Write an ophyd-async device against the fastcs eiger

[DominicOram]

We would like to move the eiger on to the new fastcs version as well as move our device support to ophd_async. We should do both of these at the same time. You can run a simulated fastcs eiger and odin by running (in separate terminals):

Local Eiger dev deployment:
Make sure you've done https://dev-portal.diamond.ac.uk/guide/containers/tutorials/podman/#enable-use-of-vscode-features

Odin deployment + tickit sim

podman run --rm -it -v /dev/shm:/dev/shm -v /tmp:/tmp --net=host ghcr.io/diamondlightsource/eiger-detector-runtime:1.16.0beta5

Eiger IOC

mkdir /tmp/opi
podman run --rm -it --net=host -v /tmp/opi/:/epics/opi ghcr.io/diamondlightsource/eiger-fastcs:0.1.0beta5 ioc EIGER-$YOUR_HOST_NAME

Odin IOC

podman run --rm -it --net=host -v /tmp/opi/:/epics/opi ghcr.io/diamondlightsource/odin-fastcs:0.2.0beta2 ioc ODIN-$YOUR_HOST_NAME

UI

module load phoebus && phoebus.sh -resource /tmp/opi/eiger.bob -resource /tmp/opi/odin.bob

Additionally, there is already an eigerIOC running on i04 at BL04I-EA-EIGER-02:, see https://diamondlightsource.slack.com/archives/C0176UKVBCK/p1721376023655459

i03 does not yet have the new eiger so we will need the old one around for a while still

Acceptance Criteria

• There is an ophyd_async eiger device that replicates the same functionality as the current ophyd device
• This works against the simulator
• We change i04.py to use this and dodal connect i04 still passes This might be hard as it doesn't have the odin IOC there yet

[DominicOram]

More info on https://diamondlightsource.slack.com/archives/C0176UKVBCK/p1721376023655459

[DominicOram]

• Try and mainatin plan level compatibility between this and the old one
• We think Large

[DominicOram]

Gary successfully tested with

caput -S ODIN:FP:DatasetDataCompression BSLZ4
caput -S ODIN:FP:DatasetDataDatatype uint16
caput ODIN:FP:ProcessFramesPerBlock 1000
caput ODIN:FP:ProcessBlocksPerFile 1
caput -S ODIN:FP:ConfigHdfFilePath /tmp
caput -S ODIN:FP:ConfigHdfFilePrefix test
caput ODIN:FP:ConfigHdfFrames 3600
caput ODIN:FP:ConfigHdfWrite 1

caput -S EIGER:TriggerMode ints
caput -S EIGER:HeaderDetail all
caput EIGER:Nimages 3600
caput EIGER:FrameTime 0.01
caput EIGER:CountTime 0.0099
caput EIGER:Arm 1

caput EIGER:Trigger 1

[DominicOram]

From discussion with Gary:

• The new IOCs bare no relation to AreaDetector
• This is hopefully cross-facility so put in ophyd-async
• Deployed on i04 is just the new eiger IOC, not the new odin one

[DominicOram]

Initial MVP completed in bluesky/ophyd-async#528. A number of spin off issues were made https://github.com/bluesky/ophyd-async/issues?q=is%3Aissue+is%3Aopen+eiger. I'm going to leave this issue here to track it from the downstream perspective but waiting on others to do bluesky/ophyd-async#405 and bluesky/ophyd-async#551 before continuing the work