Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

The library was not converting back the offset from the DAC raw value to
uV as expected by the API. This bug was masked by a previously fixed bug.

   143b17 lib: bugfix do not override value on write

Beware that the offset gets approximated to a 16bit number withing the
range [-5V, 4.999V]. This means that most of the time the read back is
not exactly what was configured but its hardware approximation (~152uV
steps).
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Reported-by: Nicolas Magnin <nicolas.magnin@cern.ch>

The value that needs to be written must not be manipulated. However,
we do need to manipulate it in some case like, for example, when
configuring the offset. This is fixed by using a local variable.

The previous code was overriding the value with the manipulation
result: this is wrong and it led to the believe that this code was
working, actually it was masking another bug (fixed in another patch).

The following test in the integration test suite was passing due to
this bug, however it should have failed because the read-back value is
wrong.

    assert conf.value_get(PyAdcConf.ADC_CONF_CHN_OFFSET) == conf_rb.value_get(PyAdcConf.ADC_CONF_CHN_OFFSET)

The value in `conf` ended up to be the same as its read back `conf_rb`
due to the manilupation done direction on the pointer.

So the test needs to be fixed as well to check on this possible regression.
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>
Reported-by: Nicolas Magnin <nicolas.magnin@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

4.0.1 - 2022-02-11
==================
Bugfix
------
- zero offset convertion from microVolts to fmc-adc-100m raw values

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

since the fmc-adc-100 v6 driver the offset accept raw values instead
of microvolts. The user offset was properly set, but the zero offset
was lacking the conversion from uV to raw values.
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

4.0.0 - 2021-09-10
==================
Added
-----
- the adc-acq tool uses VMALLOC by default
- tst: regression test for spec45t digital noise

Changed
-------
- the minimum required version for the fmc-adc-100m driver is v6.0.0
- the library converts offset microVolts to fmc-adc-100m raw values
- tst: improve tests

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

For the time being we can't actively change the function generator
setup, so for convenience we use a voltage setup compatible with 2
out of 3 possible voltage ranges.
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

The real upper limit is +4.999999 V and not +v5.000000. The system
before was silently accepting 5V but it was wrong. Now it correctly
complains, therefore the test needs a fix.
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Add the install target to lib/Makefile and tools/Makefile. The target
puts binaries in /usr/local/lib, and /usr/local/bin
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

the --plot plots all channels, but sometimes is useful to just plot
one or two. Now the same option accepts an argument to selected desired
channels
Signed-off-by: Tristan Gingold <tristan.gingold@cern.ch>
Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>

Signed-off-by: Federico Vaga <federico.vaga@cern.ch>