SerialEthernetInterface.cpp is compiled for every nRF52 target because
PlatformIO builds all .cpp files under src/. It includes
SerialEthernetInterface.h, which unconditionally pulls in
<RAK13800_W5100S.h> -- a library only present in the RAK4631 Ethernet
env's lib_deps. As a result any other nRF52 board (e.g. Heltec T114)
fails to build with 'RAK13800_W5100S.h: No such file or directory'.
Wrap the contents of both files in '#ifdef ETHERNET_ENABLED' so they
compile to empty translation units on non-Ethernet builds. RAK4631
Ethernet envs define ETHERNET_ENABLED and are unaffected.
Fixes#2985
Improvements:
- Add condition to only turn off display if on (avoids wedging the shutdown on some displays)
- Reset LoRa radio before calling radio_driver.powerOff() to ensure it is in a known good state (and will accept the command)
- Ensure SPI is started so LoRa radio commands can be sent (some shutdowns can happen before this)
- Add gate for P_LORA_NSS pin defined before writing to the pin
After soaking for a bit on the adverts without issue on multiple nodes,
I added more hardware crypto.
Supported nodes is unchanged in this PR addition, but if others can verify,
they can easily be added.
Some info on the CC310: https://docs.nordicsemi.com/r/bundle/ps_nrf9151/page/cryptocell.html
**Added:**
- AES-128 packet encryption/decryption now use hardware crypto
- HMAC-SHA-256 authentication now uses hardware crypto
- ACK hash computation and channel ID derivation now use hardware crypto
- RNG (random number generator) now uses hardware crypto rather than
radio noise + weak software RNG (which can have issues if there's
no surrounding radio noise.) NIST SP 800-90B certified.
- Runs hardware self-tests on startup
- Runs continuous health tests during operation
- Uses thermal noise/shot noise for randomness
**Unchanged:**
- calcSharedSecret remains software - it would be a split hw/sw solution
and added complexity for likely not a lot of gains. This only happens
when establishing a new contact, so not too frequent to be worth it.
- ed25519_create_keypair remains software. This is only called when a
node is first initialized. It does use the hardware RNG change, however,
so better randomization.
Tested on (so far):
- Heltec t096
Build test on:
- Heltec t096 companion ble
- t1000e companion ble
- RAK 4631 repeater
- RAK 3401 companion BLE
- Heltec v3 companion wifi
next_check and next_gps_update stored a future millis() value in a signed
long and compared with a naive '>'. After the ~24.8-day millis() sign flip
the deadline sits above the wrapped millis(), so the block never runs again
and GPS->RTC time-sync (and the location cache refresh) stall permanently
until reboot. Switch to unsigned deadlines with the wrap-safe signed-
difference compare '(long)(millis() - deadline) > 0', matching the idiom in
Dispatcher::millisHasNowPassed.
Also: reorder the MicroNMEALocationProvider ctor init-list to declaration
order (silences -Wreorder) and drop the always-true 'if (_claims > 0)' guard
in claim() (claim() always runs after _claims++, so it is >= 1).
Previously load() returned true unconditionally on file-open success,
masking truncated or corrupt /regions2 files. Additionally, the first
field of each entry record (r->id) used the same success-chaining
pattern as subsequent fields, so a clean EOF at a record boundary set
success=false and would have been indistinguishable from real
corruption once the return value was fixed.
The r->id read is now split out: n==0 is a clean EOF (break, success
retains its prior value from the header read), n!=sizeof(r->id) is a
partial read or corruption (break, success=false). load() now returns
success instead of an unconditional true, so its return value reflects
the actual parse outcome.
Companion fix to #2372, which fixed the same return-true hardcoding
in save(). (#1891 originally reported this on load() but was closed
when #2372 landed — that PR only touched save(); this addresses the
load() side.)
hasSeen() was simultaneously a predicate and a mutator — it inserted the
packet hash on every miss, making five call sites that only wanted to mark
a packet as sent call it with the return value discarded.
Split into:
- wasSeen() — pure predicate, no side effects
- markSeen() — explicit insert
All query sites now call markSeen() immediately after wasSeen() returns
false, preserving identical runtime behaviour. The five mark-only send
sites (sendFlood, sendDirect, sendZeroHop x2) now call markSeen directly.
Also fixes three bridge sites (BridgeBase, ESPNowBridge, RS232Bridge)
that had the same query+implicit-insert pattern.
Tests: add test/test_mesh_tables/ covering wasSeen purity, markSeen,
dup stats, and clear. Update SHA256 mock to produce deterministic output
(previously finalize() was a no-op). Add Packet.cpp to native build filter.
- Added build flag "SX126X_USE_REGULATOR_LDO" (set to 1 to enable) to use LDO for the SX1262 radio instead of DC-DC when the DCDC pin isn't wired up (e.g. t-echo lite)
- Added additional debug mode diagnostic messages during SX1262 init to better highlight faults
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