W5100S-EVB-Pico build error

Question

Hello. I’m trying to use W5100S-EVB-Pico in C-. I followed “RP2040-HAT-C/getting_started.md at main · Wiznet/RP2040-HAT-C · GitHub” and downloaded your code and tried to build loopback project. download your sdk from git move to loopback folder in examples mkdir build cd build cmake … and got error…even though I didn’t changed any… I have installed pico sdk and it works with blink example on W5100S-EVB-Pico. I haven’t changed any path after download your code. Seems like a configuration issue but I couldn’t make it work. Could you help to build loopback example? cmake .. CMake Warning (dev) in CMakeLists.txt: No project() command is present. The top-level CMakeLists.txt file must contain a literal, direct call to the project() command. Add a line of code such as project(ProjectName) near the top of the file, but after cmake_minimum_required(). CMake is pretending there is a "project(Project)" command on the first line. This warning is for project developers. Use -Wno-dev to suppress it. -- The C compiler identification is GNU 9.3.0 -- The CXX compiler identification is GNU 9.3.0 -- Check for working C compiler: /usr/bin/cc -- Check for working C compiler: /usr/bin/cc -- works -- Detecting C compiler ABI info -- Detecting C compiler ABI info - done -- Detecting C compile features -- Detecting C compile features - done -- Check for working CXX compiler: /usr/bin/c++ -- Check for working CXX compiler: /usr/bin/c++ -- works -- Detecting CXX compiler ABI info -- Detecting CXX compiler ABI info - done -- Detecting CXX compile features -- Detecting CXX compile features - done CMake Error at CMakeLists.txt:16 (pico_enable_stdio_usb): Unknown CMake command "pico_enable_stdio_usb". CMake Warning (dev) in CMakeLists.txt: No cmake_minimum_required command is present. A line of code such as cmake_minimum_required(VERSION 3.16) should be added at the top of the file. The version specified may be lower if you wish to support older CMake versions for this project. For more information run "cmake --help-policy CMP0000". This warning is for project developers. Use -Wno-dev to suppress it. -- Configuring incomplete, errors occurred!

austin · Answer

Hello, Try building in the top-level directory(RP2040-HAT-C), not in the loopback example directory(RP2040-HAT-C/examples/loopback). Thanks.