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LTC6948-2 ,I can read from LTC6948-2,but I cant write in LTC6948-2 register.

我可以从LTC6948-2芯片中读取默认的数值 但是写入不进去是什么原因?

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  • Hi,

    Are you using the LTC6948 eval board, FracNWizard, and DC2026 (USB to SPI board)?  Or are you trying to write to the part using your own software and hardware?  Can you send a plot of your SCLK, SDI and !CS signals, so I can look at the timing?

    To write to the device please follow this timing diagram.  Notice after Address bit A0, there is bit that indicates whether the SPI is in Read or Write mode.

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  • Hi,

    Are you using the LTC6948 eval board, FracNWizard, and DC2026 (USB to SPI board)?  Or are you trying to write to the part using your own software and hardware?  Can you send a plot of your SCLK, SDI and !CS signals, so I can look at the timing?

    To write to the device please follow this timing diagram.  Notice after Address bit A0, there is bit that indicates whether the SPI is in Read or Write mode.

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