From 3d12b7066d27b591e0283e20ed066bc66e29fbe4 Mon Sep 17 00:00:00 2001 From: Selene ToyKeeper Date: Fri, 10 Nov 2023 21:34:40 -0700 Subject: refactor checkpoint: splitting MCU-specific code into arch/$MCU.[ch] Phew, that's a lot of changes! And there's still a lot more to do... --- hw/thefreeman/lin16dac/hwdef.h | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) (limited to 'hw/thefreeman/lin16dac/hwdef.h') diff --git a/hw/thefreeman/lin16dac/hwdef.h b/hw/thefreeman/lin16dac/hwdef.h index 2066d04..dc4377a 100644 --- a/hw/thefreeman/lin16dac/hwdef.h +++ b/hw/thefreeman/lin16dac/hwdef.h @@ -12,9 +12,7 @@ * Read voltage from VCC pin, has PFET so no drop */ -#include - -#define HWDEF_C_FILE thefreeman/lin16dac/hwdef.c +#define HWDEF_C thefreeman/lin16dac/hwdef.c // allow using aux LEDs as extra channel modes #include "fsm/chan-aux.h" -- cgit v1.2.3 From 8c237206aba74f9096d85f90209ac6b7dc238b1b Mon Sep 17 00:00:00 2001 From: Selene ToyKeeper Date: Fri, 24 Nov 2023 06:29:56 -0700 Subject: more ADC / DAC / MCU progress... - fixed t1616 Vref values getting clobbered sometimes, wrapped setting those in a #define'd function for ease and consistency - moved some DAC definitions from hw/ to arch/ to reduce repetition - fixed thefreeman's other builds - switched from PWM_TOPS to PWM2_LEVELS (I'm trying to phase out _TOPS) --- hw/thefreeman/lin16dac/hwdef.h | 33 +++++++++++---------------------- 1 file changed, 11 insertions(+), 22 deletions(-) (limited to 'hw/thefreeman/lin16dac/hwdef.h') diff --git a/hw/thefreeman/lin16dac/hwdef.h b/hw/thefreeman/lin16dac/hwdef.h index dc4377a..a68d9c2 100644 --- a/hw/thefreeman/lin16dac/hwdef.h +++ b/hw/thefreeman/lin16dac/hwdef.h @@ -32,24 +32,16 @@ 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 -#define V055 16 -#define V11 17 -#define V25 18 -#define V43 19 -#define V15 20 +// (DAC_LVL + DAC_VREF + Vref values are defined in arch/*.h) // Opamp enable // For turning on and off the op-amp @@ -84,11 +76,9 @@ enum CHANNEL_MODES { inline void hwdef_setup() { - // set up the system clock to run at 10 MHz instead of the default 3.33 MHz - // (it'll get underclocked to 2.5 MHz later) - // TODO: maybe run even slower? - _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 | PIN7_bm; // Opamp @@ -121,11 +111,10 @@ 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 } -- cgit v1.2.3