I transfer tinySA firmware to NanoVNA-H4 platform
Now possible use H4 platform (STM32F303 CPU + 4` display module) for next tinySA generation
You can flash it to H4 and see how it work (yes no any tinySA hardware on H4, and you not see spectre, but all menus work, sweep times and e.t.c)
H4 allow SD card, so in next tinySA possible save something to it
PS STM32F303 have hardware FPU, and in it SI4432 run on hardware SPI mode, so it allow moew fast work, minimum Zero Span time = 700us, also values convert (if use Volt for example) less slowdown.
