#include "tool.h" #include "includes.h" #define CRC16_INIT_VALUE 0x0000 //CRC校验 //CRC16-IBM uint16_t CRC16_get(uint8_t *_buff,uint32_t _len) { uint32_t i,j; uint16_t crc; uint16_t temp; crc=(uint16_t)CRC16_INIT_VALUE; for(i=0;i<_len;i++) { temp=_buff[i]; temp &=0x00FF; crc^=temp; for(j=0;j<8;j++) { if((crc&0x0001)!=0x00) { crc>>=1; crc^=0xA001; } else { crc>>=1; } } } return crc; } //报税口明文协议校验 uint8_t _crc_get_gw(uint8_t *data, uint8_t size) { uint8_t i, crc = 0; for(i = 0;i < size;i++){ crc ^=data[i]; } return crc; } //crc32校验 uint32_t crc_block_data_calculate(uint32_t *buf, uint32_t len) { uint32_t i,data; for(i = 0; i < len; i++) { CRC_FeedData32(CRC0, buf[i]); } data = CRC_ReadData32(CRC0); return data; } //异或和计算 uint8_t get_xor(uint8_t *buf, uint16_t len) { uint16_t i; uint8_t data = 0; for(i = 0; i < len; i++) { data ^= buf[i]; } return data; } /*转义*/ void _ytsf_data_code(uint8_t *buff, uint8_t *len) { uint8_t buff_code[128]; uint8_t i, tlen = 0; /* 帧中除了帧头为 BB 外，不再出现 BB，如果出现 BB 则转义为 BA 01；如果出现 BA 则转义为 BA 00；帧长度和校验码都按转义前 来计算。*/ for(i = 0;i < *len; i ++){ if(buff[i] == 0xba){ buff_code[tlen++] = 0xba; buff_code[tlen++] = 0x00; } else if(i&&buff[i] == 0xbb){ buff_code[tlen++] = 0xba; buff_code[tlen++] = 0x01; } else{ buff_code[tlen++] = buff[i]; } } memcpy(buff, buff_code, tlen); *len = tlen; } /*反转义*/ void _ytsf_data_decode(uint8_t *buff, uint8_t *len) { uint8_t buff_code[128]; uint8_t i, tlen = 0; /* 帧中除了帧头为 BB 外，不再出现 BB，如果出现 BB 则转义为 BA 01；如果出现 BA 则转义为 BA 00；帧长度和校验码都按转义前 来计算。*/ for(i = 0;i < *len; i ++){ if((buff[i] == 0xba)&&(buff[i+1] == 0x00)) { buff_code[tlen++] = 0xba; i += 1; } else if((buff[i] == 0xba)&&(buff[i+1] == 0x01)){ buff_code[tlen++] = 0xbb; i += 1; } else{ buff_code[tlen++] = buff[i]; } } memcpy(buff, buff_code, tlen); *len = tlen; } //十六进制字符串转十进制数 long HextoDec(char *s) { int i,t; long sum=0; for(i=0;s[i];i++) { if(s[i]<='9') t=s[i]-'0'; else t=s[i]-'A'+10; sum=sum*16+t; } return sum; } unsigned char HexToChar(unsigned char bChar) { if((bChar>=0x30)&&(bChar<=0x39)) { bChar -= 0x30; } else if((bChar>=0x41)&&(bChar<=0x46)) // Capital { bChar -= 0x37; } else if((bChar>=0x61)&&(bChar<=0x66)) //littlecase { bChar -= 0x57; } else { bChar = 0xff; } return bChar; } //ascii转十六进制 int asciitohex(char *data, uint8_t *out_data, int len) { int i,slen=0; uint8_t temp1,temp2; for(i = 0; i < len; i+=2) { temp1 = HexToChar(data[i]); temp2 = HexToChar(data[i+1]); out_data[slen] = (temp1<<4) | temp2; slen++; } return slen; } //字符串转十六进制数 uint32_t strtohex(char *data, uint8_t len) { uint8_t i = 0;; uint32_t p_data = 0; uint8_t temp; for(i = 0; i < len; i++) { temp = HexToChar(data[i]); if(temp == 0xff) break; p_data = (p_data<<4)|temp; } return p_data; } //ascii转bcd码 static uint8_t ascii2bcd1[10] = {0, 1, 2, 3, 4, 5, 6, 7, 8, 9}; static uint8_t ascii2bcd2[6] = {0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F}; /* 返回值：0 输入数据全部是字母(a~f、A~F)或数字；1 输入数据有不是字母(a~f、A~F)和数字的数 */ uint8_t ascii_to_bcd(uint8_t *data, uint8_t *res, uint16_t len) { uint8_t ret=0; uint8_t temp; uint8_t index; uint16_t i; if(len < 2) return 1; for(i = 0; i < len/2; i++) { //first BCD if(data[2*i]>='0' && data[2*i]<='9') { index = data[2*i] - '0'; temp = ascii2bcd1[index]<<4; } else if(data[2*i]>='A' && data[2*i]<='F') { index = data[2*i] - 'A'; temp = ascii2bcd2[index]<<4; } else if(data[2*i]>='a' && data[2*i]<='f') { index = data[2*i] - 'a'; temp = ascii2bcd2[index]<<4; } else { temp = 0; ret = 1; } //second BCD if(data[2*i+1]>='0' && data[2*i+1]<='9') { index = data[2*i+1] - '0'; temp |= ascii2bcd1[index]; } else if(data[2*i+1]>='A' && data[2*i+1]<='F') { index = data[2*i+1] - 'A'; temp |= ascii2bcd2[index]; } else if(data[2*i+1]>='a' && data[2*i+1]<='f') { index = data[2*i+1] - 'a'; temp |= ascii2bcd2[index]; } else { temp |= 0; ret = 1; } res[i] = temp; } return ret; } //获取当前时间 uint64_t get_real_time(void) { // return UTIL_GetMcycle(); return Systickcount; } /** * @brief 设置定时器 * @par param[timeout_t] *tt * @par param[uint32_t] val，延时ms * @par param[uint8_t] flg。0:不使能；1单次使能；0xFF连续使能 */ void timeout_setValue(timeout_t *tt,uint32_t val,uint8_t flg){ tt->flag = flg; tt->count = get_real_time(); tt->timeout = val;//UTIL_UsToMcycle(val); }; /** * @brief 启动定时器 * @par param[timeout_t] *tt * @par param[uint8_t] flg。0:不使能；1单次使能；0xFF连续使能 */ /** * @brief 启动定时器 * @param tt 定时器指针 * @param flg 是否开启 */ void timeout_start(timeout_t *tt,uint8_t flg){ tt->flag = flg; if(flg){ tt->count = get_real_time(); } }; /** * @brief 停止定时器 * @param tt 定时器指针 */ void timeout_stop(timeout_t *tt){ tt->flag = 0; }; /** * @brief 返回定时器是否超时 * @param tt 定时器指针 * @return uint8_t 1:超时，0:未超时 */ uint8_t timeout_isOut(timeout_t *tt){ volatile uint64_t time; if(tt->flag){ time = get_real_time(); if((time - tt->count) >= tt->timeout){ tt->count = time; if(tt->flag == 1){ tt->flag = 0; } return 1; } else{ return 0; } } else{ return 0; } }; /************************************************************************** 以下定时器均由timer定时器驱动，Tickcount_us ***************************************************************************/ /** * @brief 设置定时器 * @par param[timeout_t] *tt * @par param[uint32_t] val，延时10us * @par param[uint8_t] flg。0:不使能；1单次使能；0xFF连续使能 */ void timeout_setValue_us(timeout_t *tt,uint32_t val,uint8_t flg){ tt->flag = flg; tt->count = Get_Time(); tt->timeout = val; }; /** * @brief 启动定时器 * @par param[timeout_t] *tt * @par param[uint8_t] flg。0:不使能；1单次使能；0xFF连续使能 */ /** * @brief 启动定时器 * @param tt 定时器指针 * @param flg 是否开启 */ void timeout_start_us(timeout_t *tt,uint8_t flg){ tt->flag = flg; if(flg){ tt->count = Get_Time(); } }; /** * @brief 停止定时器 * @param tt 定时器指针 */ void timeout_stop_us(timeout_t *tt){ tt->flag = 0; }; /** * @brief 返回定时器是否超时 * @param tt 定时器指针 * @return uint8_t 1:超时，0:未超时 */ uint8_t timeout_isOut_us(timeout_t *tt){ if(tt->flag){ if((Get_Time() - tt->count) >= tt->timeout){ tt->count = Get_Time(); if(tt->flag == 1){ tt->flag = 0; } return 1; } else{ return 0; } } else{ return 0; } }; /************************************************************************** 以上定时器均由timer定时器驱动，Tickcount_us ***************************************************************************/ //数组比较 //返回，0：相同；1：不同 uint8_t buff_compare(uint8_t *buf1, uint8_t *buf2, uint16_t len) { uint8_t ret = 0; uint16_t i; for(i = 0; i < len; i++) { if(buf1[i] != buf2[i]) { ret = 1; break; } } return ret; } //设置标记高位取反 //将一个数设置为高八位是低八位的取反 uint16_t set_flag_not(uint16_t data) { uint16_t temp_data,ret_data = 0; uint16_t temp_h,temp_l; temp_data = data; temp_h = ((~temp_data)<<8)&0xff00; temp_l = temp_data&0x00ff; ret_data = temp_h | temp_l; return ret_data; } //标记高位取反判断 //0 错误，1 正确 uint8_t flag_not_cmp(uint16_t data) { uint8_t ret = 0; uint16_t temp_data; uint8_t temp_h,temp_l; temp_data = data; temp_h = (uint8_t)((temp_data&0xff00)>>8); temp_l = (uint8_t)(temp_data&0x00ff); if((temp_h^temp_l) == 0xff) { ret = 1; } return ret; }