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author | Joel Challis <[email protected]> | 2023-01-28 20:40:47 +0000 |
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committer | GitHub <[email protected]> | 2023-01-29 07:40:47 +1100 |
commit | 832479c7fbc544a3e8b305af7df9996fa3c5ba00 (patch) | |
tree | b8dde1a4838cd2365ff7e131f2814e341f818625 /platforms/avr | |
parent | b7274343913eb3e019f0dc08fa8f7774165e787d (diff) | |
download | qmk_firmware-832479c7fbc544a3e8b305af7df9996fa3c5ba00.tar.gz qmk_firmware-832479c7fbc544a3e8b305af7df9996fa3c5ba00.zip |
Split out mcu_selection to platform (#19701)
Diffstat (limited to 'platforms/avr')
-rw-r--r-- | platforms/avr/mcu_selection.mk | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/platforms/avr/mcu_selection.mk b/platforms/avr/mcu_selection.mk new file mode 100644 index 0000000000..c49818fbfb --- /dev/null +++ b/platforms/avr/mcu_selection.mk @@ -0,0 +1,95 @@ +ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2 atmega16u4 atmega32u4 at90usb646 at90usb647 at90usb1286 at90usb1287)) + PROTOCOL = LUFA + + # Processor frequency. + # This will define a symbol, F_CPU, in all source code files equal to the + # processor frequency in Hz. You can then use this symbol in your source code to + # calculate timings. Do NOT tack on a 'UL' at the end, this will be done + # automatically to create a 32-bit value in your source code. + # + # This will be an integer division of F_USB below, as it is sourced by + # F_USB after it has run through any CPU prescalers. Note that this value + # does not *change* the processor frequency - it should merely be updated to + # reflect the processor speed set externally so that the code can use accurate + # software delays. + F_CPU ?= 16000000 + + # LUFA specific + # + # Target architecture (see library "Board Types" documentation). + ARCH = AVR8 + + # Input clock frequency. + # This will define a symbol, F_USB, in all source code files equal to the + # input clock frequency (before any prescaling is performed) in Hz. This value may + # differ from F_CPU if prescaling is used on the latter, and is required as the + # raw input clock is fed directly to the PLL sections of the AVR for high speed + # clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL' + # at the end, this will be done automatically to create a 32-bit value in your + # source code. + # + # If no clock division is performed on the input clock inside the AVR (via the + # CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU. + F_USB ?= $(F_CPU) + + # Interrupt driven control endpoint task + ifeq (,$(filter $(NO_INTERRUPT_CONTROL_ENDPOINT),yes)) + OPT_DEFS += -DINTERRUPT_CONTROL_ENDPOINT + endif + ifneq (,$(filter $(MCU),at90usb162 atmega16u2 atmega32u2)) + NO_I2C = yes + endif +endif + +ifneq (,$(filter $(MCU),atmega32a)) + # MCU name for avrdude + AVRDUDE_MCU = m32 + + PROTOCOL = VUSB + + # Processor frequency. + # This will define a symbol, F_CPU, in all source code files equal to the + # processor frequency in Hz. You can then use this symbol in your source code to + # calculate timings. Do NOT tack on a 'UL' at the end, this will be done + # automatically to create a 32-bit value in your source code. + F_CPU ?= 12000000 +endif + +ifneq (,$(filter $(MCU),atmega328p)) + # MCU name for avrdude + AVRDUDE_MCU = m328p + + PROTOCOL = VUSB + + # Processor frequency. + # This will define a symbol, F_CPU, in all source code files equal to the + # processor frequency in Hz. You can then use this symbol in your source code to + # calculate timings. Do NOT tack on a 'UL' at the end, this will be done + # automatically to create a 32-bit value in your source code. + F_CPU ?= 16000000 +endif + +ifneq (,$(filter $(MCU),atmega328)) + # MCU name for avrdude + AVRDUDE_MCU = m328 + + PROTOCOL = VUSB + + # Processor frequency. + # This will define a symbol, F_CPU, in all source code files equal to the + # processor frequency in Hz. You can then use this symbol in your source code to + # calculate timings. Do NOT tack on a 'UL' at the end, this will be done + # automatically to create a 32-bit value in your source code. + F_CPU ?= 16000000 +endif + +ifneq (,$(filter $(MCU),attiny85)) + PROTOCOL = VUSB + + # Processor frequency. + # This will define a symbol, F_CPU, in all source code files equal to the + # processor frequency in Hz. You can then use this symbol in your source code to + # calculate timings. Do NOT tack on a 'UL' at the end, this will be done + # automatically to create a 32-bit value in your source code. + F_CPU ?= 16500000 +endif |