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Move LED strip initialization (#397)

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Eric Tang 2016-06-12 15:01:55 -07:00 • committed by Jack Humbert
parent 92759be322
commit 6955719075
6 changed files with 18 additions and 33 deletions
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17
keyboard/preonic/preonic.c
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@ -20,11 +20,6 @@ void matrix_init_kb(void) {
backlight_init_ports();
#endif
#ifdef RGBLIGHT_ENABLE
rgblight_init();
#endif
// Turn status LED on
DDRE |= (1<<6);
PORTE |= (1<<6);
@ -49,20 +44,20 @@ void backlight_init_ports()
// Setup PB7 as output and output low.
DDRB |= (1<<7);
PORTB &= ~(1<<7);
// Use full 16-bit resolution.
// Use full 16-bit resolution.
ICR1 = 0xFFFF;
// I could write a wall of text here to explain... but TL;DW
// Go read the ATmega32u4 datasheet.
// And this: http://blog.saikoled.com/post/43165849837/secret-konami-cheat-code-to-high-resolution-pwm-on
// Pin PB7 = OCR1C (Timer 1, Channel C)
// Compare Output Mode = Clear on compare match, Channel C = COM1C1=1 COM1C0=0
// (i.e. start high, go low when counter matches.)
// WGM Mode 14 (Fast PWM) = WGM13=1 WGM12=1 WGM11=1 WGM10=0
// Clock Select = clk/1 (no prescaling) = CS12=0 CS11=0 CS10=1
TCCR1A = _BV(COM1C1) | _BV(WGM11); // = 0b00001010;
TCCR1B = _BV(WGM13) | _BV(WGM12) | _BV(CS10); // = 0b00011001;
@ -88,7 +83,7 @@ void backlight_set(uint8_t level)
// Set the brightness
CHANNEL = 0xFFFF;
}
else
else
{
// Prevent backlight blink on lowest level
PORTB &= ~(_BV(PORTB7));
@ -99,4 +94,4 @@ void backlight_set(uint8_t level)
}
}
#endif
#endif