Added embedded-can to esp32c3 twai example.

esp32c3-hal/Cargo.toml

@@ -29,6 +29,7 @@ cfg-if           = "1.0"
 embedded-hal     = { version = "0.2.7", features = ["unproven"] }
 embedded-hal-1   = { version = "=1.0.0-alpha.9", optional = true, package = "embedded-hal" }
 embedded-hal-nb  = { version = "=1.0.0-alpha.1", optional = true }
+embedded-can     = { version = "0.4.1", optional = true }
 esp-hal-common   = { version = "0.2.0",  features = ["esp32c3"], path = "../esp-hal-common" }
 r0               = "1.0.0"
 riscv            = "0.9.0"
@@ -50,7 +51,7 @@ static_cell        = "1.0.0"
 default           = ["rt", "vectored"]
 mcu-boot          = []
 direct-boot       = []
-eh1               = ["esp-hal-common/eh1", "dep:embedded-hal-1", "dep:embedded-hal-nb"]
+eh1               = ["esp-hal-common/eh1", "dep:embedded-hal-1", "dep:embedded-hal-nb", "dep:embedded-can"]
 rt                = ["riscv-rt"]
 smartled          = ["esp-hal-common/smartled"]
 ufmt              = ["esp-hal-common/ufmt"]

esp32c3-hal/examples/twai.rs

@@ -7,7 +7,17 @@ use esp32c3_hal::{
     UsbSerialJtag,
 };
 
-use embedded_hal::can::{Can, Frame, Id, StandardId};
+// Run this example with the eh1 feature enabled to use embedded-can instead of
+// embedded-hal-0.2.7. embedded-can was split off from embedded-hal before it's upgrade to 1.0.0.
+// cargo run --example twai --features eh1 --release
+#[cfg(feature = "eh1")]
+use embedded_can::{nb::Can, Frame, Id};
+
+// Run this example without the eh1 flag to use the embedded-hal 0.2.7 CAN traits.
+// cargo run --example twai --release
+#[cfg(not(feature = "eh1"))]
+use embedded_hal::can::{Can, Frame, Id};
+
 use esp_backtrace as _;
 use nb::block;
 use riscv_rt::entry;