86 lines
3.0 KiB
C
86 lines
3.0 KiB
C
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/**
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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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