Optimize matrix scanning (#343)
This commit is contained in:
Eric Tang
Jack Humbert
parent
d66aa0abf9
commit
aaa758f1d3
21 changed files with 421 additions and 518 deletions
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@ -1,70 +1,74 @@
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#ifndef CONFIG_DEFINITIONS_H
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#define CONFIG_DEFINITIONS_H
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#define B0 0x20
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#define B1 0x21
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#define B2 0x22
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#define B3 0x23
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#define B4 0x24
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#define B5 0x25
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#define B6 0x26
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#define B7 0x27
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#define C0 0x30
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#define C1 0x31
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#define C2 0x32
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#define C3 0x33
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#define C4 0x34
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#define C5 0x35
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#define C6 0x36
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#define C7 0x37
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#define D0 0x40
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#define D1 0x41
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#define D2 0x42
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#define D3 0x43
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#define D4 0x44
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#define D5 0x45
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#define D6 0x46
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#define D7 0x47
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#define E0 0x50
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#define E1 0x51
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#define E2 0x52
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#define E3 0x53
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#define E4 0x54
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#define E5 0x55
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#define E6 0x56
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#define E7 0x57
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#define F0 0x60
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#define F1 0x61
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#define F2 0x62
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#define F3 0x63
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#define F4 0x64
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#define F5 0x65
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#define F6 0x66
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#define F7 0x67
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#define COL2ROW 0x0
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#define ROW2COL 0x1
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/* diode directions */
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#define COL2ROW 0
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#define ROW2COL 1
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/* I/O pins */
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#define B0 { .input_addr = 3, .bit = 0 }
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#define B1 { .input_addr = 3, .bit = 1 }
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#define B2 { .input_addr = 3, .bit = 2 }
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#define B3 { .input_addr = 3, .bit = 3 }
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#define B4 { .input_addr = 3, .bit = 4 }
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#define B5 { .input_addr = 3, .bit = 5 }
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#define B6 { .input_addr = 3, .bit = 6 }
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#define B7 { .input_addr = 3, .bit = 7 }
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#define C0 { .input_addr = 6, .bit = 0 }
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#define C1 { .input_addr = 6, .bit = 1 }
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#define C2 { .input_addr = 6, .bit = 2 }
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#define C3 { .input_addr = 6, .bit = 3 }
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#define C4 { .input_addr = 6, .bit = 4 }
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#define C5 { .input_addr = 6, .bit = 5 }
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#define C6 { .input_addr = 6, .bit = 6 }
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#define C7 { .input_addr = 6, .bit = 7 }
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#define D0 { .input_addr = 9, .bit = 0 }
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#define D1 { .input_addr = 9, .bit = 1 }
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#define D2 { .input_addr = 9, .bit = 2 }
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#define D3 { .input_addr = 9, .bit = 3 }
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#define D4 { .input_addr = 9, .bit = 4 }
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#define D5 { .input_addr = 9, .bit = 5 }
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#define D6 { .input_addr = 9, .bit = 6 }
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#define D7 { .input_addr = 9, .bit = 7 }
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#define E0 { .input_addr = 0xC, .bit = 0 }
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#define E1 { .input_addr = 0xC, .bit = 1 }
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#define E2 { .input_addr = 0xC, .bit = 2 }
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#define E3 { .input_addr = 0xC, .bit = 3 }
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#define E4 { .input_addr = 0xC, .bit = 4 }
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#define E5 { .input_addr = 0xC, .bit = 5 }
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#define E6 { .input_addr = 0xC, .bit = 6 }
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#define E7 { .input_addr = 0xC, .bit = 7 }
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#define F0 { .input_addr = 0xF, .bit = 0 }
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#define F1 { .input_addr = 0xF, .bit = 1 }
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#define F2 { .input_addr = 0xF, .bit = 2 }
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#define F3 { .input_addr = 0xF, .bit = 3 }
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#define F4 { .input_addr = 0xF, .bit = 4 }
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#define F5 { .input_addr = 0xF, .bit = 5 }
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#define F6 { .input_addr = 0xF, .bit = 6 }
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#define F7 { .input_addr = 0xF, .bit = 7 }
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/* USART configuration */
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#ifdef BLUETOOTH_ENABLE
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#ifdef __AVR_ATmega32U4__
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#define SERIAL_UART_BAUD 9600
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#define SERIAL_UART_DATA UDR1
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#define SERIAL_UART_UBRR ((F_CPU/(16UL*SERIAL_UART_BAUD))-1)
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#define SERIAL_UART_RXD_VECT USART1_RX_vect
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#define SERIAL_UART_TXD_READY (UCSR1A&(1<<UDRE1))
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#define SERIAL_UART_INIT() do { \
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UBRR1L = (uint8_t) SERIAL_UART_UBRR; /* baud rate */ \
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UBRR1H = (uint8_t) (SERIAL_UART_UBRR>>8); /* baud rate */ \
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UCSR1B = (1<<TXEN1); /* TX: enable */ \
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UCSR1C = (0<<UPM11) | (0<<UPM10) | /* parity: none(00), even(01), odd(11) */ \
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(0<<UCSZ12) | (1<<UCSZ11) | (1<<UCSZ10); /* data-8bit(011) */ \
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sei(); \
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} while(0)
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#else
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# error "USART configuration is needed."
