initial commit

2026-09-25 10:48:51 +10:00
commit b90beea8ae
1020 changed files with 131665 additions and 0 deletions
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+#if defined(ARDUINO_ARCH_RP2040)
+
+#include "WatchdogRP2040.h"
+
+/**********************************************************************************************/
+/*!
+    @brief  Initializes the RP2040's hardware watchdog timer.
+    @param    maxPeriodMS
+              Timeout period of WDT in milliseconds
+    @return The actual period (in milliseconds) before a watchdog timer
+            reset is returned, 0 otherwise.
+*/
+/**********************************************************************************************/
+int WatchdogRP2040::enable(int maxPeriodMS) {
+  if (maxPeriodMS < 0)
+    return 0;
+
+  // Enables the RP2040's hardware WDT with maxPeriodMS delay
+  // (wdt should be updated every maxPeriodMS ms) and
+  // enables pausing the WDT on debugging when stepping thru
+  watchdog_enable(maxPeriodMS, 1);
+
+  _wdto = maxPeriodMS;
+  return maxPeriodMS;
+}
+
+/**************************************************************************/
+/*!
+    @brief  Reload the watchdog counter with the amount of time set in
+            enable().
+*/
+/**************************************************************************/
+void WatchdogRP2040::reset() { watchdog_update(); }
+
+/**************************************************************************/
+/*!
+    @brief  Once enabled, the RP2040's Watchdog Timer can NOT be disabled.
+*/
+/**************************************************************************/
+void WatchdogRP2040::disable() {}
+
+/**************************************************************************/
+/*!
+    @brief  Configures the RP2040 to enter a lower power (WFE) sleep
+            for a period of time.
+    @param    maxPeriodMS
+              Time to sleep the RP2040, in millis.
+    @return The actual period (in milliseconds) that the hardware was
+            asleep will be returned. Otherwise, 0 will be returned if the
+            hardware could not enter the low-power mode.
+*/
+/**************************************************************************/
+int WatchdogRP2040::sleep(int maxPeriodMS) {
+  if (maxPeriodMS < 0)
+    return 0;
+
+  // perform a lower power (WFE) sleep (pico-core calls sleep_ms(sleepTime))
+  sleep_ms(maxPeriodMS);
+
+  return maxPeriodMS;
+}
+
+#endif // ARDUINO_ARCH_RP2040