Update for Atomic PCB Rev 0
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efe8304e79
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#include <avr/io.h>
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#include "backlight.h"
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#define CHANNEL OCR1C
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void backlight_init_ports()
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{
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// Setup PB7 as output and output low.
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DDRB |= (1<<7);
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PORTB &= ~(1<<7);
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// Use full 16-bit resolution.
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ICR1 = 0xFFFF;
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// I could write a wall of text here to explain... but TL;DW
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// Go read the ATmega32u4 datasheet.
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// And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
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// Pin PB7 = OCR1C (Timer 1, Channel C)
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// Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
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// (i.e. start high, go low when counter matches.)
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// WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
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// Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
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TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
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TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
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backlight_init();
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}
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void backlight_set(uint8_t level)
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{
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if ( level == 0 )
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{
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// Turn off PWM control on PB7, revert to output low.
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TCCR1A &= ~(_BV(COM1C1));
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// CHANNEL = level << OFFSET | 0x0FFF;
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CHANNEL = ((1 << level) - 1);
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}
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else
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{
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// Turn on PWM control of PB7
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TCCR1A |= _BV(COM1C1);
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// CHANNEL = level << OFFSET | 0x0FFF;
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CHANNEL = ((1 << level) - 1);
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}
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}
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@ -0,0 +1,40 @@
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#include "keymap_common.h"
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// GRD: Grid layout
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const uint8_t PROGMEM keymaps[][MATRIX_ROWS][MATRIX_COLS] = {
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[0] = KEYMAP_GRD(FN29, FN30, FN31, 3, 4, 5, 6, 7, 8, 9, 0, MINS, EQL, BSLS, GRV, \
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TAB, Q, W, E, R, T, Y, U, I, O, P, LBRC, RBRC, BSPC, DEL, \
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CAPS, A, S, D, F, G, H, J, K, L, SCLN, QUOT, ENT, ENT, PGUP, \
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LSFT, Z, X, C, V, B, N, M, COMM, DOT, SLSH, RSFT, RSFT, UP, PGDN, \
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LCTL, LALT, LGUI, SPC, SPC, SPC, SPC, SPC, SPC, RALT, APP, RCTL, LEFT, DOWN, RGHT), \
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};
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const uint16_t PROGMEM fn_actions[] = {
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[1] = ACTION_LAYER_MOMENTARY(2), // to Fn overlay
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[3] = ACTION_DEFAULT_LAYER_SET(0),
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[4] = ACTION_DEFAULT_LAYER_SET(1),
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[9] = ACTION_MODS_KEY(MOD_LSFT | MOD_RSFT, KC_PAUSE),
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[10] = ACTION_MODS_KEY(MOD_LSFT, KC_1),
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[11] = ACTION_MODS_KEY(MOD_LSFT, KC_2),
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[12] = ACTION_MODS_KEY(MOD_LSFT, KC_3),
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[13] = ACTION_MODS_KEY(MOD_LSFT, KC_4),
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[14] = ACTION_MODS_KEY(MOD_LSFT, KC_5),
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[15] = ACTION_MODS_KEY(MOD_LSFT, KC_6),
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[16] = ACTION_MODS_KEY(MOD_LSFT, KC_7),
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[17] = ACTION_MODS_KEY(MOD_LSFT, KC_8),
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[18] = ACTION_MODS_KEY(MOD_LSFT, KC_9),
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[19] = ACTION_MODS_KEY(MOD_LSFT, KC_0),
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[20] = ACTION_MODS_KEY(MOD_LSFT, KC_MINS),
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[21] = ACTION_MODS_KEY(MOD_LSFT, KC_EQL),
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[22] = ACTION_MODS_KEY(MOD_LSFT, KC_GRV),
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[23] = ACTION_MODS_KEY(MOD_LSFT, KC_LBRC),
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[24] = ACTION_MODS_KEY(MOD_LSFT, KC_RBRC),
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[28] = ACTION_MODS_KEY(MOD_LSFT, KC_BSLS),
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[29] = ACTION_BACKLIGHT_TOGGLE(),
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[30] = ACTION_BACKLIGHT_INCREASE(),
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[31] = ACTION_BACKLIGHT_DECREASE()
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};
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