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Add hidden Serial overflow debug options

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This commit is contained in:
etagle
2018-06-09 21:07:06 -03:00
committed by Scott Lahteine
parent d90e8fcad9
commit 99af086cea
5 changed files with 94 additions and 0 deletions
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21
Marlin/src/HAL/HAL_AVR/MarlinSerial.cpp
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@@ -72,6 +72,14 @@
uint8_t rx_dropped_bytes = 0;
#endif
#if ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS)
uint8_t rx_buffer_overruns = 0;
#endif
#if ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS)
uint8_t rx_framing_errors = 0;
#endif
#if ENABLED(SERIAL_STATS_MAX_RX_QUEUED)
ring_buffer_pos_t rx_max_enqueued = 0;
#endif
@@ -99,6 +107,19 @@
// Get the next element
ring_buffer_pos_t i = (ring_buffer_pos_t)(h + 1) & (ring_buffer_pos_t)(RX_BUFFER_SIZE - 1);
// This must read the M_UCSRxA register before reading the received byte to detect error causes
#if ENABLED(SERIAL_STATS_DROPPED_RX)
if (TEST(M_UCSRxA, M_DORx) && !++rx_dropped_bytes) --rx_dropped_bytes;
#endif
#if ENABLED(SERIAL_STATS_RX_BUFFER_OVERRUNS)
if (TEST(M_UCSRxA, M_DORx) && !++rx_buffer_overruns) --rx_buffer_overruns;
#endif
#if ENABLED(SERIAL_STATS_RX_FRAMING_ERRORS)
if (TEST(M_UCSRxA, M_FEx) && !++rx_framing_errors) --rx_framing_errors;
#endif
// Read the character from the USART
uint8_t c = M_UDRx;