tinyusb.git/hw/bsp/nrf, branch claude/add-systemview-debug

sysview: fix cycle-3 review findings

2026-09-03T23:06:25Z

- kill_traffic(): stop the recording at --duration-ms exactly, then reap the workload, instead of waiting on it (up to 60s) before -stop - sysview_report.py: key open_calls by (func id, context) so interleaved callers of the same function don't cross-pair CALL/RET - build.yml: intersect the sysview dep-fetch board list with the PR's own HIL selection (tinyusb.json vs hfp.json), and skip entirely when HIL is not running for this PR - nrf54h20dk: shrink SYSVIEW_BUFFER_SIZE_DEFAULT to 4096 -- .data/.bss sit in the 32 KiB primary RAM, so the family's 65536 default fails to link - tusb_sysview.c: copy pcTaskName into a local buffer at snapshot time so a task deleted mid-lap can't leave SendTaskInfo() dereferencing a freed TCB - sysview_ci.py: drop a comparison against a baseline whose capture config (example/workload/duration_s) changed, and fail cdc_burst when the link stays enumerated but echoes nothing back - SKILL.md: document the WCH post-mortem dump path (OpenOCD, no J-Link)

sysview: per-family RTT buffer defaults, 65536 on RAM-rich parts

2026-09-03T21:21:57Z

The dual-role dogfood measured the 4096 fallback losing 96.7% of ISR exit contexts on mimxrt1064_evk and 99.1% on metro_m4_express; a local-board run measured stm32u575nucleo losing ~19% of the whole stream under a 12 s cdc_msc workload. The default was too small for any real capture on fast parts and every user had to rediscover that per board. Families now declare SYSVIEW_BUFFER_SIZE_DEFAULT in family.cmake (the SYSVIEW_RAM_BASE_DEFAULT pattern): imxrt, nrf, rp2040, samd5x_e5x, stm32f4, stm32f7, stm32h7 and stm32u5 set 65536, the measured-safe value. -DSYSVIEW_BUFFER_SIZE still beats everything; small-RAM parts keep the 4096 fallback and their per-board overrides (stm32f072disco's 2048 verified still honoured). lpc55 measured 34 lost events on the same route, an order of magnitude lighter, so it keeps the fallback rather than inheriting a default on thin evidence.

sysview: FreeRTOS trace hooks, stack high-water and heap tracking

2026-09-03T21:21:57Z

hw/bsp/sysview_freertos_hooks.h maps the FreeRTOS trace macros onto SystemView task records (task names, switches, ready/blocked) and adds heap tracking; the FreeRTOSConfig.h of the families used on the rig include it when SYSVIEW is on. The FreeRTOS examples grow their USB task stacks when CFG_TU*_SYSVIEW is enabled, the same way they already do for CFG_TUSB_DEBUG -- the instrumentation's stack cost is real (measured overflows on lpc55 before the bump).

nrf: etm-trace for nrf52840dk and nrf5340dk

2026-07-24T08:56:14Z

nrf52840dk: 16 MHz TRACECLK (hardware cap) width 4, P25 soldered, SW7=Alt; no family code needed (J-Link arms TRACECONFIG). nrf5340dk: TRACE_ETM builds force the TAD port to 16 MHz (SystemInit's 64 MHz is marginal), +3 ns sample timing; the interface MCU's UART1 flow control drives the trace pins - SB27/SB28 must be cut (P0.10/P0.11 = TRACEDATA1/0).

Adjust RAM configuration for nrf54h20 to optimize memory usage in video examples

2026-05-04T15:13:14Z

clean up

2026-04-10T14:17:46Z

fix nrf54 and freertos port

2026-04-10T10:46:41Z

add dwc2_clock_init() to have nrf54 initial sequence. currently stub for other ports.

2026-04-10T09:52:15Z

add board_uart_read() for nrf

Add initial board support for nRF54LM20 DK

2026-04-09T04:08:39Z

remove IAR toolchain support from make build system

2026-04-06T04:17:34Z

IAR is only supported with CMake. Remove all IAR-specific references from the Make build system including toolchain files, SRC_S_IAR, LD_FILE_IAR variables, and IAR toolchain detection. Also fix GET_SECTOR_COUNT truncation in msc_file_explorer and broken formatting in stm32f7 board_uart_write. Co-Authored-By: Claude Opus 4.6 (1M context)