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When compiling LVGL V8.0, some warnings were generated. It feels like a problem with the compiler.
stm32f407vet6 ; arm compiler v5(c99 mode & GNUexternsions)
There are no warnings and errors after compilation
Change the compiler model. When I changed the arm compiler v5 to V6, the warnings and errors disappeared, but the code runs abnormally.
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