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# ifdef __AVR_ATmega32U4__
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# define SERIAL_UART_BAUD 9600
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# define SERIAL_UART_DATA UDR1
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# define SERIAL_UART_UBRR (F_CPU / (16UL * SERIAL_UART_BAUD) - 1)
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# define SERIAL_UART_RXD_VECT USART1_RX_vect
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# define SERIAL_UART_TXD_READY (UCSR1A & _BV(UDRE1))
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# define SERIAL_UART_INIT() do { \
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/* baud rate */ \
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UBRR1L = SERIAL_UART_UBRR; \
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/* baud rate */ \
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UBRR1H = SERIAL_UART_UBRR >> 8; \
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/* enable TX */ \
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UCSR1B = _BV(TXEN1); \
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/* 8-bit data */ \
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UCSR1C = _BV(UCSZ11) | _BV(UCSZ10); \
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sei(); \
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} while(0)
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# else
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# error "USART configuration is needed."
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#endif
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// I'm fairly sure these aren't needed, but oh well - Jack
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/*
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@ -113,4 +117,3 @@
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#endif
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#endif
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393
quantum/matrix.c
393
quantum/matrix.c
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@ -1,6 +1,6 @@
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/*
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Copyright 2012 Jun Wako
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Generated by planckkeyboard.com (2014 Jack Humbert)
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Copyright 2012 Jun Wako
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Copyright 2014 Jack Humbert
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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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@ -15,300 +15,211 @@ 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 this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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/*
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* scan matrix
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*/
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#include <stdint.h>
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#include <stdbool.h>
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#include <avr/io.h>
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#include <util/delay.h>
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#include "wait.h"
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#include "print.h"
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#include "debug.h"
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#include "util.h"
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#include "matrix.h"
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#ifndef DEBOUNCE
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# define DEBOUNCE 10
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#ifdef MATRIX_HAS_GHOST
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# error "The universal matrix.c file cannot be used for this keyboard."
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#endif
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static uint8_t debouncing = DEBOUNCE;
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/* matrix state(1:on, 0:off) */
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#ifndef DEBOUNCING_DELAY
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# define DEBOUNCING_DELAY 5
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#endif
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static const io_pin_t row_pins[MATRIX_ROWS] = MATRIX_ROW_PINS;
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static const io_pin_t col_pins[MATRIX_COLS] = MATRIX_COL_PINS;
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/* matrix state */
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#if DIODE_DIRECTION == COL2ROW
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static matrix_row_t matrix[MATRIX_ROWS];
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static matrix_row_t matrix_debouncing[MATRIX_ROWS];
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#if DIODE_DIRECTION == ROW2COL
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static matrix_row_t matrix_reversed[MATRIX_COLS];
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static matrix_row_t matrix_reversed_debouncing[MATRIX_COLS];
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#endif
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#if MATRIX_COLS > 16
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#define SHIFTER 1UL
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static matrix_row_t debouncing_matrix[MATRIX_ROWS];
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#else
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#define SHIFTER 1
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static matrix_col_t matrix[MATRIX_COLS];
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static matrix_col_t debouncing_matrix[MATRIX_COLS];
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#endif
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static int8_t debouncing_delay = -1;
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#if DIODE_DIRECTION == COL2ROW
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static void toggle_row(uint8_t row);
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static matrix_row_t read_cols(void);
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static void init_cols(void);
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static void unselect_rows(void);
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static void select_row(uint8_t row);
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#else
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static void toggle_col(uint8_t col);
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static matrix_col_t read_rows(void);
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#endif
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__attribute__ ((weak))
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void matrix_init_quantum(void) {
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}
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__attribute__ ((weak))
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void matrix_scan_quantum(void) {
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}
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inline
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uint8_t matrix_rows(void)
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{
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uint8_t matrix_rows(void) {
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return MATRIX_ROWS;
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}
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inline
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uint8_t matrix_cols(void)
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{
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uint8_t matrix_cols(void) {
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return MATRIX_COLS;
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}
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void matrix_init(void)
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{
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// To use PORTF disable JTAG with writing JTD bit twice within four cycles.
