by schumi2000
sys.cpp
- Committer:
- schumi2000
- Date:
- 2016-08-17
- Revision:
- 0:32964091adbf
File content as of revision 0:32964091adbf:
#include "sys.h" unsigned short ccitt_table[256] = { 0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50A5, 0x60C6, 0x70E7, 0x8108, 0x9129, 0xA14A, 0xB16B, 0xC18C, 0xD1AD, 0xE1CE, 0xF1EF, 0x1231, 0x0210, 0x3273, 0x2252, 0x52B5, 0x4294, 0x72F7, 0x62D6, 0x9339, 0x8318, 0xB37B, 0xA35A, 0xD3BD, 0xC39C, 0xF3FF, 0xE3DE, 0x2462, 0x3443, 0x0420, 0x1401, 0x64E6, 0x74C7, 0x44A4, 0x5485, 0xA56A, 0xB54B, 0x8528, 0x9509, 0xE5EE, 0xF5CF, 0xC5AC, 0xD58D, 0x3653, 0x2672, 0x1611, 0x0630, 0x76D7, 0x66F6, 0x5695, 0x46B4, 0xB75B, 0xA77A, 0x9719, 0x8738, 0xF7DF, 0xE7FE, 0xD79D, 0xC7BC, 0x48C4, 0x58E5, 0x6886, 0x78A7, 0x0840, 0x1861, 0x2802, 0x3823, 0xC9CC, 0xD9ED, 0xE98E, 0xF9AF, 0x8948, 0x9969, 0xA90A, 0xB92B, 0x5AF5, 0x4AD4, 0x7AB7, 0x6A96, 0x1A71, 0x0A50, 0x3A33, 0x2A12, 0xDBFD, 0xCBDC, 0xFBBF, 0xEB9E, 0x9B79, 0x8B58, 0xBB3B, 0xAB1A, 0x6CA6, 0x7C87, 0x4CE4, 0x5CC5, 0x2C22, 0x3C03, 0x0C60, 0x1C41, 0xEDAE, 0xFD8F, 0xCDEC, 0xDDCD, 0xAD2A, 0xBD0B, 0x8D68, 0x9D49, 0x7E97, 0x6EB6, 0x5ED5, 0x4EF4, 0x3E13, 0x2E32, 0x1E51, 0x0E70, 0xFF9F, 0xEFBE, 0xDFDD, 0xCFFC, 0xBF1B, 0xAF3A, 0x9F59, 0x8F78, 0x9188, 0x81A9, 0xB1CA, 0xA1EB, 0xD10C, 0xC12D, 0xF14E, 0xE16F, 0x1080, 0x00A1, 0x30C2, 0x20E3, 0x5004, 0x4025, 0x7046, 0x6067, 0x83B9, 0x9398, 0xA3FB, 0xB3DA, 0xC33D, 0xD31C, 0xE37F, 0xF35E, 0x02B1, 0x1290, 0x22F3, 0x32D2, 0x4235, 0x5214, 0x6277, 0x7256, 0xB5EA, 0xA5CB, 0x95A8, 0x8589, 0xF56E, 0xE54F, 0xD52C, 0xC50D, 0x34E2, 0x24C3, 0x14A0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405, 0xA7DB, 0xB7FA, 0x8799, 0x97B8, 0xE75F, 0xF77E, 0xC71D, 0xD73C, 0x26D3, 0x36F2, 0x0691, 0x16B0, 0x6657, 0x7676, 0x4615, 0x5634, 0xD94C, 0xC96D, 0xF90E, 0xE92F, 0x99C8, 0x89E9, 0xB98A, 0xA9AB, 0x5844, 0x4865, 0x7806, 0x6827, 0x18C0, 0x08E1, 0x3882, 0x28A3, 0xCB7D, 0xDB5C, 0xEB3F, 0xFB1E, 0x8BF9, 0x9BD8, 0xABBB, 0xBB9A, 0x4A75, 0x5A54, 0x6A37, 0x7A16, 0x0AF1, 0x1AD0, 0x2AB3, 0x3A92, 0xFD2E, 0xED0F, 0xDD6C, 0xCD4D, 0xBDAA, 0xAD8B, 0x9DE8, 0x8DC9, 0x7C26, 0x6C07, 0x5C64, 0x4C45, 0x3CA2, 0x2C83, 0x1CE0, 0x0CC1, 0xEF1F, 0xFF3E, 0xCF5D, 0xDF7C, 0xAF9B, 0xBFBA, 0x8FD9, 0x9FF8, 0x6E17, 0x7E36, 0x4E55, 0x5E74, 0x2E93, 0x3EB2, 0x0ED1, 0x1EF0 }; unsigned short crc_ccitt(unsigned char *q, int len) { unsigned short crc = 0; while (len-- > 0) crc = ccitt_table[(crc >> 8 ^ *q++) & 0xff] ^ (crc << 8); return ~crc; } /** *@brief 把十进制数转化为字符型 *@param c:要转化十进制数据 *@return 返回一个字符型数据 */ char c2d(uint8_t c) { if (c >= '0' && c <= '9') return c - '0'; if (c >= 'a' && c <= 'f') return 10 + c -'a'; if (c >= 'A' && c <= 'F') return 10 + c -'A'; return (char)c; } /** *@brief 字符转转化为8位整型函数 *@param str:要转化字符串, base: *@return num:返回转化后的整型数 */ uint16_t atoi16(char* str,uint16_t base ) { unsigned int num = 0; while (*str !