diff options
| -rw-r--r-- | builddefs/mcu_selection.mk | 6 | ||||
| -rw-r--r-- | docs/flashing.md | 4 | ||||
| -rw-r--r-- | platforms/chibios/boards/common/ld/STM32F303xC_tinyuf2.ld | 88 |
3 files changed, 95 insertions, 3 deletions
diff --git a/builddefs/mcu_selection.mk b/builddefs/mcu_selection.mk index b566b1b5ac..1d05902fab 100644 --- a/builddefs/mcu_selection.mk +++ b/builddefs/mcu_selection.mk @@ -313,7 +313,11 @@ ifneq ($(findstring STM32F303, $(MCU)),) # Linker script to use # - it should exist either in <chibios>/os/common/startup/ARMCMx/compilers/GCC/ld/ # or <keyboard_dir>/ld/ - MCU_LDSCRIPT ?= STM32F303xC + ifeq ($(strip $(BOOTLOADER)), tinyuf2) + MCU_LDSCRIPT ?= STM32F303xC_tinyuf2 + else + MCU_LDSCRIPT ?= STM32F303xC + endif # Startup code to use # - it should exist in <chibios>/os/common/startup/ARMCMx/compilers/GCC/mk/ diff --git a/docs/flashing.md b/docs/flashing.md index a636f19c72..443fa3123e 100644 --- a/docs/flashing.md +++ b/docs/flashing.md @@ -324,7 +324,7 @@ Flashing sequence: ## tinyuf2 -Keyboards may opt into supporting the tinyuf2 bootloader. This is currently only supported on the F401/F411 blackpill. +Keyboards may opt into supporting the tinyuf2 bootloader. This is currently only supported on F303/F401/F411. The `rules.mk` setting for this bootloader is `tinyuf2`, and can be specified at the keymap or user level. @@ -365,7 +365,7 @@ CLI Flashing sequence: ## uf2boot -Keyboards may opt into supporting the uf2boot bootloader. This is currently only supported on the F103 bluepill. +Keyboards may opt into supporting the uf2boot bootloader. This is currently only supported on F103. The `rules.mk` setting for this bootloader is `uf2boot`, and can be specified at the keymap or user level. diff --git a/platforms/chibios/boards/common/ld/STM32F303xC_tinyuf2.ld b/platforms/chibios/boards/common/ld/STM32F303xC_tinyuf2.ld new file mode 100644 index 0000000000..809c53cba4 --- /dev/null +++ b/platforms/chibios/boards/common/ld/STM32F303xC_tinyuf2.ld @@ -0,0 +1,88 @@ +/* + ChibiOS - Copyright (C) 2006..2018 Giovanni Di Sirio + + Licensed under the Apache License, Version 2.0 (the "License"); + you may not use this file except in compliance with the License. + You may obtain a copy of the License at + + http://www.apache.org/licenses/LICENSE-2.0 + + Unless required by applicable law or agreed to in writing, software + distributed under the License is distributed on an "AS IS" BASIS, + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + See the License for the specific language governing permissions and + limitations under the License. +*/ + +/* + * STM32F303xC memory setup. + */ +MEMORY +{ + flash0 (rx) : org = 0x08000000 + 16k, len = 256k - 16k + flash1 (rx) : org = 0x00000000, len = 0 + flash2 (rx) : org = 0x00000000, len = 0 + flash3 (rx) : org = 0x00000000, len = 0 + flash4 (rx) : org = 0x00000000, len = 0 + flash5 (rx) : org = 0x00000000, len = 0 + flash6 (rx) : org = 0x00000000, len = 0 + flash7 (rx) : org = 0x00000000, len = 0 + ram0 (wx) : org = 0x20000000, len = 40k + ram1 (wx) : org = 0x00000000, len = 0 + ram2 (wx) : org = 0x00000000, len = 0 + ram3 (wx) : org = 0x00000000, len = 0 + ram4 (wx) : org = 0x10000000, len = 8k + ram5 (wx) : org = 0x00000000, len = 0 + ram6 (wx) : org = 0x00000000, len = 0 + ram7 (wx) : org = 0x00000000, len = 0 +} + +/* For each data/text section two region are defined, a virtual region + and a load region (_LMA suffix).*/ + +/* Flash region to be used for exception vectors.*/ +REGION_ALIAS("VECTORS_FLASH", flash0); +REGION_ALIAS("VECTORS_FLASH_LMA", flash0); + +/* Flash region to be used for constructors and destructors.*/ +REGION_ALIAS("XTORS_FLASH", flash0); +REGION_ALIAS("XTORS_FLASH_LMA", flash0); + +/* Flash region to be used for code text.*/ +REGION_ALIAS("TEXT_FLASH", flash0); +REGION_ALIAS("TEXT_FLASH_LMA", flash0); + +/* Flash region to be used for read only data.*/ +REGION_ALIAS("RODATA_FLASH", flash0); +REGION_ALIAS("RODATA_FLASH_LMA", flash0); + +/* Flash region to be used for various.*/ +REGION_ALIAS("VARIOUS_FLASH", flash0); +REGION_ALIAS("VARIOUS_FLASH_LMA", flash0); + +/* Flash region to be used for RAM(n) initialization data.*/ +REGION_ALIAS("RAM_INIT_FLASH_LMA", flash0); + +/* RAM region to be used for Main stack. This stack accommodates the processing + of all exceptions and interrupts.*/ +REGION_ALIAS("MAIN_STACK_RAM", ram0); + +/* RAM region to be used for the process stack. This is the stack used by + the main() function.*/ +REGION_ALIAS("PROCESS_STACK_RAM", ram0); + +/* RAM region to be used for data segment.*/ +REGION_ALIAS("DATA_RAM", ram0); +REGION_ALIAS("DATA_RAM_LMA", flash0); + +/* RAM region to be used for BSS segment.*/ +REGION_ALIAS("BSS_RAM", ram0); + +/* RAM region to be used for the default heap.*/ +REGION_ALIAS("HEAP_RAM", ram0); + +/* Generic rules inclusion.*/ +INCLUDE rules.ld + +/* TinyUF2 bootloader reset support */ +_board_dfu_dbl_tap = ORIGIN(ram0) + 40k - 4; /* this is based off the linker file for tinyuf2 */ |