Sam Price started a new discussion on bsps/riscv/esp32/start/bspstart.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1555#note_161776 > + * > + * Register 9.37, RTC_CNTL_WDTWPROTECT_REG (0x00A8), page 254: > + * "RTC_CNTL_WDT_WKEY If the register contains a different value than > + * 0x50d83aa1, write protection for the RTC watchdog (RWDT) is enabled." > + */ > +#define WDT_WKEY_VALUE 0x50d83aa1U > > -#define RTC_CNTL_WDTCONFIG0_REG (uintptr_t) 0x90 > -#define RTC_CNTL_WDTCONFIG0_EN BSP_BIT32( 31 ) > +/* > + * Section 12.2.2.3, Write Protection, page 309, step 3: > + * > + * "Re-enable write protection by writing any value other than 0x50D83AA1 > + * to the timer's write-key field." > + */ > +#define WDT_WPROTECT_LOCK 0U **Reference code for locking.** ESP-IDF also writes 0 to lock again: [`mwdt_ll_write_protect_enable()`](https://github.com/espressif/esp-idf/blob/0e6b480f858c69862ffb6001d96e9eef74599a6e/components/esp_hal_wdt/esp32c3/include/hal/mwdt_ll.h#L231-L234) for the timer group watchdog and [`rwdt_ll_write_protect_enable()`](https://github.com/espressif/esp-idf/blob/0e6b480f858c69862ffb6001d96e9eef74599a6e/components/esp_hal_wdt/esp32c3/include/hal/rwdt_ll.h#L273-L276) for the RTC watchdog. -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1555#note_161776 You're receiving this email because of your account on gitlab.rtems.org. Unsubscribe from this thread: https://gitlab.rtems.org/-/namespace/49/sent_notifications/6-20zroevgdw18k37v78ocb29rb-1d/unsubscribe | Manage all notifications: https://gitlab.rtems.org/-/profile/notifications | Help: https://gitlab.rtems.org/help
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