hal working

semestralka_2/build.rs

@@ -1,4 +1,5 @@
-use std::env;
+// build.rs
+
 use std::path::PathBuf;
 
 fn main() {
@@ -7,9 +8,9 @@ fn main() {
     let hal_driver = cube_path.join("Drivers/STM32U5xx_HAL_Driver");
     let cmsis = cube_path.join("Drivers/CMSIS");
     let device = cmsis.join("Device/ST/STM32U5xx");
-
     let example_inc = cube_path.join("Projects/NUCLEO-U575ZI-Q/Examples/GPIO/GPIO_IOToggle/Inc");
 
+    // HAL source files
     let hal_srcs = [
         "stm32u5xx_hal.c",
         "stm32u5xx_hal_rcc.c",
@@ -27,6 +28,9 @@ fn main() {
     ];
 
     let mut build = cc::Build::new();
+
+    // system_stm32u5xx.c adds SystemCoreClock, tables, etc.
+    build.file(device.join("Source/Templates/system_stm32u5xx.c"));
     for src in hal_srcs {
         build.file(hal_driver.join("Src").join(src));
     }
@@ -38,7 +42,6 @@ fn main() {
         .include(&example_inc)
         .define("USE_HAL_DRIVER", None)
         .define("STM32U575xx", None)
-        // flags
         .flag("-mthumb")
         .flag("-march=armv8-m.main+fp.dp")
         .flag("-mfloat-abi=hard")