Data mode
Table of data modes
code | Brief | pixel-data description |
---|---|---|
0 | Error | 32b (signed) co-added Error signal, sample_num*(adc_reading – adc_offset) |
1 | Feedback |
32b (unsigned) SQ1 Feedback data. When servo_mode =3, this is the PID calculation result which has 12 more bits of accuracy than the actual 14b SQ1 feedback applied. |
2 | Filtered feedback |
32b (unsigned) SQ1 filtered feedback data. Low-pass-filtered SQ1 feedback data. |
3 | Raw 50 MHz | Raw data, 50MHz ADC samples in signed 8b format prescaled by 2^6 |
4 | 18:14 Mixed |
Signed 18b SQ1 feedback [bits 31:14] + signed 14b coadded error signal [bits 13:0] The feedback reported in this mode is scaled by 1/2^12 compared to data_mode=1. |
5 | Signed 24b SQ1 feedback [31:8] + signed 8b num_flux_jumps [7:0]
The feedback reported in this mode is scaled by 1/2^8 compared to data_mode=1. | |
6 | Signed 18b filtered data + signed 14b coadded error signal
The filtered data in this mode is scaled by 1/2^10 compared to data_mode=2 (to partially eliminate the filter gain of ~1216). | |
7 | Signed 22b filtered data + signed 10b coadded error signal prescaled by 1/2^4
The filtered data in this mode is scaled by 1/2^7 compared to data_mode=2 (to partially eliminate the filter gain of ~1216). | |
8 | Signed 24b filtered data + signed 8b num_flux_jumps
The filtered data in this mode is scaled by 1/2^8 compared to data_mode=2. | |
9 | Signed 24b filtered data + signed 8b num_flux_jumps
The filtered data in this mode is scaled by 1/2 compared to data_mode=2. |