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pdsp.c
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/** @file pdsp.c
*
* @author Falk Kyburz
* @brief Power electronics digital signal processing module.
*
* @copyright
* This is free and unencumbered software released into the public domain.
*
* Anyone is free to copy, modify, publish, use, compile, sell, or
* distribute this software, either in source code form or as a compiled
* binary, for any purpose, commercial or non-commercial, and by any
* means.
*
* In jurisdictions that recognize copyright laws, the author or authors
* of this software dedicate any and all copyright interest in the
* software to the public domain. We make this dedication for the benefit
* of the public at large and to the detriment of our heirs and
* successors. We intend this dedication to be an overt act of
* relinquishment in perpetuity of all present and future rights to this
* software under copyright law.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
* IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* For more information, please refer to <https://unlicense.org>
*/
/*==============================================================================
INCLUDE FILES
=============================================================================*/
#include "pdsp.h"
#include "pdsp_assert.h"
#include "pdsp_cfg.h"
#include "pdsp_types.h"
#include <math.h>
#include <stdbool.h>
#include <stddef.h>
/*==============================================================================
GLOBAL CONSTANTS
=============================================================================*/
#ifdef PDSP_ASSERT_LIST
static pdsp_char_t *pdsp_assert_filename = "pdsp.c";
#endif
static const pdsp_u16_t pdsp_mask_i16[16] = {
0x0001, 0x0003, 0x0007, 0x000F, 0x001F, 0x003F, 0x007F, 0x00FF,
0x01FF, 0x03FF, 0x07FF, 0x0FFF, 0x1FFF, 0x3FFF, 0x7FFF, 0xFFFF};
static pdsp_char_t pdsp_base16_map[16] = {'0', '1', '2', '3', '4', '5',
'6', '7', '8', '9', 'A', 'B',
'C', 'D', 'E', 'F'};
static pdsp_char_t pdsp_base64_map[64] = {
'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H', 'I', 'J', 'K', 'L', 'M',
'N', 'O', 'P', 'Q', 'R', 'S', 'T', 'U', 'V', 'W', 'X', 'Y', 'Z',
'a', 'b', 'c', 'd', 'e', 'f', 'g', 'h', 'i', 'j', 'k', 'l', 'm',
'n', 'o', 'p', 'q', 'r', 's', 't', 'u', 'v', 'w', 'x', 'y', 'z',
'0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '+', '/'};
/*==============================================================================
PRIVATE FUNCTION PROTOTYPES
=============================================================================*/
/*==============================================================================
PRIVATE FUNCTION PROTOTYPES
=============================================================================*/
/*==============================================================================
GLOBAL FUNCTION
=============================================================================*/
/*-----------------------------------------------------------------------------
UTIL
-----------------------------------------------------------------------------*/
