DSDPlus fmpp sdrplay api update ?

[n9mfk]

hi all,
I have a question about fmpp.exe I known sdrplay just updated there api can i just update the dll or do i need to wait for a updated exe
thanks Beau

 

[slicerwizard]

I'd wait for an updated FMPP. Otherwise, you might end up with a non-functional FMPP...

 

[thewraith2008]

I'd wait for an updated FMPP. Otherwise, you might end up with a non-functional FMPP...

API 2.13 uses the file 'mir_sdr_api.dll'
API 3.03 uses the file 'sdrplay_api.dll' and is delivered as a service.
Looking at the the API documentation, 3.03 seems to use a different initialization procedure ( must start with sdrplay_api_Open() )

Most likely FMPP currently uses API 2.13 (not mentioned in Notes.txt, only that it's for SDRPlay RSP2 receivers) so waiting for new FMPP to use the new API is most likely in order.
Also, if nothing has changed to the functions DSDPlus are using from the API in FMPP, then I wouldn't expect them to change anything.

 

[slicerwizard]

The most recent FMPP uses API Service version 3.03; I just updated to 3.04 and FMPP threw an error and hung until I closed the spectrum window, which shut down FMPP. Reinstalled 3.03 and back to normal.

If the API version changes, how is FMPP supposed to know if any of the functions changed? Is there a flag somewhere? Those functions return pointers to data structures - what happens if those structures have changed? Seems like proceeding blindly would be iffy.

 

[thewraith2008]

If the API version changes, how is FMPP supposed to know if any of the functions changed?

It can't know, other than a error message/freeze/hang/crash.

Is there a flag somewhere? Those functions return pointers to data structures - what happens if those structures have changed? Seems like proceeding blindly would be iffy.

Agreed

Seems v3.04 changes are the following:

Update for diversity and other performance improvements

- New AGC scheme.
- Fixes to RSP1 and RSPduo control.

What functions, structs or whatever are affected by this change is not stated in document. (SDRplay_RSP_API_Release_Notes_V3.04.pdf)
In any case, the new API won't work with the current FMPP as you have demonstrated and which the OP could have just done himself by trying. If it doesn't work re-install previous API.