alex/esp-idf
1
0
Fork 0
mirror of https://github.com/espressif/esp-idf.git synced 2025-08-10 04:43:33 +00:00
Code Issues Packages Projects Releases Wiki Activity

esp32: Bootloader wake deep sleep stub

Browse Source 
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
Download Patch File Download Diff File Expand all files Collapse all files

6
components/esp32/ld/esp32.ld
View File

@@ -9,6 +9,12 @@ MEMORY
iram0_2_seg (RX) : org = 0x400D0018, len = 0x330000 /* Even though the segment name is iram, it is actually mapped to flash */
dram0_0_seg (RW) : org = 0x3FFB0000, len = 0x50000 /* Shared RAM, minus rom bss/data/stack.*/
drom0_0_seg (R) : org = 0x3F400010, len = 0x800000
/* RTC fast memory (executable). Persists over deep sleep.
*/
rtc_iram_seg(RWX) : org = 0x400C0000, len = 0x2000
/* RTC slow memory (data accessible). Persists over deep sleep. */
rtc_slow_seg(RW) : org = 0x50000000, len = 0x2000
}
_heap_end = 0x40000000;