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stmbl/shared/comps/uvw.c
2017-10-29 22:42:31 +01:00

78 lines
1.8 KiB
C

#include "commands.h"
#include "hal.h"
#include "math.h"
#include "defines.h"
#include "angle.h"
HAL_COMP(uvw);
//u,v,w inputs
HAL_PIN(u);
HAL_PIN(v);
HAL_PIN(w);
HAL_PIN(led);
HAL_PIN(p0);
HAL_PIN(p1);
HAL_PIN(p2);
HAL_PIN(p3);
HAL_PIN(p4);
HAL_PIN(p5);
HAL_PIN(p6);
HAL_PIN(p7);
//rotor position output
HAL_PIN(pos);
HAL_PIN(rpos);
HAL_PIN(state);
static void nrt_init(volatile void *ctx_ptr, volatile hal_pin_inst_t *pin_ptr) {
// struct uvw_ctx_t * ctx = (struct io_ctx_t *)ctx_ptr;
struct uvw_pin_ctx_t *pins = (struct uvw_pin_ctx_t *)pin_ptr;
PIN(p0) = 0; //fault
PIN(p1) = 0; //u = 0
PIN(p2) = 2; //v = 2.094395
PIN(p3) = 1; //u + v = 1.047198
PIN(p4) = 4; //w = -2.094395
PIN(p5) = 5; //u + w = -1.047198
PIN(p6) = 3; //v + w = -3.141593
PIN(p7) = 0; //fault
PIN(state) = 3.0;
}
static void rt_func(float period, volatile void *ctx_ptr, volatile hal_pin_inst_t *pin_ptr) {
// struct uvw_ctx_t * ctx = (struct uvw_ctx_t *)ctx_ptr;
struct uvw_pin_ctx_t *pins = (struct uvw_pin_ctx_t *)pin_ptr;
uint32_t rpos = (PIN(u) > 0.0) * 1.0 + (PIN(v) > 0.0) * 2.0 + (PIN(w) > 0.0) * 4.0;
PIN(led) = (PIN(u) > 0.0) ^ (PIN(v) > 0.0) ^ (PIN(w) > 0.0);
//TODO: make this const, fault output
uint32_t t[8];
t[0] = PIN(p0);
t[1] = PIN(p1);
t[2] = PIN(p2);
t[3] = PIN(p3);
t[4] = PIN(p4);
t[5] = PIN(p5);
t[6] = PIN(p6);
t[7] = PIN(p7);
PIN(rpos) = rpos;
PIN(pos) = mod((float)t[rpos] / 6.0 * 2.0 * M_PI);
}
hal_comp_t uvw_comp_struct = {
.name = "uvw",
.nrt = 0,
.rt = rt_func,
.frt = 0,
.nrt_init = nrt_init,
.rt_start = 0,
.frt_start = 0,
.rt_stop = 0,
.frt_stop = 0,
.ctx_size = 0,
.pin_count = sizeof(struct uvw_pin_ctx_t) / sizeof(struct hal_pin_inst_t),
};