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- target-debug: fault frame lives on PSP when EXC_RETURN bit2 set (FreeRTOS
tasks) — decode LR before choosing $msp/$psp (Codex; valid, our verify
happened to fault on MSP)
- esp-target-debug: show the Xtensa gdb for S3 in the attach recipe; clarify
adapter serial = USB-SJ iSerial (colon MAC, hardware-verified) vs the
CP2102N flasher uids in tinyusb.json (Codex; second half of the finding
had the identifiers inverted)
- esp plan: align serial form with the verified command; record the real
console-gate outcome (UART0, USB-SJ console untested) (Copilot)
- target-debug plan: Task 4 now consistently $JB/ARMv7-M matching the
executed JLinkExe path (Copilot)
- drop IDE-local .idea files swept in by the rename commit (Copilot)
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by board family
- esp-target-debug: de-narrated (~1000 -> 847 words) — session-diary phrasing
('this unit', dates, 'we measured') replaced with durable reference facts;
restructured per-board (P4 vs S3 notes); new Scripted-session gotchas
section consolidates telnet-halt pattern, ESP_ONLYCPU, and ROM-frame
guidance; UART-reset recipe stated once
- target-debug: fix run-on seam from the -singlerun insertion
- target-debugger agent: charter now resolves the board family FIRST and
routes Espressif boards to esp-target-debug as primary playbook; skills
table re-aligned
- retrieval regression: 4/4 (agent routing, S3 keep-alive quirk, OpenOCD RTT
on ST-Link, ROM-frame guidance)
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rig-verified
P4 (hand-wired USB-SJ breakout, GPIO24/25 from header J1):
- COEXISTENCE verified: 303a:1001 + cafe:4008 enumerated simultaneously;
gdb attach/halt/bt during live CDC traffic; symbolized app backtrace
(tud_task_ext <- usb_device_task <- vPortTaskWrapper)
- set ESP_RTOS FreeRTOS before board cfg -> full dual-core task list;
without it, bare 'Remote target'
- attach-may-reset nuance flagged (post-mortem autopsy caution)
- console = UART0 (CP2102 flasher tty) on stock builds; D+/D- swap symptom
documented (low-speed + error -71 vs full-speed)
S3 (same-port PHY swap):
- boundary captured live in dmesg: same hub port flips 303a:1001 ->
cafe:4008 as the app boots; openocd 'esp_usb_jtag: could not find or open
device!' verbatim
- attach/halt/symbol resolution verified via board_test (usb_new_phy absent
from ELF when CFG_TUD/TUH=0); app-context keep-alive quirk (~4 s
unattended drop, -71 half-dead, UART esptool reset recovers); cpu1
OCD_ID=0 -> ESP_ONLYCPU=1; telnet-halt + gdb-read scripted pattern;
RTC_CNTL PHY-mux reference (0x60008120) + esptool read_mem/write_mem
- target-debug pointer + target-debugger agent table row
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