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state: track ramp in 100ths of %s

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embr 2023-05-02 01:05:01 +02:00
parent c8f83cbc5f
commit e7129abc6a
2 changed files with 7 additions and 11 deletions
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13
src/state.c
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@ -8,11 +8,12 @@
static int pwm_slice = 0;
uint8_t current_power = 0;
uint8_t target_power = 0;
// Note: These are all in % of a %, eg. 100% = 10000.
uint16_t current_power = 0;
uint16_t target_power = 0;
#define RAMP_PERIOD_MS 1
#define RAMP_STEP 2
#define RAMP_STEP 200
// Timer and callback for ramping power. Jumping ~50% power or more in one go kills the
// chip with electrical ripples, so be a bit gentle about it.
@ -26,8 +27,8 @@ static void ramp_timer_callback(struct btstack_timer_source* ts) {
} else {
current_power = target_power;
}
pwm_set_chan_level(pwm_slice, PWM_CHAN_A, current_power);
pwm_set_chan_level(pwm_slice, PWM_CHAN_B, current_power);
pwm_set_chan_level(pwm_slice, PWM_CHAN_A, current_power / 100);
pwm_set_chan_level(pwm_slice, PWM_CHAN_B, current_power / 100);
}
btstack_run_loop_set_timer(ts, RAMP_PERIOD_MS);
@ -52,5 +53,5 @@ void state_set_power(uint8_t power) {
if (power > 100) {
power = 100;
}
target_power = power;
target_power = power * 100;
}

5
src/state.h
View file

@ -3,11 +3,6 @@
#include <stdint.h>
// Current power level, 0-100.
extern uint8_t current_power;
// Target power level (that we're ramping to), 0-100.
extern uint8_t target_power;
// Initialize wand state.
void state_init();