Can be ported to the 51 series, AVR microcontroller or Win32 support Modbus RTU, Modbus TCP, Modbus " slave" source

modbus
......\bsd.txt
......\Changelog.txt
......\demo
......\....\AT91SAM7X_ROWLEY
......\....\................\demo.c
......\....\................\demo.hzp
......\....\................\demo.hzs
......\....\................\FreeRTOS
......\....\................\FreeRTOSConfig.h
......\....\................\........\croutine.c
......\....\................\........\include
......\....\................\........\.......\croutine.h
......\....\................\........\.......\FreeRTOS.h
......\....\................\........\.......\list.h
......\....\................\........\.......\portable.h
......\....\................\........\.......\portable.h.bak
......\....\................\........\.......\projdefs.h
......\....\................\........\.......\queue.h
......\....\................\........\.......\semphr.h
......\....\................\........\.......\task.h
......\....\................\........\list.c
......\....\................\........\portable
......\....\................\........\........\GCC
......\....\................\........\........\...\ARM7_AT91SAM7S
......\....\................\........\........\...\..............\port.c
......\....\................\........\........\...\..............\portISR.c
......\....\................\........\........\...\..............\portmacro.h
......\....\................\........\........\MemMang
......\....\................\........\........\.......\heap_1.c
......\....\................\........\........\.......\heap_2.c
......\....\................\........\........\.......\heap_3.c
......\....\................\........\queue.c
......\....\................\........\tasks.c
......\....\................\port
......\....\................\....\port.h
......\....\................\....\portevent.c
......\....\................\....\portother.c
......\....\................\....\portserial.c
......\....\................\....\porttimer.c
......\....\................\support
......\....\................\.......\AT91SAM7X256.h
......\....\................\.......\AT91SAM7_target.js
......\....\................\.......\lib_AT91SAM7X256.h
......\....\................\system
......\....\................\......\crt0.s
......\....\................\......\startup.s
......\....\ATSAM3S
......\....\.......\board
......\....\.......\.....\at91sam3s4
......\....\.......\.....\..........\AT91SAM3S4.h
......\....\.......\.....\..........\chip.h
......\....\.......\.....\..........\flash.icf
......\....\.......\.....\..........\flash.lds
......\....\.......\.....\..........\sram.icf
......\....\.......\.....\..........\sram.lds
......\....\.......\.....\..........\sram_flashloader.icf
......\....\.......\.....\..........\sram_samba.lds
......\....\.......\.....\at91sam3u4
......\....\.......\.....\..........\AT91SAM3U4.h
......\....\.......\.....\..........\chip.h
......\....\.......\.....\..........\flash.icf
......\....\.......\.....\..........\flash.lds
......\....\.......\.....\..........\flash.sct
......\....\.......\.....\..........\psram.icf
......\....\.......\.....\..........\psram.lds
......\....\.......\.....\..........\psram.sct
......\....\.......\.....\..........\sram.icf
......\....\.......\.....\..........\sram.lds
......\....\.......\.....\..........\sram.sct
......\....\.......\.....\..........\sram_samba.lds
......\....\.......\.....\board.h
......\....\.......\.....\board_cstartup_gnu.c
......\....\.......\.....\board_cstartup_iar.c
......\....\.......\.....\board_cstartup_keil.c
......\....\.......\.....\board_lowlevel.c
......\....\.......\.....\board_lowlevel.h
......\....\.......\.....\board_memories.c
......\....\.......\.....\board_memories.h
......\....\.......\.....\exceptions.c
......\....\.......\.....\exceptions.h
......\....\.......\demo.c
......\....\.......\demo.ewp
......\....\.......\demo.eww
......\....\.......\demo_rtu.bat
......\....\.......\libraries
......\....\.......\.........\cmsis
......\....\.......\.........\.....\core_cm3.c
......\....\.......\.........\.....\core_cm3.h
......\....\.......\.........\drivers
......\....\.......\.........\....

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