimal.

Brian.
 

Not really. My first C program was just printf("Hello world");
Click to expand...
Kernighan-Ritchie The C programming language has this "first C programm"
Code: 
printf("hello, world\n");
A single newline character is the usual line end signal in the Unix word, DOS/Windows has a carriage return + linfeed combination "\r\n".

how to send ctrl+z using printf?
Click to expand...
According to the C standard, you would use an octal constant "\032" in the format string.
 

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