targets: Fork the Pigweed arduino target
This will allow overriding facade implementations like pw_log_BACKEND.
Also set default baudrate to 1,000,000.
Change-Id: Ic5e5f317d9e720e52e7d46a1ec7ad9154313f768
Reviewed-on: https://pigweed-review.googlesource.com/c/gonk/+/184830
Reviewed-by: Armando Montanez <amontanez@google.com>
Commit-Queue: Anthony DiGirolamo <tonymd@google.com>
diff --git a/BUILD.gn b/BUILD.gn
index 2120617..ea9870c 100644
--- a/BUILD.gn
+++ b/BUILD.gn
@@ -35,8 +35,8 @@
"//applications/system_example(//targets/stm32f769i_disc0_stm32cube:stm32f769i_disc0_stm32cube.size_optimized)",
# Arduino targets
- "//applications/fpga_config($dir_pigweed/targets/arduino:arduino_size_optimized)",
- "//applications/spi_flash_test($dir_pigweed/targets/arduino:arduino_size_optimized)",
+ "//applications/fpga_config(//targets/stm32f730r8tx_arduino:arduino_size_optimized)",
+ "//applications/spi_flash_test(//targets/stm32f730r8tx_arduino:arduino_size_optimized)",
]
}
diff --git a/README.md b/README.md
index 508ba95..8bf1a10 100644
--- a/README.md
+++ b/README.md
@@ -68,13 +68,13 @@
1. Connect over serial.
```sh
- python -m serial.tools.miniterm --raw /dev/ttyGonk 115200
+ python -m serial.tools.miniterm --raw /dev/ttyGonk 1000000
```
You should see output matching:
```
- --- Miniterm on /dev/ttyGonk 115200,8,N,1 ---
+ --- Miniterm on /dev/ttyGonk 1000000,8,N,1 ---
--- Quit: Ctrl+] | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
INF Device id: 1f 84 1
INF Device id: 1f 84 1
diff --git a/targets/stm32f730r8tx_arduino/BUILD.gn b/targets/stm32f730r8tx_arduino/BUILD.gn
new file mode 100644
index 0000000..2e33b31
--- /dev/null
+++ b/targets/stm32f730r8tx_arduino/BUILD.gn
@@ -0,0 +1,105 @@
+# Copyright 2023 The Pigweed Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+import("//build_overrides/pigweed.gni")
+
+import("$dir_pw_arduino_build/arduino.gni")
+import("$dir_pw_build/target_types.gni")
+import("$dir_pw_toolchain/generate_toolchain.gni")
+
+if (pw_arduino_build_CORE_PATH != "") {
+ import("target_toolchains.gni")
+
+ generate_toolchains("target_toolchains") {
+ toolchains = pw_target_toolchain_arduino_list
+ }
+
+ if (current_toolchain ==
+ "//targets/stm32f730r8tx_arduino:arduino_size_optimized") {
+ config("arduino_build") {
+ exec_script(arduino_builder_script,
+ filter_exclude(arduino_run_command_args,
+ [ "--save-config" ]) + [ "--run-prebuilds" ],
+ "string")
+
+ _exclude_flags = [ "-std=gnu++14" ]
+
+ _cflags = exec_script(arduino_builder_script,
+ arduino_show_command_args + [ "--c-flags" ],
+ "list lines")
+ cflags = filter_exclude(_cflags, _exclude_flags)
+
+ asmflags = exec_script(arduino_builder_script,
+ arduino_show_command_args + [ "--s-only-flags" ],
+ "list lines")
+
+ _cflags_cc =
+ exec_script(arduino_builder_script,
+ arduino_show_command_args + [ "--cpp-only-flags" ],
+ "list lines")
+ cflags_cc = filter_exclude(_cflags_cc, _exclude_flags)
+
+ _ldflags = exec_script(arduino_builder_script,
+ arduino_show_command_args + [ "--ld-flags" ],
+ "list lines")
+ ldflags =
+ filter_exclude(_ldflags,
+ [
+ # Remove arguments ending in 'core.a', for example:
+ # C:/Users/username/pigweed/out/core.a
+ "*core.a\b",
+
+ # Remove .elf output file, for example:
+ # -o C:/Users/username/pigweed/out/pigweed.elf
+ "\b-o\b",
+ "*.elf\b",
+
+ # Remove the Arduino {object_files} variable
+ "{object_files}",
+ ])
+
+ # Teensy4 core recipe uses: '-larm_cortexM7lfsp_math -lm -lstdc++'
+ libs = filter_exclude(
+ exec_script(arduino_builder_script,
+ arduino_show_command_args + [ "--ld-lib-names" ],
+ "list lines"),
+ [
+ # Exclude stdc++ and precompiled math libraries which causes
+ # linking errors for teensy cores.
