hbox-docs/docs/descargas/hbox-v5-bringup-README.md

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hbox_v5_bringup — EinarBoard v5 first-flash bring-up firmware

Bench-proves a newly assembled v5 board over USB-C J11 only. Never powers the RTK stack. 0.5.0: Modo B in-band $PHLG (server Salud column) on top of the 0.4.0 field-minimum: AUTO by default (stack self-powers with 5 V on P2, kept on through 5 V loss), watchdog, fan, link recovery, LEDs; charge OFF. Bench mode: P+Y stack ON/OFF, n NMEA monitor (fix 4 = RTK FIX). Console (0.2.1): CR+LF lines, EVT on every state change, named STAT every 5 s, $PHLG every 10 s in the fleet v3.x layout (server-parseable). Checks: HSE 25 MHz + USB CDC · LSE Y4 · I2C: PCF8574 0x20 / SHT40 0x44 / TMP102 0x48 / SC16IS752 0x4D · gauge + RGB LED walk · ADC · digital inputs. Prints PASS/FAIL, then a STAT line every 2 s. Console commands: r rerun · g gauge walk · i I2C scan · h help.

Procedure for technicians (ES): 06-Testing-Validation/2026-09-15_Drogheda_EinarBoard-v5_Procedimiento-Prueba-y-Flasheo_ES_v1.0.md

Build

STM32duino core 3.x (STMicroelectronics:stm32). Target is the generic F411RE, not the Blackpill.

arduino-cli compile \
  --fqbn "STMicroelectronics:stm32:GenF4:pnum=GENERIC_F411RETX,usb=CDCgen,xserial=generic,rtlib=nanofp" \
  --build-property "build.extra_flags=-DHSE_VALUE=25000000UL" \
  --output-dir out hbox_v5_bringup

rtlib=nanofp is required — the default newlib-nano build prints nothing for %f, so every voltage and temperature line would be blank. SystemClock_Config() is overridden in the sketch (HSE 25 MHz → 96 MHz, USB 48 MHz) because the generic variant defaults to HSI, which is not accurate enough for USB.

Flash (DFU, J11)

Hold SW2 (BOOT0) → tap SW1 (RESET) → release SW2 → device 0483:DF11 appears.

dfu-util -a 0 -s 0x08000000:leave -D release/hbox-v5-bringup_0.5.0.bin

or STM32CubeProgrammer → USB → Connect → Download release/hbox-v5-bringup_0.5.0.bin @ 0x08000000.

Release

File Version SHA-256 (first 16) Size
release/hbox-v5-bringup_0.5.0.bin 0.5.0 (2026-09-18) — USE THIS (field-minimum + Modo B telemetry) 98656ddcc4e209e2 77 312 B
release/superseded/hbox-v5-bringup_0.4.0.bin 0.4.0 — superseded (no in-band telemetry) a8de74b3d7768e9d 75 524 B
release/superseded/hbox-v5-bringup_0.3.0.bin 0.3.0 — superseded (AUTO opt-in, no watchdog/fan/recovery) d4608c739cef2661 72 860 B
release/superseded/hbox-v5-bringup_0.2.1.bin 0.2.1 — superseded (no AUTO mode; stack OFF on 5 V loss) 78b34f4603550c05 70 084 B
release/superseded/hbox-v5-bringup_0.2.0.bin 0.2.0 — superseded (LF-only console, no EVT/$PHLG) 8491625d494f9ee1 64 780 B
release/hbox-v5-bringup_0.1.1.bin 0.1.1 — superseded (no bench mode) 91ca6f87a86686be 55 104 B
release/hbox-v5-bringup_0.1.0.bin 0.1.0 — SUPERSEDED (no float printf, ETH_CS driven) 1a9a77ae479c8f86 41 040 B

