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[/] [neo430/] [trunk/] [neo430/] [sw/] [example/] [crc_test/] [main.c] - Rev 198
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// ################################################################################################# // # < CRC unit test program > # // # ********************************************************************************************* # // # BSD 3-Clause License # // # # // # Copyright (c) 2020, Stephan Nolting. All rights reserved. # // # # // # Redistribution and use in source and binary forms, with or without modification, are # // # permitted provided that the following conditions are met: # // # # // # 1. Redistributions of source code must retain the above copyright notice, this list of # // # conditions and the following disclaimer. # // # # // # 2. Redistributions in binary form must reproduce the above copyright notice, this list of # // # conditions and the following disclaimer in the documentation and/or other materials # // # provided with the distribution. # // # # // # 3. Neither the name of the copyright holder nor the names of its contributors may be used to # // # endorse or promote products derived from this software without specific prior written # // # permission. # // # # // # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS # // # OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF # // # MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE # // # COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, # // # EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE # // # GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED # // # AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING # // # NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED # // # OF THE POSSIBILITY OF SUCH DAMAGE. # // # ********************************************************************************************* # // # The NEO430 Processor - https://github.com/stnolting/neo430 # // ################################################################################################# // Libraries #include <stdint.h> #include <string.h> #include <neo430.h> // Configuration #define BAUD_RATE 19200 /* ------------------------------------------------------------ * INFO Main function * ------------------------------------------------------------ */ int main(void) { char buffer[256]; // CRC results were validated using http://crccalc.com/ // setup UART neo430_uart_setup(BAUD_RATE); neo430_uart_br_print("\n<<< CRC16/CRC32 module test >>>\n"); // check if CRC unit was synthesized, exit if not available if (!(SYS_FEATURES & (1<<SYS_CRC_EN))) { neo430_uart_br_print("Error! No CRC unit synthesized!"); return 1; } // get start values neo430_uart_br_print("\nEnter start value for CRC16 shift register (4hex): 0x"); neo430_uart_scan(buffer, 4+1, 1); uint16_t crc16_start = (uint16_t)neo430_hexstr_to_uint(buffer, 4); neo430_uart_br_print("\nEnter start value for CRC32 shift register (8hex): 0x"); neo430_uart_scan(buffer, 8+1, 1); uint32_t crc32_start = neo430_hexstr_to_uint(buffer, 8); // get polynomial masks neo430_uart_br_print("\nEnter polynomial mask for CRC16 (4hex): 0x"); neo430_uart_scan(buffer, 4+1, 1); uint16_t crc16_poly = (uint16_t)neo430_hexstr_to_uint(buffer, 4); neo430_uart_br_print("\nEnter polynomial mask for CRC32 (8hex): 0x"); neo430_uart_scan(buffer, 8+1, 1); uint32_t crc32_poly = neo430_hexstr_to_uint(buffer, 8); while(1) { // get actual data neo430_uart_br_print("\nEnter text for CRC16/32 computation: "); neo430_uart_scan(buffer, 255, 1); uint16_t crc16_res = neo430_crc16(crc16_start, crc16_poly, (uint8_t*)buffer, strlen(buffer)); uint32_t crc32_res = neo430_crc32(crc32_start, crc32_poly, (uint8_t*)buffer, strlen(buffer)); // show results neo430_uart_br_print("\nCRC16 = 0x"); neo430_uart_print_hex_word(crc16_res); neo430_uart_br_print("\nCRC32 = 0x"); neo430_uart_print_hex_word((uint16_t)(crc32_res >> 16)); neo430_uart_print_hex_word((uint16_t)crc32_res); neo430_uart_br_print("\n"); } return 0; }