Fix UART random stop when sending data really fast

2017-04-24 17:42:39 +02:00 · 2017-04-24 17:42:39 +02:00 · 3df3a5fede
parent 4ce9c07fa5
commit 3df3a5fede
1 changed files with 1 additions and 1 deletions
--- a/STM32/cores/arduino/stm32/SerialUART.cpp
+++ b/STM32/cores/arduino/stm32/SerialUART.cpp
@ -137,7 +137,7 @@ size_t SerialUART::write(const uint8_t c) {
  
  txBuffer[txEnd % BUFFER_SIZE] = c;
  txEnd++;
-  if (txEnd == txStart + 1) {
+  if (txEnd % BUFFER_SIZE == (txStart + 1) % BUFFER_SIZE) {
    HAL_UART_Transmit_IT(handle, &txBuffer[txStart % BUFFER_SIZE], 1);
  }
  return 1;