Add Raspberry Pi Pico port (#1232)

* Add Raspberry Pi Pico port - Adds BACnet/IP with abstracted network layer - Adds BACnet MS/TP support using RS485/UART - Includes README with examples * Add Pico 2 MS/TP demo, CI, and docs
2026-03-25 14:22:09 +01:00
parent 5eda68d381
commit 17e94092a1
17 changed files with 1720 additions and 0 deletions
@@ -0,0 +1,131 @@
+cmake_minimum_required(VERSION 3.13)
+
+if (NOT DEFINED PICO_SDK_PATH AND DEFINED ENV{PICO_SDK_PATH})
+    set(PICO_SDK_PATH "$ENV{PICO_SDK_PATH}")
+endif()
+if (DEFINED PICO_SDK_PATH)
+    get_filename_component(
+        PICO_SDK_PATH "${PICO_SDK_PATH}" REALPATH
+        BASE_DIR "${CMAKE_CURRENT_BINARY_DIR}")
+    set(ENV{PICO_SDK_PATH} "${PICO_SDK_PATH}")
+endif()
+
+# Default this port to Pico 2.
+if (NOT PICO_BOARD)
+    set(PICO_BOARD pico2 CACHE STRING "Pico SDK board for the BACnet Pico port" FORCE)
+endif()
+if (NOT DEFINED ENV{PICO_BOARD})
+    set(ENV{PICO_BOARD} "${PICO_BOARD}")
+endif()
+
+include(${PICO_SDK_PATH}/external/pico_sdk_import.cmake)
+
+project(bacnet_pico_port C CXX ASM)
+
+set(CMAKE_C_STANDARD 11)
+set(CMAKE_CXX_STANDARD 17)
+
+pico_sdk_init()
+
+set(BACNET_ROOT ${CMAKE_CURRENT_LIST_DIR}/../..)
+set(BACNET_SRC ${BACNET_ROOT}/src)
+set(BACNET_CORE ${BACNET_SRC}/bacnet)
+set(BACNET_BASIC ${BACNET_SRC}/bacnet/basic)
+
+set(BACNET_COMMON_SOURCES
+    ${BACNET_BASIC}/binding/address.c
+    ${BACNET_BASIC}/object/client/device-client.c
+    ${BACNET_BASIC}/npdu/h_npdu.c
+    ${BACNET_BASIC}/service/h_apdu.c
+    ${BACNET_BASIC}/service/h_cov.c
+    ${BACNET_BASIC}/service/h_dcc.c
+    ${BACNET_BASIC}/service/h_noserv.c
+    ${BACNET_BASIC}/service/h_rd.c
+    ${BACNET_BASIC}/service/h_rp.c
+    ${BACNET_BASIC}/service/h_rpm.c
+    ${BACNET_BASIC}/service/h_whohas.c
+    ${BACNET_BASIC}/service/h_whois.c
+    ${BACNET_BASIC}/service/h_wp.c
+    ${BACNET_BASIC}/service/s_iam.c
+    ${BACNET_BASIC}/service/s_ihave.c
+    ${BACNET_BASIC}/sys/datetime_mstimer.c
+    ${BACNET_BASIC}/sys/days.c
+    ${BACNET_BASIC}/sys/dst.c
+    ${BACNET_BASIC}/sys/debug.c
+    ${BACNET_BASIC}/sys/ringbuf.c
+    ${BACNET_BASIC}/sys/fifo.c
+    ${BACNET_BASIC}/sys/mstimer.c
+    ${BACNET_BASIC}/tsm/tsm.c
+    ${BACNET_CORE}/abort.c
+    ${BACNET_CORE}/bacaction.c
+    ${BACNET_CORE}/bacaddr.c
+    ${BACNET_CORE}/bacapp.c
+    ${BACNET_CORE}/bacdcode.c
+    ${BACNET_CORE}/bacdest.c
+    ${BACNET_CORE}/bacdevobjpropref.c
+    ${BACNET_CORE}/bacerror.c
+    ${BACNET_CORE}/bacint.c
+    ${BACNET_CORE}/bacreal.c
+    ${BACNET_CORE}/bacstr.c
+    ${BACNET_CORE}/datalink/cobs.c
+    ${BACNET_CORE}/datalink/crc.c
+    ${BACNET_CORE}/datalink/dlmstp.c
+    ${BACNET_CORE}/datalink/mstp.c
+    ${BACNET_CORE}/datalink/mstptext.c
+    ${BACNET_CORE}/datetime.c
+    ${BACNET_CORE}/dcc.c
+    ${BACNET_CORE}/hostnport.c
+    ${BACNET_CORE}/iam.c
+    ${BACNET_CORE}/ihave.c
+    ${BACNET_CORE}/indtext.c
+    ${BACNET_CORE}/memcopy.c
+    ${BACNET_CORE}/npdu.c
+    ${BACNET_CORE}/proplist.c
+    ${BACNET_CORE}/rd.c
+    ${BACNET_CORE}/reject.c
+    ${BACNET_CORE}/rp.c
+    ${BACNET_CORE}/rpm.c
+    ${BACNET_CORE}/timestamp.c
+    ${BACNET_CORE}/whohas.c
+    ${BACNET_CORE}/whois.c
+    ${BACNET_CORE}/wp.c
+)
+
+set(BACNET_MSTP_SOURCES
+    ${BACNET_COMMON_SOURCES}
+    ${CMAKE_CURRENT_LIST_DIR}/dlenv.c
+    ${CMAKE_CURRENT_LIST_DIR}/rs485.c
+    ${CMAKE_CURRENT_LIST_DIR}/mstimer_init.c
+    ${CMAKE_CURRENT_LIST_DIR}/main.c
+)
+
+add_executable(bacnet-pico-mstp ${BACNET_MSTP_SOURCES})
+
+target_include_directories(bacnet-pico-mstp PRIVATE
+    ${CMAKE_CURRENT_LIST_DIR}
+    ${BACNET_SRC}
+)
+
+target_compile_definitions(bacnet-pico-mstp PRIVATE
+    BACDL_MSTP
+    MAX_APDU=480
+    BIG_ENDIAN=0
+    PRINT_ENABLED=0
+    MAX_TSM_TRANSACTIONS=1
+    CRC_USE_TABLE
+    BACAPP_MINIMAL
+    BACAPP_TIMESTAMP
+    BACNET_STACK_DEPRECATED_DISABLE
+    BACNET_PROTOCOL_REVISION=16
+)
+
+target_link_libraries(bacnet-pico-mstp
+    pico_stdlib
+    hardware_uart
+    hardware_gpio
+    hardware_timer
+)
+
+pico_enable_stdio_usb(bacnet-pico-mstp 1)
+pico_enable_stdio_uart(bacnet-pico-mstp 0)
+pico_add_extra_outputs(bacnet-pico-mstp)