xushaoxiang
32 lines
1.3 KiB
C
32 lines
1.3 KiB
C
#ifndef __FUNC_H
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#define __FUNC_H
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#include <stdint.h>
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//位变量按字节对齐
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#define SWAP(a, b, type) {type temp = a; a = b; b = temp;}
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#define bytealign(bits) ((bits + 7) & 0xF8)
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typedef union {uint32_t value; uint8_t data[4];}WORD_T;
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typedef union {float value; uint8_t data[4];}FLOAT_T;
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/****************************** 校验相关操作 ******************************/
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extern void f_addcrc(uint8_t *data, uint16_t length);
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extern uint8_t f_checkcrc(const uint8_t *data, uint16_t length);
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/****************************** 内存相关操作 ******************************/
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extern void f_memcpy(uint8_t *dest, const uint8_t *src, uint16_t size);
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extern void f_memset(uint8_t *data, uint8_t val, uint16_t size);
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extern uint8_t f_memcmp(const uint8_t *data1, const uint8_t *data2, uint16_t size);
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/***************************** 字符串相关操作 *****************************/
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extern uint8_t f_chrcmp(const uint8_t *data, uint8_t val, uint16_t size);
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extern uint8_t f_strcmp(const uint8_t *str1, const uint8_t *str2);
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extern uint8_t f_strstr(const uint8_t *str1, const uint8_t *str2);
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extern int8_t f_strchr(const uint8_t *str, uint8_t ch);
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/******************************* 计算相关操作 *******************************/
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extern float f_delta(const float aa, const float bb);
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extern uint32_t f_abs(const uint32_t val1, const uint32_t val2);
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#endif
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