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feat(W12): 3 boards alive + M1 crypto PASS on ARM + E2E RF test - #55
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July 6, 2026 21:07
Adapted from PlutoSDR jtag-bootstrap v0.38, converted from XSDB TCL to openOCD TCL format. Verified on P201Mini (Zynq 7020, 1GB DDR3): - DDR3 integrity: 100% (write+read, 100/100 words) - U-Boot v0.38: loaded at 0x04000000, executes + relocates to 0x1FF64408 - UART output confirmed on FTDI channel B Known macOS limitation: cannot access JTAG + UART simultaneously on same FTDI FT2232H (USB device locking). Linux recommended for U-Boot console interaction + QSPI flash via sf write. phi^2 + phi^-2 = 3
Achieved: 3/3 P201Mini boards alive via SD boot
- Linux 5.10.0, AD9361 detected, SSH root@192.168.1.{11,12,13}/analog
- Working SD card recipe: BOOT.BIN + uImage + DTB + ramdisk + uEnv.txt
- Key findings: PLL reg=0x10C, DDR3=MT41K256M16TW, QSPI=W25Q256
- SD boot bypasses POR issue (bootROM sets boot_valid for SD)
- 3 critical mistakes documented for never-repeat
φ² + φ⁻² = 3
3 boards at 2.4 GHz ISM Thailand, Board 1→3 OTA +8.75 dB RSSI Loopback (tx_quad + bbrf) confirmed on all boards Mesh connectivity: all boards ping each other φ² + φ⁻² = 3
X25519 handshake + ChaCha20-Poly1305 AEAD + tamper/replay rejection Cross-compiled armv7-musl, static binary, deployed via SSH pipe All 3 boards: M1 PASS φ² + φ⁻² = 3
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W12 Marathon Session Results
Achieved
Files
docs/W12_SESSION_REPORT.md— full session report + working SD boot recipedocs/W12_E2E_RF_TEST_RESULTS.md— 30/30 E2E test resultsdocs/W12_M1_HW_RESULTS.md— M1 crypto on ARM hardware.trinity/experience/w12-board-recovery.json— experience for Trinity CLI.trinity/mistakes/w12-*.md— 3 critical mistakes (never repeat)tools/jtag-bootstrap/— openOCD scripts for P201MiniSupersedes
φ² + φ⁻² = 3