Update Flash Example

esp32s2/s3 have different bootloader addresses

README.md

@@ -13,21 +13,32 @@ Any ESP board that have USB-OTG supported.
 
 > **WARNING**
 > using erase_flash will lose all stored keys
+
 ```
 # Erase first 1MB size
 esptool erase_region 0x0 0x100000
 ```
 
 Flash binaries:
 
+esp32s2
+bootloader address is 0x1000
+
 ```
-esptool write_flash 0x1000 bootloader/bootloader.bin 0x8000 partition_table/partition-table.bin 0x10000 esp32_u2f.bin 
+esptool write_flash 0x1000 bootloader/bootloader.bin 0x8000 partition_table/partition-table.bin 0x10000 esp32_u2f.bin
 ```
 
-### Tools 
-[espressif esptool](https://github.com/espressif/esptool/releases)
+esp32s3
+bootloader address is 0x0
+
+```
+esptool write_flash 0x0 bootloader/bootloader.bin 0x8000 partition_table/partition-table.bin 0x10000 esp32_u2f.bin
+```
 
+### Tools
+
+[espressif esptool](https://github.com/espressif/esptool/releases)
 
 ### License
 
-[GNU General Public License v3.0](https://www.gnu.org/licenses/gpl-3.0.html)
+[GNU General Public License v3.0](https://www.gnu.org/licenses/gpl-3.0.html)