From 0140baf7e0b041df841f8782743344a4ebe4ebe1 Mon Sep 17 00:00:00 2001 From: Ryan Date: Sat, 19 Sep 2020 13:00:18 +1000 Subject: [PATCH] Add STM32F401/F411 to mcu_selection.mk (#10278) * Reorder STM32 MCUs * Add STM32F4xx to mcu_selection.mk * Set MCU for phoenix and tkw/stoutgat/v2/f411 --- .../handwired/onekey/blackpill_f401/rules.mk | 30 +--- .../handwired/onekey/blackpill_f411/rules.mk | 30 +--- keyboards/handwired/riblee_f401/rules.mk | 32 +--- keyboards/matrix/m20add/rules.mk | 27 +-- keyboards/matrix/noah/rules.mk | 27 +-- keyboards/phoenix/rules.mk | 34 +--- keyboards/tkw/stoutgat/v2/f411/rules.mk | 30 +--- keyboards/zvecr/zv48/f401/rules.mk | 30 +--- keyboards/zvecr/zv48/f411/rules.mk | 30 +--- quantum/mcu_selection.mk | 160 +++++++++++++----- 10 files changed, 148 insertions(+), 282 deletions(-) diff --git a/keyboards/handwired/onekey/blackpill_f401/rules.mk b/keyboards/handwired/onekey/blackpill_f401/rules.mk index 609262049c..6eb37a581d 100644 --- a/keyboards/handwired/onekey/blackpill_f401/rules.mk +++ b/keyboards/handwired/onekey/blackpill_f401/rules.mk @@ -1,30 +1,8 @@ -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F401xC -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F401 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 +# MCU name +MCU = STM32F401 -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 # Build Options # change yes to no to disable diff --git a/keyboards/handwired/onekey/blackpill_f411/rules.mk b/keyboards/handwired/onekey/blackpill_f411/rules.mk index f2e0f2b4f9..7cf886431f 100644 --- a/keyboards/handwired/onekey/blackpill_f411/rules.mk +++ b/keyboards/handwired/onekey/blackpill_f411/rules.mk @@ -1,30 +1,8 @@ -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F411xE -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F411 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 +# MCU name +MCU = STM32F411 -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 # Build Options # change yes to no to disable diff --git a/keyboards/handwired/riblee_f401/rules.mk b/keyboards/handwired/riblee_f401/rules.mk index eab426a375..2cb1d380e1 100644 --- a/keyboards/handwired/riblee_f401/rules.mk +++ b/keyboards/handwired/riblee_f401/rules.mk @@ -1,30 +1,8 @@ -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F401xC -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F401 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 +# MCU name +MCU = STM32F401 -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 # Build Options # change yes to no to disable @@ -43,4 +21,4 @@ BACKLIGHT_ENABLE = yes # Enable keyboard backlight functionality BACKLIGHT_DRIVER = software RGBLIGHT_ENABLE = no # Enable keyboard RGB underglow BLUETOOTH_ENABLE = no # Enable Bluetooth -AUDIO_ENABLE = no # Audio output \ No newline at end of file +AUDIO_ENABLE = no # Audio output diff --git a/keyboards/matrix/m20add/rules.mk b/keyboards/matrix/m20add/rules.mk index 6dba153932..fb97c1d3c8 100644 --- a/keyboards/matrix/m20add/rules.mk +++ b/keyboards/matrix/m20add/rules.mk @@ -1,38 +1,15 @@ -## chip/board settings -# - the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx +# MCU name +MCU = STM32F411 # Linker script to use # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ # or /ld/ MCU_LDSCRIPT = m20add_boot -# Startup code to use -# - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx - # Board: it should exist either in /os/hal/boards/ # or /boards BOARD = m20add_bd -# Cortex version -MCU = cortex-m4 - -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 - -USE_FPU = yes - -# Vector table for application -# 0x00000000-0x00001000 area is occupied by bootlaoder.*/ -OPT_DEFS = - -# Options to pass to dfu-util when flashing -#DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -#DFU_SUFFIX_ARGS = -p DF11 -v 0483 - # Build Options # comment out to disable the options. # diff --git a/keyboards/matrix/noah/rules.mk b/keyboards/matrix/noah/rules.mk index 094364e11b..19e432d2a0 100644 --- a/keyboards/matrix/noah/rules.mk +++ b/keyboards/matrix/noah/rules.mk @@ -1,38 +1,15 @@ -## chip/board settings -# - the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx +# MCU name +MCU = STM32F411 # Linker script to use # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ # or /ld/ MCU_LDSCRIPT = noah_boot -# Startup code to use -# - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx - # Board: it should exist either in /os/hal/boards/ # or /boards BOARD = noah_bd -# Cortex version -MCU = cortex-m4 - -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 - -USE_FPU = yes - -# Vector table for application -# 0x00000000-0x00001000 area is occupied by bootlaoder.