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Crc initial example

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Zaltora 2017-02-12 11:56:15 +01:00
parent 5eae1664e5
commit dfc8420373
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examples/crc_example/crc_main.c Normal file
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/*
* Example code to test i2c link
*/
/////////////////////////////////Lib
#include "espressif/esp_common.h"
#include "esp/uart.h"
#include "FreeRTOS.h"
#include "task.h"
#include "esp8266.h"
//extras
#include "crc_config_perso.h"
unsigned char check_data[] = { "123456789" };
void crc_8bit(void *pvParameters) {
config_crc_8 customcrc ; // my crc object
crc_8 tabsrc[256]; // my crc kook-up table
crc_8_generic_init(&customcrc,0x31, 8, 0x00, 0x00, 1, 1, 1);
// Use table algorithm / generate table
crc_8_generic_select_algo(&customcrc, tabsrc, CRC_TABLE, 0);
//show table
printf("tabsrc[256] = {");
for (crc_16 i = 0 ; i < 256 ; i++)
{
if(!(i%8)) printf("\n");
printf("0x%02X, ",tabsrc[i]);
}
printf("\n};\n");
//show setting of crc
printf("CRC 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");
printf("Results:\n");
printf("\n");
crc_8_generic_select_algo(&customcrc, (crc_8*)tabsrc, CRC_TABLE, 0);
printf("CRC_TABLE\t\t: 0x%02X\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
crc_8_generic_select_algo(&customcrc, (crc_8*)tabsrc, CRC_TABLE_FAST, 0);
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, CRC_BIT_TO_BIT, 0);
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, CRC_BIT_TO_BIT_FAST, 0);
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*)crc_8_tab_MAXIM, CRC_TABLE_FAST, 1);
printf("CRC_TABLE_BUILTIN\t\t: 0x%02X\n", crc_8_generic_compute(&customcrc, check_data, sizeof(check_data)));
vTaskDelay(2000 / portTICK_PERIOD_MS) ;
while (1) {
vTaskDelay(1000 / 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");
xTaskCreate(crc_8bit, "crc_8bit", 512, NULL, 2, NULL);
}