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

[hithesh123]

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

 

[betwixt]

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

Brian.

 

[hithesh123]

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

Brian.

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.

 

[FvM]

I though that people would learn this with their very first C program

printf("Hello world\r\n");

 

[hithesh123]

I though that people would learn this with their very first C program

printf("Hello world\r\n");

Not really. My frist C program was just

printf("Hello world");

 

[hithesh123]

Followup question -

how to send ctrl+z using printf?

 

[milan.rajik]

Send 0x1A (1 byte)

 

[betwixt]

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.

 

[FvM]

Not really. My first C program was just printf("Hello world");

Kernighan-Ritchie The C programming language has this "first C programm"

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?

According to the C standard, you would use an octal constant "\032" in the format string.

 

[betwixt]

... forgot about Octal, not used that for many years. You could use binary as well I suppose.

Brian.

 

[FvM]

Right, according to ANSI-C, "\x1a" should be accepted as well.