serial.h

/*

  serial.h - low level functions for transmitting bytes via the serial port

  Part of grblHAL

  Copyright (c) 2017-2022 Terje Io

  Grbl is free software: you can redistribute it and/or modify
  it under the terms of the GNU General Public License as published by
  the Free Software Foundation, either version 3 of the License, or
  (at your option) any later version.

  Grbl is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with Grbl.  If not, see <http://www.gnu.org/licenses/>.

*/

#include <stdint.h>
#include <stdbool.h>

#include "driver.h"
#include "grbl/protocol.h"

#define BACKCHANNEL // comment out to use Launchpad Backchannel UART

#define eusci(p) eusciM(p)
#define eusciM(p) EUSCI_ ## p
#define eusciINT(p) eusciI(p)
#define eusciI(p) EUSCI ## p ## _IRQn
#define eusciHANDLER(p) eusciH(p)
#define eusciH(p) EUSCI ## p ## _IRQHandler

#define XONOK (ASCII_XON|0x80)
#define XOFFOK (ASCII_XON|0x80)
#define RX_BUFFER_HWM 900
#define RX_BUFFER_LWM 300

//#define LINE_BUFFER_SIZE 20

// Define serial port pins and module

#define SERIAL_MOD A0
#define SERIAL_MODULE eusci(SERIAL_MOD)
#define SERIAL_MODULE_INT eusciINT(SERIAL_MOD)
#define SERIAL_IRQHandler eusciHANDLER(SERIAL_MOD)
#define SERIAL_PORT P1
#define SERIAL_RX_PIN 2
#define SERIAL_TX_PIN 3

#if KEYPAD_ENABLE == 2 || MPG_ENABLE || MODBUS_ENABLE
#define SERIAL2_MOD A2
#define SERIAL2_MODULE eusci(SERIAL2_MOD)
#define SERIAL2_MODULE_INT eusciINT(SERIAL2_MOD)
#define SERIAL2_IRQHandler eusciHANDLER(SERIAL2_MOD)
#define SERIAL2_PORT P3
#define SERIAL2_RX_PIN 2
#define SERIAL2_TX_PIN 3
#endif

//

void serialRegisterStreams (void);
const io_stream_t *serialInit (uint32_t baud_rate);
#ifdef SERIAL2_MOD
const io_stream_t *serial2Init (uint32_t baud_rate);
#endif

/*EOF*/