Add BodyEmulator sketch; refactor shared code into lib/#4
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Add BodyEmulator sketch; refactor shared code into lib/#4jenogc wants to merge 1 commit intoLexOptical:masterfrom
jenogc wants to merge 1 commit intoLexOptical:masterfrom
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Restructures the project into three components that maximise code reuse:
lib/
Shared protocol library used by both sketches:
- Constants.h pin assignments, protocol constants, lens response payloads
- DebugTools.h generic writeSerialDebugable(port, ...) replacing the
Serial1-specific writeSerial1Debuggable; fixes latent bug
where flushDebugOutputBuffer checked debugInputBufferPosition
instead of debugOutputBufferPosition
- Message.h/.cpp, Message05.h/.cpp unchanged from original
LensEmulator/
Former E-Mount.ino updated to use lib/ includes, the new debug helper
signatures, and the named pin constants from Constants.h. LISTEN_ONLY
and emulation modes work as before.
BodyEmulator/
New sketch that emulates a Sony E-Mount camera body:
- Generates a 60 Hz VD clock on PIN4 via Teensy IntervalTimer
- Drives BODY_CS_LENS (PIN3) and monitors LENS_CS_BODY (PIN2)
- Sends body->lens messages on Serial2 TX (PIN10)
- Receives lens->body responses on Serial1 RX (PIN0)
- State machine: CS handshake -> init sequence (0x01..0x10) ->
normal mode with periodic 0x04 queries
- Public API: requestAF(position), requestAperture(value)
- Parses 0x05 responses for aperture and AF position
README updated with repo layout, mode comparison table, and per-mode
pin assignment table.
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Author
|
I haven't tested any of this on hardware yet. The idea is to emulate both camera and lens and move all common code shared between the emulators to a shared location. PR will remain in draft form until I have time to build the hardware and test this PR |
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Summary
lib/(Constants, DebugTools, Message, Message05) so both sketches stay in sync automaticallyLensEmulator/— the original sketch updated to uselib/and named pin constantsBodyEmulator/— new sketch that emulates a camera bodyBodyEmulator details
Wiring (Teensy 3.5):
Behaviour:
IntervalTimer0x01, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0D, 0x10in sequence; state machine advances on each lens response0x04lens-data queries each VD windowrequestAF(position)andrequestAperture(value)queue a0x03command for the next window0x05responses and logs aperture value and AF position bytes to SerialAlso fixes a latent bug in
DebugTools.hwhereflushDebugOutputBuffercheckeddebugInputBufferPosition(always 0) instead ofdebugOutputBufferPosition, causing it to always print "no message".Test plan
requestAF()produces a 0x03 message on the wirerequestAperture()via packet capture and update TODO comment🤖 Generated with Claude Code