| // Copyright 2023 The Pigweed Authors |
| // |
| // Licensed under the Apache License, Version 2.0 (the "License"); you may not |
| // use this file except in compliance with the License. You may obtain a copy of |
| // the License at |
| // |
| // https://www.apache.org/licenses/LICENSE-2.0 |
| // |
| // Unless required by applicable law or agreed to in writing, software |
| // distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| // WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the |
| // License for the specific language governing permissions and limitations under |
| // the License. |
| |
| // This override header includes the main tokenized logging header and defines |
| // the PW_LOG macro as the tokenized logging macro. |
| #pragma once |
| |
| // This clock relies on the RP2040's native time API, which provides clock |
| // granularity to 1us. |
| #define PW_CHRONO_SYSTEM_CLOCK_PERIOD_SECONDS_NUMERATOR 1 |
| #define PW_CHRONO_SYSTEM_CLOCK_PERIOD_SECONDS_DENOMINATOR 1000000 |
| |
| #ifdef __cplusplus |
| |
| #include "pw_chrono/epoch.h" |
| |
| namespace pw::chrono::backend { |
| |
| // The Pico SDK states that the system clock is strictly time-since-boot. |
| constexpr inline Epoch kSystemClockEpoch = pw::chrono::Epoch::kTimeSinceBoot; |
| |
| // The Pico's system clock is tied to the watchdog, which is a hardware |
| // block not tied to a maskable interrupt. |
| constexpr inline bool kSystemClockNmiSafe = true; |
| |
| // The Pico's system clock is backed by a hardware block, which means it will |
| // continue happily even if interrupts are disabled. |
| constexpr inline bool kSystemClockFreeRunning = true; |
| |
| } // namespace pw::chrono::backend |
| |
| #endif // __cplusplus |