pdsp_extern void pdsp_stopwatch_start(const pdsp_stopwatch_t *ps_data,
pdsp_u32_t u32_hw_now)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->ps_var->u32_time_mem = u32_hw_now;
}
pdsp_extern pdsp_u32_t pdsp_stopwatch_stop(const pdsp_stopwatch_t *ps_data,
pdsp_u32_t u32_hw_now)
{
PDSP_ASSERT((ps_data != NULL) && (ps_data->ps_var != NULL));
if (ps_data->ps_var->u32_time_mem < u32_hw_now)
{
return u32_hw_now - ps_data->ps_var->u32_time_mem;
}
else
{
return u32_hw_now - ps_data->ps_var->u32_time_mem + ps_data->u32_hw_max;
}
}
pdsp_extern pdsp_i16_t pdsp_call_i16_func(const pdsp_pi16_func_t apf_list[],
pdsp_size_t s_size,
pdsp_u16_t u16_idx,
pdsp_i16_t *i16_out)
{
PDSP_ASSERT((apf_list != NULL) && (i16_out != NULL) && s_size);
if ((apf_list[u16_idx] != PDSP_NULL) && (u16_idx < s_size))
{
*i16_out = apf_list[u16_idx]();
return PDSP_OK;
}
return PDSP_ILLEGAL;
}
/* TODO */
pdsp_extern pdsp_char_t *pdsp_srec_encode(pdsp_char_t *ac_start,
pdsp_srec_t *ps_data)
{
PDSP_ASSERT((ac_start != NULL) && (ps_data != NULL));
// pdsp_u16_t checksum = 0;
// pdsp_u16_t data_idx = 0;
// if (ps_data->e_type == PDSP_SREC_S0_HEADER)
// {
// PDSP_ASSERT(ps_data->u32_address == 0);
// (*ac_start++) = 'S';
// (*ac_start++) = '0';
// (*ac_start++) = '0';
// (*ac_start++) = '0';
// (*ac_start++) = '0';
// (*ac_start++) = '0';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S1_DATA16)
// {
// (*ac_start++) = 'S';
// (*ac_start++) = '1';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S2_DATA24)
// {
// (*ac_start++) = 'S';
// (*ac_start++) = '2';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S3_DATA32)
// {
// (*ac_start++) = 'S';
// (*ac_start++) = '3';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S5_COUNT16)
// {
// (*ac_start++) = 'S';
// (*ac_start++) = '5';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S6_COUNT32)
// {
// (*ac_start++) = 'S';
// (*ac_start++) = '6';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S7_TERM16)
// {
// PDSP_ASSERT(ps_data->u16_size == 0);
// (*ac_start++) = 'S';
// (*ac_start++) = '7';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S8_TERM24)
// {
// PDSP_ASSERT(ps_data->u16_size == 0);
// (*ac_start++) = 'S';
// (*ac_start++) = '8';
// return ac_start;
// }
// else if (ps_data->e_type == PDSP_SREC_S9_TERM32)
// {
// PDSP_ASSERT(ps_data->u16_size == 0);
// (*ac_start++) = 'S';
// (*ac_start++) = '9';
// return ac_start;
// }
// else
// {
// return ac_start;
// }
return ac_start;
}
pdsp_extern pdsp_char_t *pdsp_i16_to_string(pdsp_i16_t i16_in,
pdsp_char_t *a6c_out)
{
pdsp_i16_t idx = 5;
pdsp_i16_t rem = 0;
pdsp_bool_t neg = PDSP_FALSE;
PDSP_ASSERT(a6c_out != NULL);
/* Clamp to -32767 */
if (i16_in == -32768)
{
i16_in = -32767;
}
/* Handle negative numbers. */
if (i16_in < 0)
{
i16_in = -i16_in;
neg = PDSP_TRUE;
}
/* Handle 0. */
if (i16_in == 0)
{
a6c_out[idx--] = '0';
a6c_out[idx--] = ' ';
a6c_out[idx--] = ' ';
a6c_out[idx--] = ' ';
a6c_out[idx--] = ' ';
a6c_out[idx--] = ' ';
}
else
{
/* Convert digits */
while (idx >= 0)
{
if (i16_in != 0)
{
rem = i16_in % 10;
a6c_out[idx--] = rem + '0';
