If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
这需要一个 nss 信号. 从芯片的引脚看, 也只有 SYNC 这个引脚有可能, 看手册
Level-triggered control input (active-low). This input is the frame synchronization signal for the input data. When SYNC goes low, it enables the input shift register, and data are sampled on subsequent falling clock edges. The DAC output updates following the 24th clock falling edge. If SYNC is taken high before the 23rd clock edge, the rising edge of SYNC acts as an interrupt, and the write sequence is ignored by the DAC756x, DAC816x, and DAC856x devices. Schmitt-trigger logic input
看样子单独控制这个信号, 那么楼主的功能要求是可能的
这需要一个 nss 信号. 从芯片的引脚看, 也只有 SYNC 这个引脚有可能, 看手册 Level-triggered control input (active-low). This input is the frame synchronization signal for the input data. When SYNC goes low, it enables the input shift register, and data are sampled on subsequent falling clock edges. The DAC output updates following the 24th clock falling edge. If SYNC is taken high before the 23rd clock edge, the rising edge of SYNC acts as an interrupt, and the write sequence is ignored by the DAC756x, DAC816x, and DAC856x devices. Schmitt-trigger logic input 看样子单独控制这个信号, 那么楼主的功能要求是可能的
