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FastRIO certified: 31250v2 final runs clean; config plumbing for baud/poll

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Operator-verified zero lamp misses/hangs through the slow-chord test
(62500's killer) and 392/min mash. Final run: NAK=0, 25 timeout resends
silently healing inbound response loss, counters flat, zero wedges.
--poll 20 delivered ~31Hz analog (1.7x legacy); the shortfall vs 50Hz
is additive host pacing (delay after awaited exchange), not board
saturation - noted as a future host tweak.

AppConfig gains RioBaudRate (default 9600) + AnalogPollMs (default 55),
plumbed through RioCoordinator; existing configs unchanged. Production
matrix recorded in ANALYSIS.md: 9600 patched chip for native-game
cabinets, 31250v2 + poll 20-25 + FTDI for RIOJoy cockpits.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
Cyd
2026-07-19 14:19:30 -05:00
co-authored by Claude Fable 5
parent 3c9455eb97
commit d95e390b0d
3 changed files with 87 additions and 0 deletions
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RIOv4_2-ANALYSIS.md
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@@ -374,3 +374,34 @@ The stop-and-wait + typed-resolution machinery stays enabled at every
rate as delivery insurance (it hardens 9600 production cabinets against rate as delivery insurance (it hardens 9600 production cabinets against
ordinary electrical noise, and its retries are near-zero on clean links). ordinary electrical noise, and its retries are near-zero on clean links).
62500 images remain in the repo for future firmware work. 62500 images remain in the repo for future firmware work.
## FINAL CERTIFICATION (2026-07-19) — 31250 v2 ships
Operator-verified at 31250 v2 with stop-and-wait active: **zero lamp
misses/hangs** through the slow-chord test (the exact scenario that
condemned 62500) and a 392-presses/min mash.
`testlogs/riomash-31250v2-final`: analog 89.0% (structural), **NAK = 0**,
25 resends — all timeout-triggered, i.e. the retry machinery silently
healing occasional INBOUND response loss (29 host-side framing events),
which is exactly the insurance it exists to provide. Counters flat,
zero wedges, gaps <100ms except run-start/stop artifacts.
`testlogs/riomash-31250v2-poll20` (--poll 20): delivered ~31 Hz analog
(2036 replies/65s) vs the legacy 18 Hz — 1.7×. The 62.6%-of-slots figure
is a host artifact, not board saturation: the poll loop delays AFTER each
awaited exchange (~6-9 ms), so the real cadence is interval+exchange.
Absolute-schedule pacing would approach 40+ Hz; ~94% of actually-issued
polls were answered. Future host tweak, not firmware.
### Production configuration
| deployment | chip | config.json |
|---|---|---|
| native-game cabinets | `RIOv4_2_patched.bin` (9600) | defaults (RioBaudRate 9600, AnalogPollMs 55) |
| RIOJoy-only cockpits (FastRIO) | `RIOv4_2_patched_31250v2.bin` | RioBaudRate 31250, AnalogPollMs 20-25, FTDI-class adapter |
AppConfig.RioBaudRate + AnalogPollMs are plumbed through RioCoordinator;
stop-and-wait delivery is always on (near-zero cost on clean links).
Firmware images, hashes, disassemblies, the mechanized mash harness, and
all eleven bench logs live in this directory. The original AMD chip is
retired, preserved unmodified.
testlogs/riomash-31250v2-final-20260719-141437.log
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== RIO mash test :: COM1 @ 31250 8N1, 300s, chip label '31250v2-final' ==
lamp echo ON (drives reply/lamp collisions), wedge threshold 2.0s, poll 55ms, app auto-recovery DISABLED
log: C:\VWE\riojoy\riomash-31250v2-final-20260719-141437.log
firmware: 4.2
counters before: RestartCount=0 AbandonCount=0 FullBufferCount=0 [board/lamp faults reported!]
