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[ESP32] Allow user to define pins for hardware Serial1 and Serial2 (#16918)

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vivian-ng
2020-02-22 19:00:10 +09:00
committed by GitHub
parent 484e1a624c
commit eeec4c27e7
3 changed files with 40 additions and 1 deletions
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22
Marlin/src/HAL/HAL_ESP32/HAL.cpp
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@ -27,6 +27,7 @@
#include <rom/rtc.h>
#include <driver/adc.h>
#include <esp_adc_cal.h>
#include <HardwareSerial.h>
#include "../../inc/MarlinConfigPre.h"
@ -105,6 +106,27 @@ void HAL_init_board() {
#endif
server.begin();
#endif
// ESP32 uses a GPIO matrix that allows pins to be assigned to hardware serial ports.
// The following code initializes hardware Serial1 and Serial2 to use user-defined pins
// if they have been defined.
#if defined(HARDWARE_SERIAL1_RX) && defined(HARDWARE_SERIAL1_TX)
HardwareSerial Serial1(1);
#ifdef TMC_BAUD_RATE // use TMC_BAUD_RATE for Serial1 if defined
Serial1.begin(TMC_BAUD_RATE, SERIAL_8N1, HARDWARE_SERIAL1_RX, HARDWARE_SERIAL1_TX);
#else // use default BAUDRATE if TMC_BAUD_RATE not defined
Serial1.begin(BAUDRATE, SERIAL_8N1, HARDWARE_SERIAL1_RX, HARDWARE_SERIAL1_TX);
#endif
#endif
#if defined(HARDWARE_SERIAL2_RX) && defined(HARDWARE_SERIAL2_TX)
HardwareSerial Serial2(2);
#ifdef TMC_BAUD_RATE // use TMC_BAUD_RATE for Serial1 if defined
Serial2.begin(TMC_BAUD_RATE, SERIAL_8N1, HARDWARE_SERIAL2_RX, HARDWARE_SERIAL2_TX);
#else // use default BAUDRATE if TMC_BAUD_RATE not defined
Serial2.begin(BAUDRATE, SERIAL_8N1, HARDWARE_SERIAL2_RX, HARDWARE_SERIAL2_TX);
#endif
#endif
}
void HAL_idletask() {