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CC3220SF 中的串口读写是否每次都有最大长度限制?

Other Parts Discussed in Thread: CC3220SF

你好,当我使用Uart_read 读取串口数据,每次读取1024个数据(实际串口只有发送了200个数据),用逻辑分析仪测得,每次CC3220SF这边接收到8个字节的数据后就会把流控拉高(CC3220SF使用了流控,当RX忙的时候会把引脚拉高),然后后面就没有传输数据了。所以我想请问下,关于UART_read与 UART_write API中的 size :

@param size The number of bytes in the buffer that should be written
* to the UART

有没有最大长度限制,即单次收发有没有上限