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Max7219_Debug_LEDs.h
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Max7219_Debug_LEDs.h
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/**
* Marlin 3D Printer Firmware
* Copyright (C) 2016 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 <http://www.gnu.org/licenses/>.
*
*/
/**
* This module is normally not enabled and does not generate any code. But it
* can be enabled to facilitate the display of extra debug information during
* code development. It assumes the existance of a Max7219 LED Matrix. You
* can get one on eBay similar to this: http://www.ebay.com/itm/191781645249
* for under $2.00 including shipping.
*
* Just connect up +5v and Gnd to give it power. And then 3 wires declared in the
* #define's below. Actual pin assignments can be changed in MAX7219_DEBUG section
* of configuration_adv.h
*
* You first call Max7219_init() and then you have 3 support functions available
* to control the LED's in the 8x8 grid.
*
* void Max7219_init();
* void Max7219_PutByte(uint8_t data);
* void Max7219(uint8_t reg, uint8_t data);
* void Max7219_LED_On( int8_t row, int8_t col);
* void Max7219_LED_Off( int8_t row, int8_t col);
* void Max7219_LED_Toggle( int8_t row, int8_t col);
* void Max7219_Clear_Row( int8_t row);
* void Max7219_Clear_Column( int8_t col);
* void Max7219_Set_Row( int8_t row, int8_t val);
* void Max7219_Set_Column( int8_t column, int8_t val);
* void Max7219_idle_tasks();
*/
#if ENABLED(MAX7219_DEBUG)
//
// define max7219 registers
//
#define max7219_reg_noop 0x00
#define max7219_reg_digit0 0x01
#define max7219_reg_digit1 0x02
#define max7219_reg_digit2 0x03
#define max7219_reg_digit3 0x04
#define max7219_reg_digit4 0x05
#define max7219_reg_digit5 0x06
#define max7219_reg_digit6 0x07
#define max7219_reg_digit7 0x08
#define max7219_reg_intensity 0x0a
#define max7219_reg_displayTest 0x0f
#define max7219_reg_decodeMode 0x09
#define max7219_reg_scanLimit 0x0b
#define max7219_reg_shutdown 0x0c
void Max7219_init();
void Max7219_PutByte(uint8_t data);
void Max7219(uint8_t reg, uint8_t data);
void Max7219_LED_On( int8_t row, int8_t col);
void Max7219_LED_Off( int8_t row, int8_t col);
void Max7219_LED_Toggle( int8_t row, int8_t col);
void Max7219_Clear_Row( int8_t row);
void Max7219_Clear_Column( int8_t col);
void Max7219_Set_Row( int8_t row, uint8_t val);
void Max7219_Set_Column( int8_t col, uint8_t val);
void Max7219_idle_tasks();
#endif