QSPI指令的单线模式与4线模式的区别

yang000333245 · 发表于 2019-10-6 15:50:53

在进行W25QXX配置的时候，用到了这几行代码

QSPI_Send_CMD(W25X_Enable4ByteAddr,0,0,QSPI_INSTRUCTION_4_LINES,QSPI_ADDRESS_NONE,QSPI_ADDRESS_8_BITS,QSPI_DATA_NONE)
QSPI_Send_CMD(W25X_SetReadParam,0,0,QSPI_INSTRUCTION_4_LINES,QSPI_ADDRESS_NONE,QSPI_ADDRESS_8_BITS,QSPI_DATA_4_LINES);

QSPI_Send_CMD(W25X_EnterQPIMode,0,0,QSPI_INSTRUCTION_1_LINE,QSPI_ADDRESS_NONE,QSPI_ADDRESS_8_BITS,QSPI_DATA_NONE);

指令有QSPI_INSTRUCTION_1_LINE和QSPI_INSTRUCTION_4_LINES这两种模式，请问这两种有什么区别么，都用单线模式可以么？