i16_in = i16_in / 10;
}
else
{
if (neg)
{
a6c_out[idx--] = '-';
neg = PDSP_FALSE;
}
else
{
a6c_out[idx--] = ' ';
}
}
}
}
return &a6c_out[6];
}
pdsp_extern pdsp_char_t *
pdsp_u8_to_base16(pdsp_char_t *dest, const pdsp_u8_t *src, size_t size_src)
{
PDSP_ASSERT((dest != NULL) && (src != NULL));
for (; size_src > 0; size_src--)
{
*dest++ = pdsp_base16_map[(((*src) >> 4) & 0xF)];
*dest++ = pdsp_base16_map[((*src++) & 0xF)];
}
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u16_to_base16(pdsp_char_t *dest, pdsp_u16_t src)
{
PDSP_ASSERT(dest != NULL);
*dest++ = pdsp_base16_map[((src >> 12) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 8) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 4) & 0xF)];
*dest++ = pdsp_base16_map[(src & 0xF)];
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u32_to_base16(pdsp_char_t *dest, pdsp_u32_t src)
{
PDSP_ASSERT(dest != NULL);
*dest++ = pdsp_base16_map[((src >> 28) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 24) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 20) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 16) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 12) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 8) & 0xF)];
*dest++ = pdsp_base16_map[((src >> 4) & 0xF)];
*dest++ = pdsp_base16_map[(src & 0xF)];
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u64_to_base16(pdsp_char_t *dest, pdsp_u64_t src)
{
PDSP_ASSERT(dest != NULL);
dest = pdsp_u32_to_base16(dest, (src >> 32) & 0xFFFFFFFF);
dest = pdsp_u32_to_base16(dest, src & 0xFFFFFFFF);
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u16_to_base64(pdsp_char_t *dest, pdsp_u16_t src)
{
PDSP_ASSERT(dest != NULL);
*dest++ = pdsp_base64_map[((src >> 10) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 4) & 0x3F)];
*dest++ = pdsp_base64_map[((src << 2) & 0x3F)];
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u32_to_base64(pdsp_char_t *dest, pdsp_u32_t src)
{
PDSP_ASSERT(dest != NULL);
*dest++ = pdsp_base64_map[((src >> 26) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 20) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 14) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 8) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 2) & 0x3F)];
*dest++ = pdsp_base64_map[((src << 4) & 0x3F)];
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u64_to_base64(pdsp_char_t *dest, pdsp_u64_t src)
{
PDSP_ASSERT(dest != NULL);
*dest++ = pdsp_base64_map[((src >> 58) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 52) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 46) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 40) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 34) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 28) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 22) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 16) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 10) & 0x3F)];
*dest++ = pdsp_base64_map[((src >> 4) & 0x3F)];
*dest++ = pdsp_base64_map[((src << 2) & 0x3F)];
return dest;
}
pdsp_extern pdsp_char_t *pdsp_u16_to_base16_alt(pdsp_u16_t u16_in,
