TI中文支持网Part Number:PROCESSOR-SDK-J721E
rtos SDK：ti-processor-sdk-rtos-j721e-evm-08_01_00_13
已加入#include <ti/drv/gpio/GPIO.h>该头文件
在vision_apps/platform/j721e/rtos/mcu3_0/main.c文件的appmain（）函数中加入
GPIO_init();
GPIO_write(0, 1);
出现如下编译错误：
undefined first referenced
symbol in file ——— —————-
GPIO_init /home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/module/platform.j721e.rtos.mcu3_0+linux/main.obj
GPIO_write /home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/module/platform.j721e.rtos.mcu3_0+linux/main.obj
error: unresolved symbols remain
error: errors encountered during linking;
"/home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/ou
t/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.out" not built
tiarmclang: error: tiarmlnk command failed with exit code 1 (use -v to see invocation)
concerto/finale.mak:212: recipe for target '/home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.out' failed
make[1]: [/home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.out] Error 1 (已忽略）
zhu he：
什么时候可以回复一下呢
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Shine：
请看一下下面的帖子是否有帮助。https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1111175/tda4vm-drive-gpio-output-high-low-level-on-mcu-of-main-domain
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zhu he：
这个我已经看过，问题根源可能不一样，帮忙分析一下
,
Shine：
我把您的问题转到英文e2e论坛了，请关注下面帖子的回复。https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1129908/tda4vm-build-error-for-gpio_init-and-gpio_write
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Shine：
请看下面e2e工程师的回复。Please include GPIO libraries for the mcu3_0.
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zhu he：
1.请问MCU3_0中的GPIO库在哪？ 如何添加。
2.MCU中不能使用<ti/drv/gpio/GPIO.h>驱动吗？
3.现在我的问题是想在MCU3_0中使用GPIO驱动中的接口函数。麻烦帮忙指导下。
,
Shine：
已在e2e帖子更新您的问题，请关注帖子的回复，谢谢!
,
zhu he：
已根据TI工程师的修改，在 apps/basic_demos/app_tirtos/concerto_r5f_inc.mak文件中加入了对库的链接，但是编译还是报相同的错误，帮忙继续在分析一下。
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zhu he：
帮忙更新一下
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Shine：
能否贴一下您的concerto_r5f_inc.mak文件？
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zhu he：
ifeq ($(TARGET_CPU),R5F)IDIRS+=$(VISION_APPS_PATH)/platform/$(SOC)/rtos/common IDIRS+=$(VISION_APPS_PATH)/kernels/img_proc/include IDIRS+=$(VISION_APPS_PATH)/kernels/fileio/include IDIRS+=$(VISION_APPS_PATH)/kernels/srv/include IDIRS+=$(VISION_APPS_PATH)/kernels/park_assist/include IDIRS+=$(PTK_PATH)/include IDIRS+=$(VISION_APPS_PATH)/kernels/stereo/include IDIRS+=$(IMAGING_PATH)/kernels/include IDIRS+=$(IMAGING_PATH)/sensor_drv/includeifeq ($(RTOS),SYSBIOS)LDIRS += $(PDK_PATH)/packages/ti/osal/lib/tirtos/$(SOC)/r5f/$(TARGET_BUILD)/ endif ifeq ($(RTOS),FREERTOS)LDIRS += $(PDK_PATH)/packages/ti/osal/lib/freertos/$(SOC)/r5f/$(TARGET_BUILD)/ endif LDIRS += $(PDK_PATH)/packages/ti/csl/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/board/lib/$(BUILD_PDK_BOARD)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/uart/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/gpio/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/fvid2/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/i2c/lib/$(SOC)/r5f/$(TARGET_BUILD)/LDIRS += $(PDK_PATH)/packages/ti/drv/enet/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/pm/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/transport/timeSync/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/transport/timeSync/lib/r5f/$(TARGET_BUILD)/LDIRS += $(TIOVX_PATH)/lib/$(TARGET_PLATFORM)/$(TARGET_CPU)/$(TARGET_OS)/$(TARGET_BUILD) LDIRS += $(IMAGING_PATH)/lib/$(TARGET_PLATFORM)/$(TARGET_CPU)/$(TARGET_OS)/$(TARGET_BUILD)STATIC_LIBS += app_utils_mem