s/eabihf/eabi/

example/.cargo/config

-[target.thumbv7em-none-eabihf]
+[target.thumbv7em-none-eabi]
 rustflags = [
-  "-C", "linker=arm-none-eabihf-gcc",
+  "-C", "linker=arm-none-eabi-gcc",
   "-C", "link-args=-Tl0dable.ld -n -pie -fPIC",
   "-C", "relocation-model=pic",
 ]
 
 [build]
-target = "thumbv7em-none-eabihf" # Cortex-M4F and Cortex-M7F (with FPU)
+target = "thumbv7em-none-eabi" # Cortex-M4F and Cortex-M7F (with FPU)
 

l0dable/build.rs

@@ -17,8 +17,8 @@ fn main() {
 
     // Link against C code
     cc::Build::new()
-        .target("thumbv7em-none-eabihf")
-        .compiler("arm-none-eabihf-gcc")
+        .target("thumbv7em-none-eabi")
+        .compiler("arm-none-eabi-gcc")
         .define("TARGET", "MAX32665")
         .define("TARGET_UC", "MAX32665")
         .define("TARGET_LC", "max32665")