>>> MASH NOW: two hands, 8 lamp buttons, as fast as you can. <<<
>>> Test runs 300s. A wedge alarm will beep + banner. <<<
>>> Ctrl+C ends the run early and still prints the summary. <<<
[ 31.83s] progress: presses=157 (157/min) analog=500 maxGap=0.28s wedges=0
[ 61.84s] progress: presses=432 (419/min) analog=976 maxGap=0.28s wedges=0
[ 65.45s] operator stop (Ctrl+C) — ending run, snapshotting counters...
== MASH SUMMARY [31250v2-final] ==
run : 65s on COM1, lamps on, wedge threshold 2.0s
firmware : 4.2
presses/releases : 436 / 436 (392 presses/min)
analog replies : 1051 (~1181 poll slots; 89.0%), sentinels 0
framing / NAK : 29 / 0 (command resends NAK/timeout: 25)
gap histogram : <100ms:1048 100-250ms:0 250-500ms:2 0.5-1s:0 1-2s:0 2-5s:0 >5s:0
longest gaps : 0.33s@65.4s, 0.28s@0.6s, 0.09s@45.0s, 0.08s@19.8s, 0.08s@22.4s, 0.08s@41.7s, 0.08s@24.5s, 0.08s@8.5s, 0.08s@37.5s, 0.08s@14.6s
wedge events : 0
counters before : RestartCount=0 AbandonCount=0 FullBufferCount=0 [board/lamp faults reported!]
counters after : RestartCount=0 AbandonCount=0 FullBufferCount=0 [board/lamp faults reported!]
counter delta : RestartCount=+0 AbandonCount=+0 FullBufferCount=+0
verdict : PASS — no wedge; compare gap histogram + counter delta to baseline
log file : C:\VWE\riojoy\riomash-31250v2-final-20260719-141437.log
testlogs/riomash-31250v2-poll20-20260719-141620.log
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== RIO mash test :: COM1 @ 31250 8N1, 120s, chip label '31250v2-poll20' ==
lamp echo ON (drives reply/lamp collisions), wedge threshold 2.0s, poll 20ms, app auto-recovery DISABLED
log: C:\VWE\riojoy\riomash-31250v2-poll20-20260719-141620.log
firmware: 4.2
counters before: RestartCount=0 AbandonCount=0 FullBufferCount=0 [board/lamp faults reported!]
>>> MASH NOW: two hands, 8 lamp buttons, as fast as you can. <<<
>>> Test runs 120s. A wedge alarm will beep + banner. <<<
>>> Ctrl+C ends the run early and still prints the summary. <<<
[ 31.97s] progress: presses=63 (63/min) analog=986 maxGap=0.51s wedges=0
[ 62.02s] progress: presses=314 (304/min) analog=1890 maxGap=0.51s wedges=0
[ 65.66s] operator stop (Ctrl+C) — ending run, snapshotting counters...
== MASH SUMMARY [31250v2-poll20] ==
run : 65s on COM1, lamps on, wedge threshold 2.0s
firmware : 4.2
presses/releases : 318 / 318 (285 presses/min)
analog replies : 2036 (~3250 poll slots; 62.6%), sentinels 0
framing / NAK : 73 / 0 (command resends NAK/timeout: 57)
gap histogram : <100ms:2032 100-250ms:1 250-500ms:1 0.5-1s:1 1-2s:0 2-5s:0 >5s:0
longest gaps : 0.51s@0.7s, 0.29s@65.7s, 0.13s@50.6s, 0.08s@55.1s, 0.07s@50.9s, 0.07s@50.7s, 0.07s@50.8s, 0.07s@54.3s, 0.06s@48.5s, 0.06s@57.9s
wedge events : 0
counters before : RestartCount=0 AbandonCount=0 FullBufferCount=0 [board/lamp faults reported!]
counters after : RestartCount=0 AbandonCount=0 FullBufferCount=0 [board/lamp faults reported!]
counter delta : RestartCount=+0 AbandonCount=+0 FullBufferCount=+0
verdict : PASS — no wedge; compare gap histogram + counter delta to baseline
log file : C:\VWE\riojoy\riomash-31250v2-poll20-20260719-141620.log