STATIC_LIBS += app_utils_console_io STATIC_LIBS += app_utils_ipc STATIC_LIBS += app_utils_remote_service STATIC_LIBS += app_utils_udma STATIC_LIBS += app_utils_misc STATIC_LIBS += app_utils_sensors STATIC_LIBS += app_utils_perf_stats STATIC_LIBS += app_utils_iss STATIC_LIBS += app_utils_draw2d STATIC_LIBS += app_utils_pcie_queue STATIC_LIBS += vx_target_kernels_img_proc_r5fTIOVX_LIBS = TIOVX_LIBS += vx_conformance_engine vx_conformance_tests vx_conformance_tests_testmodule TIOVX_LIBS += vx_tiovx_tests vx_tutorial vx_utils TIOVX_LIBS += vx_framework vx_vxu vx_platform_psdk_j7_rtos vx_kernels_target_utils TIOVX_LIBS += vx_kernels_test_kernels_tests vx_kernels_test_kernels TIOVX_LIBS += vx_target_kernels_source_sink TIOVX_LIBS += vx_kernels_host_utils vx_kernels_openvx_core TIOVX_LIBS += vx_kernels_hwa_tests vx_kernels_hwa TIOVX_LIBS += vx_target_kernels_vpac_nf vx_target_kernels_vpac_viss TIOVX_LIBS += vx_target_kernels_vpac_msc vx_target_kernels_vpac_ldc TIOVX_LIBS += vx_target_kernels_dmpac_dof vx_target_kernels_dmpac_sde TIOVX_LIBS += vx_target_kernels_display TIOVX_LIBS += vx_target_kernels_capture TIOVX_LIBS += vx_target_kernels_csitx TIOVX_LIBS += vx_target_kernels_j7_arm TIOVX_LIBS += vx_target_kernels_display_m2mIMAGING_LIBS= ti_imaging_awbalg IMAGING_LIBS += ti_imaging_dcc IMAGING_LIBS += vx_kernels_imaging IMAGING_LIBS += vx_target_kernels_imaging_aewb IMAGING_LIBS += ti_imaging_aealg IMAGING_LIBS += ti_imaging_sensordrv IMAGING_LIBS += ti_imaging_ittsrvrSYS_STATIC_LIBS += $(TIOVX_LIBS) SYS_STATIC_LIBS += $(IMAGING_LIBS)ADDITIONAL_STATIC_LIBS += ti.board.aer5f ADDITIONAL_STATIC_LIBS += ti.drv.uart.aer5f ADDITIONAL_STATIC_LIBS += ti.drv.gpio.aer5f ADDITIONAL_STATIC_LIBS += ipc.aer5f ADDITIONAL_STATIC_LIBS += fvid2.aer5f ADDITIONAL_STATIC_LIBS += udma.aer5f ADDITIONAL_STATIC_LIBS += ti.drv.i2c.aer5fADDITIONAL_STATIC_LIBS += ti.osal.aer5fifeq ($(RTOS),FREERTOS)ADDITIONAL_STATIC_LIBS += ti.kernel.freertos.aer5f endifADDITIONAL_STATIC_LIBS += ti.csl.aer5fifeq ($(RTOS),FREERTOS)ADDITIONAL_STATIC_LIBS += ti.csl.init.aer5f endifendif
,
Shine：
已把您的问题更新到e2e帖子，因为和国外有时差，回复可能会晚一些。
,
Shine：
下面是工程师的回复。请确认是否在ccs工程属性里添加了ti.drv.gpio.aer5f library?Do you mean you are still getting same error? This is because GPIO_init is defined in the ti.drv.gpio.aer5f library, so once this is included, you should not see same linker error.
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zhu he：
确定已加入了ti.drv.gpio.aer5f library。 最新报错如下：
Linking /home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.outundefinedfirst referencedsymbolin file-------------------------GPIO_v0_config /home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/pdk_jacinto_08_01_00_36/packages/ti/drv/gpio/lib/j721e/r5f/release/ti.drv.gpio.aer5f<GPIO_v0.oer5f>error: unresolved symbols remain error: errors encountered during linking;"/home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.out" not built tiarmclang: error: tiarmlnk command failed with exit code 1 (use -v to see invocation) concerto/finale.mak:212: recipe for target '/home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.out' failed make[1]: [/home/hezhu/code/ti-processor-sdk-rtos-j721e-evm-08_01_00_13/vision_apps/out/J7/R5F/FREERTOS/release/vx_app_rtos_linux_mcu3_0.out] Error 1 (已忽略）
,
Shine：
已把您的问题更新到e2e帖子，因为和国外有时差，回复可能会晚一些。
,
zhu he：
1.现在就是该问题是SDK的漏洞？
2.如果不升级该SDK，是否可以解决该问题。
3.或则有什么办法可以解决该问题？
,
Shine：
已把您的问题更新到e2e帖子，请关注帖子的回复。
,
zhu he：
是否有更新？
,
Shine：
抱歉，还没更新。我在帖子上催了一下。
,
Shine：
请看下面工程师的回复。
I used SDK8.4, because that's what i had. I dont think the method does not change for the SDK8.1 release. We just need to include GPIO libraries in the R5F concerto makefile..
