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Release fw 0.8.5: BT1035 I2S boot init and hardware doc alignment.

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Switch BT1035 bring-up from Line-In to I2S slave (AT+AUXCFG=3, AT+I2SCFG=67) to match the ADAU1701 PCM routing, confirm 2 kΩ I2C pull-ups on R1/R16, and sync firmware docs, AGENTS rules, and the DATASHEET bundle.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
michele
2026-07-08 14:41:31 +02:00
co-authored by Cursor
parent 3e46b06d4b
commit 0a1188ad66
22 changed files with 244 additions and 125 deletions
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Software/AGENTS.md
+5 -3
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@@ -397,9 +397,11 @@ Layered, dependencies point inward only:
- Controlled by AT commands over UART. Build commands with a typed
builder; parse responses with explicit `OK`/`ERROR`/timeout handling.
- **Line-In mode is mandatory:** the `AT+AUXCFG=1` step must be part of
the documented init sequence and covered by a test on the command
string. Losing it silently breaks the audio path.
- **I\textsuperscript{2}S slave mode is mandatory:** `AT+AUXCFG=3` and
`AT+I2SCFG=67` (Feasycom programming guide §5.1.25 / §5.1.4) must be part
of the documented init sequence and covered by host tests. The PCB routes
ADAU I\textsuperscript{2}S to the module; `AT+AUXCFG=1` (Line-In) does not
match the schematic.
- The AT subset in use is enumerated and documented; unknown responses
are an error value, not ignored.