+ "\bstdc++\b",
+ "\barm_cortexM0l_math\b",
+ "\barm_cortexM4lf_math\b",
+ "\barm_cortexM4l_math\b",
+ "\barm_cortexM7lfsp_math\b",
+ ])
+ }
+
+ pw_source_set("pre_init") {
+ sources = [ "init.cc" ]
+ public_deps = [
+ "$dir_pw_sys_io_arduino",
+ "$dir_pw_third_party/arduino:arduino_core_sources",
+ ]
+ deps = [
+ "$dir_pw_arduino_build:arduino_init.facade",
+ "$dir_pw_preprocessor",
+ ]
+ }
+ }
+} else {
+ config("arduino_build") {
+ }
+ group("pre_init") {
+ }
+}
diff --git a/targets/stm32f730r8tx_arduino/arduino_executable.gni b/targets/stm32f730r8tx_arduino/arduino_executable.gni
new file mode 100644
index 0000000..2013bf0
--- /dev/null
+++ b/targets/stm32f730r8tx_arduino/arduino_executable.gni
@@ -0,0 +1,27 @@
+# Copyright 2023 The Pigweed Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+import("//build_overrides/pigweed.gni")
+import("$dir_pw_malloc/backend.gni")
+
+# Executable wrapper that includes some baremetal startup code.
+template("arduino_executable") {
+ target("executable", target_name) {
+ forward_variables_from(invoker, "*")
+ if (!defined(deps)) {
+ deps = []
+ }
+ deps += [ "$dir_pw_arduino_build:arduino_main_wrapper" ]
+ }
+}
diff --git a/targets/stm32f730r8tx_arduino/init.cc b/targets/stm32f730r8tx_arduino/init.cc
new file mode 100644
index 0000000..437ee3d
--- /dev/null
+++ b/targets/stm32f730r8tx_arduino/init.cc
@@ -0,0 +1,21 @@
+// Copyright 2023 The Pigweed Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License"); you may not
+// use this file except in compliance with the License. You may obtain a copy of
+// the License at
+//
+// https://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+// License for the specific language governing permissions and limitations under
+// the License.
+
+#include <Arduino.h>
+
+#include "pw_arduino_build/init.h"
+
+// Arduino target specific init. pw_sys_io_arduino_Init() normally calls
+// Serial.begin(115200). Instead, we init serial to a higher baudrate here.
+extern "C" void pw_arduino_Init() { Serial.begin(1000000); }
diff --git a/targets/stm32f730r8tx_arduino/target_toolchains.gni b/targets/stm32f730r8tx_arduino/target_toolchains.gni
new file mode 100644
index 0000000..57528f2
--- /dev/null
+++ b/targets/stm32f730r8tx_arduino/target_toolchains.gni
@@ -0,0 +1,127 @@
+# Copyright 2023 The Pigweed Authors
+#
+# Licensed under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License. You may obtain a copy of
+# the License at
+#
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
+# License for the specific language governing permissions and limitations under
+# the License.
+
+import("//build_overrides/pigweed.gni")
+
+import("$dir_pw_build/defaults.gni")
+import("$dir_pw_sys_io/backend.gni")
+import("$dir_pw_toolchain/arm_gcc/toolchains.gni")
+
+declare_args() {
+ # Enable the pw_target_runner for on-device testing.
+ pw_arduino_use_test_server = false
+}
+_target_config = {
+ # Use the logging main.
+ pw_unit_test_MAIN = "$dir_pw_unit_test:simple_printing_main"
+
+ # Configuration options for Pigweed executable targets.