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zhu he：
vision_apps/platform/j721e/rtos/concerto_r5f_inc.mak文件中是肯定是加了的，不确定为什么还是无效。
concerto_r5f_inc.mak文件如下：
ifeq ($(TARGET_CPU),R5F)IDIRS+=$(VISION_APPS_PATH)/platform/$(SOC)/rtos/common IDIRS+=$(VISION_APPS_PATH)/kernels/img_proc/include IDIRS+=$(VISION_APPS_PATH)/kernels/fileio/include IDIRS+=$(VISION_APPS_PATH)/kernels/srv/include IDIRS+=$(VISION_APPS_PATH)/kernels/park_assist/include IDIRS+=$(PTK_PATH)/include IDIRS+=$(VISION_APPS_PATH)/kernels/stereo/include IDIRS+=$(IMAGING_PATH)/kernels/include IDIRS+=$(IMAGING_PATH)/sensor_drv/includeifeq ($(RTOS),SYSBIOS)LDIRS += $(PDK_PATH)/packages/ti/osal/lib/tirtos/$(SOC)/r5f/$(TARGET_BUILD)/ endif ifeq ($(RTOS),FREERTOS)LDIRS += $(PDK_PATH)/packages/ti/osal/lib/freertos/$(SOC)/r5f/$(TARGET_BUILD)/ endif LDIRS += $(PDK_PATH)/packages/ti/csl/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/board/lib/$(BUILD_PDK_BOARD)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/uart/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/gpio/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/fvid2/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/i2c/lib/$(SOC)/r5f/$(TARGET_BUILD)/LDIRS += $(PDK_PATH)/packages/ti/drv/enet/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/drv/pm/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/transport/timeSync/lib/$(SOC)/r5f/$(TARGET_BUILD)/ LDIRS += $(PDK_PATH)/packages/ti/transport/timeSync/lib/r5f/$(TARGET_BUILD)/LDIRS += $(TIOVX_PATH)/lib/$(TARGET_PLATFORM)/$(TARGET_CPU)/$(TARGET_OS)/$(TARGET_BUILD) LDIRS += $(IMAGING_PATH)/lib/$(TARGET_PLATFORM)/$(TARGET_CPU)/$(TARGET_OS)/$(TARGET_BUILD)STATIC_LIBS += app_utils_mem STATIC_LIBS += app_utils_console_io STATIC_LIBS += app_utils_ipc STATIC_LIBS += app_utils_remote_service STATIC_LIBS += app_utils_udma STATIC_LIBS += app_utils_misc STATIC_LIBS += app_utils_sensors STATIC_LIBS += app_utils_perf_stats STATIC_LIBS += app_utils_iss STATIC_LIBS += app_utils_draw2d STATIC_LIBS += app_utils_pcie_queue STATIC_LIBS += vx_target_kernels_img_proc_r5fTIOVX_LIBS = TIOVX_LIBS += vx_conformance_engine vx_conformance_tests vx_conformance_tests_testmodule TIOVX_LIBS += vx_tiovx_tests vx_tutorial vx_utils TIOVX_LIBS += vx_framework vx_vxu vx_platform_psdk_j7_rtos vx_kernels_target_utils TIOVX_LIBS += vx_kernels_test_kernels_tests vx_kernels_test_kernels TIOVX_LIBS += vx_target_kernels_source_sink TIOVX_LIBS += vx_kernels_host_utils vx_kernels_openvx_core TIOVX_LIBS += vx_kernels_hwa_tests vx_kernels_hwa TIOVX_LIBS += vx_target_kernels_vpac_nf vx_target_kernels_vpac_viss TIOVX_LIBS += vx_target_kernels_vpac_msc vx_target_kernels_vpac_ldc TIOVX_LIBS += vx_target_kernels_dmpac_dof vx_target_kernels_dmpac_sde TIOVX_LIBS += vx_target_kernels_display TIOVX_LIBS += vx_target_kernels_capture TIOVX_LIBS += vx_target_kernels_csitx TIOVX_LIBS += vx_target_kernels_j7_arm TIOVX_LIBS += vx_target_kernels_display_m2mIMAGING_LIBS= ti_imaging_awbalg IMAGING_LIBS += ti_imaging_dcc IMAGING_LIBS += vx_kernels_imaging IMAGING_LIBS += vx_target_kernels_imaging_aewb IMAGING_LIBS += ti_imaging_aealg IMAGING_LIBS += ti_imaging_sensordrv IMAGING_LIBS += ti_imaging_ittsrvrSYS_STATIC_LIBS += $(TIOVX_LIBS) SYS_STATIC_LIBS += $(IMAGING_LIBS)ADDITIONAL_STATIC_LIBS += ti.board.aer5f ADDITIONAL_STATIC_LIBS += ti.drv.uart.aer5f ADDITIONAL_STATIC_LIBS += ti.drv.gpio.aer5f ADDITIONAL_STATIC_LIBS += ipc.aer5f ADDITIONAL_STATIC_LIBS += fvid2.aer5f ADDITIONAL_STATIC_LIBS += udma.aer5f ADDITIONAL_STATIC_LIBS += ti.drv.i2c.aer5fADDITIONAL_STATIC_LIBS += ti.osal.aer5fifeq ($(RTOS),FREERTOS)ADDITIONAL_STATIC_LIBS += ti.kernel.freertos.aer5f endifADDITIONAL_STATIC_LIBS += ti.csl.aer5fifeq ($(RTOS),FREERTOS)ADDITIONAL_STATIC_LIBS += ti.csl.init.aer5f endifendif
,
Shine：
已把您的问题更新到e2e帖子，请关注帖子的回复。
,
Shine：
请看下面工程师的回复。While building SDK ,can you please add "SHOW_COMMANDS=1" in this command line like "make sdk SHOW_COMMANDS=1"and share the build log?
