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wdt: Fix timeout and RTC_SLOW_CLK

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RTC_SLOW_CLK
ESP32:    150kHz
ESP32-S2:  90kHz
ESP32-S3: 150kHz
ESP32-C3: 150kHz
This commit is contained in:
KonstantinKondrashov
2021-03-19 00:15:18 +08:00
parent a90f29fced
commit aa1338bf23
19 changed files with 45 additions and 43 deletions
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docs/en/api-guides/ulp-risc-v.rst
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@@ -136,7 +136,9 @@ Once the program is loaded into RTC memory, the application can start it, callin
ULP-RISC-V Program Flow
-----------------------
The ULP-RISC-V coprocessor is started by a timer. The timer is started once :cpp:func:`ulp_riscv_run` is called. The timer counts the number of RTC_SLOW_CLK ticks (by default, produced by an internal 90 kHz RC oscillator). The number of ticks is set using ``RTC_CNTL_ULP_CP_TIMER_1_REG`` register. When starting the ULP, ``RTC_CNTL_ULP_CP_TIMER_1_REG`` will be used to set the number of timer ticks.
{IDF_TARGET_RTC_CLK_FRE:default="150kHz", esp32s2="90kHz"}
The ULP-RISC-V coprocessor is started by a timer. The timer is started once :cpp:func:`ulp_riscv_run` is called. The timer counts the number of RTC_SLOW_CLK ticks (by default, produced by an internal {IDF_TARGET_RTC_CLK_FRE} RC oscillator). The number of ticks is set using ``RTC_CNTL_ULP_CP_TIMER_1_REG`` register. When starting the ULP, ``RTC_CNTL_ULP_CP_TIMER_1_REG`` will be used to set the number of timer ticks.
The application can set ULP timer period values (RTC_CNTL_ULP_CP_TIMER_1_REG) using the :cpp:func:`ulp_set_wakeup_period` function.