/* 基于esp32的环形队列 */
Ring queues based on esp32
/* 环形队列应用场景:缓冲区、音频缓冲、视频缓冲、流媒体播放缓冲、TCP/IP数据接收缓冲等 */
Ring queue application scenarios: buffer, audio buffer, video buffer, streaming media play buffer, TCP/IP data receive buffer, etc
Description of ring queue features:
1.Fifo, circular queue /* 先进先出，环形队列 */
2.Blocking mechanism, read and write protection /* 阻塞机制，读写保护 */
3.Fast reading and writing, pointer offset /* 读写快速，指针偏移 */
4.Interface encapsulation, direct call /* 接口封装，直接调用 */
Specific use of ring queue:
1.spiRamFifoInit();
2.spiRamFifoReset();
3.spiRamFifoWrite(const char *buff, int buffLen);
4.spiRamFifoRead(char *buff, int len);