pdsp_char_t *ach_out,
pdsp_bool_t b_len4)
{
static pdsp_char_t ch_nibble;
PDSP_ASSERT(ach_out != NULL);
if (b_len4 | (u16_in > 0xFFF))
{
/* First digit (left to right). Hint: 'A' - 10 = '7' */
ch_nibble = (pdsp_char_t)((u16_in >> 12) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
/* Second digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 8) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
/* Third digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 4) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
/* Fourth digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 0) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
return ach_out;
}
if (u16_in > 0xFF)
{
/* First digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 8) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
/* Second digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 4) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
/* Third digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 0) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
return ach_out;
}
if (u16_in > 0xF)
{
/* First digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 4) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
/* Second digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 0) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
return ach_out;
}
/* Single digit (left to right) */
ch_nibble = (pdsp_char_t)((u16_in >> 0) & 0xf);
*(ach_out++) = ch_nibble + ((ch_nibble > 9) ? '7' : '0');
return ach_out;
}
pdsp_extern pdsp_char_t *pdsp_u64_to_base16_alt(pdsp_u64_t u64_in,
pdsp_char_t *ach_out)
{
PDSP_ASSERT(ach_out != NULL);
ach_out = pdsp_u16_to_base16_alt((pdsp_u16_t)((u64_in >> 48) & 0xFFFF),
ach_out, PDSP_TRUE);
ach_out = pdsp_u16_to_base16_alt((pdsp_u16_t)((u64_in >> 32) & 0xFFFF),
ach_out, PDSP_TRUE);
ach_out = pdsp_u16_to_base16_alt((pdsp_u16_t)((u64_in >> 16) & 0xFFFF),
ach_out, PDSP_TRUE);
ach_out = pdsp_u16_to_base16_alt((pdsp_u16_t)((u64_in >> 0) & 0xFFFF),
ach_out, PDSP_TRUE);
return ach_out;
}
pdsp_extern pdsp_f32_t pdsp_map(pdsp_f32_t f32_in, pdsp_f32_t f32_in_lo,
pdsp_f32_t f32_in_hi, pdsp_f32_t f32_out_lo,
pdsp_f32_t f32_out_hi)
{
if ((f32_in_hi - f32_in_lo) == 0.0f)
{
return (f32_out_hi + f32_out_lo) * 0.5f;
}
else
{
return (pdsp_divf((f32_out_hi - f32_out_lo), (f32_in_hi - f32_in_lo)) *
(f32_in - f32_in_lo) +
f32_out_lo);
}
}
pdsp_extern pdsp_u16_t pdsp_map_idx(pdsp_f32_t f32_in, pdsp_f32_t f32_in_lo,
pdsp_f32_t f32_in_hi, pdsp_f32_t f32_idx_hi)
{
pdsp_f32_t f32_index;
f32_in = pdsp_minf(pdsp_maxf(f32_in, f32_in_lo), f32_in_hi);
if ((f32_in_hi - f32_in_lo) == 0.0f)
{
f32_index = f32_idx_hi * 0.5f;
}
else
{
f32_index =
pdsp_divf(f32_idx_hi, f32_in_hi - f32_in_lo) * (f32_in - f32_in_lo);
}
/* Float to int conversion is implementation specific. */
#if defined(F32_TO_INT_ROUNDS_TO_NEAREST)
return (pdsp_u16_t)(f32_index - 0.5);
#elif defined(F32_TO_INT_ROUNDS_TOWARDS_ZERO)
return (pdsp_u16_t)(f32_index);
#endif
}
pdsp_extern pdsp_f32_t pdsp_interpolate_2d(const pdsp_f32_t af32_x[],
const pdsp_f32_t af32_y[],
pdsp_u32_t u32_size,
pdsp_f32_t f32_x_in)
{
