| Products > Test Equipment |
| Oscilloscope Zoom Out Quirk |
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| Elasia:
--- Quote from: tautech on June 13, 2020, 10:40:46 pm ---Way ahead of you on this.......any capture first needs available memory .......but it's already assigned for post trigger History ! Zoom out capture memory depth requirements cannot grab memory from thin air...it's already being used...post trigger ! So to implement capture zoom out another memory management strategy need be developed and this is being discussed privately. Got a clever plan, we're all ears. :popcorn: --- End quote --- --- Quote from: tv84 on June 14, 2020, 08:50:47 am --- --- Quote from: EEVblog on June 14, 2020, 08:22:15 am ---When the user manually selects a memory size then you damn well obey that and set that memory size, at any timebase, just like every other scope on the market. If there is any memory left over feel free to use for auto history mode. --- End quote --- This basically sums it all up. Talking about "auto history mode": when I select manual gear I don't expect the car to switch to auto just because ... --- End quote --- +1 And yes it needs memory... so where is it getting that memory in zoom mode? It was already assigned to buffering.. because the user said they wanted zoom mode.. this is zoom mode without all the fancy UI.. hell.. use the zoom button for it and just make a right side UI control panel for it.. aka another zoom ui if hiding the other parts.. then let the user default that mode if they choose |
| tautech:
--- Quote from: EEVblog on June 14, 2020, 08:25:32 am --- --- Quote from: tautech on June 13, 2020, 09:06:47 pm ---The only worry is how any zoom out feature might be implemented for those having trouble to adapt the existing tool set as it could possible impact on the features already available. We don't want that. --- End quote --- This has nothing to do with zoom out, and everything to do with the inability and downright refusal of the scope to use the memory depth the user manually specifies. --- End quote --- RTFM P 81. |
| tautech:
--- Quote from: nfmax on June 14, 2020, 08:43:30 am --- --- Quote from: EEVblog on June 14, 2020, 08:25:32 am --- --- Quote from: tautech on June 13, 2020, 09:06:47 pm ---The only worry is how any zoom out feature might be implemented for those having trouble to adapt the existing tool set as it could possible impact on the features already available. We don't want that. --- End quote --- This has nothing to do with zoom out, and everything to do with the inability and downright refusal of the scope to use the memory depth the user manually specifies. --- End quote --- I suspect the amount of memory that can be used varies with timebase speed, in which case the menu entries for memory size selection would have to change appropriately. If the firmware uses fixed string lists for menu entry definition, this may be difficult (but not impossible). --- End quote --- :clap: And you worked that out without RTFM. :-+ |
| tautech:
--- Quote from: Elasia on June 14, 2020, 09:02:58 am --- --- Quote from: tautech on June 13, 2020, 10:40:46 pm ---Way ahead of you on this.......any capture first needs available memory .......but it's already assigned for post trigger History ! Zoom out capture memory depth requirements cannot grab memory from thin air...it's already being used...post trigger ! So to implement capture zoom out another memory management strategy need be developed and this is being discussed privately. Got a clever plan, we're all ears. :popcorn: --- End quote --- And yes it needs memory... so where is it getting that memory in zoom mode? It was already assigned to buffering.. because the user said they wanted zoom mode.. this is zoom mode without all the fancy UI.. hell.. use the zoom button for it and just make a right side UI control panel for it.. aka another zoom ui if hiding the other parts.. then let the user default that mode if they choose --- End quote --- Seems I missed the full meaning of you earlier post but rf-loop didn't and it seems a very valid solution. :-+ |
| Fungus:
--- Quote from: tv84 on June 14, 2020, 08:50:47 am ---when I select manual gear I don't expect the car to switch to auto just because ... --- End quote --- Yet another argument solved by an automotive analogy... :-+ |
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