diff --git a/ports/nrf/drivers/wdt.c b/ports/nrf/drivers/wdt.c
index 73ce51647..f04bfee69 100644
--- a/ports/nrf/drivers/wdt.c
+++ b/ports/nrf/drivers/wdt.c
@@ -28,8 +28,11 @@
 
 #if MICROPY_PY_MACHINE_WDT
 
+#include "wdt.h"
 #include "nrf_wdt.h"
 
+bool wdt_starve;
+
 #if MICROPY_HW_HAS_WDT_BUTTON
 static void button_init(void)
 {
@@ -85,11 +88,17 @@ void wdt_feed(bool isr)
      * implementing a (reasonably robust) long-press reset button.
      */
 #if MICROPY_HW_HAS_WDT_BUTTON
-    if (!button_pressed())
+    if (button_pressed())
+        return;
 #else
-    if (!isr)
+    if (isr)
+	return;
 #endif
-        nrf_wdt_reload_request_set(0);
+
+    if (wdt_starve)
+	return;
+
+    nrf_wdt_reload_request_set(0);
 }
 
 #endif // MICROPY_PY_MACHINE_WDT
diff --git a/ports/nrf/drivers/wdt.h b/ports/nrf/drivers/wdt.h
index 094df0854..ac397b18e 100644
--- a/ports/nrf/drivers/wdt.h
+++ b/ports/nrf/drivers/wdt.h
@@ -25,7 +25,12 @@
 #ifndef __MICROPY_INCLUDED_LIB_WDT_H__
 #define __MICROPY_INCLUDED_LIB_WDT_H__
 
+#include <stdbool.h>
+
+extern bool wdt_starve;
+
 void wdt_init(void);
 void wdt_feed(bool isr);
 
+
 #endif // __MICROPY_INCLUDED_LIB_WDT_H__
diff --git a/ports/nrf/modules/machine/modmachine.c b/ports/nrf/modules/machine/modmachine.c
index 0b0c4887d..ad910b372 100644
--- a/ports/nrf/modules/machine/modmachine.c
+++ b/ports/nrf/modules/machine/modmachine.c
@@ -54,6 +54,9 @@
 #if MICROPY_PY_MACHINE_RTCOUNTER
 #include "rtcounter.h"
 #endif
+#if MICROPY_PY_MACHINE_WDT
+#include "wdt.h"
+#endif
 
 #define PYB_RESET_HARD      (0)
 #define PYB_RESET_WDT       (1)
@@ -163,6 +166,14 @@ STATIC mp_obj_t machine_enter_serial_dfu(void) {
 MP_DEFINE_CONST_FUN_OBJ_0(machine_enter_serial_dfu_obj, machine_enter_serial_dfu);
 #endif
 
+#if MICROPY_PY_MACHINE_WDT
+STATIC mp_obj_t machine_starve_wdt(void) {
+    wdt_starve = true;
+    return mp_const_none;
+}
+MP_DEFINE_CONST_FUN_OBJ_0(machine_starve_wdt_obj, machine_starve_wdt);
+#endif
+
 STATIC mp_obj_t machine_soft_reset(void) {
     pyexec_system_exit = PYEXEC_FORCED_EXIT;
     nlr_raise(mp_obj_new_exception(&mp_type_SystemExit));
@@ -214,6 +225,9 @@ STATIC const mp_rom_map_elem_t machine_module_globals_table[] = {
 #if MICROPY_PY_MACHINE_DFU_BOOTLOADER
     { MP_ROM_QSTR(MP_QSTR_enter_ota_dfu),      MP_ROM_PTR(&machine_enter_ota_dfu_obj) },
     { MP_ROM_QSTR(MP_QSTR_enter_serial_dfu),   MP_ROM_PTR(&machine_enter_serial_dfu_obj) },
+#endif
+#if MICROPY_PY_MACHINE_WDT
+    { MP_ROM_QSTR(MP_QSTR_starve_wdt),         MP_ROM_PTR(&machine_starve_wdt_obj) },
 #endif
     { MP_ROM_QSTR(MP_QSTR_soft_reset),         MP_ROM_PTR(&machine_soft_reset_obj) },
     { MP_ROM_QSTR(MP_QSTR_enable_irq),         MP_ROM_PTR(&machine_enable_irq_obj) },