/* Index of higher array element. */
pdsp_u32_t u32_idx_hi = 1U;
/* Validate inputs. */
PDSP_ASSERT((af32_x != NULL) && (af32_y != NULL) && u32_size);
/* Find the higher array index >= 1. */
while ((af32_x[u32_idx_hi] < f32_x_in) && (u32_idx_hi < (u32_size - 1U)))
{
u32_idx_hi++;
}
/* Calculate the output. */
return pdsp_map(f32_x_in, af32_x[u32_idx_hi - 1U], af32_x[u32_idx_hi],
af32_y[u32_idx_hi - 1U], af32_y[u32_idx_hi]);
}
pdsp_extern pdsp_f32_t pdsp_lookup(const pdsp_f32_t af32_y[],
pdsp_f32_t f32_size,
pdsp_f32_t f32_x_gain,
pdsp_f32_t f32_x_offset,
pdsp_f32_t f32_x)
{
PDSP_ASSERT((af32_y != NULL) && f32_size);
return af32_y[(pdsp_i16_t)pdsp_maxf(pdsp_minf(f32_x * f32_x_gain + f32_x_offset, f32_size), 0)];
}
pdsp_extern void pdsp_array_set_f32(pdsp_f32_t af32_array[], pdsp_size_t s_size,
pdsp_f32_t f32_value)
{
pdsp_u32_t u32_idx = 0;
PDSP_ASSERT((af32_array != NULL) && s_size);
for (u32_idx = 0; u32_idx < s_size; u32_idx++)
{
af32_array[u32_idx] = f32_value;
}
}
pdsp_extern void pdsp_array_set_i16(pdsp_i16_t ai16_array[], pdsp_size_t s_size,
pdsp_i16_t i16_value)
{
pdsp_u32_t u32_idx = 0;
PDSP_ASSERT((ai16_array != NULL) && s_size);
for (u32_idx = 0; u32_idx < s_size; u32_idx++)
{
ai16_array[u32_idx] = i16_value;
}
}
pdsp_extern void pdsp_array_apply_f32(const pdsp_f32_t af32_in[],
pdsp_f32_t af32_out[],
pdsp_u32_t u32_size,
pdsp_f32_t p_func(pdsp_f32_t))
{
pdsp_u32_t u32_idx = 0;
PDSP_ASSERT((af32_in != NULL) && (af32_out != NULL) && u32_size &&
(p_func != NULL));
for (u32_idx = 0; u32_idx < u32_size; u32_idx++)
{
af32_out[u32_idx] = p_func(af32_in[u32_idx]);
}
}
pdsp_extern void pdsp_array_apply_i16(const pdsp_i16_t ai16_in[],
pdsp_i16_t ai16_out[],
pdsp_u32_t u32_size,
pdsp_i16_t p_func(pdsp_i16_t))
{
pdsp_u32_t u32_idx = 0;
PDSP_ASSERT((ai16_in != NULL) && (ai16_out != NULL) && u32_size &&
(p_func != NULL));
for (u32_idx = 0; u32_idx < u32_size; u32_idx++)
{
ai16_out[u32_idx] = p_func(ai16_in[u32_idx]);
}
}
pdsp_extern void pdsp_array_linspace_f32(pdsp_f32_t af32_out[],
pdsp_u32_t u32_size,
pdsp_f32_t f32_start,
pdsp_f32_t f32_end)
{
pdsp_u32_t u32_idx = 0;
PDSP_ASSERT((af32_out != NULL) && u32_size);
for (u32_idx = 0; u32_idx < u32_size; u32_idx++)
{
af32_out[u32_idx] =
pdsp_map((pdsp_f32_t)u32_idx, 0.0f, (pdsp_f32_t)u32_size - 1.0f,
f32_start, f32_end);
}
}
pdsp_extern void pdsp_array_logspace_f32(pdsp_f32_t af32_out[],
pdsp_u32_t u32_size,
pdsp_f32_t f32_start,
pdsp_f32_t f32_end)
{
pdsp_u32_t u32_idx = 0;
PDSP_ASSERT((af32_out != NULL) && u32_size);
for (u32_idx = 0; u32_idx < u32_size; u32_idx++)
{
af32_out[u32_idx] = powf(10.0f, pdsp_map((pdsp_f32_t)u32_idx, 0.0f,
(pdsp_f32_t)u32_size - 1.0f,
f32_start, f32_end));
}
}
pdsp_extern void pdsp_hysteresis_value_clear(pdsp_hyst_t *ps_data)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->b_state = PDSP_FALSE;
}
pdsp_extern void pdsp_hysteresis_value_init(pdsp_hyst_t *ps_data,
pdsp_f32_t f32_low,
pdsp_f32_t f32_high)
{
ps_data->b_state = PDSP_FALSE;
ps_data->f32_low = f32_low;
ps_data->f32_high = f32_high;
}
pdsp_extern pdsp_bool_t pdsp_hysteresis_value(pdsp_hyst_t *ps_data,
pdsp_f32_t f32_in)
{