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MCUCR |= (1<<JTD);
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MCUCR |= (1<<JTD);
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// initialize row and col
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unselect_rows();
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init_cols();
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// initialize matrix state: all keys off
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for (uint8_t i=0; i < MATRIX_ROWS; i++) {
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matrix[i] = 0;
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matrix_debouncing[i] = 0;
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void matrix_init(void) {
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/* frees PORTF by setting the JTD bit twice within four cycles */
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MCUCR |= _BV(JTD);
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MCUCR |= _BV(JTD);
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/* initializes the I/O pins */
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#if DIODE_DIRECTION == COL2ROW
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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/* DDRxn */
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_SFR_IO8(row_pins[r].input_addr + 1) |= _BV(row_pins[r].bit);
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toggle_row(r);
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}
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
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/* PORTxn */
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_SFR_IO8(col_pins[c].input_addr + 2) |= _BV(col_pins[c].bit);
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}
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#else
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
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/* DDRxn */
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_SFR_IO8(col_pins[c].input_addr + 1) |= _BV(col_pins[c].bit);
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toggle_col(c);
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}
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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/* PORTxn */
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_SFR_IO8(row_pins[r].input_addr + 2) |= _BV(row_pins[r].bit);
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}
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#endif
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matrix_init_quantum();
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}
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uint8_t matrix_scan(void)
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{
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#if DIODE_DIRECTION == COL2ROW
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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select_row(i);
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_delay_us(30); // without this wait read unstable value.
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matrix_row_t cols = read_cols();
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if (matrix_debouncing[i] != cols) {
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matrix_debouncing[i] = cols;
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if (debouncing) {
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debug("bounce!: "); debug_hex(debouncing); debug("\n");
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}
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debouncing = DEBOUNCE;
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uint8_t matrix_scan(void) {
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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toggle_row(r);
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matrix_row_t state = read_cols();
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if (debouncing_matrix[r] != state) {
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debouncing_matrix[r] = state;
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debouncing_delay = DEBOUNCING_DELAY;
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}
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unselect_rows();
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toggle_row(r);
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}
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if (debouncing) {
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if (--debouncing) {
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_delay_ms(1);
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} else {
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for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
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matrix[i] = matrix_debouncing[i];
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if (debouncing_delay >= 0) {
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dprintf("Debouncing delay remaining: %X\n", debouncing_delay);
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--debouncing_delay;
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if (debouncing_delay >= 0) {
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wait_ms(1);
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}
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else {
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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matrix[r] = debouncing_matrix[r];
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}
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}
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}
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#else
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for (uint8_t i = 0; i < MATRIX_COLS; i++) {
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select_row(i);
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_delay_us(30); // without this wait read unstable value.