+ pw_build_EXECUTABLE_TARGET_TYPE = "arduino_executable"
+
+ pw_build_EXECUTABLE_TARGET_TYPE_FILE =
+ get_path_info("arduino_executable.gni", "abspath")
+
+ # Path to the bloaty config file for the output binaries.
+ pw_bloat_BLOATY_CONFIG = "$dir_pw_boot_cortex_m/bloaty_config.bloaty"
+
+ if (pw_arduino_use_test_server) {
+ _test_runner_script =
+ "$dir_pw_arduino_build/py/pw_arduino_build/unit_test_client.py"
+ pw_unit_test_AUTOMATIC_RUNNER =
+ get_path_info(_test_runner_script, "abspath")
+ }
+
+ # Facade backends
+ pw_assert_BACKEND = dir_pw_assert_basic
+ pw_log_BACKEND = dir_pw_log_basic
+ pw_sync_INTERRUPT_SPIN_LOCK_BACKEND =
+ "$dir_pw_sync_baremetal:interrupt_spin_lock"
+ pw_sync_MUTEX_BACKEND = "$dir_pw_sync_baremetal:mutex"
+ pw_rpc_CONFIG = "$dir_pw_rpc:disable_global_mutex"
+ pw_sys_io_BACKEND = dir_pw_sys_io_arduino
+ pw_rpc_system_server_BACKEND = "$dir_pw_hdlc:hdlc_sys_io_system_server"
+ pw_arduino_build_INIT_BACKEND = "//targets/stm32f730r8tx_arduino:pre_init"
+
+ pw_build_LINK_DEPS = [
+ "$dir_pw_assert:impl",
+ "$dir_pw_log:impl",
+ ]
+
+ current_cpu = "arm"
+ current_os = ""
+}
+
+_toolchain_properties = {
+ final_binary_extension = ".elf"
+}
+
+_target_default_configs = pigweed_default_configs + [
+ "$dir_pw_toolchain/arm_gcc:enable_float_printf",
+ "//targets/stm32f730r8tx_arduino:arduino_build",
+ ]
+
+pw_target_toolchain_arduino = {
+ _excluded_members = [
+ "defaults",
+ "name",
+ ]
+
+ debug = {
+ name = "arduino_debug"
+ _toolchain_base = pw_toolchain_arm_gcc.cortex_m4f_debug
+ forward_variables_from(_toolchain_base, "*", _excluded_members)
+ forward_variables_from(_toolchain_properties, "*")
+ defaults = {
+ forward_variables_from(_toolchain_base.defaults, "*")
+ forward_variables_from(_target_config, "*")
+ default_configs = []
+ default_configs = _target_default_configs
+ }
+ }
+
+ speed_optimized = {
+ name = "arduino_speed_optimized"
+ _toolchain_base = pw_toolchain_arm_gcc.cortex_m4f_speed_optimized
+ forward_variables_from(_toolchain_base, "*", _excluded_members)
+ forward_variables_from(_toolchain_properties, "*")
+ defaults = {
+ forward_variables_from(_toolchain_base.defaults, "*")
+ forward_variables_from(_target_config, "*")
+ default_configs = []
+ default_configs = _target_default_configs
+ }
+ }
+
+ size_optimized = {
+ name = "arduino_size_optimized"
+ _toolchain_base = pw_toolchain_arm_gcc.cortex_m4f_size_optimized
+ forward_variables_from(_toolchain_base, "*", _excluded_members)
+ forward_variables_from(_toolchain_properties, "*")
+ defaults = {
+ forward_variables_from(_toolchain_base.defaults, "*")
+ forward_variables_from(_target_config, "*")
+ default_configs = []
+ default_configs = _target_default_configs
+ }
+ }
+}
+
+# This list just contains the members of the above scope for convenience to make
+# it trivial to generate all the toolchains in this file via a
+# `generate_toolchains` target.
+pw_target_toolchain_arduino_list = [
+ pw_target_toolchain_arduino.debug,
+ pw_target_toolchain_arduino.speed_optimized,
+ pw_target_toolchain_arduino.size_optimized,
+]
