diff options
Diffstat (limited to 'hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h')
| -rw-r--r-- | hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h | 34 |
1 files changed, 11 insertions, 23 deletions
diff --git a/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h index d030516..d83aa46 100644 --- a/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h +++ b/hw/thefreeman/boost21-mp3431-hdr-dac-argb/hwdef.h @@ -57,26 +57,16 @@ enum CHANNEL_MODES { #define CHANNEL_MODES_ENABLED 0b0000000000000001 -#define PWM_CHANNELS 1 // old, remove this - #define PWM_BITS 8 // 8-bit DAC -#define PWM_GET PWM_GET8 #define PWM_DATATYPE uint8_t #define PWM_DATATYPE2 uint16_t // only needs 32-bit if ramp values go over 255 #define PWM1_DATATYPE uint8_t // main LED ramp +#define PWM1_GET(l) PWM_GET8(pwm1_levels, l) +#define PWM2_DATATYPE uint8_t // DAC Vref table +#define PWM2_GET(l) PWM_GET8(pwm2_levels, l) // main LED outputs -#define DAC_LVL DAC0.DATA // 0 to 255, for 0V to Vref -#define DAC_VREF VREF.CTRLA // 0.55V or 2.5V -#define PWM_TOP_INIT 255 // highest value used in top half of ramp (unused?) -// Vref values -// (1.1V ADC + variable DAC) -#define V05 V055 -#define V055 (VREF_ADC0REFSEL_1V1_gc|VREF_DAC0REFSEL_0V55_gc) -#define V11 (VREF_ADC0REFSEL_1V1_gc|VREF_DAC0REFSEL_1V1_gc) -#define V25 (VREF_ADC0REFSEL_1V1_gc|VREF_DAC0REFSEL_2V5_gc) -#define V43 (VREF_ADC0REFSEL_1V1_gc|VREF_DAC0REFSEL_4V34_gc) -#define V15 (VREF_ADC0REFSEL_1V1_gc|VREF_DAC0REFSEL_1V5_gc) +// (DAC_LVL + DAC_VREF + Vref values are defined in arch/*.h) // BST enable #define BST_ENABLE_PIN PIN0_bp @@ -125,10 +115,9 @@ enum CHANNEL_MODES { inline void hwdef_setup() { - // TODO: for this DAC controlled-light, try to decrease the clock speed or use the ULP - // set up the system clock to run at 10 MHz to match other attiny1616 lights - _PROTECTED_WRITE( CLKCTRL.MCLKCTRLB, - CLKCTRL_PDIV_2X_gc | CLKCTRL_PEN_bm ); + // TODO: for this DAC controlled-light, try to decrease the clock speed + // to reduce overall system power + mcu_clock_speed(); VPORTA.DIR = PIN6_bm; // DAC VPORTB.DIR = PIN1_bm // R @@ -165,11 +154,10 @@ inline void hwdef_setup() { // set up the DAC // https://ww1.microchip.com/downloads/en/DeviceDoc/ATtiny1614-16-17-DataSheet-DS40002204A.pdf // DAC ranges from 0V to (255 * Vref) / 256 - // also VREF_DAC0REFSEL_0V55_gc and VREF_DAC0REFSEL_1V1_gc and VREF_DAC0REFSEL_2V5_gc - VREF.CTRLA |= VREF_DAC0REFSEL_2V5_gc; - VREF.CTRLB |= VREF_DAC0REFEN_bm; - DAC0.CTRLA = DAC_ENABLE_bm | DAC_OUTEN_bm; - DAC0.DATA = 255; // set the output voltage + mcu_set_dac_vref(V05); // boot at lowest Vref setting + VREF.CTRLB |= VREF_DAC0REFEN_bm; // enable DAC Vref + DAC0.CTRLA = DAC_ENABLE_bm | DAC_OUTEN_bm; // enable DAC + DAC_LVL = 0; // turn off output at boot } |