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matrix_row_t rows = read_cols();
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if (matrix_reversed_debouncing[i] != rows) {
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matrix_reversed_debouncing[i] = rows;
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if (debouncing) {
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debug("bounce!: "); debug_hex(debouncing); debug("\n");
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}
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debouncing = DEBOUNCE;
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}
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unselect_rows();
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}
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if (debouncing) {
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if (--debouncing) {
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_delay_ms(1);
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} else {
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for (uint8_t i = 0; i < MATRIX_COLS; i++) {
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matrix_reversed[i] = matrix_reversed_debouncing[i];
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}
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}
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}
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for (uint8_t y = 0; y < MATRIX_ROWS; y++) {
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matrix_row_t row = 0;
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for (uint8_t x = 0; x < MATRIX_COLS; x++) {
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row |= ((matrix_reversed[x] & (1<<y)) >> y) << x;
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}
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matrix[y] = row;
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}
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#endif
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matrix_scan_quantum();
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return 1;
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}
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bool matrix_is_modified(void)
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{
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if (debouncing) return false;
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return true;
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static void toggle_row(uint8_t row) {
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/* PINxn */
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_SFR_IO8(row_pins[row].input_addr) = _BV(row_pins[row].bit);
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}
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inline
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bool matrix_is_on(uint8_t row, uint8_t col)
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{
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return (matrix[row] & ((matrix_row_t)1<col));
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static matrix_row_t read_cols(void) {
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matrix_row_t state = 0;
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
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/* PINxn */
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if (!(_SFR_IO8(col_pins[c].input_addr) & _BV(col_pins[c].bit))) {
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state |= (matrix_row_t)1 << c;
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}
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}
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return state;
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}
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inline
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matrix_row_t matrix_get_row(uint8_t row)
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{
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matrix_row_t matrix_get_row(uint8_t row) {
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return matrix[row];
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}
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void matrix_print(void)
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{
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print("\nr/c 0123456789ABCDEF\n");
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for (uint8_t row = 0; row < MATRIX_ROWS; row++) {
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phex(row); print(": ");
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pbin_reverse16(matrix_get_row(row));
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print("\n");
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#else
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uint8_t matrix_scan(void) {
