Difference between revisions of "Flux-loop reset per detector"
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The flux-loop servo can be reset on a per-detector basis without having to stop the data-acquistion in progress. This is particulary useful in cases that only certain detectors are hit by cosmic rays. | The flux-loop servo can be reset on a per-detector basis without having to stop the data-acquistion in progress. This is particulary useful in cases that only certain detectors are hit by cosmic rays. | ||
| − | To schedule a reset, a per-detector flag can be set using '' | + | To schedule a reset, a per-detector flag can be set using {{param|rc|servo_rst_col0|servo_rst_col''#''}} parameter and then the {{param|rc|servo_rst_arm}} has to be set to 1. |
The reset involves setting the integral-term of the calculated feedback to 0, resetting the corresponding flux-jump counter to 0, and resetting the corresponding [[FSFB_Clamping_Command|'''integral_clamp''']] flag. | The reset involves setting the integral-term of the calculated feedback to 0, resetting the corresponding flux-jump counter to 0, and resetting the corresponding [[FSFB_Clamping_Command|'''integral_clamp''']] flag. | ||
For example to schedule a servo reset on col3, row 4, and col5, row 2: | For example to schedule a servo reset on col3, row 4, and col5, row 2: | ||
| − | wb rc1 servo_rst_col3 0 0 0 0 1 | + | wb rc1 servo_rst_col3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 |
| − | wb rc1 servo_rst_col5 0 0 1 0 0 | + | wb rc1 servo_rst_col5 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 |
wb rc1 servo_rst_arm 1 | wb rc1 servo_rst_arm 1 | ||
| + | |||
| + | == Bugs == | ||
| + | * Currently ([[Readout Card firmware|RC fw_rev]] 5.2.1 and 6.0.3), the per-pixel reset does not clear the filter, like a {{param|rc|flx_lp_init}} does. | ||
| + | * Currently ([[Readout Card firmware|RC fw_rev]] 5.2.1 and 6.0.3), resetting any pixel also resets all the pixels in the last row (as specified by {{param|sys|num_rows}}, ignoring {{param|ac|row_order}}). | ||
| + | |||
| + | [[Category:Readout Card Firmware]] | ||
Latest revision as of 18:26, 31 August 2016
The flux-loop servo can be reset on a per-detector basis without having to stop the data-acquistion in progress. This is particulary useful in cases that only certain detectors are hit by cosmic rays.
To schedule a reset, a per-detector flag can be set using servo_rst_col# parameter and then the servo_rst_arm has to be set to 1.
The reset involves setting the integral-term of the calculated feedback to 0, resetting the corresponding flux-jump counter to 0, and resetting the corresponding integral_clamp flag.
For example to schedule a servo reset on col3, row 4, and col5, row 2:
wb rc1 servo_rst_col3 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 wb rc1 servo_rst_col5 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 wb rc1 servo_rst_arm 1
Bugs
- Currently (RC fw_rev 5.2.1 and 6.0.3), the per-pixel reset does not clear the filter, like a flx_lp_init does.
- Currently (RC fw_rev 5.2.1 and 6.0.3), resetting any pixel also resets all the pixels in the last row (as specified by num_rows, ignoring row_order).
