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TL16C554A连续发送问题

Other Parts Discussed in Thread: TL16C554A

现使用单片机驱动TL16C554A扩展串口来控制另外一个模块,控制有个指令是以字符串形式发送,但数据量42个字节,而16C554A的FIFO只有16个字节,测试发现一次性发送42个字节有问题,只能收到28个字节左右,分包发送需要发送完一次后延迟一段时间再发第二包,这样就造成模块无法控制,模块无法侦测到帧头和帧尾。哪位仁兄遇到过类似问题,有解决方法没有。