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soc/rtc_wdt: Add API functions for rtc_wdt

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Added functions:
rtc_wdt_protect_off/on
rtc_wdt_set_length_of_reset_signal
rtc_wdt_set_stage
rtc_wdt_set_time
rtc_wdt_feed
rtc_wdt_disable/enable
This commit is contained in:
Konstantin Kondrashov
2018-07-23 15:59:37 +05:00
parent b4b1b361da
commit a8e46775c6
8 changed files with 351 additions and 69 deletions
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18
components/esp32/system_api.c
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@@ -31,6 +31,7 @@
#include "soc/timer_group_struct.h"
#include "soc/cpu.h"
#include "soc/rtc.h"
#include "soc/rtc_wdt.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "freertos/xtensa_api.h"
@@ -270,14 +271,15 @@ void IRAM_ATTR esp_restart_noos()
xt_ints_off(0xFFFFFFFF);
// Enable RTC watchdog for 1 second
REG_WRITE(RTC_CNTL_WDTWPROTECT_REG, RTC_CNTL_WDT_WKEY_VALUE);
REG_WRITE(RTC_CNTL_WDTCONFIG0_REG,
RTC_CNTL_WDT_FLASHBOOT_MOD_EN_M |
(RTC_WDT_STG_SEL_RESET_SYSTEM << RTC_CNTL_WDT_STG0_S) |
(RTC_WDT_STG_SEL_RESET_RTC << RTC_CNTL_WDT_STG1_S) |
(1 << RTC_CNTL_WDT_SYS_RESET_LENGTH_S) |
(1 << RTC_CNTL_WDT_CPU_RESET_LENGTH_S) );
REG_WRITE(RTC_CNTL_WDTCONFIG1_REG, rtc_clk_slow_freq_get_hz() * 1);
rtc_wdt_protect_off();
rtc_wdt_disable();
rtc_wdt_set_stage(RTC_WDT_STAGE0, RTC_WDT_STAGE_ACTION_RESET_RTC);
rtc_wdt_set_stage(RTC_WDT_STAGE1, RTC_WDT_STAGE_ACTION_RESET_SYSTEM);
rtc_wdt_set_length_of_reset_signal(RTC_WDT_SYS_RESET_SIG, RTC_WDT_LENGTH_200ns);
rtc_wdt_set_length_of_reset_signal(RTC_WDT_CPU_RESET_SIG, RTC_WDT_LENGTH_200ns);
rtc_wdt_set_time(RTC_WDT_STAGE0, 1000);
rtc_wdt_enable();
rtc_wdt_protect_on();
// Reset and stall the other CPU.
// CPU must be reset before stalling, in case it was running a s32c1i