The save and file-open requests used their own fixed resend intervals
(5 s / 15 s) and the hello asked for 256-byte packets. Ontrol's Sedona
Java stack does neither and works with the P-ION: the standard backoff
(1, 2, 4, 8 s) sends a busy device a few copies with the same seqNum,
which its receive window drops. Both are removed.
Also fixes a race in SendWindow.send(): the packet entered the window
before its payload and sent_time were set, so housekeeping could resend
it with an empty payload, and the device would then drop the real one
as a duplicate.
Tested on a P-ION at 192.168.1.252, App > Get with File: save 3.2 s
(2 resends), app.sab + kits.scode in 11.3 s with 500-byte chunks
(was 14.6 s at 256), device stayed up, files identical to a 256-byte
backup.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
A real P-ION (fw 1.32) restarted on every Sox file get. Ontrol's Niagara 4
driver gets app.sab from the same device, so its settings are copied:
- DASP hello asks for 256-byte packets (idealMax/absMax), so file chunks
are 238 bytes
- the message-length header (0x81) goes to Orion only, decided once the
platform id is read
- the app is saved on the device before app.sab is read, the save resent
every 5 s rather than 1 s (a P-ION save takes 2-3+ s)
- the file open is resent every 15 s; DASP gains a per-packet resend
interval for this
Tested on a P-ION at 192.168.1.252: save 3.2 s, app.sab + kits.scode +
app.sax in 15.8 s, no resends, device stayed up. The unsaved-changes
question became a notice, since the app is now always saved first.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Reads app.sab and kits.scode over Sox file transfer, decodes app.sab to
app.sax (byte-identical to sedonac), and on Orion/Rion also fetches the
images and fonts the app names, with their sources from Sedona home's
banks. Offers to save the app on the device first when it is dirty, and
asks where to save with <Sedona home>/store/apps and
app-<device>-<app>-<timestamp>.zip filled in.
DASP trace lines are now printed by their own thread: printing from the
network threads to an unread stdout pipe blocked the receiver and made
file transfers time out.
Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Authentication failures now show "check username and password", busy
devices say "device is busy", etc.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Send DISCOVER broadcast (type 0) to 255.255.255.255 and the Sedona
multicast address 239.255.18.76 to find devices on the network.
Responses are listed in a Treeview showing IP and platform ID.
Selecting a device fills the Host field; double-click connects.
Wait time is configurable (default 10s, range 1-60s).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
The dispatch check compared the raw hostname string against the UDP
source IP, silently dropping responses when they differed (e.g.
"localhost" vs "127.0.0.1"). Resolve hostname to IP at session init.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Use RLock instead of Lock for _close_lock so close() can call
_shutdown() without deadlocking — previously the session never
marked itself closed, causing infinite keepalive sends.
Mask kit checksums to unsigned 32-bit for hex display so negative
i4 values render as proper 8-digit hex (e.g. d3984c51 not -2c67b3af).
Tested against live device at 192.168.1.251 — full handshake,
schema read, and component tree load confirmed working.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
New checkbox in Preferences (default off). When enabled, every DASP
send (>>>) and receive (<<<) prints message type, seq/ack numbers,
payload size, and remote address to stdout.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Port the DASP transport and Sox protocol stack from sedonaOntrol Java
to Python, enabling live device editing alongside the existing offline
SAX editor. Lazy-loads components on navigation, caches them, and
subscribes to COV events for the active wiresheet.
New files: dasp.py, sox.py, device_session.py, connect_dialog.py,
live_hooks.py. Modified: app_state.py (live-mode state), main.py
(Device menu, COV polling, lazy tree expand), properties.py (Sox
write-through), sax_file.py (structural mutations route through
live_hooks), schema.py (find_manifest helper).
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
ArdaandClaude Opus 5.5