ltc6811: NoPolling mode does not work?

[alexanderustinov]

Hello, thank you for the effort.

I was working with LTC6811 through linux-embedded-hal on rpi3 and stumbled upon a problem: measurements always give ChecksumMismatch when done in NoPolling mode.

I am not sure but it seems that in NoPolling mode CS pin get high while thread sleeps for time required for adc to measure. After it gets low again 6811 does not respond.

Anyone else experiencing this on other platforms or with other chip?

[marius-meissner]

We once had the problem that the IC went into power-saving mode after a while, even though there was actually enough activity.
This can be prevented if the reference voltage is switched on permanently:
https://docs.rs/ltc681x/0.6.0/ltc681x/config/struct.Configuration.html#method.enable_reference_power

Perhaps the problem is similar for you.

[alexanderustinov]

We once had the problem that the IC went into power-saving mode after a while, even though there was actually enough activity. This can be prevented if the reference voltage is switched on permanently: https://docs.rs/ltc681x/0.6.0/ltc681x/config/struct.Configuration.html#method.enable_reference_power

Thanks. But alas, this seems to be different problem - pre-writing configuration with enable_reference_power set does not change the outcome.