Hello, I'm trying to configure AD7771 to read out all 8 channels via SPI at a ~250hz ODR
I'm pretty sure I'm setting the decimation rate correctly, as I can see with logic analyzer that I get DRDY at ever ~4ms which is correct (I set the dec rate int to 4095 and dec rate dec to 99 )
Here's the readout to some of the relevant registers ( I saw they were needed on other thread) Numbers are HEX, but withouth the 0x
[00:00:00.541,595] <inf> adi_ad7779: gen usr 1: 34 ( This I also configured to be 0x24, but same result)
[00:00:00.541,687] <inf> adi_ad7779: gen usr 2: 9
[00:00:00.541,778] <inf> adi_ad7779: gen usr 3: 80
[00:00:00.541,839] <inf> adi_ad7779: reg err 0: 0
[00:00:00.541,931] <inf> adi_ad7779: reg err 1: 0
[00:00:00.542,022] <inf> adi_ad7779: reg err 2: 0
[00:00:00.542,114] <inf> adi_ad7779: reg err 3: 0
[00:00:00.542,175] <inf> adi_ad7779: reg err 4: 0
[00:00:00.542,266] <inf> adi_ad7779: reg err 5: 0
[00:00:00.542,358] <inf> adi_ad7779: reg err 6: 0
[00:00:00.542,449] <inf> adi_ad7779: reg err 7: 0
[00:00:00.542,541] <inf> adi_ad7779: AD7779_REG_CHX_ERR_REG_EN: fe
[00:00:00.542,633] <inf> adi_ad7779: AD7779_REG_GEN_ERR_REG_1: 0
[00:00:00.542,724] <inf> adi_ad7779: AD7779_REG_GEN_ERR_REG_1_EN: 3e
[00:00:00.542,816] <inf> adi_ad7779: AD7779_REG_GEN_ERR_REG_2: 0
[00:00:00.542,907] <inf> adi_ad7779: AD7779_REG_GEN_ERR_REG_2_EN: 3c
[00:00:00.542,999] <inf> adi_ad7779: AD7779_REG_STATUS_REG_1: 0
[00:00:00.543,090] <inf> adi_ad7779: AD7779_REG_STATUS_REG_2: 0
[00:00:00.543,182] <inf> adi_ad7779: AD7779_REG_STATUS_REG_3: 10
[00:00:00.543,182] <inf> adi_ad7779: AD7779_REG_CH_DISABLE 0
According to this the configuration is sort of correct, But when I try to read out the channels all I get is 0 for the data, and it seems a bunch of errors for the header
Here's the data readout for the first 2 channels, rest are similar.
Is there anything to guide me further?