*/ -OPT_DEFS = - -# Options to pass to dfu-util when flashing -#DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -#DFU_SUFFIX_ARGS = -p DF11 -v 0483 - # Build Options # comment out to disable the options. # diff --git a/keyboards/phoenix/rules.mk b/keyboards/phoenix/rules.mk index 6c6c8446ab..968c6548c0 100644 --- a/keyboards/phoenix/rules.mk +++ b/keyboards/phoenix/rules.mk @@ -1,3 +1,9 @@ +# MCU name +MCU = STM32F401 + +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 + # Build Options # change yes to no to disable # @@ -17,32 +23,4 @@ SPLIT_KEYBOARD = yes SERIAL_DRIVER = usart KEYBOARD_SHARED_EP = yes -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F401xC -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F401 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 - -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 - OPT_DEFS += -DSTM32_DMA_REQUIRED=TRUE diff --git a/keyboards/tkw/stoutgat/v2/f411/rules.mk b/keyboards/tkw/stoutgat/v2/f411/rules.mk index 61add3aed5..4f7f52e62b 100644 --- a/keyboards/tkw/stoutgat/v2/f411/rules.mk +++ b/keyboards/tkw/stoutgat/v2/f411/rules.mk @@ -1,27 +1,5 @@ -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F411xE -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F411 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 +# MCU name +MCU = STM32F411 -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 diff --git a/keyboards/zvecr/zv48/f401/rules.mk b/keyboards/zvecr/zv48/f401/rules.mk index e41d5ef7a2..950442af96 100644 --- a/keyboards/zvecr/zv48/f401/rules.mk +++ b/keyboards/zvecr/zv48/f401/rules.mk @@ -1,27 +1,5 @@ -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F401xC -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F401 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 +# MCU name +MCU = STM32F401 -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 diff --git a/keyboards/zvecr/zv48/f411/rules.mk b/keyboards/zvecr/zv48/f411/rules.mk index 61add3aed5..4f7f52e62b 100644 --- a/keyboards/zvecr/zv48/f411/rules.mk +++ b/keyboards/zvecr/zv48/f411/rules.mk @@ -1,27 +1,5 @@ -## chip/board settings -# the next two should match the directories in -# /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) -MCU_FAMILY = STM32 -MCU_SERIES = STM32F4xx -# linker script to use -# it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ -# or /ld/ -MCU_LDSCRIPT = STM32F411xE -# startup code to use -# is should exist in /os/common/ports/ARMCMx/compilers/GCC/mk/ -MCU_STARTUP = stm32f4xx -# it should exist either in /os/hal/boards/ -# or /boards -BOARD = BLACKPILL_STM32_F411 -# Cortex version -# Teensy LC is cortex-m0; Teensy 3.x are cortex-m4 -MCU = cortex-m4 -# ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 -ARMV = 7 -USE_FPU = yes -# Address of the booloader in system memory -STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 +# MCU name +MCU = STM32F411 -# Options to pass to dfu-util when flashing -DFU_ARGS = -d 0483:df11 -a 0 -s 0x08000000:leave -DFU_SUFFIX_ARGS = -v 0483 -p df11 +# Address of the bootloader in system memory +STM32_BOOTLOADER_ADDRESS = 0x1FFF0000 diff --git a/quantum/mcu_selection.mk b/quantum/mcu_selection.mk index 33a0cabc84..6ec5dff5f5 100644 --- a/quantum/mcu_selection.mk +++ b/quantum/mcu_selection.mk @@ -82,37 +82,37 @@ ifneq ($(findstring MK20DX256, $(MCU)),) BOARD ?= PJRC_TEENSY_3_1 endif -ifneq ($(findstring STM32F303, $(MCU)),) +ifneq ($(findstring STM32F042, $(MCU)),) # Cortex version - MCU = cortex-m4 + MCU = cortex-m0 # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 - ARMV = 7 + ARMV = 6 ## chip/board settings # - the next two should match the directories in # /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) MCU_FAMILY = STM32 - MCU_SERIES = STM32F3xx + MCU_SERIES = STM32F0xx # Linker script to use # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ # or /ld/ - MCU_LDSCRIPT ?= STM32F303xC + MCU_LDSCRIPT ?= STM32F042x6 # Startup code to use # - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ - MCU_STARTUP ?= stm32f3xx + MCU_STARTUP ?= stm32f0xx # Board: it should exist either in /os/hal/boards/, # /boards/, or drivers/boards/ - BOARD ?= GENERIC_STM32_F303XC + BOARD ?= GENERIC_STM32_F042X6 - USE_FPU ?= yes + USE_FPU ?= no # Options to pass to dfu-util when flashing - DFU_ARGS ?