器件型号: MSPM0G3507
我尝试将 SPI 外设配置为在外设模式下运行、以 Motorola 格式进行 16 位传输。 我希望使用控制器器件将多个字传输到外设(并接收数据以进行响应)、理想情况下不会在字之间将 CS 置为无效。 但是、参考手册 25.2.3.1 中的案文如下:
For continuous back-to-back transmissions, the CS signal must pulse high between each data word transfer because the peripheral-select pin freezes the data in its serial peripheral register and does not allow altering of the data if the SPH bit is clear. The controller device must raise the CS pin of the peripheral device between each data transfer to enable the serial peripheral data write.
据我所知、CS 必须在每个 16 位字之后由控制器发出高电平脉冲。 我是否正确理解了这一点?