Use the c6 as the default for the imac target

build/native/cargo_driver/chip.rs

@@ -43,8 +43,10 @@ impl Chip {
             "xtensa-esp32-espidf" => &[Chip::ESP32],
             "xtensa-esp32s2-espidf" => &[Chip::ESP32S2],
             "xtensa-esp32s3-espidf" => &[Chip::ESP32S3],
-            "riscv32imc-esp-espidf" => &[Chip::ESP32C3, Chip::ESP32C2], // Keep C3 as the first in the list, so it is picked up by default; as C2 does not work for older ESP IDFs
-            "riscv32imac-esp-espidf" => &[Chip::ESP32H2, Chip::ESP32C5, Chip::ESP32C6],
+            // Keep C3 as the first in the list, so it is picked up by default; as C2 does not work for older ESP IDFs
+            "riscv32imc-esp-espidf" => &[Chip::ESP32C3, Chip::ESP32C2],
+            // Keep C6 at the first in the list, so it is picked up by default; as H2 does not have a Wifi
+            "riscv32imac-esp-espidf" => &[Chip::ESP32C6, Chip::ESP32C5, Chip::ESP32H2],
             "riscv32imafc-esp-espidf" => &[Chip::ESP32P4],
             _ => bail!("Unsupported target '{}'", rust_target_triple),
         };