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esp32: Bootloader wake deep sleep stub

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App can contain a stub program resident in RTC fast memory. Bootloader
will load the stub on initial boot. If the device wakes from deep sleep,
the stub is run immediately (before any other data is loaded, etc.)

To implement a custom wake stub, implement a function in your program:

```
void RTC_IRAM_ATTR esp_wake_deep_sleep(void)
{
  esp_default_wake_deep_sleep();
  // other wake logic
}
```

... and it will replace the default implementation.
This commit is contained in:
Angus Gratton
2016-09-12 17:23:15 +10:00
committed by Wu Jian Gang
parent b77bf9bc90
commit 7c494055e3
12 changed files with 264 additions and 34 deletions
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20
components/esp32/include/rom/rtc.h
View File

@@ -51,18 +51,18 @@ extern "C" {
*
*************************************************************************************
* Rtc store registers usage
* RTC_STORE0
* RTC_STORE1
* RTC_STORE2
* RTC_STORE3
* RTC_STORE4 Reserved
* RTC_STORE5 External Xtal Frequency
* RTC_STORE6 FAST_RTC_MEMORY_ENTRY
* RTC_STORE7 FAST_RTC_MEMORY_CRC
* RTC_CNTL_STORE0_REG
* RTC_CNTL_STORE1_REG
* RTC_CNTL_STORE2_REG
* RTC_CNTL_STORE3_REG
* RTC_CNTL_STORE4_REG Reserved
* RTC_CNTL_STORE5_REG External Xtal Frequency
* RTC_CNTL_STORE6_REG FAST_RTC_MEMORY_ENTRY
* RTC_CNTL_STORE7_REG FAST_RTC_MEMORY_CRC
*************************************************************************************
*/
#define RTC_ENTRY_ADDR RTC_STORE6
#define RTC_MEMORY_CRC RTC_STORE7
#define RTC_ENTRY_ADDR_REG RTC_CNTL_STORE6_REG
#define RTC_MEMORY_CRC_REG RTC_CNTL_STORE7_REG
typedef enum {