🔨 BTT Octopus ST-Link programming/debugging

ini/stm32f4.ini

 # BigTreeTech Octopus V1.0/1.1 / Octopus Pro V1.0 (STM32F446ZET6 ARM Cortex-M4)
 #
 [env:BIGTREE_OCTOPUS_V1]
-extends            = stm32_variant
-board              = marlin_BigTree_Octopus_v1
-board_build.offset = 0x8000
-build_flags        = ${stm32_variant.build_flags}
-                     -DSTM32F446_5VX -DUSE_USB_HS_IN_FS
+extends                     = stm32_variant
+board                       = marlin_BigTree_Octopus_v1
+board_build.offset          = 0x8000
+board_upload.offset_address = 0x08008000
+debug_tool                  = stlink
+upload_protocol             = stlink
+build_flags                 = ${stm32_variant.build_flags}
+                              -DSTM32F446_5VX -DUSE_USB_HS_IN_FS
 
 #
 # BigTreeTech Octopus V1.0/1.1 / Octopus Pro V1.0 (STM32F446ZET6 ARM Cortex-M4) with USB Flash Drive Support
 # BigTreeTech Octopus Pro V1.0 (STM32F429ZGT6 ARM Cortex-M4)
 #
 [env:BIGTREE_OCTOPUS_PRO_V1_F429]
-extends            = stm32_variant
-board              = marlin_BigTree_Octopus_Pro_v1_F429
-board_build.offset = 0x8000
-build_flags        = ${stm32_variant.build_flags}
-                     -DUSE_USB_HS_IN_FS
+extends                     = stm32_variant
+board                       = marlin_BigTree_Octopus_Pro_v1_F429
+board_build.offset          = 0x8000
+board_upload.offset_address = 0x08008000
+debug_tool                  = stlink
+upload_protocol             = stlink
+build_flags                 = ${stm32_variant.build_flags}
+                              -DUSE_USB_HS_IN_FS
 
 #
 # BigTreeTech Octopus Pro V1.0 (STM32F429ZGT6 ARM Cortex-M4) with USB Flash Drive Support