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# T-Modem-c1224 Pico firmware — ONE UF2 · GPLv3 · AS-IS
# USB KISS half-TNC (HDLC on Pico + bitbang GP6/GP7). No softmodem.
cmake_minimum_required(VERSION 3.13)
if(NOT DEFINED ENV{PICO_SDK_PATH} AND NOT DEFINED PICO_SDK_PATH)
message(FATAL_ERROR "Set PICO_SDK_PATH to the Raspberry Pi Pico SDK root")
endif()
if(DEFINED ENV{PICO_SDK_PATH} AND NOT DEFINED PICO_SDK_PATH)
set(PICO_SDK_PATH $ENV{PICO_SDK_PATH})
endif()
include(${PICO_SDK_PATH}/external/pico_sdk_import.cmake)
project(c1224_firmware C CXX ASM)
set(CMAKE_C_STANDARD 11)
set(CMAKE_CXX_STANDARD 17)
pico_sdk_init()
# Physical rate = stuffed crystal. Bitbang must match: 1200 (Y1) or 2400 (Y2).
if(NOT DEFINED C1224_BITRATE)
set(C1224_BITRATE 1200)
endif()
add_executable(c1224
src/common/main.c
src/common/status.c
src/common/ptt.c
src/common/modem_probe.c
src/common/usb_cmd.c
src/common/display.c
src/common/board_pins.c
src/common/crystal_steer.c
src/common/baud_config.c
src/common/config.c
src/common/sense.c
src/common/hdlc.c
src/common/kiss.c
src/common/afsk_bitbang.c
src/common/banner.c
)
target_include_directories(c1224 PRIVATE include)
target_compile_definitions(c1224 PRIVATE C1224_BITRATE=${C1224_BITRATE})
target_link_libraries(c1224
pico_stdlib
hardware_gpio
hardware_i2c
hardware_flash
hardware_sync
)
pico_enable_stdio_usb(c1224 1)
pico_enable_stdio_uart(c1224 0)
pico_add_extra_outputs(c1224)
pico_set_binary_type(c1224 default)
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