Import embassy-mcxa repo

Merge remote-tracking branch 'james-e-mcxa/james/upstream' into james/upstream-mcxa

1 files changed, 20 insertions, 0 deletions

diff --git a/examples/mcxa/build.rs b/examples/mcxa/build.rs
new file mode 100644
index 000000000..f076bba9f
--- /dev/null
+++ b/examples/mcxa/build.rs
@@ -0,0 +1,20 @@
+use std::env;
+use std::fs::File;
+use std::io::Write;
+use std::path::PathBuf;
+
+fn main() {
+    let out = &PathBuf::from(env::var_os("OUT_DIR").unwrap());
+
+    // Generate memory.x - put "FLASH" at start of RAM, RAM after "FLASH"
+    // cortex-m-rt expects FLASH for code, RAM for data/bss/stack
+    // Both are in RAM, but separated to satisfy cortex-m-rt's expectations
+    // MCXA256 has 128KB RAM total
+    File::create(out.join("memory.x"))
+        .unwrap()
+        .write_all(include_bytes!("memory.x"))
+        .unwrap();
+
+    println!("cargo:rustc-link-search={}", out.display());
+    println!("cargo:rerun-if-changed=memory.x");
+}