not working, fix at home, init hal from C was removed

semestralka_2/build.rs

@@ -1,5 +1,6 @@
 // build.rs
 
+use std::env;
 use std::path::PathBuf;
 
 fn main() {
@@ -25,6 +26,7 @@ fn main() {
         "stm32u5xx_hal_ramcfg.c",
         "stm32u5xx_hal_rtc.c",
         "stm32u5xx_hal_rtc_ex.c",
+        "stm32u5xx_hal_iwdg.c",
     ];
 
     let mut build = cc::Build::new();
@@ -42,6 +44,7 @@ fn main() {
         .include(&example_inc)
         .define("USE_HAL_DRIVER", None)
         .define("STM32U575xx", None)
+        .define("HAL_IWDG_MODULE_ENABLED", None)
         .flag("-mthumb")
         .flag("-march=armv8-m.main+fp.dp")
         .flag("-mfloat-abi=hard")