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fix bug when TX buffer is full and os will write.

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in this case we hang endless or until wtd triggers.

new:
 now we overdrive the data in FIFO --> no hang / crash but we loss chars.
 only happens by extensive use of os_printf!
This commit is contained in:
Markus Sattler 2015-05-14 21:41:43 +02:00
parent 4644c3bad0
commit b4a8bb0653
1 changed files with 20 additions and 16 deletions
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12
cores/esp8266/HardwareSerial.cpp
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@ -392,30 +392,34 @@ void uart_ignore_char(char c) {
void uart0_write_char(char c) {
if(&Serial != NULL && Serial.isTxEnabled()) {
if(Serial.availableForWrite() > 0) {
if(c == '\n') {
Serial.write('\r');
}
Serial.write(c);
} else {
return;
}
}
if(c == '\n') {
USF(0) = '\r';
}
USF(0) = c;
}
}
void uart1_write_char(char c) {
if(&Serial1 != NULL && Serial1.isTxEnabled()) {
if(Serial1.availableForWrite() > 0) {
if(c == '\n') {
Serial1.write('\r');
}
Serial1.write(c);
} else {
return;
}
}
if(c == '\n') {
USF(1) = '\r';
}
USF(1) = c;
}
}
static int s_uart_debug_nr = UART0;