=0) num = num * base + c2d(*str++); return num; } /** *@brief 把字符串转化为十进制或十六进制数函数 *@param str:要转化字符串, len:整型数长度 *@return 成功 - 1, 失败 - 0 */ int validatoi(char* str, int base,int* ret) { int c; char* tstr = str; if(str == 0 || *str == '\0') return 0; while(*tstr != '\0') { c = c2d(*tstr); if( c >= 0 && c < base) tstr++; else return 0; } *ret = atoi16(str,base); return 1; } void HexToStr(char *pbDest, char *pbSrc, int nLen) { char ddl,ddh; int i; for (i=0; i<nLen; i++) { ddh = 48 + pbSrc[i] / 16; ddl = 48 + pbSrc[i] % 16; if (ddh > 57) ddh = ddh + 7; if (ddl > 57) ddl = ddl + 7; pbDest[i*2] = ddh; pbDest[i*2+1] = ddl; } pbDest[nLen*2] = '\0'; } void HexOutput(const char* buf, int len) { int i=0; printf("The Hex output of data :\n0x"); for(i=0; i<len; ++i) { unsigned char c = buf[i]; // must use unsigned char to print >128 value if( c< 16) { printf("0%x ", c); } else { printf("%x ", c); } } printf("\n"); } void reverse_u64(uint64_t *temp) { char temp_str[8]; memset(temp_str,0x00,8); //printf("old data\n"); //HexOutput((char *)temp,8); memcpy(temp_str+7,(char*)temp,1); memcpy(temp_str+6,(char*)temp+1,1); memcpy(temp_str+5,(char*)temp+2,1); memcpy(temp_str+4,(char*)temp+3,1); memcpy(temp_str+3,(char*)temp+4,1); memcpy(temp_str+2,(char*)temp+5,1); memcpy(temp_str+1,(char*)temp+6,1); memcpy(temp_str,(char*)temp+7,1); memcpy((char *)temp,temp_str,8); //printf("new data\n"); //HexOutput((char *)temp,8); } void reverse_u32(uint32_t *temp) { char temp_str[4]; memset(temp_str,0x00,4); //USARTX_SendData(USART1,(char *)temp,4); memcpy(temp_str+3,(char*)temp,1); memcpy(temp_str+2,(char*)temp+1,1); memcpy(temp_str+1,(char*)temp+2,1); memcpy(temp_str,(char*)temp+3,1); memcpy((char *)temp,temp_str,4); //USARTX_SendData(USART1,(char *)temp,4); } void reverse_u16(uint16_t *temp) { char temp_str[2]; memset(temp_str,0x00,2); //USARTX_SendData(USART1,(char *)temp,2); memcpy(temp_str+1,(char*)temp,1); memcpy(temp_str,(char*)temp+1,1); memcpy((char *)temp,temp_str,2); //USARTX_SendData(USART1,(char *)temp,2); } //设置栈顶地址 //addr:栈顶地址 __asm void MSR_MSP(u32 addr) { MSR MSP, r0 //set Main Stack value BX r14 }