PDSP_ASSERT(ps_data != NULL);
/* PDSP_FALSE or OFF state */
if (f32_in > ps_data->f32_high)
{
ps_data->b_state = PDSP_TRUE;
}
/* PDSP_TRUE or ON state */
else if (f32_in < ps_data->f32_low)
{
ps_data->b_state = PDSP_FALSE;
}
/* else: state does not change */
return ps_data->b_state;
}
pdsp_extern void pdsp_hysteresis_list_clear(pdsp_hyst_list_t *ps_data)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->u16_state = 0U;
}
pdsp_extern void pdsp_hysteresis_list_init(pdsp_hyst_list_t *ps_data,
pdsp_f32_t *af32_thres_up,
pdsp_f32_t *af32_thres_dn,
pdsp_u16_t u16_size)
{
ps_data->u16_state = 0U;
ps_data->af32_thres_up = af32_thres_up;
ps_data->af32_thres_dn = af32_thres_dn;
ps_data->u16_size = u16_size;
}
pdsp_extern pdsp_u16_t pdsp_hysteresis_list(pdsp_hyst_list_t *ps_data,
pdsp_f32_t f32_in)
{
PDSP_ASSERT(ps_data != NULL);
/* upper boundary breached --> */
if (f32_in > ps_data->af32_thres_up[ps_data->u16_state])
{
if (ps_data->u16_state < ps_data->u16_size - 2)
{
ps_data->u16_state++;
}
}
/* <-- lower boundary breached */
else if (f32_in < ps_data->af32_thres_dn[ps_data->u16_state])
{
if (ps_data->u16_state > 0U)
{
ps_data->u16_state--;
}
}
/* else: state does not change */
return ps_data->u16_state;
}
pdsp_extern void pdsp_debounce_clear(pdsp_debounce_t *ps_data)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->b_state = PDSP_FALSE;
ps_data->f32_time = 0.0f;
}
pdsp_extern pdsp_bool_t pdsp_debounce(pdsp_debounce_t *ps_data,
pdsp_bool_t b_in)
{
PDSP_ASSERT(ps_data != NULL);
/* PDSP_FALSE or OFF state */
if (!(ps_data->b_state) && b_in)
{
ps_data->f32_time += ps_data->f32_t_step;
if (ps_data->f32_time > ps_data->f32_t_high)
{
ps_data->b_state = PDSP_TRUE;
ps_data->f32_time = 0.0f;
}
}
/* PDSP_TRUE or ON state */
else if ((ps_data->b_state) && !b_in)
{
ps_data->f32_time += ps_data->f32_t_step;
if (ps_data->f32_time > ps_data->f32_t_low)
{
ps_data->b_state = PDSP_FALSE;
ps_data->f32_time = 0.0f;
}
}
/* PDSP_FALSE && !b_in || PDSP_TRUE && b_in */
else
{
ps_data->f32_time = 0.0f;
}
return ps_data->b_state;
}
pdsp_extern void pdsp_debounce_cnt_clear(pdsp_debounce_cnt_t *ps_data)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->b_state = PDSP_FALSE;
ps_data->u16_count = 0U;
}
pdsp_extern pdsp_bool_t pdsp_debounce_cnt(pdsp_debounce_cnt_t *ps_data,
pdsp_bool_t b_in)
{
PDSP_ASSERT(ps_data != NULL);
/* PDSP_FALSE or OFF state */
if (!(ps_data->b_state) && b_in)
{
ps_data->u16_count++;
if (ps_data->u16_count > ps_data->u16_cnt_high)
{
ps_data->b_state = PDSP_TRUE;
ps_data->u16_count = 0U;
}
}
/* PDSP_TRUE or ON state */
else if ((ps_data->b_state) && !b_in)
{
ps_data->u16_count++;
if (ps_data->u16_count > ps_data->u16_cnt_low)
{
ps_data->b_state = PDSP_FALSE;
ps_data->u16_count = 0U;
}
}
/* PDSP_FALSE && !b_in || PDSP_TRUE && b_in */
else
{
ps_data->u16_count = 0U;
}
return ps_data->b_state;
}
pdsp_extern void pdsp_robust_clear(pdsp_robust_t *ps_data)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->u16_state = 0U;
ps_data->f32_time = 0.0f;
}
pdsp_extern pdsp_u16_t pdsp_robust(pdsp_robust_t *ps_data, pdsp_f32_t f32_in)
{
PDSP_ASSERT(ps_data != NULL);
