MicroController wrote: ↑

Fri Sep 06, 2024 3:39 am

Is port_det_stat() declared as extern "C" when used from C++? (cf. https://embeddedartistry.com/blog/2017/ ... -extern-c/)

yes，the .h header file include "extren "C"

Why does a simple project compile successfully by changing the source file A.cpp of custom component A to A.c, otherwise there will be a link error for undefined reference to "port_det_stat() - (in custom component B)"

Thank you for your reply. I will give it a try, but the tutorial video I saw did not require this. Instead, it stated that 'main' is a special component that includes default components from the installation directory and custom components from the project directory.

Hello everyone, the main component calls a function in component A（wifi_app）, and component A calls a function in component B(port_event). Component A has added a dependency on component B to its CMakeLists, but when linking, the function defined in component B cannot be found, prompting an "undefin...

我把 event_handler中调用的port_event组件中定义的port_set/get/clean_status函数，直接用xEventGroupSet/get/cleanBits（即freertos组件的API函数替代），工程编译就成功了。虽然成功，但是还想请大神指点下，自定义的组件，难道不能被别的组件访问吗？而且还加入了依赖，百思不得解。

我把 event_handler中调用的port_event组件中定义的port_set/get/clean_status函数，直接用xEventGroupSet/get/cleanBits（即freertos组件的API函数替代），工程编译就成功了。虽然成功，但是还想请大神指点下，自定义的组件，难道不能被别的组件访问吗？而且还加入了依赖，百思不得解。

我把 event_handler中调用的port_event组件中定义的port_set/get/clean_status函数，直接用xEventGroupSet/get/cleanBits（即freertos组件的API函数替代），工程编译就成功了。虽然成功，但是还想请大神指点下，自定义的组件，难道不能被别的组件访问吗？而且还加入了依赖，百思不得解。

Project as attached，ubuntu 20.04 和ESP-IDF V5.1.0 building,idf_py_stdout_output_14368 as folling: How can I solve this problem，I hope to receive your help. ../../../components/driver/deprecated/driver/timer.h:16:2: warning: #warning "legacy timer group driver is deprecated, please migrate to driver/g...

windows enviroment,idf version is V5.3.0

Hi guys. When I tried to compile my source, it failed saying undefined reference to `port_clear_status(EVENT_GROUP_SELECT_T, unsigned long)' . Here is my directory structure. - components -- hal_param_manage --------hal_param_manage.c --------hal_param_manage.h CMakeLists.txt --linux_list --------li...