Sam Price started a new discussion on bsps/riscv/esp32/start/bspstart.c: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1555#note_161781 > + /* > + * Timer group 0's watchdog follows the same procedure as the RTC > watchdog, > + * with its own key register. Its configuration registers are updated > + * asynchronously, so the change only takes effect once > + * TIMG_WDT_CONF_UPDATE_EN is written (register 11.10). > + */ > + TIMG_WRITE( TIMG_WDTWPROTECT_REG, WDT_WKEY_VALUE ); > timg_wdtconfig0 = TIMG_READ( TIMG_WDTCONFIG0_REG ); > - TIMG_WRITE( TIMG_WDTCONFIG0_REG, timg_wdtconfig0 & TIMG_WDTCONFIG0_EN ); > + TIMG_WRITE( > + TIMG_WDTCONFIG0_REG, > + timg_wdtconfig0 & ~( TIMG_WDTCONFIG0_EN | TIMG_WDT_FLASHBOOT_MOD_EN ) > + ); > + TIMG_WRITE( > + TIMG_WDTCONFIG0_REG, > + TIMG_READ( TIMG_WDTCONFIG0_REG ) | TIMG_WDT_CONF_UPDATE_EN **Reference code for `TIMG_WDT_CONF_UPDATE_EN`.** ESP-IDF's [`mwdt_ll_set_flashboot_en()`](https://github.com/espressif/esp-idf/blob/0e6b480f858c69862ffb6001d96e9eef74599a6e/components/esp_hal_wdt/esp32c3/include/hal/mwdt_ll.h#L190-L195) clears `wdt_flashboot_mod_en` and then sets `wdt_conf_update_en = 1`, with the comment "Config registers are updated asynchronously". Every other `TIMG_WDTCONFIG0` setter in that file does the same (for example [L122](https://github.com/espressif/esp-idf/blob/0e6b480f858c69862ffb6001d96e9eef74599a6e/components/esp_hal_wdt/esp32c3/include/hal/mwdt_ll.h#L122) and [L177](https://github.com/espressif/esp-idf/blob/0e6b480f858c69862ffb6001d96e9eef74599a6e/components/esp_hal_wdt/esp32c3/include/hal/mwdt_ll.h#L177)). -- View it on GitLab: https://gitlab.rtems.org/rtems/rtos/rtems/-/merge_requests/1555#note_161781 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/6-6yevla21tk43o126mqalvjtss-1d/unsubscribe | Manage all notifications: https://gitlab.rtems.org/-/profile/notifications | Help: https://gitlab.rtems.org/help
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