51单片机等串口缓存队列

C语言实现的串口query 缓存 8 bit一存，一帧一取，欢迎大家使用。 .c文件

/* *先入先出队列 */ uint8_t receive_buff[QUEUE_SIZE] = { 0 }; uint8_t front = 0; uint8_t rear = 0; bool QueryPush(uint8_t dat) { if (((front + 1) % QUEUE_SIZE) != rear) //队列没满 { receive_buff[front++] = dat; front %= QUEUE_SIZE; return TRUE; } else return FALSE; } bool QueryPop(uint8_t *dat) { if (front != rear) //队列不为空 { *dat = receive_buff[rear++]; rear %= QUEUE_SIZE; return TRUE; } return FALSE; } /* Modbus一帧数据出栈 */ bool PopFreame(uint8_t *buffer) { uint8_t data = 0; uint8_t count = 0; while ((count < FREAME_SIZE) && QueryPop(&data)) { buffer[count++] = data; } if (count != FREAME_SIZE) return FALSE; else { count = 0; return TRUE; } }

.h文件

#ifndef __QUEUE_H_ #define __QUEUE_H_ #include "stm8s.h" #define QUEUE_SIZE 32 //需要定义的空间大小为帧大小*帧数，例如帧大小为8B共4帧则为32 bool QueryPush(uint8_t dat); bool QueryPop(uint8_t *dat); bool PopFreame(uint8_t *buffer); #endif