tinyusb.git/hw/bsp/stm32h7, branch claude/add-systemview-debug

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).

address #3787 reviews: bsp fixes, script hardening, board-note accuracy

2026-07-24T11:38:40Z

Bot findings (Copilot/Codex): no-op board_trace_pinmux stubs for lpcxpresso18s37/43s67 (TRACE_ETM otherwise broke their build), SAME70 ID_PIOD clock enable, capture-script duplicate BeforeTargetConnect on the RA references, profile-script support for --no-timestamps itraces. Deep review (whole branch): same70_xplained board row + caveat restored, stale pico2 72 MHz claim corrected to the shipped 48, explicit SetTracePortWidth(4) in the three references that relied on Ozone's default, coverage-cell guard, median-based SysTick calibration, dead session flag removed, stale RA8M1 divider comment fixed (0x02 = /4 is the validated chip max) and the debugger guard indented. EVKB bench findings: only R1884/D3 remains open (D1/D2 meter-verified); RT1176 trace width is 1 or 4 only - J-Link arms the CSSYS TPIU and its own sampler at 4-bit for any width>=2 request; a powered MCU-Link USB breaks the external probe even with JP4 shorted.

stm32h7: tune stm32h743eval ozone trace reference

2026-07-24T08:56:14Z

+100 ps sample timing at 400 MHz core / 50 MHz TRACECLK (PLL1R-fixed), width 4. Startup-burst overflow at 400 MHz is expected; board.h documents the PLLN reduction for overflow-free capture.

ensure board_uart_write return -1 on default

2026-04-29T20:00:05Z

Signed-off-by: HiFiPhile

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)

update stm32 to use better uart id

2026-04-03T12:38:07Z

stm32 add uart hwfifo if supported, otherwise usb tu_fifo_t for receive uart in irq

2026-04-03T09:33:03Z

Removed readme and modified the getting started doc

2026-03-31T09:39:16Z

Metadata update

2026-03-30T20:24:53Z