|
|
@ -175,12 +175,12 @@
|
|
|
|
// If the character is to be stored at the index just before the tail
|
|
|
|
// If the character is to be stored at the index just before the tail
|
|
|
|
// (such that the head would advance to the current tail), the buffer is
|
|
|
|
// (such that the head would advance to the current tail), the buffer is
|
|
|
|
// critical, so don't write the character or advance the head.
|
|
|
|
// critical, so don't write the character or advance the head.
|
|
|
|
|
|
|
|
const char c = M_UDRx;
|
|
|
|
if (i != rx_buffer.tail) {
|
|
|
|
if (i != rx_buffer.tail) {
|
|
|
|
rx_buffer.buffer[h] = M_UDRx;
|
|
|
|
rx_buffer.buffer[h] = c;
|
|
|
|
rx_buffer.head = i;
|
|
|
|
rx_buffer.head = i;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
else {
|
|
|
|
else {
|
|
|
|
(void)M_UDRx;
|
|
|
|
|
|
|
|
#if ENABLED(SERIAL_STATS_DROPPED_RX)
|
|
|
|
#if ENABLED(SERIAL_STATS_DROPPED_RX)
|
|
|
|
if (!++rx_dropped_bytes) ++rx_dropped_bytes;
|
|
|
|
if (!++rx_dropped_bytes) ++rx_dropped_bytes;
|
|
|
|
#endif
|
|
|
|
#endif
|
|
|
|