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Added argument to HardwareSerial.begin to specify whether the logic levels of the UART rx and tx lines should be inverted (#719)

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This commit is contained in:
Ewald Wasscher 2017-10-13 10:46:56 +02:00 committed by Me No Dev
parent cabc4c5bb5
commit e6a5b68e40
2 changed files with 3 additions and 3 deletions
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4
cores/esp32/HardwareSerial.cpp
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@ -9,7 +9,7 @@ HardwareSerial Serial(0);
HardwareSerial::HardwareSerial(int uart_nr) : _uart_nr(uart_nr), _uart(NULL) {} HardwareSerial::HardwareSerial(int uart_nr) : _uart_nr(uart_nr), _uart(NULL) {}
void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin) void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin, bool invert)
{ {
if(0 > _uart_nr || _uart_nr > 2) { if(0 > _uart_nr || _uart_nr > 2) {
log_e("Serial number is invalid, please use 0, 1 or 2"); log_e("Serial number is invalid, please use 0, 1 or 2");
@ -30,7 +30,7 @@ void HardwareSerial::begin(unsigned long baud, uint32_t config, int8_t rxPin, in
rxPin = 16; rxPin = 16;
txPin = 17; txPin = 17;
} }
_uart = uartBegin(_uart_nr, baud, config, rxPin, txPin, 256, false); _uart = uartBegin(_uart_nr, baud, config, rxPin, txPin, 256, invert);
} }
void HardwareSerial::end() void HardwareSerial::end()

2
cores/esp32/HardwareSerial.h
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@ -37,7 +37,7 @@ class HardwareSerial: public Stream
public: public:
HardwareSerial(int uart_nr); HardwareSerial(int uart_nr);
void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1); void begin(unsigned long baud, uint32_t config=SERIAL_8N1, int8_t rxPin=-1, int8_t txPin=-1, bool invert=false);
void end(); void end();
int available(void); int available(void);
int peek(void); int peek(void);