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feat(hal_utils): added float to fixed point function

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laokaiyao
2024-06-01 01:48:40 +08:00
committed by Kevin (Lao Kaiyao)
parent cabf41c1c6
commit 4b08ddb0f3
4 changed files with 189 additions and 0 deletions
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1
components/hal/test_apps/hal_utils/main/CMakeLists.txt
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@@ -1,4 +1,5 @@
idf_component_register(SRCS "test_app_main.c"
"test_fmt_convert.c"
"test_calc_clk_div.c"
"test_hal_utils_misc.c"
INCLUDE_DIRS "."

94
components/hal/test_apps/hal_utils/main/test_fmt_convert.c Normal file
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@@ -0,0 +1,94 @@
/*
* SPDX-FileCopyrightText: 2023-2024 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <stdio.h>
#include <math.h>
#include "unity.h"
#include "hal/hal_utils.h"
#ifndef BIT
#define BIT(n) (1UL << (n))
#endif
TEST_CASE("test_float_to_fixed_point", "[fmt_convert]")
{
float f_nan = NAN;
float f_inf = INFINITY;
float f0 = 100.9f;
float f_zero = 0;
float f_precise = 0.5f;
float f_int = 2.0f;
float f_frac = 1.0f / 3.0f;
float f_dec = 1.453f;
float f_neg = -1.25f;
uint32_t out = 0;
hal_utils_fixed_point_t fp_cfg = {
.int_bit = 24,
.frac_bit = 8,
.saturation = false,
};
// Invalid arguments case
TEST_ASSERT_EQUAL_INT(-3, hal_utils_float_to_fixed_point_32b(f_dec, &fp_cfg, &out));
printf("Invalid arguments case passed!\n");
fp_cfg.int_bit = 2;
// Overflow case
TEST_ASSERT_EQUAL_INT(-1, hal_utils_float_to_fixed_point_32b(f0, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(0x64E6, out); // integ: 0x64 = 100, frac: 0xE6 / 0x100 = 0.8984375
printf("Overflow case passed!\n");
// Not-a-Number case
TEST_ASSERT_EQUAL_INT(-2, hal_utils_float_to_fixed_point_32b(f_nan, &fp_cfg, &out));
printf("Not-a-Number case passed!\n");
// Infinity case
TEST_ASSERT_EQUAL_INT(-1, hal_utils_float_to_fixed_point_32b(f_inf, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(BIT(31) - 1, out);
printf("Infinity case passed!\n");
fp_cfg.saturation = true;
// Limit overflow case
TEST_ASSERT_EQUAL_INT(-1, hal_utils_float_to_fixed_point_32b(f0, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(BIT(10) - 1, out); // Limit to the maximum value, integ: 0x03 = 3 | frac: 0xff / 0x100 = 0.99609375
printf("Limit overflow case passed!\n");
// Zero case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f_zero, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(0, out); // Special case, 0 = 0
printf("Zero case passed!\n");
// Precision case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f_precise, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(BIT(7), out); // frac: 0x80 / 0x100 = 0.5
printf("Precision case passed!\n");
// Integer case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f_int, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(BIT(9), out); // integ: 2 | frac: 0x00 / 0x100 = 0
printf("Integer case passed!\n");
// Fraction case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f_frac, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(0x055, out); // 0x55 / 0x100 = 0.33203125
printf("Fraction case passed!\n");
// Decimal case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f_dec, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(0x173, out); // integ: 0x01 = 1, frac: 0x73 / 0x100 = 0.44921875
printf("Decimal case passed!\n");
// Negative case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f_neg, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(BIT(10) | BIT(8) | (BIT(6)), out); // sign: 1 | integ: 1 | frac: 0x40 / 0x100 = 0.25
printf("Negative case passed!\n");
fp_cfg.int_bit = 8;
// Integer bits case
TEST_ASSERT_EQUAL_INT(0, hal_utils_float_to_fixed_point_32b(f0, &fp_cfg, &out));
TEST_ASSERT_EQUAL_UINT32(0x64E6, out); // integ: 0x64 = 100, frac: 0xE6 / 0x100 = 0.8984375
printf("Integer bits case passed!\n");
}