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
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toggle_col(c);
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matrix_col_t state = read_rows();
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if (debouncing_matrix[c] != state) {
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debouncing_matrix[c] = state;
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debouncing_delay = DEBOUNCING_DELAY;
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}
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toggle_col(c);
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}
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if (debouncing_delay >= 0) {
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dprintf("Debouncing delay remaining: %X\n", debouncing_delay);
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--debouncing_delay;
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if (debouncing_delay >= 0) {
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wait_ms(1);
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}
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else {
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for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
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matrix[c] = debouncing_matrix[c];
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}
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}
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}
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matrix_scan_quantum();
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return 1;
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}
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static void toggle_col(uint8_t col) {
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/* PINxn */
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_SFR_IO8(col_pins[col].input_addr) = _BV(col_pins[col].bit);
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}
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static matrix_col_t read_rows(void) {
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matrix_col_t state = 0;
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for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
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/* PINxn */
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if (!(_SFR_IO8(row_pins[r].input_addr) & _BV(row_pins[r].bit))) {
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state |= (matrix_col_t)1 << r;
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}
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}
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return state;
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}
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||||
|
||||
matrix_row_t matrix_get_row(uint8_t row) {
|
||||
matrix_row_t state = 0;
|
||||
matrix_col_t mask = (matrix_col_t)1 << row;
|
||||
for (int8_t c = MATRIX_COLS - 1; c >= 0; --c) {
|
||||
if (matrix[c] & mask) {
|
||||
state |= (matrix_row_t)1 << c;
|
||||
}
|
||||
}
|
||||
return state;
|
||||
}
|
||||
|
||||
#endif
|
||||
|
||||
bool matrix_is_modified(void) {
|
||||
if (debouncing_delay >= 0) return false;
|
||||
return true;
|
||||
}
|
||||
|
||||
bool matrix_is_on(uint8_t row, uint8_t col) {
|
||||
return matrix_get_row(row) & (matrix_row_t)1 << col;
|
||||
}
|
||||
|
||||
void matrix_print(void) {
|
||||
dprintln("Human-readable matrix state:");
|
||||
for (uint8_t r = 0; r < MATRIX_ROWS; r++) {
|
||||
dprintf("State of row %X: %016b\n", r, bitrev16(matrix_get_row(r)));
|
||||
}
|
||||
}
|
||||
|
||||
uint8_t matrix_key_count(void)
|
||||
{
|
||||
uint8_t matrix_key_count(void) {
|
||||
uint8_t count = 0;
|
||||
for (uint8_t i = 0; i < MATRIX_ROWS; i++) {
|
||||
count += bitpop16(matrix[i]);
|
||||
for (int8_t r = MATRIX_ROWS - 1; r >= 0; --r) {
|
||||
count += bitpop16(matrix_get_row(r));
|
||||
}
|
||||
return count;
|
||||
}
|
||||
|
||||
static void init_cols(void)
|
||||
{
|
||||
int B = 0, C = 0, D = 0, E = 0, F = 0;
|
||||
|
||||
#if DIODE_DIRECTION == COL2ROW
|
||||
for(int x = 0; x < MATRIX_COLS; x++) {
|
||||
int col = COLS[x];
|
||||
#else
|
||||
for(int x = 0; x < MATRIX_ROWS; x++) {
|
||||
int col = ROWS[x];
|
||||
#endif
|
||||
if ((col & 0xF0) == 0x20) {
|
||||
B |= (1<<(col & 0x0F));
|
||||
} else if ((col & 0xF0) == 0x30) {
|
||||
C |= (1<<(col & 0x0F));
|
||||
} else if ((col & 0xF0) == 0x40) {
|
||||
D |= (1<<(col & 0x0F));
|
||||
} else if ((col & 0xF0) == 0x50) {
|
||||
E |= (1<<(col & 0x0F));
|
||||
} else if ((col & 0xF0) == 0x60) {
|
||||
F |= (1<<(col & 0x0F));
|
||||
}
|
||||
}
|
||||
DDRB &= ~(B); PORTB |= (B);
|
||||
DDRC &= ~(C); PORTC |= (C);
|
||||
DDRD &= ~(D); PORTD |= (D);
|
||||
DDRE &= ~(E); PORTE |= (E);
|
||||
DDRF &= ~(F); PORTF |= (F);
