Dislord, the talented Russian coder, who collaborated with edy555 on his recent 0.7.0 firmware release has uploaded a beta 0.8 firmware with the following Google directly translated Russian comments:
" After edy555 added my font fixes, optimized space in RAM, I was offered many fixes regarding the speed, functionality and optimization of resources
In this beta firmware I added the color command, accelerated the speed of display and scanning, eliminated artifacts when displaying, accelerated marker and included display of the marker data when driving, eliminated problems with third-party software and more (as was the limit on the size of the site) add something else, 80% of the code was rewritten, as a result released about 18kB pso (Flash?) and 3kB oz (RAM?), which will give the opportunity to further build up the functionality) I post the current beta version at .
What is interesting, since the library for the generator has been rewritten, and the scanning has been significantly accelerated (but the stability must be improved), I would like to check whether everything has become good or bad (it is desirable to make a comparison with firmware from edy555 v0.7 and the last from hugen) the firmware is suitable for the original NanoVNA and NanoVNA-H, but not suitable for F or H4 (there is another processor and screen).
Maybe (if I buy the H4 version) I'll adapt the changes for it as well.
PS despite the faster-acting processors in the F and H4 versions, they don't work faster (the larger screen is a big load on the data processor) and the original NanoVNA bottleneck had a lack of resources (which was eliminated), as most of the time (about 60% of the time) the processor is idle waiting for the results of measurements, which has been much improved. " End of Quote
I loaded the beta firmware version on my NanoVNA-H without any problems using DFU-Demo. Screen update is faster and none of the display artifacts observed in previous firmware versions was noted during limited testing. This is a beta firmware version release so any bugs should be reported to DisLord's GitHub page. If you are not adventurous I would suggest waiting for edy555's official 0.8.0 release. Reiterating DisLord, please note that this beta firmware release is not for the NanoVNA-H4 or NanoVNA-F because they use different processors and screen sizes than the NanoVNA-H.
- Herb
