1. add sigma-delta code and example.
2. add gpio output signal in io matrix.
Squashed commits:
[a25e7d4] minor changes for doc
[6a03a1e] minor changes on comments and doc.
[97dd9e4] Add doc.
update index.rst
change example index
Starting the ULP using SENS_SAR_START_FORCE_REG doesn’t disable clock gating of RTC fast clock.
When SoC goes into deep sleep mode, RTC fast clock gets gated, so ULP can no longer run.
Instead, it has to be started using the timer (RTC_CNTL_ULP_CP_SLP_TIMER_EN bit).
When ULP is enabled by the timer, clock also gets enabled.
extend deep sleep APIs
This adds the following APIs to enable various wakeup sources:
- esp_deep_sleep_enable_timer_wakeup
- esp_deep_sleep_enable_ulp_wakeup
- esp_deep_sleep_enable_ext0_wakeup
- esp_deep_sleep_enable_ext1_wakeup
And an API to start deep sleep:
- esp_deep_sleep_start
Add an API to control which peripherals are kept enabled in deep sleep mode:
- esp_err_t esp_deep_sleep_pd_config
Also rolled an update of rtc_io header comments into this MR, as I had to add `slpie`, `slpsel`, and `hold` fields into `rtc_gpio_desc_t` struct.
Deep sleep unit tests don’t do anything useful in CI context because we don’t have a way to check reset behavior (time till reset, reason for reset) in CI environment, yet. Also for external wakeup we would need to control some ESP32 pins from the test environment.
Currently there is one known issue:
- RTC Fast memory may be isolated from the bus after deep sleep reset. We work around this by setting FORCE_NONISO flag in RTC power control register. This is non-optimal and we will keep looking for the reason why isolation gets enabled.
See merge request !297
This change allows setting pin configuration for EXT1 wakeup depending on the state of RTC_PERIPH power domain:
- if peripherals are enabled (due to another wakeup mode, or due to esp_deep_sleep_pd_config call), we can keep internal pullups/pulldowns enabled
- if peripherals are disabled, pullups and pulldowns need to be disabled as well
Also add comments about the purpose of registers being configured.
This adds a workaround for a bug that following deep sleep wakeup, ISO (bus isolation) signal may be set for RTC fast memory.
We set FORCE_NOISO bit in RTC_CNTL_PWC_REG until we find out what is causing ISO signal to be set.
When ESP32 wakes up from deep sleep, flash is accessed an approximately 900us after power on.
Some flash chips need more time to become ready. This change adds a menuconfig option to add
some delay to the default deep sleep wake stub.
Fixes https://github.com/espressif/esp-idf/issues/117
This adds the following APIs to enable various wakeup sources:
- esp_deep_sleep_enable_timer_wakeup
- esp_deep_sleep_enable_ulp_wakeup
- esp_deep_sleep_enable_ext0_wakeup
- esp_deep_sleep_enable_ext1_wakeup
And an API to start deep sleep:
- esp_deep_sleep_start
1. TW8657, WIFI send the whole packet to smartconfig;
2. modify API annotation of smartconfig and sniffer;
3. export smartconfig APIs to programming guide;
lwip: fix lwip dual core issue
Call xSemaphoreGiveFromISR instead xSemaphoreGive when the calling context is in critical section.
See merge request !314
Restore ability to alloc IRAM, and more.
- Fix mem regions so allocating IRAM works again
- Optimize allocator slightly, uses 4 less bytes per malloc now
- Allow querying free heap memory space per memory type
See merge request !301
Bugfix/btdm bluedroid
Cleanup all the warnings。
Fix GATT CLIENT cannot receive notfiy/indicate from GATT SERVER bug.
Originally, bluetooth have its own master branch(feature/btdm_bluedroid), all the bluetooth sub branch will merge to feature/btdm_bluedroid firstly. If feature/btdm_bluedroid is ready, it will request merge to master. But as Ivan/JG/Jack's requires, all the bluetooth bugfix or feature will request merge to master ASAP.
This MR contains "cleanup warning " and "some bug fix", after, every merge request only contain one thing.
See merge request !286
Update uart examples in uart.h to new interrupt allocation scheme
Some of the examples in the UART header haven't been adjusted to the new interrupt scheme; this fixes that. Also runs dos2unix on the drivers tree; a fair few drivers used DOS-style line ends.
See merge request !313
1. enable will malloc, but disable don't free resolving list, so fix it
2. In disable procedure, it will alloc alarm to hash_map, and all the alarm hash_map will be free in deinit. So this need not be fixed currently.
Create temp config in the same dir as target
Fixes case where SDK and app are on different mounts
(In our usage of kconfig, dirname is the empty string & basename is the full path to sdkconfig)
Github pull request https://github.com/espressif/esp-idf/pull/151
See merge request !309
