MCF51QE128RM getchar() doesn't return char

FredT — Sat, 01 Mar 2008 01:35:54 GMT

Hi, I'm trying to get a char coming from a RS232, and I don't receive anythin. I'm using debug to see what's happening, and I see that the getchar() is using this function:

char TERMIO_GetChar( void )
{
size_t cnt = 1;
char ch;
__read_console(0, (unsigned char *)&ch, &cnt, 0L);
}

I see the entered character in the ch variable, but the function doesn't return the character.

Is the library wrong or I'm a using the wrong library. I'm having those librairies in my project:
- fp_coldfire_nodiv.a
- C_4i_CF_RegABI_MSL.a
- C_4i_CF_RegABI_Runtime.a

Have a nice day !

Fred Talbot

Re: MCF51QE128RM getchar() doesn't return char

CrasyCat — Sat, 01 Mar 2008 15:04:19 GMT

Hello

Here I would add a

return (ch);

at the end of the function TERMIO_GetChar.

char TERMIO_GetChar( void )
{
size_t cnt = 1;
char ch;
__read_console(0, (unsigned char *)&ch, &cnt, 0L);
return ch;
}

This function is implemented in

{Install}\ColdFire_Support\msl\MSL_C\MSL_Common\Src\printf_tiny_IO.c

Make sure to rebuild C_4i_CF_RegABI_MSL.a after you apply this changes

CrasyCat

topic MCF51QE128RM getchar() doesn't return char in ColdFire/68K Microcontrollers and Processors

MCF51QE128RM getchar() doesn't return char

Re: MCF51QE128RM getchar() doesn't return char