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- What has already been done?
- Sharon has shown that HDF5 file writing in "Streaming" mode is very fast.
- Now we want to extend capability for scans so that we have 1 file per camera.
- How to save scan image data into HDF5 file?
- Use PVs:
- extraDimSizeN = Number of shots per step
- nExtraDims = Number of scan dimensions (0 = simple DAQ, 1 = 1D scan, 2 = 2D scan . . .)
- extraDimSizeX = Number of steps for Dim 1
- extraDimSizeY = Number of steps for Dim 2
- extraDimSize3 = Number of steps for Dim 3
- . . .
- These PVs implicitly control the NumCapture PV
- NumCapture_RBV = extraDimSizeN * extraDimSizeX * extraDimSizeY * . . . (depending on number of nExtraDims)
- Use PVs:
- In this scheme, we have to carefully control the triggers so that each scan step gets exactly the right number
- We will use a new feature to do this:
- EVNT:SYS1:1:PMAQCTRL.H = extraDimSizeN = Number of shots per step
- EVNT:SYS1:1:PMAQCTRL.E = 0/1 to stop/start triggers to cameras
- Need to toggle back to 0 after every step
- Set EVNT:SYS1:1:PMAQCTRL.H back to zero at end of scan
- We will use a new feature to do this:
- What happens if the camera does not receive all triggers?
- Then scan steps are kind of messed up . . . think about how best to handle this with pulse ID
- Prefer "NDArrayUniqueId" to be "NDArrayPulseId"
- Make caput/lcaPut/lcaPutSmart consistent
- "BSA buffer" for UV spectrometer IOC?
Bugs and Robustness
| Issue | Person | Priority | Status |
|---|---|---|---|
| Background not being saved | Sharon | High | DONE |
| Not saving non BSA data and getting F2_EventClass error | Sharon | High | |
| Implement HDF5 file saving for images | Sharon | High | Testing |
| N/A | |||
| Calculate how much space on disk is required | High | ||
| Install 10G switch and NAS in S10 | Arjun | High | Planning |
| Check what happens if new DAQ is started before old one is finished (failed abort) | High | ||
| Fix binning and ROI for CMOS cameras | Medium | ||
| Can't get magnet values on first DAQ? | Medium | ||
| Check that the beam rate is not equal zero if rate set to "BEAM" | Spencer | Medium | |
| Fix "Use_PV" functionality. | Sharon | Medium | DONE |
| Fix camera triggers if DAQ fails. | Sharon | High | DONE |
| "Fix cameras" button disabled if DAQ hasnt run yet | Sharon | Medium | DONE |
| "Fix cameras" button should use default values? - yes | Sharon | Medium | DONE |
| Timestamping fails on certain ROI settings? | Spencer | High | DONE |
| Upgrade all machines in S20 to 10G connection | Spencer | Medium | DONE |
| Camera binning messes up pulse ID finding | Spencer | Medium | DONE |
...