d21e06a201
- Increment to v1.1b due to status report tweak. - Tweaked the buffer state status reports to show bytes and blocks available, rather than in use. This does not require knowing the buffer sizes beforehand. It’s implicit. - Also, since buffer states are not used by most devs (after inquiries), it is no longer enabled by default and a status mask option was added for this. - Fixed some typos and updated for the report tweak in the documentation. - Wrote a joystick implementation concept in the jogging markdown document. Outlines how to get a low-latency feel to a joystick (and other input devices). - Removed XON/XOFF support. It’s not used by anyone because of its inherent problems. Remains in older versions for reference. - Added a compile option on how to handle the probe position during a check mode. - Fixed a jogging bug. If G93 is the modal state before a jogging motion, the feed rate did not get calculated correctly. Fixed the issue. - Refactored some code to save another 160+ bytes. Included an improved float vector comparison macro and reducing a few large and repetitive function calls. - Fixed a probing bug (existing in v0.9 too) where the target positions were not set correct and error handling was improper.
63 lines
1.8 KiB
C
63 lines
1.8 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
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Copyright (c) 2011-2016 Sungeun K. Jeon for Gnea Research LLC
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Copyright (c) 2009-2011 Simen Svale Skogsrud
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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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#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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#ifdef USE_LINE_NUMBERS
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#define TX_BUFFER_SIZE 100
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#else
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#define TX_BUFFER_SIZE 90
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#endif
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#endif
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#define SERIAL_NO_DATA 0xff
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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 available in the RX serial buffer.
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uint8_t serial_get_rx_buffer_available();
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// Returns the number of bytes used in the RX serial buffer.
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// NOTE: Deprecated. Not used unless classic status reports are enabled in config.h.
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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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