PicoLCSerial.cpp

#include <Arduino.h>
#include "PicoLC.h"
#include "../internal/PicoLCPins.h"

PicoLCSerial::PicoLCSerial() {

}

void PicoLCSerial::begin(uint32_t baud, uint16_t config) {
 if( !_started ) {
 pinMode(picolc::pins::CommDE, OUTPUT);
 digitalWrite(picolc::pins::CommDE, LOW);
 pinMode(picolc::pins::CommRE, OUTPUT);
 digitalWrite(picolc::pins::CommRE, HIGH);
 Serial1.setTX(picolc::pins::CommTX);
 Serial1.setRX(picolc::pins::CommRX);
 Serial1.begin(baud, config);
 _started = true;
 }
}

void PicoLCSerial::end() {
 if( _started ) {
 Serial1.end();
 _started = false;
 }
}

int PicoLCSerial::available() { return _started ? Serial1.available() : 0; }
int PicoLCSerial::read() { return _started ? Serial1.read() : -1; }
int PicoLCSerial::peek() { return _started ? Serial1.peek() : -1; }

size_t PicoLCSerial::write(uint8_t value) {
 if( _started ) {
 setTR(true);
 size_t result = Serial1.write(value);
 setTR(false);
 return result;
 }
 return 0;
}

size_t PicoLCSerial::write(const uint8_t* buffer, size_t size) {
 if( _started ) {
 setTR(true);
 size_t result = Serial1.write(buffer, size);
 setTR(false);
 return result;
 }
 return 0;
}

void PicoLCSerial::flush() {
 if( _started ) { Serial1.flush(); }
}

void PicoLCSerial::setTR(bool writing) {
 if( _started ) {
 if( writing ) {
 digitalWrite(picolc::pins::CommRE, LOW);
 digitalWrite(picolc::pins::CommDE, HIGH);
 delay(1);
 } else {
 delay(1);
 digitalWrite(picolc::pins::CommDE, LOW);
 digitalWrite(picolc::pins::CommRE, HIGH);
 }
 }
}
bool PicoLCSerial::started() const { return _started; }