stmbl/shared/comps/ac.c

40 lines
816 B
C

#include "comps/ac_comp.h"
#include "hal.h"
HAL_COMP(ac);
HAL_PIN(in);
HAL_PIN(ac);
HAL_PIN(out);
struct ac_ctx_t {
float avg;
};
static void rt_func(float period, void *ctx_ptr, hal_pin_inst_t *pin_ptr) {
struct ac_ctx_t *ctx = (struct ac_ctx_t *)ctx_ptr;
struct ac_pin_ctx_t *pins = (struct ac_pin_ctx_t *)pin_ptr;
float i = PIN(in);
float a = PIN(ac);
ctx->avg = i * a + ctx->avg * (1 - a);
PIN(out) = i - ctx->avg;
}
const hal_comp_t ac_comp_struct = {
.name = "ac",
.nrt = 0,
.rt = rt_func,
.frt = 0,
.nrt_init = 0,
.hw_init = 0,
.rt_start = 0,
.frt_start = 0,
.rt_stop = 0,
.frt_stop = 0,
.ctx_size = sizeof(struct ac_ctx_t),
.pin_count = sizeof(struct ac_pin_ctx_t) / sizeof(struct hal_pin_inst_t),
};