Changelog

  • 0.5.0 (2026-09-18) — Modo B: $PHLG in band. Once the stack is on and the F9P has been talking for 10 s, USART1 (PA10 tap / PA9) is started before K1 (PB5) is energised; the F9P TX2 stream then flows F9P → PA10 → MCU → PA9 → K1 NO → modem DIN byte for byte, and a $PHLG (same 24 fields) is injected every 30 s only after > 8 ms of line idle (a GGA is never split). Corrections modem → F9P stay on their direct wire. Fail-safe is hardware: PB5 low (reset, IWDG, any stack-off) = K1 NC = direct path. Prerequisites shipped with it: 256-byte UART rings (build_opt.h, static_asserted at compile), non-blocking SHT40 (two-phase kick/poll), console STAT/$PHLG deferred to line-idle gaps, K1 released before EEPROM.write (flash erase stalls the core) and before the r self-tests. B toggles Modo B (default allowed). STAT adds modoB= relay= phlg_aire=. Server: no change needed — retranslator._parse_phlg already accepts the sentence; units get the Salud column.
  • 0.4.0 (2026-09-17) — field-minimum ("-fm"): what a unit needs to be left on a machine for days without the production charge governor. AUTO is now the default (only the flash byte 0x5A means MANUAL; a virgin board powers the stack by itself). IWDG 16 s watchdog · fan policy = v3.0.3 (vehicle 5 V+ign → 100 %; battery → thermostat 48/45 C on the hottest sensor) · link recovery (no valid NMEA 60 s after a 90 s grace → 5 s stack cycle, max 1/5 min; RTK lost 15 min after having it → one cycle, max 1/30 min; 3 NMEA-loss cycles → LIMP, stack stays ON) · gauge DB1-4 (3.60/3.75/3.90/3.97 V, −0.10 hyst) + RGB state via PCF8574 (green RTK · blue on/no RTK · magenta on/no NMEA · yellow battery · red off) · thermal cut tbat/tntc ≥ 60 C, re-arm < 55 C, warning 50 C · low battery cut 3.40 V, re-arm 3.70 V or 5 V return · $PHLG now carries recoveries, limp, fan_pwm, state PWRCYC/SLEEP, link LIMP (verified against retranslator._parse_phlg + web_monitor badges). CHARGE STAYS OFF — the pack is one-shot until the production port.
  • 0.3.0 (2026-09-17): AUTO mode (A toggles, persisted in flash via STM32duino EEPROM emulation — survives reset and power loss; factory default = MANUAL). In AUTO the stack powers itself 3 s after 5 V is present on P2, no console needed. Battery-backup test: in AUTO, losing the 5 V input keeps the stack ON from the pack and logs EVT BACKUP inicio / BACKUP fin dur= nmea_durante= vbat= (NMEA continuity through the dropout = LTC4040 backup proven); stack dropped at vbat < 3.40 V or tbat/tntc > 50 C (AUTO(pausa) until 5 V is re-plugged). MANUAL keeps 0.2.x behaviour (stack OFF on 5 V loss). STAT adds modo= and backup=. Charge stays OFF in every mode. RAM +8 KB (EEPROM sector buffer).
  • 0.2.1 (2026-09-17): console made monitorable — every line ends CR+LF (no more PuTTY staircase); EVT up=… line on every state change (stack ON/OFF with reason and the expected voltages, ignition edge, 5 V present/lost, charger status/fault edges, first NMEA frame / NMEA lost >5 s, GGA fix-quality change, stack refused/cancelled); STAT every 5 s with named values (ign=ON, chrg=idle, flt=none, tntc=n/c, i2cerr=, t_on=, nmea=/bad=); $PHLG every 10 s + after each stack change, same 24-field layout + XOR checksum as fleet fw v3.x (verified against htracker/retranslator.py::_parse_phlg; fw=0.2.1-bu, state=BENCH|RUN, link=SRCH|DEGR|OK); NMEA checksum verified (bad frames counted as rxbad); P arms non-blocking (10 s window), Y confirms; new commands t ($PHLG now), l (field legend), v (multimeter checkpoints for the stack gate: SYS5V/PWR_CTRL/GATE_LS/SW_5V); stack auto-OFF if 5 V is lost; v5=…(BAJO) + EVT when VEH5V drops under 4.6 V (LTC4040 PFI zone: PFI divider R51 270k/R52 100k → 4.44 V falling, backup VSYS 4.79 V via R53 499k/R54 100k) — the 24-Jul modem-hiccup mechanism, now visible in the log. Build: no-op ctags + explicit definition order (arduino/ctags unreachable from the build host).
  • 0.2.0 (2026-09-17): bench mode for the assembled unit — P+Y powers the RTK stack (only with 5 V on P2), P again turns it off; n streams $GxGGA from the simpleRTK2B UART1 (PA3, 115200) for 20 s with fix/sats/HDOP; STAT shows stack= and the last GGA. Charge stays disabled, K1 released. Uses the core's Serial2 (USART2).
  • 0.1.1 (2026-09-16, audit): build with rtlib=nanofp (floats printed blank in 0.1.0); ETH_CS now INPUT_PULLUP instead of driving HIGH into the unpowered W5500; reset cause reports PIN only when PINRSTF is set (else UNKNOWN).
  • 0.1.0 (2026-09-15): first build.

⚠ Do not flash blackpillrtkcode_v3 (v3.0.3) on v5

Its PIN_BATLED1..4 = PB12–PB15 are the W5500 SPI2 bus on this board. board_v5.h is the verified v5 pin map — the production v5 firmware should include it rather than redefine pins.