docs(esptool_py): Add SPI flash size note for users
@@ -122,7 +122,9 @@ choice ESPTOOLPY_FLASHSIZE
prompt "Flash size"
default ESPTOOLPY_FLASHSIZE_2MB
help
- SPI flash size, in megabytes
+ SPI flash size, in megabytes. Users must not configure a larger value than their real flash size.
+ Otherwise an unexpected result may cause if users read/write a wrong address of flash.
+
config ESPTOOLPY_FLASHSIZE_1MB
bool "1 MB"
config ESPTOOLPY_FLASHSIZE_2MB
