3f0b38ed5d
* Add Max7219 LED Matrix Debug Support The Max7219 8x8 LED Matrix's are very helpful for debugging new code. And for that matter, just trying to maximize printer settings without causing stuttering. The displays are very inexpensive (under $2.00 with shipping) and provide a lot of help when trying to debug complicated code. * Try to keep Makefile up to date.
85 lines
3 KiB
C
85 lines
3 KiB
C
/**
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* Marlin 3D Printer Firmware
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* Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
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*
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* Based on Sprinter and grbl.
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* Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
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*
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* This program 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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*
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* This program 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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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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/**
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* This module is normally not enabled and does not generate any code. But it
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* can be enabled to facilitate the display of extra debug information during
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* code development. It assumes the existance of a Max7219 LED Matrix. You
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* can get one on eBay similar to this: http://www.ebay.com/itm/191781645249
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* for under $2.00 including shipping.
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*
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* Just connect up +5v and Gnd to give it power. And then 3 wires declared in the
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* #define's below. Actual pin assignments can be changed in MAX7219_DEBUG section
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* of configuration_adv.h
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*
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* You first call Max7219_init() and then you have 3 support functions available
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* to control the LED's in the 8x8 grid.
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*
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* void Max7219_init();
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* void Max7219_PutByte(uint8_t data);
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* void Max7219(uint8_t reg, uint8_t data);
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* void Max7219_LED_On( int8_t row, int8_t col);
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* void Max7219_LED_Off( int8_t row, int8_t col);
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* void Max7219_LED_Toggle( int8_t row, int8_t col);
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* void Max7219_Clear_Row( int8_t row);
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* void Max7219_Clear_Column( int8_t col);
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* void Max7219_Set_Row( int8_t row, int8_t val);
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* void Max7219_Set_Column( int8_t column, int8_t val);
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* void Max7219_idle_tasks();
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*/
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#if ENABLED(MAX7219_DEBUG)
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//
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// define max7219 registers
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//
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#define max7219_reg_noop 0x00
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#define max7219_reg_digit0 0x01
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#define max7219_reg_digit1 0x02
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#define max7219_reg_digit2 0x03
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#define max7219_reg_digit3 0x04
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#define max7219_reg_digit4 0x05
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#define max7219_reg_digit5 0x06
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#define max7219_reg_digit6 0x07
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#define max7219_reg_digit7 0x08
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#define max7219_reg_intensity 0x0a
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#define max7219_reg_displayTest 0x0f
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#define max7219_reg_decodeMode 0x09
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#define max7219_reg_scanLimit 0x0b
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#define max7219_reg_shutdown 0x0c
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void Max7219_init();
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void Max7219_PutByte(uint8_t data);
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void Max7219(uint8_t reg, uint8_t data);
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void Max7219_LED_On( int8_t row, int8_t col);
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void Max7219_LED_Off( int8_t row, int8_t col);
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void Max7219_LED_Toggle( int8_t row, int8_t col);
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void Max7219_Clear_Row( int8_t row);
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void Max7219_Clear_Column( int8_t col);
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void Max7219_Set_Row( int8_t row, uint8_t val);
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void Max7219_Set_Column( int8_t col, uint8_t val);
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void Max7219_idle_tasks();
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#endif
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