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- /**
- * Marlin 3D Printer Firmware
- * Copyright (c) 2020 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
- *
- * Based on Sprinter and grbl.
- * Copyright (c) 2011 Camiel Gubbels / Erik van der Zalm
- *
- * This program 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.
- *
- * This program 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 this program. If not, see <https://www.gnu.org/licenses/>.
- *
- */
-
- #include "../../inc/MarlinConfig.h"
-
- #if ENABLED(BAUD_RATE_GCODE)
-
- #include "../gcode.h"
-
- /**
- * M575 - Change serial baud rate
- *
- * P<index> - Serial port index. Omit for all.
- * B<baudrate> - Baud rate (bits per second)
- */
- void GcodeSuite::M575() {
- int32_t baud = parser.ulongval('B');
- switch (baud) {
- case 24:
- case 96:
- case 192:
- case 384:
- case 576:
- case 1152: baud *= 100; break;
- case 250:
- case 500: baud *= 1000; break;
- case 19: baud = 19200; break;
- case 38: baud = 38400; break;
- case 57: baud = 57600; break;
- case 115: baud = 115200; break;
- }
- switch (baud) {
- case 2400: case 9600: case 19200: case 38400: case 57600:
- case 115200: case 250000: case 500000: case 1000000: {
- const int8_t port = parser.intval('P', -99);
- const bool set1 = (port == -99 || port == 0);
- if (set1) SERIAL_ECHO_MSG(" Serial ", AS_DIGIT(0), " baud rate set to ", baud);
- #if HAS_MULTI_SERIAL
- const bool set2 = (port == -99 || port == 1);
- if (set2) SERIAL_ECHO_MSG(" Serial ", AS_DIGIT(1), " baud rate set to ", baud);
- #ifdef SERIAL_PORT_3
- const bool set3 = (port == -99 || port == 2);
- if (set3) SERIAL_ECHO_MSG(" Serial ", AS_DIGIT(2), " baud rate set to ", baud);
- #endif
- #endif
-
- SERIAL_FLUSH();
-
- if (set1) { MYSERIAL1.end(); MYSERIAL1.begin(baud); }
- #if HAS_MULTI_SERIAL
- if (set2) { MYSERIAL2.end(); MYSERIAL2.begin(baud); }
- #ifdef SERIAL_PORT_3
- if (set3) { MYSERIAL3.end(); MYSERIAL3.begin(baud); }
- #endif
- #endif
-
- } break;
- default: SERIAL_ECHO_MSG("?(B)aud rate implausible.");
- }
- }
-
- #endif // BAUD_RATE_GCODE
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