2 #include <avr/pgmspace.h>
8 #define CLK_HI() (PORTD |= (1<<0))
9 #define CLK_LO() (PORTD &= ~(1<<0))
10 #define STATE() (PIND & (1<<1))
11 #define RST_HI() (PORTD |= (1<<3))
12 #define RST_LO() (PORTD &= ~(1<<3))
13 #define SENSE() (PIND & (1<<2))
15 static matrix_row_t matrix[8] = {};
18 void matrix_init(void)
21 debug_keyboard = true;
24 // PD0:Clock PD1:State PD2:Sense_All PD3:Reset(Scan_All)
25 DDRD = (1<<3) | (1<<0);
26 PORTD = (1<<2) | (1<<1);
31 uint8_t matrix_scan(void)
34 // Scan_all resets counter
37 // TODO: cannot get reliable value from SENSE()
38 //uint8_t s = SENSE() | STATE();
39 //if (!SENSE()) return 0; // no activated key
44 // 8x8 matrix: row:sense, col:drive, key_on:hi
45 for (uint8_t col = 0; col < 8; col++) {
46 for (uint8_t row = 0; row < 8; row++) {
51 matrix[row] |= (1<<col);
53 matrix[row] &= ~(1<<col);
56 // clock lo - next row
64 matrix_row_t matrix_get_row(uint8_t row)
69 void led_set(uint8_t usb_led)