Add build-time option for Pico to wait for a USB connection

Pico SDK doesn't have idf.py monitor which allows to be connected from the boot. Instead, it has an option that waits for an USB serial connection before starting. Add a built-time setting to enable this feature. Signed-off-by: Paul Guyot <[email protected]>
atomvm · Aug 25, 2023 · 64b116c · 64b116c
1 parent cea1601
commit 64b116c
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diff --git a/src/platforms/rp2040/CMakeLists.txt b/src/platforms/rp2040/CMakeLists.txt
@@ -48,7 +48,7 @@ set(CMAKE_TRY_COMPILE_TARGET_TYPE EXECUTABLE)
 option(AVM_DISABLE_SMP "Disable SMP support." OFF)
 option(AVM_USE_32BIT_FLOAT "Use 32 bit floats." OFF)
 option(AVM_VERBOSE_ABORT "Print module and line number on VM abort" OFF)
-
+option(AVM_WAIT_FOR_USB_CONNECT "Wait for USB connection before starting" OFF)
 option(AVM_REBOOT_ON_NOT_OK "Reboot Pico if result is not ok" OFF)
 
 set(

diff --git a/src/platforms/rp2040/src/CMakeLists.txt b/src/platforms/rp2040/src/CMakeLists.txt
@@ -41,6 +41,10 @@ if (AVM_REBOOT_ON_NOT_OK)
     target_compile_definitions(AtomVM PRIVATE CONFIG_REBOOT_ON_NOT_OK)
 endif()
 
+if (AVM_WAIT_FOR_USB_CONNECT)
+    target_compile_definitions(AtomVM PRIVATE PICO_STDIO_USB_CONNECT_WAIT_TIMEOUT_MS=-1)
+endif()
+
 set(
     PLATFORM_LIB_SUFFIX
     ${CMAKE_SYSTEM_NAME}-${CMAKE_SYSTEM_PROCESSOR}