When I use this device,I found it reset by power on,then I send SPI data to it,The switches are updated with the new configuration.Then I operate it again ,but it doesn't response.Would it must be reset before update with the new configuration?
The device does not require a reset before sending new data. Please confirm that your SPI interface, /SYNC, SCLK and DIN signals are operating as per the timing in the datasheet.
Is it possible for you to capture these signals on an oscilloscope?
Can you clarify what you mean by "operate it again"?
Please give me an example of the SPI data you are sending to the part.
"operate it again" means I send new SPI data to ADG1414 without reset it.For example,after power on,I send 0xff to ADG1414,then all switchs keep on-state.After this,I send 0x55 to it,It would have 4 switchs on,and 4 switchs off,but I didn't see it like this.Please tell me why ! Would it must be reset before update with the new configuration?
Retrieving data ...