|
||||
}
|
||||
|
||||
static matrix_row_t read_cols(void)
|
||||
{
|
||||
matrix_row_t result = 0;
|
||||
|
||||
#if DIODE_DIRECTION == COL2ROW
|
||||
for(int x = 0; x < MATRIX_COLS; x++) {
|
||||
int col = COLS[x];
|
||||
#else
|
||||
for(int x = 0; x < MATRIX_ROWS; x++) {
|
||||
int col = ROWS[x];
|
||||
#endif
|
||||
|
||||
if ((col & 0xF0) == 0x20) {
|
||||
result |= (PINB&(1<<(col & 0x0F)) ? 0 : (SHIFTER<<x));
|
||||
} else if ((col & 0xF0) == 0x30) {
|
||||
result |= (PINC&(1<<(col & 0x0F)) ? 0 : (SHIFTER<<x));
|
||||
} else if ((col & 0xF0) == 0x40) {
|
||||
result |= (PIND&(1<<(col & 0x0F)) ? 0 : (SHIFTER<<x));
|
||||
} else if ((col & 0xF0) == 0x50) {
|
||||
result |= (PINE&(1<<(col & 0x0F)) ? 0 : (SHIFTER<<x));
|
||||
} else if ((col & 0xF0) == 0x60) {
|
||||
result |= (PINF&(1<<(col & 0x0F)) ? 0 : (SHIFTER<<x));
|
||||
}
|
||||
}
|
||||
return result;
|
||||
}
|
||||
|
||||
static void unselect_rows(void)
|
||||
{
|
||||
int B = 0, C = 0, D = 0, E = 0, F = 0;
|
||||
|
||||
#if DIODE_DIRECTION == COL2ROW
|
||||
for(int x = 0; x < MATRIX_ROWS; x++) {
|
||||
int row = ROWS[x];
|
||||
#else
|
||||
for(int x = 0; x < MATRIX_COLS; x++) {
|
||||
int row = COLS[x];
|
||||
#endif
|
||||
if ((row & 0xF0) == 0x20) {
|
||||
B |= (1<<(row & 0x0F));
|
||||
} else if ((row & 0xF0) == 0x30) {
|
||||
C |= (1<<(row & 0x0F));
|
||||
} else if ((row & 0xF0) == 0x40) {
|
||||
D |= (1<<(row & 0x0F));
|
||||
} else if ((row & 0xF0) == 0x50) {
|
||||
E |= (1<<(row & 0x0F));
|
||||
} else if ((row & 0xF0) == 0x60) {
|
||||
F |= (1<<(row & 0x0F));
|
||||
}
|
||||
}
|
||||
DDRB &= ~(B); PORTB |= (B);
|
||||
DDRC &= ~(C); PORTC |= (C);
|
||||
DDRD &= ~(D); PORTD |= (D);
|
||||
DDRE &= ~(E); PORTE |= (E);
|
||||
DDRF &= ~(F); PORTF |= (F);
|
||||
}
|
||||
|
||||
static void select_row(uint8_t row)
|
||||
{
|
||||
|
||||
#if DIODE_DIRECTION == COL2ROW
|
||||
int row_pin = ROWS[row];
|
||||
#else
|
||||
int row_pin = COLS[row];
|
||||
#endif
|
||||
|
||||
if ((row_pin & 0xF0) == 0x20) {
|
||||
DDRB |= (1<<(row_pin & 0x0F));
|
||||
PORTB &= ~(1<<(row_pin & 0x0F));
|
||||
} else if ((row_pin & 0xF0) == 0x30) {
|
||||
DDRC |= (1<<(row_pin & 0x0F));
|
||||
PORTC &= ~(1<<(row_pin & 0x0F));
|
||||
} else if ((row_pin & 0xF0) == 0x40) {
|
||||
DDRD |= (1<<(row_pin & 0x0F));
|
||||
PORTD &= ~(1<<(row_pin & 0x0F));
|
||||
} else if ((row_pin & 0xF0) == 0x50) {
|
||||
DDRE |= (1<<(row_pin & 0x0F));
|
||||
PORTE &= ~(1<<(row_pin & 0x0F));
|
||||
} else if ((row_pin & 0xF0) == 0x60) {
|
||||
DDRF |= (1<<(row_pin & 0x0F));
|
||||
PORTF &= ~(1<<(row_pin & 0x0F));
|
||||
}
|
||||
}
|
||||
|
|
@ -41,15 +41,16 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|||
* DIODE_DIRECTION: COL2ROW = COL = Anode (+), ROW = Cathode (-, marked on diode)
|
||||
* ROW2COL = ROW = Anode (+), COL = Cathode (-, marked on diode)
|
||||
*
|
||||
*/
|
||||
#define COLS (int []){ F1, F0, B0 }
|
||||
#define ROWS (int []){ D0, D5 }
|
||||
*/
|
||||
#define MATRIX_ROW_PINS { D0, D5 }
|
||||
#define MATRIX_COL_PINS { F1, F0, B0 }
|
||||
#define UNUSED_PINS
|
||||
|
||||
/* COL2ROW or ROW2COL */
|
||||
#define DIODE_DIRECTION COL2ROW
|
||||
|
||||
/* Debounce reduces chatter (unintended double-presses) - set 0 if debouncing is not needed */
|
||||
#define DEBOUNCE 5
|
||||
#define DEBOUNCING_DELAY 5
|
||||
|
||||
/* define if matrix has ghost (lacks anti-ghosting diodes) */
|
||||
//#define MATRIX_HAS_GHOST
|
||||
|
|
@ -62,17 +63,17 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|||
/* Locking resynchronize hack */
|
||||
#define LOCKING_RESYNC_ENABLE
|
||||
|
||||
/*
|
||||
/*
|
||||
* Force NKRO
|
||||
*
|
||||
* Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
|
||||
* Force NKRO (nKey Rollover) to be enabled by default, regardless of the saved
|
||||
* state in the bootmagic EEPROM settings. (Note that NKRO must be enabled in the
|
||||
* makefile for this to work.)
|
||||
*
|
||||
* If forced on, NKRO can be disabled via magic key (default = LShift+RShift+N)
|
||||
* until the next keyboard reset.
|
||||
*
|
||||
* NKRO may prevent your keystrokes from being detected in the BIOS, but it is
|
||||
* NKRO may prevent your keystrokes from being detected in the BIOS, but it is
|
||||
* fully operational during normal computer usage.
|
||||
*
|
||||
* For a less heavy-handed approach, enable NKRO via magic key (LShift+RShift+N)
|
||||
|
|
@ -90,7 +91,7 @@ along with this program. If not, see <http://www.gnu.org/licenses/>.
|
|||
* the keyboard. They are best used in combination with the HID Listen program,
|
||||
* found here: https://www.pjrc.com/teensy/hid_listen.html
|
||||
*
|
||||
* The options below allow the magic key functionality to be changed. This is
|
||||
* The options below allow the magic key functionality to be changed. This is
|
||||
* useful if your keyboard/keypad is missing keys and you want magic key support.
|
||||
*
|
||||
*/
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue