According to guide `gpio_stay_*_map` are specifically there to prevent pulling pins to a specific level and let them float during deep sleep. https://docs.bekencorp.com/sdk_3.0.x/bk7238/build/en/latest/developer-guide/power_save/sleep_test.html This allows any external low-power circuitry to change a pin level, as required, to trigger the wake up This requires changes in BDK and was implemented via fixup. Also, exposed `gpio_stay_lo_map` parameter via `lt_deep_sleep_keep_floating_gpio` to manage this configuration for pins in range P0-P31.
14 lines
475 B
C
14 lines
475 B
C
/* Copyright (c) Peter Sarkozi 2023-06-17. */
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#include "lt_sleep.h"
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__attribute__((weak)) void lt_deep_sleep_config_gpio(uint32_t gpio_index_map, bool on_high);
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__attribute__((weak)) void lt_deep_sleep_unset_gpio(uint32_t gpio_index_map);
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__attribute__((weak)) void lt_deep_sleep_keep_floating_gpio(uint32_t gpio_index_map, bool on_high);
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__attribute__((weak)) void lt_deep_sleep_config_timer(uint32_t sleep_duration);
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__attribute__((weak)) void lt_deep_sleep_enter();
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