lucasssvaz opened a new pull request, #8202:
URL: https://github.com/apache/nuttx/pull/8202
## Summary
Separate from GPIOs and add a handler for RTC interrupts.
Also replaces the RTC watchdog interrupt handler with the new one.
## Impact
None on existing features. Add support for handling interruptions from RTC
peripherals.
## Testing
Tested using the watchdog example on the ESP32-DevKitC. (watchdog2 is the
RTC one)
```
NuttShell (NSH) NuttX-10.4.0
nsh> wdog -i /dev/watchdog2
ping elapsed=0
ping elapsed=500
ping elapsed=1000
ping elapsed=1500
ping elapsed=2000
ping elapsed=2500
ping elapsed=3000
ping elapsed=3500
ping elapsed=4000
ping elapsed=4500
NO ping elapsed=5000
NO ping elapsed=5500
NO ping elapsed=6000
ets Jul 29 2019 12:21:46
rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:2
load:0x3fff0030,len:6640
load:0x40078000,len:14848
load:0x40080400,len:3672
entry 0x4008068c
I (28) boot: ESP-IDF v4.4.2 2nd stage bootloader
I (28) boot: compile time 14:59:14
I (28) boot: chip revision: 3
I (30) boot_comm: chip revision: 3, min. bootloader chip revision: 0
I (38) boot.esp32: SPI Speed : 40MHz
I (42) boot.esp32: SPI Mode : DIO
I (47) boot.esp32: SPI Flash Size : 4MB
I (51) boot: Enabling RNG early entropy source...
I (57) boot: Partition Table:
I (60) boot: ## Label Usage Type ST Offset Length
I (68) boot: 0 factory factory app 00 00 00010000 00100000
I (75) boot: End of partition table
I (79) boot_comm: chip revision: 3, min. application chip revision: 0
I (86) esp_image: segment 0: paddr=00010020 vaddr=3f400020 size=027ech (
10220) map
I (99) esp_image: segment 1: paddr=00012814 vaddr=3ffb1540 size=00220h (
544) load
I (103) esp_image: segment 2: paddr=00012a3c vaddr=40080000 size=01608h (
5640) load
I (114) esp_image: segment 3: paddr=0001404c vaddr=00000000 size=0bfcch (
49100)
I (138) esp_image: segment 4: paddr=00020020 vaddr=400d0020 size=10c24h (
68644) map
I (163) boot: Loaded app from partition at offset 0x10000
I (163) boot: Disabling RNG early entropy source...
�
NuttShell (NSH) NuttX-10.4.0
nsh>
```
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