Hi all,
I'm working on improving IRQ support on PIC32 and I'm testing UART Rx using
the shell.
The shell uses putchar, but putchar is buffered and needs a flush, thus
when typing at the console I get no feedback until I press enter (the line
feed gets echo'd and then we get the flush).
I'm surprised other newlib implementations don't see this ?
A flush is probably needed here:
#if !defined(SHELL_NO_ECHO) || !defined(SHELL_NO_PROMPT)
#ifdef MODULE_NEWLIB
/* use local copy of putchar, as it seems to be inlined,
* enlarging code by 50% */
static void _putchar(int c) {
putchar(c);
fflush(STDOUT) <------- HERE
}
#else
#define _putchar putchar
#endif
#endif
I'm happy to do a PR for this, but this is very core functionality, I don't
want to break anything ??
Cheers,
Neil
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