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Use correct type for index calculation in HardwareSerial

This commit is contained in:
Cristian Maglie 2014-04-01 17:18:02 +02:00
parent 77187ad4e4
commit 1ad74ce09b

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@ -99,7 +99,7 @@ void HardwareSerial::_rx_complete_irq(void)
// No Parity error, read byte and store it in the buffer if there is
// room
unsigned char c = *_udr;
uint8_t i = (unsigned int)(_rx_buffer_head + 1) % SERIAL_RX_BUFFER_SIZE;
rx_buffer_index_t i = (unsigned int)(_rx_buffer_head + 1) % SERIAL_RX_BUFFER_SIZE;
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the