UVStudio's own js/flash.js names the protocol: MSG_APP_INFO 0x0730/0x0731, MSG_APP_ERASE 0x0732/0x0733, MSG_APP_WRITE 0x0734/0x0735, MSG_APP_VALIDATE 0x0736/0x0737, with APP_SLOT_COUNT 16, APP_IMG_OFFSET 0x1000, APP_HDR_SIZE 64 and APP_MAGIC 0x31504146 -- the constants this page already used. It uses slots 0..7 and labels them 1..8, and writes the header last so a partial write cannot validate; the page now labels slots the same way.
The Labs build answers 0x0730 over USART, so an installed Beam.app was queried on the radio: slot 0 came back status 0 with the header this page wrote (FAP1, code_size 1100, CRC 0x0d976058, flags 0x0801, name Beam), which confirms the region, the offset and the layout from the firmware's side rather than from a header I read. Slots 1 and 2 answered status 2 with unrelated data -- the overlap the install guard refuses to overwrite.
mckero
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