Add bazel target for picocan

.bazelrc

@@ -3,3 +3,5 @@ common --enable_bzlmod=true
 common --incompatible_strict_action_env
 
 build --platforms=@pico-sdk//bazel/platform:rp2350
+build --@pico-sdk//bazel/config:PICO_STDIO_USB
+build --no@pico-sdk//bazel/config:PICO_STDIO_UART

src/picocan/BUILD

@@ -0,0 +1,37 @@
+load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library")
+
+cc_library(
+    name = "picocan",
+    srcs = [
+        "app.c",
+        "drv_canfdspi_api.c",
+        "drv_spi.c",
+        "led.c",
+    ],
+    hdrs = [
+        "app.h",
+        "common.h",
+        "drv_canfdspi_api.h",
+        "drv_canfdspi_defines.h",
+        "drv_canfdspi_register.h",
+        "drv_spi.h",
+        "led.h",
+    ],
+    defines = [
+        "MCP25xxFD",
+    ],
+    deps = [
+        "@pico-sdk//src/rp2_common/hardware_i2c",
+        "@pico-sdk//src/rp2_common/hardware_spi",
+        "@pico-sdk//src/rp2_common/pico_stdio_usb",
+        "@pico-sdk//src/rp2_common/pico_stdlib",
+    ],
+)
+
+cc_binary(
+    name = "picocan_main.elf",
+    srcs = ["main.c"],
+    deps = [
+        ":picocan",
+    ],
+)