一般是SPI通信协议的IC 这个函数理解 对IC芯片写COMMAND，值为0 根据这个函数名字应该是一个SPI 写函数，这个command具体是何命令要根据你的程序才能知道，你没有贴代码，没法帮你具体看
Hello, I am using the I.MXRT1062 and using the LPSPI module. I have to write to a SPI attached LCD display that requires a command pin to be toggled
Issue the write data command into SPIDTR, to write data into any specific sector followed by the flash sector address. Fill SPIDTR with the data to be written to flash; the maximum data size depends upon the configured QSPI FIFO size. ...