9be7b3d930
- Rudimentary CoreXY kinematics support. Didn’t test, but homing and feed holds should work. See config.h. Please report successes and issues as we find bugs. - G40 (disable cutter comp) is now “supported”. Meaning that Grbl will no longer issue an error when typically sent in g-code program header. - Refactored coolant and spindle state setting into separate functions for future features. - Configuration option for fixing homing behavior when there are two limit switches on the same axis sharing an input pin. - Created a new “grbl.h” that will eventually be used as the main include file for Grbl. Also will help simply uploading through the Arduino IDE - Separated out the alarms execution flags from the realtime (used be called runtime) execution flag variable. Now reports exactly what caused the alarm. Expandable for new alarms later on. - Refactored the homing cycle to support CoreXY. - Applied @EliteEng updates to Mega2560 support. Some pins were reconfigured. - Created a central step to position and vice versa function. Needed for non-traditional cartesian machines. Should make it easier later. - Removed the new CPU map for the Uno. No longer going to used. There will be only one configuration to keep things uniform.
70 lines
2.0 KiB
C
70 lines
2.0 KiB
C
/*
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serial.c - Low level functions for sending and recieving bytes via the serial port
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Part of Grbl v0.9
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Copyright (c) 2012-2015 Sungeun K. Jeon
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Grbl is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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Grbl is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with Grbl. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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This file is based on work from Grbl v0.8, distributed under the
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terms of the MIT-license. See COPYING for more details.
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Copyright (c) 2009-2011 Simen Svale Skogsrud
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Copyright (c) 2011-2012 Sungeun K. Jeon
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*/
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#ifndef serial_h
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#define serial_h
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#ifndef RX_BUFFER_SIZE
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#define RX_BUFFER_SIZE 128
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#endif
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#ifndef TX_BUFFER_SIZE
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#define TX_BUFFER_SIZE 64
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#endif
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#define SERIAL_NO_DATA 0xff
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#ifdef ENABLE_XONXOFF
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#define RX_BUFFER_FULL 96 // XOFF high watermark
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#define RX_BUFFER_LOW 64 // XON low watermark
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#define SEND_XOFF 1
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#define SEND_XON 2
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#define XOFF_SENT 3
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#define XON_SENT 4
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#define XOFF_CHAR 0x13
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#define XON_CHAR 0x11
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#endif
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void serial_init();
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// Writes one byte to the TX serial buffer. Called by main program.
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void serial_write(uint8_t data);
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// Fetches the first byte in the serial read buffer. Called by main program.
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uint8_t serial_read();
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// Reset and empty data in read buffer. Used by e-stop and reset.
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void serial_reset_read_buffer();
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// Returns the number of bytes used in the RX serial buffer.
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uint8_t serial_get_rx_buffer_count();
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// Returns the number of bytes used in the TX serial buffer.
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// NOTE: Not used except for debugging and ensuring no TX bottlenecks.
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uint8_t serial_get_tx_buffer_count();
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#endif
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