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

sysview: take the timestamp from a BSP hardware timer where the core has no DWT

2026-09-03T21:21:57Z

Cortex-M0/M0+, the WCH RISC-V parts and MAX3266x have no usable DWT cycle counter, so their family.c provides SEGGER_SYSVIEW_X_GetTimestamp() from a free-running hardware timer: a 32-bit general-purpose timer on ST parts (sysview_stm32_tim2.h), SysTick-extended sources on the M0 families, the core's SysTick-equivalent on WCH with the documented ordered read of the split count registers (sysview_wch_timestamp.h), and a TMR on MAX3266x (sysview_max32_tmr.h). max32666fthr's DWT implements only watchpoint comparators (DWT_CTRL.NOCYCCNT=1 read live; UG6971 documents no DWT/trace at all), so SystemView's ARMv7-M default read 0xE0001004 as a frozen 0 and every duration decoded as zero. The TMR runs at 48 MHz (f_PCLK = f_SYS_CLK/2; Continuous mode, CMP=0xFFFFFFFF, prescaler 1 - UG6971 15.2 guarantees TMRn_CNT readable while counting); TMR0 by default - present on every MAX32 part, unused by the examples, FreeRTOS ticks on SysTick - overridable with -DSYSVIEW_MAX32_TMR=n. The family builds SystemView with SEGGER_SYSVIEW_CORE_OTHER and sets CFG_TUSB_SYSVIEW_TIMESTAMP_BSP, a tusb_sysview.c opt-in for ARMv7-M parts without CYCCNT where the BSP also reports the rate via SEGGER_SYSVIEW_X_GetTimestampFreq(); the fixed-1MHz microsecond contract is unreachable on a powers-of-two-only prescaler. SEGGER_SYSVIEW_X_GetInterruptId() gains the ICSR.VECTACTIVE read for CORE_OTHER builds. MAX32650/32690 use different GCR clock-gate names and stay unported. Measured on the rig: seven host-timed 1.000 s gaps at 1.00044-1.00091 (median +0.05%). stm32f0 refuses to configure SYSVIEW for stm32f070xb at CMake time: that variant has no TIM2 at all, and the alternative was an undefined-reference link error with no hint. The shared hw/bsp/sysview_*.h join ci_select rule 16's hw/bsp file list (cross-family build files, compiled only under -DSYSVIEW which no CI leg enables), mirrored in the spec's rule table, so master's classification guard resolves them on both axes.

sysview: wire the -DSYSVIEW= build option

2026-09-03T21:21:57Z

family_support.cmake/.mk translate -DSYSVIEW= (CMake) / SYSVIEW= (Make) into CFG_TUD_SYSVIEW/CFG_TUH_SYSVIEW, pull in lib/SystemView sources and the RTT/SystemView include paths, and refuse levels the family cannot honour. The lpc11/13/15/17/40/43 families declare SYSVIEW_RAM_BASE_DEFAULT 0x10000000: their SRAM does not start at the Cortex-M-canonical 0x20000000, and the recorder needs the real base to find the RTT control block.

migrate NXP Kinetis khci to chipidea ci_fs driver (device + host)

2026-07-17T10:26:02Z

Complete the khci -> chipidea ci_fs migration that was started for device (commit d70403f1f "host is not yet"): - device: switch kinetis_k/kl/k32l (Makefiles + k32l CMake) to dcd_ci_fs.c - host: add hcd_ci_fs.c (port of hcd_khci.c onto ci_fs_regs_t) and switch all Kinetis families to it; remove src/portable/nxp/khci entirely - enable host examples (device_info, cdc_msc_hid) for mcu:KINETIS_K - README: merge the KL and K32L2 rows into a single "KL, K32L" ci_fs row hcd_ci_fs.c also fixes two pre-existing host bugs found via HIL on frdm_k64f (present in the old hcd_khci.c too): - data toggle was flipped on a NAK in suspend_transfer; a NAK transfers no data so the toggle must be preserved, else the retried bulk packet is silently discarded by the device (MSC CBW/CSW hang). See comment in file. - prepare_packets asserted and dropped a transfer when the single shared BDT was still owned by an in-flight transfer under concurrent activity; now it returns busy and resume_transfer defers/retries on the next SOF. HIL verified on frdm_k64f: device 13/13, host cdc_msc_hid (CDC mount + echo + MSC mount, through a hub). Co-Authored-By: Claude Opus 4.8 (1M context) Claude-Session: https://claude.ai/code/session_01ExGPLP5eU43LR7o6yYLpNi

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)

implement board_uart_read()/write() as non-blocking for all families

2026-04-04T06:20:58Z

replace board_millis() with tusb_time_millis_api()

2026-02-27T17:01:40Z

fine tune ci to build more with circleci (#3386)

2025-12-04T14:34:10Z

* fine tune ci to build more with circleci * skip make for arm-iar, esp-idf * skip make + clang for circleci since llvm-objcopy got killed due to memory issue.

bsp: Disable SysTick ISR if FreeRTOS is enabled

2025-11-25T15:30:32Z

fix warning with strict prototypes warnings

2025-10-28T04:10:29Z

disable warning for startup file

2025-10-27T17:15:39Z