No response to Command Ctrl codes in '634

[David Smith]

Hi,

Using a '634 v2.3, using CCS C

My display responds correctly to ctrl-M,J,L putc(13), putc(10) putc(12)....
but the other codes seem to have no effect.
For example: putc(4) should hide cursor... \004 = CTRL-D
Is there some add'l code I must transmit?

(I could find no embedded C code sample online, nor a reference in the data sheet).

...
       putc(' ');   //
       putc(4);    // hide cursor
       clrscrn();   // sends ctrl-L
       printf("* Test *\n\r");

Thank you.

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[CF Tech]

Usually this kind of issue is related to the OS processing the serial stream.

What OS are you using? If it is Linux, the following page may help:

http://man-wiki.net/index.php/3:termios

This bit sounds helpful:

      cfmakeraw() sets the terminal attributes as follows:
 
          termios_p->c_iflag &= ~(IGNBRK | BRKINT | PARMRK | ISTRIP
                          | INLCR | IGNCR | ICRNL | IXON);
          termios_p->c_oflag &= ~OPOST;
          termios_p->c_lflag &= ~(ECHO | ECHONL | ICANON | ISIG | IEXTEN);
          termios_p->c_cflag &= ~(CSIZE | PARENB);
          termios_p->c_cflag |= CS8;

(sorry for being vague, but it has been ages since I last did something like this under Unix)