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