diff --git a/ports/raspberrypi/boards/adafruit_feather_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/adafruit_feather_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..a41131dd22b7e
--- /dev/null
+++ b/ports/raspberrypi/boards/adafruit_feather_rp2040/pico-sdk-configboard.h
@@ -0,0 +1,4 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
+
+// Allow extra time for xosc to start.
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
diff --git a/ports/raspberrypi/boards/adafruit_itsybitsy_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/adafruit_itsybitsy_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..a41131dd22b7e
--- /dev/null
+++ b/ports/raspberrypi/boards/adafruit_itsybitsy_rp2040/pico-sdk-configboard.h
@@ -0,0 +1,4 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
+
+// Allow extra time for xosc to start.
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
diff --git a/ports/raspberrypi/boards/adafruit_macropad_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/adafruit_macropad_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..a41131dd22b7e
--- /dev/null
+++ b/ports/raspberrypi/boards/adafruit_macropad_rp2040/pico-sdk-configboard.h
@@ -0,0 +1,4 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
+
+// Allow extra time for xosc to start.
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
diff --git a/ports/raspberrypi/boards/adafruit_qt2040_trinkey/pico-sdk-configboard.h b/ports/raspberrypi/boards/adafruit_qt2040_trinkey/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..a41131dd22b7e
--- /dev/null
+++ b/ports/raspberrypi/boards/adafruit_qt2040_trinkey/pico-sdk-configboard.h
@@ -0,0 +1,4 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
+
+// Allow extra time for xosc to start.
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
diff --git a/ports/raspberrypi/boards/adafruit_qtpy_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/adafruit_qtpy_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..a41131dd22b7e
--- /dev/null
+++ b/ports/raspberrypi/boards/adafruit_qtpy_rp2040/pico-sdk-configboard.h
@@ -0,0 +1,4 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
+
+// Allow extra time for xosc to start.
+#define PICO_XOSC_STARTUP_DELAY_MULTIPLIER 64
diff --git a/ports/raspberrypi/boards/arduino_nano_rp2040_connect/pico-sdk-configboard.h b/ports/raspberrypi/boards/arduino_nano_rp2040_connect/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/arduino_nano_rp2040_connect/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/cytron_maker_pi_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/cytron_maker_pi_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/cytron_maker_pi_rp2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/pimoroni_keybow2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/pimoroni_keybow2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/pimoroni_keybow2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/pimoroni_pga2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/pimoroni_pga2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/pimoroni_pga2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/pimoroni_picolipo_16mb/pico-sdk-configboard.h b/ports/raspberrypi/boards/pimoroni_picolipo_16mb/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/pimoroni_picolipo_16mb/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/pimoroni_picolipo_4mb/pico-sdk-configboard.h b/ports/raspberrypi/boards/pimoroni_picolipo_4mb/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/pimoroni_picolipo_4mb/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/pimoroni_picosystem/pico-sdk-configboard.h b/ports/raspberrypi/boards/pimoroni_picosystem/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/pimoroni_picosystem/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/pimoroni_tiny2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/pimoroni_tiny2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/pimoroni_tiny2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/raspberry_pi_pico/pico-sdk-configboard.h b/ports/raspberrypi/boards/raspberry_pi_pico/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/raspberry_pi_pico/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/sparkfun_micromod_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/sparkfun_micromod_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/sparkfun_micromod_rp2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/sparkfun_pro_micro_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/sparkfun_pro_micro_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/sparkfun_pro_micro_rp2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/boards/sparkfun_thing_plus_rp2040/pico-sdk-configboard.h b/ports/raspberrypi/boards/sparkfun_thing_plus_rp2040/pico-sdk-configboard.h
new file mode 100644
index 0000000000000..36da55d457197
--- /dev/null
+++ b/ports/raspberrypi/boards/sparkfun_thing_plus_rp2040/pico-sdk-configboard.h
@@ -0,0 +1 @@
+// Put board-specific pico-sdk definitions here. This file must exist.
diff --git a/ports/raspberrypi/sdk_config/pico/config_autogen.h b/ports/raspberrypi/sdk_config/pico/config_autogen.h
index a8ff324e1cff2..a29ccb458a1ad 100644
--- a/ports/raspberrypi/sdk_config/pico/config_autogen.h
+++ b/ports/raspberrypi/sdk_config/pico/config_autogen.h
@@ -1,5 +1,7 @@
 #pragma once
 
+#include "pico-sdk-configboard.h"
+
 // alphabetized
 #define LIB_PICO_BINARY_INFO (0)
 #define LIB_PICO_PRINTF_NONE (0)