139 lines
4.9 KiB
C
139 lines
4.9 KiB
C
/*
|
|
* Example code to test crc and speed
|
|
*/
|
|
/////////////////////////////////Lib
|
|
#include "espressif/esp_common.h"
|
|
#include "esp/uart.h"
|
|
#include "FreeRTOS.h"
|
|
#include "task.h"
|
|
#include "esp8266.h"
|
|
#include <esp/hwrand.h>
|
|
|
|
//crc lib
|
|
#include "crc_generic.h"
|
|
|
|
#define NUMBER_COMPUTE_TEST 1000
|
|
|
|
unsigned char check_data[] = { "123456789" };
|
|
uint8_t tab_data[512];
|
|
|
|
void crc_8bit(void *pvParameters) {
|
|
|
|
config_crc_8 customcrc ; // my crc object
|
|
crc_8 tabsrc[256]; // my crc look-up table
|
|
|
|
//init crc parameters (MAXIM parameters)
|
|
crc_8_generic_init(&customcrc,0x31, 8, 0x00, 0x00, 1, 1, 1);
|
|
|
|
//generate table
|
|
crc_8_generate_table(&customcrc, tabsrc, sizeof(tabsrc));
|
|
|
|
//show setting of crc
|
|
printf("\nCRC library v1.0 written on 11/02/2017 by Zaltora\n");
|
|
printf("-------------------------------------------------\n");
|
|
printf("\n");
|
|
printf("Parameters:\n");
|
|
printf("\n");
|
|
printf(" polynom : 0x%02X\n", customcrc.polynom);
|
|
printf(" order : %d\n", customcrc.order);
|
|
printf(" crcinit : 0x%02X direct, 0x%x nondirect\n", customcrc.private.crcinit_direct, customcrc.private.crcinit_nondirect);
|
|
printf(" crcxor : 0x%02X\n", customcrc.crcxor);
|
|
printf(" refin : %d\n", customcrc.refin);
|
|
printf(" refout : %d\n", customcrc.refout);
|
|
printf("\n");
|
|
printf("check_data : '%s' (%d bytes)\n", check_data, sizeof(check_data));
|
|
printf("\n");
|
|
|
|
//show table
|
|
printf("Lookup table generated:\n");
|
|
printf("\n");
|
|
printf("tabsrc[256] = {");
|
|
for (uint16_t i = 0 ; i < 256 ; i++)
|
|
{
|
|
if(!(i%8)) printf("\n");
|
|
printf("0x%02X, ",tabsrc[i]);
|
|
}
|
|
printf("\n};\n\n");
|
|
|
|
printf("Check value results with all algorithms:\n");
|
|
printf("\n");
|
|
|
|
//try different crc algorithm
|
|
crc_8_generic_select_algo(&customcrc, tabsrc, sizeof(tabsrc), CRC_TABLE);
|
|
printf("CRC_TABLE\t\t: 0x%02X\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
|
|
crc_8_generic_select_algo(&customcrc, tabsrc, sizeof(tabsrc), CRC_TABLE_FAST);
|
|
printf("CRC_TABLE_FAST\t\t: 0x%02X\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
|
|
crc_8_generic_select_algo(&customcrc, NULL, 0, CRC_BIT_TO_BIT);
|
|
printf("CRC_BIT_TO_BIT\t\t: 0x%02X\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
|
|
crc_8_generic_select_algo(&customcrc, NULL, 0, CRC_BIT_TO_BIT_FAST);
|
|
printf("CRC_BIT_TO_BIT_FAST\t: 0x%02X\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
|
|
crc_8_generic_select_algo(&customcrc, crc_8_tab_MAXIM, sizeof(crc_8_tab_MAXIM), CRC_TABLE_FAST);
|
|
printf("CRC_TABLE_BUILTIN\t: 0x%02X\n\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
|
|
|
|
printf("Test speed algorithms with random data:\n");
|
|
printf("\n");
|
|
|
|
//data to process
|
|
printf("%u bytes of DATA:",sizeof(tab_data));
|
|
for (uint16_t i = 0 ; i < sizeof(tab_data) ; i++)
|
|
{
|
|
tab_data[i] = (uint8_t)hwrand();
|
|
if(!(i%32)) printf("\n");
|
|
printf("%02X",tab_data[i]);
|
|
}
|
|
printf("\n\n");
|
|
|
|
const uint32_t cst = NUMBER_COMPUTE_TEST ;
|
|
char algo_txt[30] ;
|
|
uint32_t time = 0;
|
|
uint8_t select = 0;
|
|
uint8_t result = 0;
|
|
for(select = 0; select < 5 ; select++)
|
|
{
|
|
switch(select){
|
|
case 0:
|
|
crc_8_generic_select_algo(&customcrc, NULL, 0, CRC_BIT_TO_BIT);
|
|
sprintf(algo_txt,"CRC_BIT_TO_BIT");
|
|
break;
|
|
case 1:
|
|
crc_8_generic_select_algo(&customcrc, NULL, 0, CRC_BIT_TO_BIT_FAST);
|
|
sprintf(algo_txt,"CRC_BIT_TO_BIT_FAST");
|
|
break;
|
|
case 2:
|
|
crc_8_generic_select_algo(&customcrc, tabsrc, sizeof(tabsrc), CRC_TABLE);
|
|
sprintf(algo_txt,"CRC_TABLE");
|
|
break;
|
|
case 3:
|
|
crc_8_generic_select_algo(&customcrc, tabsrc, sizeof(tabsrc), CRC_TABLE_FAST);
|
|
sprintf(algo_txt,"CRC_TABLE_FAST");
|
|
break;
|
|
case 4:
|
|
crc_8_generic_select_algo(&customcrc, crc_8_tab_MAXIM, sizeof(crc_8_tab_MAXIM), CRC_TABLE_FAST);
|
|
sprintf(algo_txt,"CRC_TABLE_FAST_BUILTIN");
|
|
break;
|
|
}
|
|
printf("test speed algorithm %s \n",algo_txt);
|
|
time = sdk_system_get_time();
|
|
for (uint32_t i = 0 ; i < cst ; i++)
|
|
{
|
|
result = crc_8_generic_compute(&customcrc, tab_data, sizeof(tab_data));
|
|
}
|
|
time = sdk_system_get_time()-time ;
|
|
printf("Speed algorithm: %.3f us\n",(float)time/(float)cst);
|
|
printf("Result algorithm: %02X\n\n",result);
|
|
}
|
|
while (1)
|
|
{
|
|
vTaskDelay(10000 / portTICK_PERIOD_MS) ;
|
|
}
|
|
}
|
|
|
|
void user_init(void)
|
|
{
|
|
sdk_system_update_cpu_freq(160);
|
|
uart_set_baud(0, 115200);
|
|
printf("SDK version:%s\n", sdk_system_get_sdk_version());
|
|
printf("Start\n\n");
|
|
vTaskDelay(2000 / portTICK_PERIOD_MS) ;
|
|
xTaskCreate(crc_8bit, "crc_8bit", 512, NULL, 2, NULL);
|
|
}
|