MD-380 contacts, both ways: md380tools user DB and codeplug contact fill

[ww8l]

Two ways to get DMR users into a TYT MD-380, from the local DMR Contacts library.

User DB (md380tools patched firmware)

• Builds md380tools' linear user database (prioritized, sorted by ID, 15 MB cap; the lowest-priority users are left out and counted) and writes it to SPI flash at 0x100000 via the patched firmware's DFU block-1 commands, then reads it all back.
• Refused before anything is sent unless the USB strings say patched firmware and the chip is the 16 MB part. Every erase/write is bounds-checked above the codeplug in protocol.rs.
• The firmware drops an erase sent while the chip is busy; each block is polled and the erase resent.
• Refused on Windows: TYT's STTub30 driver does not expose the USB strings.
• Hardware-proven on Tim's UHF MD-380: 269,452 users written and read back, codeplug intact.

Codeplug contacts (stock firmware)

• "Fill spare contacts with DMR users" under Channel set adds prioritized users as Private contacts after the codeplug's talkgroups, up to the radio's 1000.
• Hardware-proven: verified, and the radio's Contacts list shows the talkgroups then the users.

Also

• Program dialog gains a User DB card; the AnyTone's DMR-user picker is now a shared DmrUserPicker.
• write_callsign_db resolves the radio from the codeplug (no profile needed); CallsignDbReport.verified says whether the driver read it back.
• Not on hardware: a VHF MD-380 (no unit to test).

🤖 Generated with Claude Code