Replace sdkconfig with device.properties (#411)

sdkconfig.md

@@ -1,20 +1,46 @@
 # Get Started
 
-Copy the relevant `sdkconfig.board.*` file into `sdkconfig`.
-This will apply the relevant settings to build the project for your hardware.
+See [https://docs.tactility.one]
 
 # Useful Parameters
 
-## Enable FPS
+You can copy these into `sdkconfig` manually or set them via `idf.py menuconfig`
 
-```
+## LVGL FPS Counter
+
+```properties
 CONFIG_LV_USE_OBSERVER=y
 CONFIG_LV_USE_PERF_MONITOR=y
 ```
 
+## LVGL Layer debugging
+
+```properties
+CONFIG_LV_USE_REFR_DEBUG=y
+CONFIG_LV_USE_LAYER_DEBUG=y
+```
+
 ## Halt on error
 
-```
+```properties
 CONFIG_ESP_SYSTEM_PANIC_PRINT_HALT=y
 # CONFIG_ESP_SYSTEM_PANIC_PRINT_REBOOT is not set
 ```
+
+## Stack debugging
+
+[Stack smashing protection mode:](https://docs.espressif.com/projects/esp-idf/en/stable/esp32/api-reference/kconfig-reference.html#config-compiler-stack-check-mode)
+
+> - In NORMAL mode (GCC flag: -fstack-protector) only functions that call alloca, and functions with buffers larger than 8 bytes are protected.
+> - STRONG mode (GCC flag: -fstack-protector-strong) is like NORMAL, but includes additional functions to be protected -- those that have local array definitions, or have references to local frame addresses.
+> - In OVERALL mode (GCC flag: -fstack-protector-all) all functions are protected.
+
+```properties
+CONFIG_STACK_CHECK_STRONG=y
+```
+
+or:
+
+```properties
+CONFIG_STACK_CHECK_ALL=y
+```