uzbek-plus/logs/b10/b10b0/cal-ram2-analysis.txt
q 58dcb3d121 B10: battery charging — PM8916 LBC supervisor v4 (CHARGE/HOLD, FAULT safe clamp to 4.00 V) and persistent B10B-5 cache
- LBC supervisor v1..v4 (linux/patches/b10b3-lbc-supervisor-v3.patch + b10/b10b3/lbc-v3-to-v4-fault-clamp.diff):
  CHARGING 4.20 V/450 mA -> HOLD 4.05 V after 60 min CV -> battery -> new cycle on USB insert; FAULT = VDD_MAX 4.00 V clamp
- RAM tests C/B/D/D2/D3/D4 (safety timer only ends fast charge), B10B-4 actuator audit (VDD_MAX works, USB_SUSP does not),
  B10B-5 FAULT clamp regression, production run, warm reboot via PON reboot reason
- cache = B10B-5 c3732515 (HW EDL write, readback + full partition verify), class-A persistent validation
- test-only hooks/images are not part of the production kernel; images with the AP PSK are not published
2026-10-04 19:00:27 +03:00

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VADC cal (driver refs this boot): 96.272 uV/code at ADC input; VBAT = 3 x (625000 + (raw-31246) x k)
n raw6 VBAT_vadc raw7 VPH(raw) VPH(drv) FIFO_newest
1 37751 3.7538 37741 3.7509 3.7488 13134
2 37750 3.7535 37720 3.7448 3.7598 13134
3 37754 3.7546 37777 3.7613 3.7538 13183
4 37724 3.7460 37744 3.7517 3.7532 13190
5 37688 3.7356 37746 3.7523 3.7514 13190
6 37758 3.7558 37758 3.7558 3.7561 13190
7 37749 3.7532 37734 3.7488 3.7324 13190
8 37755 3.7549 37695 3.7376 3.7546 13195
9 37690 3.7361 37753 3.7543 3.7546 13195
10 37755 3.7549 37756 3.7552 3.7543 13195
11 37761 3.7566 37755 3.7549 3.7555 13195
12 37752 3.7540 37752 3.7540 3.7532 13195
VBAT_vadc mean 3.7507 V stdev 7.4 mV min 3.7356 max 3.7566
VPH drv mean 3.7523 V stdev 6.8 mV
DMM (operator, VBAT pad vs GND, 10 mV resolution, 10 readings): mean 3.7190 stdev 20.2 mV range 3.70-3.74
VADC - DMM = +31.7 mV (+0.85 %)
BMS FIFO newest (last 6): mean 13194.2
FIFO coeff vs VADC: 284.34 uV/LSB ; vs DMM: 281.87 uV/LSB (upstream assumes 300; uncalibrated downstream 292.97)