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Hi Community, i have a big problem. I want to write something like a ECHO - Funktion. That means i recive a char an send it back like in this source ...
void serial_int (void) interrupt 4 using 3 { static char chr = '\0'; if (RI == 1) { chr = SBUF; RI = 0; TI = 1; TL0 = 0xFF; } else if (TI == 1) { TI = 0; if (chr != '\0') { if (chr == '\r') chr = '\n'; SBUF = chr; while(TI == 0); TL0 = 0xFF; chr = '\0'; } } }
static void com_isr (void) interrupt 4 using 1 { .... putbuf(c); .... } void putbuf (char c) using 0 { The default "using 0" added to show the problem. Erik
static void com_isr (void) interrupt 4 using 1 { .... putbuf(c); .... } void putbuf (char c) using 0 {