nuttx/arch
raiden00pl 440be49862 arch/arm/src/common/stm32: read UID with 32-bit accesses
STM32H5 stores the UID in flash memory that supports only 16-bit or
32-bit read accesses. The 8-bit reads introduced with the stm32_uid
unification generate an AHB bus error and hard fault the chip when
the Ethernet driver reads the MAC address.

Read the UID as three 32-bit words into an aligned buffer and copy it
to the caller's buffer. On little-endian ARM the resulting byte order
is identical to byte reads, so behavior is unchanged for the other
STM32 families.

Fixes: https://github.com/apache/nuttx/issues/19771

Signed-off-by: raiden00pl <raiden00@railab.me>
Assisted-by: Claude Code
2026-08-16 08:42:20 -03:00
..
arm arch/arm/src/common/stm32: read UID with 32-bit accesses 2026-08-16 08:42:20 -03:00
arm64 arch/arm64: Build fork() children from the caller's syscall frame. 2026-08-10 08:57:30 -03:00
avr tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
ceva !sched/arch/libc: Give fork() and vfork() their real, separate semantics. 2026-08-10 08:57:30 -03:00
dummy
hc tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
mips mips/Makefile: Add nuttx build with CONFIG_ALLSYMS enabled. 2026-08-11 09:53:38 -03:00
misoc tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
or1k tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
renesas tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
risc-v arch/risc-v/espressif: fix SPI IOMUX false positive without SPI2 2026-08-11 13:56:50 +08:00
sim sim: update Makefile to match Cmake config 2026-08-14 19:57:07 +08:00
sparc tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
tricore arch/tricore: perf.c donot depend on illd 2026-08-13 12:38:45 +02:00
x86 arch/x86: Provide vfork(). 2026-08-15 09:00:20 -03:00
x86_64 arch/x86_64: align the user signal frame and skip the ABI red zone 2026-08-11 22:06:32 +08:00
xtensa xtensa/esp32s3: Let a protected build boot from simple boot. 2026-08-11 23:49:21 +08:00
z16 tools: fix stale archive members surviving a Kconfig-driven CSRCS change 2026-07-28 21:26:03 -03:00
z80
CMakeLists.txt cmake: Use NUTTX(_DIR/_BIN_DIR) instead CMAKE(_SRC_DIR/_BIN_DIR) 2026-08-09 11:13:08 -03:00
Kconfig arch/x86: Provide vfork(). 2026-08-15 09:00:20 -03:00