Clean up the build

build.sh

@@ -1,7 +1,11 @@
 #!/bin/bash
 set -e
 
-BDIR=build
+BDIR=build_firmware
+BDIR_TEST=build_test
+
+meson . "$BDIR_TEST"
+meson compile -C "$BDIR_TEST"
 
 meson . "$BDIR" --cross-file meson_cross.txt
 
@@ -10,3 +14,10 @@ for arg in "$@"; do
 done
 
 meson compile -C "$BDIR"
+
+echo
+echo "########################################################################"
+echo "Build complete. Firmware files are at:"
+echo "  - $BDIR/poly1.elf"
+echo "  - $BDIR/poly1.hex"
+echo "Test executables are in $BDIR_TEST."

meson.build

@@ -1,15 +1,28 @@
-project('poly1', 'cpp', default_options: ['optimization=2'])
+project('poly1', 'cpp', default_options: ['optimization=2', 'cpp_std=c++17'])
 
 atpack_zip = 'Microchip.AVR-Dx_DFP.2.1.152.atpack'
 dependencies = []
 
-local_headers = ['.']
+local_headers = ['.', 'etl/include']
 
 sources = [
   'main.cpp',
   'board.cpp',
 ]
 
+_includes = local_headers
+_incl_dirs = include_directories(_includes)
+
+# test binaries
+if host_machine.cpu_family() != 'avr'
+  test_midi = executable(
+    'test_midi',
+    ['test_midi.cpp'],
+    include_directories: _incl_dirs,
+  )
+  subdir_done()
+endif
+
 # debug build
 if get_option('buildtype') == 'debug'
     add_project_arguments(['-DDEBUG=1', '-ggdb3'], language: ['c', 'cpp'])
@@ -31,9 +44,6 @@ add_project_link_arguments(['-mmcu=' + host_machine.cpu()], language: ['c', 'cpp
 add_project_arguments(['-DF_CPU=' + get_option('cpu_freq').to_string()], language: ['c', 'cpp'])
 add_project_arguments(['-I' + atpack_path / 'include'], language: ['c', 'cpp'])
 
-_includes = local_headers
-_incl_dirs = include_directories(_includes)
-
 atpack = custom_target(
   'atpack',
   command: [ 'unzip', '@INPUT@', '-d', '@OUTPUT@' ],

test_midi.cpp

@@ -80,6 +80,13 @@ void print_midi(struct midi_message * m)
 
 int main(int argc, char ** argv)
 {
+	if (argc == 1)
+	{
+		printf("test_midi HEX_BYTES...\n");
+		printf("Parses MIDI data and prints out the message packets.\n");
+		return 1;
+	}
+
 	serial_test serport;
 	etl::queue<struct midi_message, 2048> queue;
 	midix m(serport, queue);