lpc17XX routines, gpio routine operation to achieve the buzzer

GPIO_Beep\(null)JLinkSettings.ini
.........\cfg_file\Startup\InChip.sct
.........\........\.......\LPC1700PinCfg.h
.........\........\.......\rt_sys_c.c
.........\........\.......\rt_sys_s.s
.........\........\.......\vector_cfg.h
.........\........\target_cfg.h
.........\........\zy_if\zy_if_cfg.h
.........\config.h
.........\Cortex-M3 Execute for lpc1700.map
.........\Cortex-M3_Execute_for_lpc1700.Uv2.bak
.........\Cortex-M3_Execute_for_lpc1700.uvgui.Administrator
.........\Cortex-M3_Execute_for_lpc1700.uvgui_Administrator.bak
.........\Cortex-M3_Execute_for_lpc1700.uvopt
.........\Cortex-M3_Execute_for_lpc1700.uvproj
.........\Cortex-M3_Execute_for_lpc1700_DebugInFlash.dep
.........\Cortex-M3_Execute_for_lpc1700_Release.dep
.........\JLinkLog.txt
.........\JLinkSettings.ini
.........\out\Cortex-M3 Execute for lpc1700.axf
.........\...\Cortex-M3 Execute for lpc1700.htm
.........\...\Cortex-M3 Execute for lpc1700.lnp
.........\...\Cortex-M3 Execute for lpc1700.plg
.........\...\ExtDll.iex
.........\...\lpc1700pincfg.crf
.........\...\lpc1700pincfg.d
.........\...\lpc1700pincfg.o
.........\...\main.crf
.........\...\main.d
.........\...\main.o
.........\...\rt_sys_c.crf
.........\...\rt_sys_c.d
.........\...\rt_sys_c.o
.........\...\rt_sys_s.d
.........\...\rt_sys_s.o
.........\...\target.crf
.........\...\target.d
.........\...\target.o
.........\...\vector_table.crf
.........\...\vector_table.d
.........\...\vector_table.o
.........\...\zy_if.crf
.........\...\zy_if.d
.........\...\zy_if.o
.........\USER_CODE\main.c
.........\ZY_CODE\firmware.h
.........\.......\Startup\lpc1700.h
.........\.......\.......\LPC1700PinCfg.c
.........\.......\.......\target.c
.........\.......\.......\target.h
.........\.......\.......\vector_table.c
.........\.......\zy_if\zy_if.c
.........\.......\.....\zy_if.h
.........\cfg_file\Startup
.........\........\zy_if
.........\ZY_CODE\Startup
.........\.......\zy_if
.........\cfg_file
.........\out
.........\USER_CODE
.........\ZY_CODE
GPIO_Beep

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