/* upper boundary breached --> */
if (f32_in > ps_data->af32_thres_up[ps_data->u16_state])
{
/* count up if below last state */
if (ps_data->u16_state < ps_data->u16_size - 1)
{
ps_data->f32_time += ps_data->f32_t_step;
}
/* upper debounce time elapsed */
if (ps_data->f32_time > ps_data->af32_time_up[ps_data->u16_state])
{
if (ps_data->u16_state < ps_data->u16_size - 1)
{
ps_data->u16_state++;
}
ps_data->f32_time = 0.0f;
}
}
/* <-- lower boundary breached */
else if (f32_in < ps_data->af32_thres_dn[ps_data->u16_state])
{
/* count up if above first state */
if (ps_data->u16_state > 0U)
{
ps_data->f32_time += ps_data->f32_t_step;
}
/* lower debounce time elapsed */
if (ps_data->f32_time > ps_data->af32_time_dn[ps_data->u16_state])
{
if (ps_data->u16_state > 0U)
{
ps_data->u16_state--;
}
ps_data->f32_time = 0.0f;
}
}
/* boundaries not breached */
else
{
ps_data->f32_time = 0.0f;
}
return ps_data->u16_state;
}
pdsp_extern void pdsp_backlash_init(pdsp_backlash_t *ps_data,
pdsp_f32_t f32_backlash_half,
pdsp_f32_t f32_state)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->f32_backlash_half = f32_backlash_half;
ps_data->f32_state = f32_state;
}
pdsp_extern pdsp_f32_t pdsp_backlash(pdsp_backlash_t *ps_data, pdsp_f32_t f32_in)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->f32_state = pdsp_maxf(ps_data->f32_state, f32_in - ps_data->f32_backlash_half);
ps_data->f32_state = pdsp_minf(ps_data->f32_state, f32_in + ps_data->f32_backlash_half);
return ps_data->f32_state;
}
pdsp_extern void pdsp_edge_delay_init(pdsp_edge_delay_t *ps_data,
pdsp_u16_t u16_state,
pdsp_u16_t u16_red_count,
pdsp_u16_t u16_fed_count)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->u16_state = u16_state;
ps_data->u16_count = 0;
ps_data->u16_red_count = u16_red_count;
ps_data->u16_fed_count = u16_fed_count;
}
pdsp_extern pdsp_u16_t pdsp_edge_delay(pdsp_edge_delay_t *ps_data,
pdsp_u16_t u16_in)
{
PDSP_ASSERT(ps_data != NULL);
/* rising edge detected */
if (u16_in > ps_data->u16_state)
{
if (ps_data->u16_count < ps_data->u16_red_count)
{
ps_data->u16_count++;
}
else
{
ps_data->u16_count = 0;
ps_data->u16_state = u16_in;
}
}
/* falling edge detected */
else if (u16_in < ps_data->u16_state)
{
if (ps_data->u16_count < ps_data->u16_fed_count)
{
ps_data->u16_count++;
}
else
{
ps_data->u16_count = 0;
ps_data->u16_state = u16_in;
}
}
else
{
ps_data->u16_count = 0;
}
return ps_data->u16_state;
}
pdsp_extern void pdsp_monoflop_init(pdsp_monoflop_t *ps_data,
pdsp_u16_t u16_duration,
pdsp_u16_t u16_state_off,
pdsp_u16_t u16_state_on)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->b_trig_mem = PDSP_FALSE;
ps_data->u16_count = 0;
ps_data->u16_duration = u16_duration;
ps_data->u16_state_off = u16_state_off;
ps_data->u16_state_on = u16_state_on;
}
pdsp_extern pdsp_u16_t pdsp_monoflop(pdsp_monoflop_t *ps_data,
pdsp_bool_t b_trig)
{
PDSP_ASSERT(ps_data != NULL);
if ((b_trig == PDSP_TRUE) && (ps_data->b_trig_mem == PDSP_FALSE) &&
(ps_data->u16_count == 0U))
{
ps_data->u16_count = ps_data->u16_duration;
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_on;
}
if (ps_data->u16_count > 0U)
