On 08/05/2015 01:13 AM, Yogi A. Patel wrote:
> On 08/05/2015 01:00 AM, Jorge Ramirez Ortiz wrote:
>> On 08/04/2015 11:01 PM, Yogi A. Patel wrote:
>>> Hi -
>>>
>>> I am migrating a xenomai 2.5.4 application to the cobalt core. I have
>>> xenomai
>>> 3.0-rc5 installed with 3.18.12.
>>>
>>> I have a NI PCI 6250 card that is attached via analogy_config. I can
>>> successfully run the insn_read command that is installed with the user space
>>> support by running:
>>>
>>> sudo ./insn_read -d analogy0 -c 3 -R 0 --verbose
>>>
>>> This prints out a set of values close to what I am expecting (5V)
>>>
>>> I then attempt to use the analogy calibration feature added to Xenomai 3 by
>>> running:
>>>
>>> sudo ./analogy_calibrate --device=analogy0 --output=calvals.bin
>>>
>>> This prints out the following:
>>>
>>> 0"000.079| calibration output: calvals.binls
>>> 0"004.427| calibrating device: analogy_ni_pcimio
>>> 0"255.934| Polynomial :
>>> 0"255.972| order = 3
>>> 0"255.995| expansion origin = 32767.000000
>>> 0"256.026| order 0 coefficient = 32867.5
>>> 0"256.051| order 1 coefficient = 0.949174
>> ...
>>> NOTE: there appears to be a print bug above (0"283.294| Calibrating AI: �m)
>> apply the following:
>>
>> [jramirez@calypso ~ (master *)]$ git diff calibration_ni_m.c
>> diff --git a/utils/analogy/calibration_ni_m.c
>> b/utils/analogy/calibration_ni_m.c
>> index c72a44d..6f9be6f 100644
>> --- a/utils/analogy/calibration_ni_m.c
>> +++ b/utils/analogy/calibration_ni_m.c
>> @@ -973,7 +973,7 @@ static int ni_m_calibrate_ai(void)
>> * calibrate low, medium and high gain ranges
>> */
>> for (i = 0; i < ARRAY_LEN(cal_info); i++) {
>> - __debug("Calibrating AI: %s \n", cal_info[i]);
>> + __debug("Calibrating AI: %s \n", cal_info[i].message);
>>
>> if (cal_info[i].range >= 0)
>> goto calibrate;
>>
>>
>>
>>>> Has anyone successfully used the calibration feature?
>> it seemed to work ok when I wrote the code some time ago on the 6220 I think
>> it was.
>> Please could you post the contents of the calibration file?
> The calibration file output is:
>
> [platform]
> driver_name = analogy_ni_pcimio;
> board_name = pci-6250;
>
> [analog_input]
> index = 0;
> elements = 7;
> [analog_input_0]
> channel = -1;
> range = 0;
> expansion_origin = 6.95327e-310;
> nbcoeff= 4;
> coeff_0 = 6.36599e-314;
> coeff_1 = 6.95327e-310;
> coeff_2 = 4.94066e-324;
> coeff_3 = 6.95187e-310;
> [analog_input_1]
> channel = -1;
> range = 1;
> expansion_origin = 32767;
> nbcoeff= 4;
> coeff_0 = -0.000597716;
> coeff_1 = 0.000162699;
> coeff_2 = -2.5516e-11;
> coeff_3 = -1.15365e-15;
> [analog_input_2]
> channel = -1;
> range = 2;
> expansion_origin = 32767;
> nbcoeff= 4;
> coeff_0 = -0.000204136;
> coeff_1 = 6.4913e-05;
> coeff_2 = -1.01803e-11;
> coeff_3 = -4.60278e-16;
> [analog_input_3]
> channel = -1;
> range = 3;
> expansion_origin = 32767;
> nbcoeff= 4;
> coeff_0 = -7.99442e-05;
> coeff_1 = 3.25526e-05;
> coeff_2 = -5.10522e-12;
> coeff_3 = -2.3082e-16;
> [analog_input_4]
> channel = -1;
> range = 4;
> expansion_origin = 32767;
> nbcoeff= 4;
> coeff_0 = -1.47307e-05;
> coeff_1 = 1.62562e-05;
> coeff_2 = -2.54945e-12;
> coeff_3 = -1.15267e-16;
> [analog_input_5]
> channel = -1;
> range = 5;
> expansion_origin = 32767;
> nbcoeff= 4;
> coeff_0 = 2.13154e-05;
> coeff_1 = 6.51906e-06;
> coeff_2 = -1.02238e-12;
> coeff_3 = -4.62246e-17;
> [analog_input_6]
> channel = -1;
> range = 6;
> expansion_origin = 32767;
> nbcoeff= 4;
> coeff_0 = 3.44007e-05;
> coeff_1 = 3.253e-06;
> coeff_2 = -5.10168e-13;
> coeff_3 = -2.3066e-17;
>
This file doesn't seem to correspond to the trace you previously sent.
please could you share:
1. a complete trace
2. the corresponding calibration file
Also you should be able to use insn_read without applying any calibration (does
this work on your setup?)
I'll try to replicate on my side but there is no reason why you cant gdb those
programs as well.
What kernel are you using and what Xenomai commit?
--
jro
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