diff options
Diffstat (limited to 'pwm.c')
| -rw-r--r-- | pwm.c | 8 |
1 files changed, 4 insertions, 4 deletions
@@ -28,15 +28,15 @@ volatile uint16_t value_blue = 1024; void pwm_set_rgb(uint8_t r, uint8_t g, uint8_t b) { - value_red = r << 4; - value_green = g << 4; - value_blue = b << 4; + value_red = (uint16_t)r * r >> 4; + value_green = (uint16_t)g * g >> 4; + value_blue = (uint16_t)b * b >> 4; } void pwm_tick(void) { for (uint16_t i = 0; i < 4096; i++) { - // this should take about the same time for each iteration, regardless of pulse width + /* this should take about the same time for each iteration, regardless of pulse width */ PORTA= (PORTA & ~((1<<PA0)|(1<<PA1)|(1<<PA2))) | (value_red > i? (1<<PA0): 0) | (value_green > i? (1<<PA1): 0) | |