mirror of
https://github.com/espressif/ESP8266_RTOS_SDK.git
synced 2025-05-21 17:16:29 +08:00
82 lines
2.2 KiB
C
82 lines
2.2 KiB
C
// Copyright 2018-2019 Espressif Systems (Shanghai) PTE LTD
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include <string.h>
|
|
#include <stdio.h>
|
|
#include <assert.h>
|
|
#include "rom/crc.h"
|
|
#include "unity.h"
|
|
|
|
#define TEST_CRC_COUNT 4096
|
|
#define TEST_CRC_DEBUG 1
|
|
#define TEST_DATA_BYTES 128
|
|
|
|
static uint8_t s_crc_src[TEST_DATA_BYTES];
|
|
|
|
TEST_CASE("Test CRC8", "[CRC8]")
|
|
{
|
|
uint8_t crc = 0;
|
|
uint32_t crc_time = 0;
|
|
|
|
extern uint32_t esp_get_time(void);
|
|
|
|
memset(s_crc_src, 11, TEST_DATA_BYTES);
|
|
|
|
for (int i = 0; i < TEST_CRC_COUNT; i++) {
|
|
uint32_t tmp = esp_get_time();
|
|
|
|
crc = esp_crc8(s_crc_src, sizeof(s_crc_src));
|
|
|
|
crc_time += esp_get_time() - tmp;
|
|
|
|
TEST_ASSERT_EQUAL(0xd7, crc);
|
|
}
|
|
|
|
#if TEST_CRC_DEBUG
|
|
printf("CRC8 test cost time totally %u us, once cost is about %u us\n",
|
|
crc_time, crc_time / TEST_CRC_COUNT);
|
|
#endif
|
|
}
|
|
|
|
// no align: CRC8 test cost time totally 955287 us, once cost is about 233 us
|
|
// align : CRC8 test cost time totally 186694 us, once cost is about 45 us
|
|
|
|
TEST_CASE("Test CRC16", "[CRC16]")
|
|
{
|
|
uint16_t crc = 0;
|
|
uint32_t crc_time = 0;
|
|
|
|
extern uint32_t esp_get_time(void);
|
|
|
|
memset(s_crc_src, 11, TEST_DATA_BYTES);
|
|
|
|
for (int i = 0; i < TEST_CRC_COUNT; i++) {
|
|
uint32_t tmp = esp_get_time();
|
|
|
|
crc = crc16_le(0, s_crc_src, sizeof(s_crc_src));
|
|
|
|
crc_time += esp_get_time() - tmp;
|
|
|
|
TEST_ASSERT_EQUAL(0x495d, crc);
|
|
}
|
|
|
|
#if TEST_CRC_DEBUG
|
|
printf("CRC16 test cost time totally %u us, once cost is about %u us\n",
|
|
crc_time, crc_time / TEST_CRC_COUNT);
|
|
#endif
|
|
}
|
|
|
|
// no align: CRC16 test cost time totally 1114398 us, once cost is about 272 us
|
|
// align : CRC16 test cost time totally 200268 us, once cost is about 48 us
|