{
ps_data->u16_count--;
}
if (ps_data->u16_count > 0U)
{
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_on;
}
else
{
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_off;
}
}
pdsp_extern pdsp_u16_t pdsp_monoflop_rtr(pdsp_monoflop_t *ps_data,
pdsp_bool_t b_trig)
{
PDSP_ASSERT(ps_data != NULL);
if ((b_trig == PDSP_TRUE) && (ps_data->b_trig_mem == PDSP_FALSE))
{
ps_data->u16_count = ps_data->u16_duration;
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_on;
}
if (ps_data->u16_count > 0U)
{
ps_data->u16_count--;
}
if (ps_data->u16_count > 0U)
{
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_on;
}
else
{
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_off;
}
}
pdsp_extern pdsp_u16_t pdsp_monoflop_rtr_det(pdsp_monoflop_t *ps_data,
pdsp_bool_t b_trig)
{
PDSP_ASSERT(ps_data != NULL);
if (b_trig != ps_data->b_trig_mem)
{
ps_data->u16_count = ps_data->u16_duration;
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_on;
}
if (ps_data->u16_count > 0U)
{
ps_data->u16_count--;
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_on;
}
else
{
ps_data->b_trig_mem = b_trig;
return ps_data->u16_state_off;
}
}
pdsp_extern void pdsp_pulse_init(pdsp_pulse_t *ps_data, pdsp_u16_t u16_count_on,
pdsp_u16_t u16_count_per,
pdsp_u16_t u16_state_on,
pdsp_u16_t u16_state_off)
{
PDSP_ASSERT(ps_data != NULL);
ps_data->u16_count = 0;
ps_data->u16_count_on = u16_count_on;
ps_data->u16_count_per = u16_count_per;
ps_data->u16_state_on = u16_state_on;
ps_data->u16_state_off = u16_state_off;
}
pdsp_extern pdsp_u16_t pdsp_pulse(pdsp_pulse_t *ps_data)
{
PDSP_ASSERT(ps_data != NULL);
if (ps_data->u16_count < ps_data->u16_count_on)
{
ps_data->u16_count++;
return ps_data->u16_state_on;
}
else
{
ps_data->u16_count++;
if (ps_data->u16_count >= ps_data->u16_count_per)
{
ps_data->u16_count = 0;
}
return ps_data->u16_state_off;
}
}
pdsp_extern void pdsp_bit_write_u16(pdsp_u16_t *pu16_mem, pdsp_u16_t u16_bit,
pdsp_bool_t b_value)
{
PDSP_ASSERT((pu16_mem != NULL) && (u16_bit < 16));
if (b_value)
{
*pu16_mem |= (1 << u16_bit);
}
else
{
*pu16_mem &= ~(1 << u16_bit);
}
}
pdsp_extern void pdsp_bit_write_u32(pdsp_u32_t *pu32_mem, pdsp_u16_t u16_bit,
pdsp_bool_t b_value)
{
PDSP_ASSERT((pu32_mem != NULL) && (u16_bit < 32));
if (b_value)
{
*pu32_mem |= (1 << u16_bit);
}
else
{
*pu32_mem &= ~(1 << u16_bit);
}
}
pdsp_extern pdsp_bool_t pdsp_bit_read_u16(const pdsp_u16_t *pu16_mem,
pdsp_u16_t u16_bit)
{
PDSP_ASSERT((pu16_mem != NULL) && (u16_bit < 16));
return (pdsp_bool_t)((*pu16_mem >> u16_bit) & 1U);
}
pdsp_extern pdsp_bool_t pdsp_bit_read_u32(const pdsp_u32_t *pu32_mem,
pdsp_u16_t u16_bit)
{
PDSP_ASSERT((pu32_mem != NULL) && (u16_bit < 32));
return (pdsp_bool_t)((*pu32_mem >> u16_bit) & 1U);
}
pdsp_extern void pdsp_mask_set(pdsp_u32_t *pu32_mem, pdsp_u32_t u32_mask)
{
PDSP_ASSERT(pu32_mem != NULL);
(*pu32_mem) |= u32_mask;
}
pdsp_extern void pdsp_mask_clear(pdsp_u32_t *pu32_mem, pdsp_u32_t u32_mask)
{
PDSP_ASSERT(pu32_mem != NULL);
(*pu32_mem) &= ~u32_mask;
}
pdsp_extern pdsp_bool_t pdsp_mask_get(pdsp_u32_t *pu32_mem,
pdsp_u32_t u32_mask_true,
pdsp_u32_t u32_mask_false)
{