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ADF5355 register 6 issues

Question asked by MarkB1 on Jun 13, 2018
Latest reply on Jun 26, 2018 by mhennerich

On my board I write to the registers on startup using /sys/kernel/debug/iio/iio:device1/direct_reg_access.  I follow the sequence described in the data sheet (start from register 12 and go down to 0, sequentially ) then I change to the freq I want using the driver (/sys/devices/soc0/amba/e0006000.spi/spi_master/spi1/spi1.1/iio:device1/out_altvoltage1_frequency).  I read back registers 3 to 12 and only register 6 is set to something completely different than what I set it to on bootup.  Trying to understand why before I start debugging the driver.