= -d 0483:df11 -a 0 -s 0x08000000:leave - DFU_SUFFIX_ARGS ?= -v 0483 -p df11 + DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave + DFU_SUFFIX_ARGS ?= -v 0483 -p DF11 endif ifneq ($(findstring STM32F072, $(MCU)),) @@ -144,41 +144,8 @@ ifneq ($(findstring STM32F072, $(MCU)),) USE_FPU ?= no # Options to pass to dfu-util when flashing - DFU_ARGS ?= -d 0483:df11 -a 0 -s 0x08000000:leave - DFU_SUFFIX_ARGS ?= -v 0483 -p df11 -endif - -ifneq ($(findstring STM32F042, $(MCU)),) - # Cortex version - MCU = cortex-m0 - - # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 - ARMV = 6 - - ## chip/board settings - # - the next two should match the directories in - # /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) - MCU_FAMILY = STM32 - MCU_SERIES = STM32F0xx - - # Linker script to use - # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ - # or /ld/ - MCU_LDSCRIPT ?= STM32F042x6 - - # Startup code to use - # - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ - MCU_STARTUP ?= stm32f0xx - - # Board: it should exist either in /os/hal/boards/, - # /boards/, or drivers/boards/ - BOARD ?= GENERIC_STM32_F042X6 - - USE_FPU ?= no - - # Options to pass to dfu-util when flashing - DFU_ARGS ?= -d 0483:df11 -a 0 -s 0x08000000:leave - DFU_SUFFIX_ARGS ?= -v 0483 -p df11 + DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave + DFU_SUFFIX_ARGS ?= -v 0483 -p DF11 endif ifneq ($(findstring STM32F103, $(MCU)),) @@ -210,8 +177,107 @@ ifneq ($(findstring STM32F103, $(MCU)),) USE_FPU ?= no # Options to pass to dfu-util when flashing - DFU_ARGS ?= -d 0483:df11 -a 0 -s 0x08000000:leave - DFU_SUFFIX_ARGS ?= -v 0483 -p df11 + DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave + DFU_SUFFIX_ARGS ?= -v 0483 -p DF11 +endif + +ifneq ($(findstring STM32F303, $(MCU)),) + # Cortex version + MCU = cortex-m4 + + # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 + ARMV = 7 + + ## chip/board settings + # - the next two should match the directories in + # /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) + MCU_FAMILY = STM32 + MCU_SERIES = STM32F3xx + + # Linker script to use + # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ + # or /ld/ + MCU_LDSCRIPT ?= STM32F303xC + + # Startup code to use + # - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ + MCU_STARTUP ?= stm32f3xx + + # Board: it should exist either in /os/hal/boards/, + # /boards/, or drivers/boards/ + BOARD ?= GENERIC_STM32_F303XC + + USE_FPU ?= yes + + # Options to pass to dfu-util when flashing + DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave + DFU_SUFFIX_ARGS ?= -v 0483 -p DF11 +endif + +ifneq ($(findstring STM32F401, $(MCU)),) + # Cortex version + MCU = cortex-m4 + + # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 + ARMV = 7 + + ## chip/board settings + # - the next two should match the directories in + # /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) + MCU_FAMILY = STM32 + MCU_SERIES = STM32F4xx + + # Linker script to use + # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ + # or /ld/ + MCU_LDSCRIPT ?= STM32F401xC + + # Startup code to use + # - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ + MCU_STARTUP ?= stm32f4xx + + # Board: it should exist either in /os/hal/boards/, + # /boards/, or drivers/boards/ + BOARD ?= BLACKPILL_STM32_F401 + + USE_FPU ?= yes + + # Options to pass to dfu-util when flashing + DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave + DFU_SUFFIX_ARGS ?= -v 0483 -p DF11 +endif + +ifneq ($(findstring STM32F411, $(MCU)),) + # Cortex version + MCU = cortex-m4 + + # ARM version, CORTEX-M0/M1 are 6, CORTEX-M3/M4/M7 are 7 + ARMV = 7 + + ## chip/board settings + # - the next two should match the directories in + # /os/hal/ports/$(MCU_FAMILY)/$(MCU_SERIES) + MCU_FAMILY = STM32 + MCU_SERIES = STM32F4xx + + # Linker script to use + # - it should exist either in /os/common/ports/ARMCMx/compilers/GCC/ld/ + # or /ld/ + MCU_LDSCRIPT ?= STM32F411xE + + # Startup code to use + # - it should exist in /os/common/startup/ARMCMx/compilers/GCC/mk/ + MCU_STARTUP ?= stm32f4xx + + # Board: it should exist either in /os/hal/boards/, + # /boards/, or drivers/boards/ + BOARD ?= BLACKPILL_STM32_F411 + + USE_FPU ?= yes + + # Options to pass to dfu-util when flashing + DFU_ARGS ?= -d 0483:DF11 -a 0 -s 0x08000000:leave + DFU_SUFFIX_ARGS ?= -v 0483 -p DF11 endif ifneq (,$(filter $(MCU),atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb1286))