1 files changed, 53 insertions, 0 deletions
diff --git a/board/build.rs b/board/build.rs
new file mode 100644
index 0000000..9ee64e8
--- /dev/null
+++ b/board/build.rs
@@ -0,0 +1,53 @@
+use std::{collections::HashSet, env};
+
+fn extract_features() -> HashSet<String> {
+    env::vars()
+        .map(|(k, _)| k)
+        .flat_map(|feat| feat.strip_prefix("CARGO_FEATURE_").map(str::to_lowercase))
+        .collect()
+}
+
+/// Configures the runtime for a variety of boards.
+///
+/// Note that some automated tests may check these runtimes. Feel free to change
+/// values and observe how they might affect the tests.
+fn main() {
+    let features = extract_features();
+    for feature in features {
+        match feature.as_str() {
+            "teensy4" => {
+                imxrt_rt::RuntimeBuilder::from_flexspi(imxrt_rt::Family::Imxrt1060, 1984 * 1024)
+                    .flexram_banks(imxrt_rt::FlexRamBanks {
+                        ocram: 0,
+                        dtcm: 12,
+                        itcm: 4,
+                    })
+                    .heap_size(1024)
+                    .text(imxrt_rt::Memory::Flash)
+                    .rodata(imxrt_rt::Memory::Dtcm)
+                    .data(imxrt_rt::Memory::Dtcm)
+                    .bss(imxrt_rt::Memory::Dtcm)
+                    .uninit(imxrt_rt::Memory::Dtcm)
+                    .build()
+                    .unwrap()
+            }
+            "imxrt1010evk" => imxrt_rt::RuntimeBuilder::from_flexspi(
+                imxrt_rt::Family::Imxrt1010,
+                16 * 1024 * 1024,
+            )
+            .heap_size(1024)
+            .rodata(imxrt_rt::Memory::Flash)
+            .build()
+            .unwrap(),
+            "imxrt1170evk_cm7" => imxrt_rt::RuntimeBuilder::from_flexspi(
+                imxrt_rt::Family::Imxrt1170,
+                16 * 1024 * 1024,
+            )
+            .rodata(imxrt_rt::Memory::Dtcm)
+            .build()
+            .unwrap(),
+            _ => continue,
+        }
+        break;
+    }
+}