System API

Overview

The System API in MatrixOS provides core system functions including timing, application management, device control, and system utilities. The System API is available as MatrixOS.SYS and is imported by default.

The Python System API is implemented in Applications/Python/PikaPython/MatrixOS_SYS.py with type hints in Applications/Python/PikaPython/_MatrixOS_SYS.pyi.

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Version Information

MatrixOS.SYS.GetVersion

def GetVersion() -> tuple

Returns the current MatrixOS version as a tuple of major, minor, and patch version numbers.

Returns:

• tuple: A tuple containing (major, minor, patch) version numbers

Example:

version = MatrixOS.SYS.GetVersion()
major, minor, patch = version
print(f"MatrixOS Version: {major}.{minor}.{patch}")

# Example: Check if version is at least 3.0.0
if version >= (3, 0, 0):
    print("Version 3.0.0 or newer detected")

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Device Control

MatrixOS.SYS.Reboot

def Reboot() -> None

Reboots the MatrixOS device. The device will restart and boot normally.

Example:

MatrixOS.SYS.Reboot()  # Device will restart

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MatrixOS.SYS.Bootloader

def Bootloader() -> None

Reboots the device into bootloader mode for firmware updates.

Example:

MatrixOS.SYS.Bootloader()  # Enter bootloader for firmware update

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Timing Functions

MatrixOS.SYS.DelayMs

def DelayMs(ms: int) -> None

Delays execution for the specified number of milliseconds.

Parameters:

• ms (int): Delay duration in milliseconds

Example:

MatrixOS.SYS.DelayMs(1000)  # Wait 1 second
print("One second has passed")

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MatrixOS.SYS.Millis

def Millis() -> int

Returns the number of milliseconds since the device started.

Returns:

• int: Milliseconds since boot

Example:

start_time = MatrixOS.SYS.Millis()
# ... do some work ...
elapsed = MatrixOS.SYS.Millis() - start_time
print(f"Operation took {elapsed} ms")

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MatrixOS.SYS.Micros

def Micros() -> int

Returns the number of microseconds since the device started.

Returns:

• int: Microseconds since boot

Example:

start_time = MatrixOS.SYS.Micros()
# ... precise timing operation ...
elapsed = MatrixOS.SYS.Micros() - start_time
print(f"Precise timing: {elapsed} microseconds")

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Application Management

MatrixOS.SYS.OpenSetting

def OpenSetting() -> None

Opens the system settings application.

Example:

MatrixOS.SYS.OpenSetting()  # Launch settings app

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MatrixOS.SYS.ExecuteAPP

def ExecuteAPP(author: str, app_name: str, args: list = []) -> None

Launches an application by author and name with optional arguments.

Parameters:

• author (str): Application author name
• app_name (str): Application name
• args (list, optional): Arguments to pass to the application (defaults to empty list)

Example:

# Launch a specific application
MatrixOS.SYS.ExecuteAPP("203 Systems", "Performance")

# Launch with arguments
MatrixOS.SYS.ExecuteAPP("MyAuthor", "MyApp", ["demo_mode"])

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MatrixOS.SYS.ExecuteAPPByID

def ExecuteAPPByID(app_id: int, args: list = []) -> None

Launches an application by its ID with optional arguments.

Parameters:

• app_id (int): Application ID number
• args (list, optional): Arguments to pass to the application (defaults to empty list)

Example:

# Launch application ID 0xDEADBEED 
MatrixOS.SYS.ExecuteAPPByID(0xDEADBEED)

# Launch with arguments
MatrixOS.SYS.ExecuteAPPByID(0xDEADBEED, ["parameter1", "parameter2"])

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Timing and Performance Examples

Precise Timing Loop

def precise_timing_demo():
    """Demonstrate precise timing with microsecond accuracy"""
    interval_us = 10000  # 10ms in microseconds
    last_time = MatrixOS.SYS.Micros()

    for i in range(100):
        current_time = MatrixOS.SYS.Micros()

        # Wait for precise interval
        while (current_time - last_time) < interval_us:
            current_time = MatrixOS.SYS.Micros()

        print(f"Tick {i}: {current_time - last_time} us")
        last_time = current_time

precise_timing_demo()

Performance Measurement

def measure_performance(function, iterations=1000):
    """Measure function execution time"""
    start_time = MatrixOS.SYS.Micros()

    for i in range(iterations):
        function()

    end_time = MatrixOS.SYS.Micros()
    total_time = end_time - start_time
    avg_time = total_time / iterations

    print(f"Total time: {total_time} us")
    print(f"Average time per call: {avg_time} us")
    return avg_time

# Example usage
def test_function():
    # Some operation to measure
    pass

measure_performance(test_function)

Timeout Implementation

def wait_with_timeout(condition_func, timeout_ms):
    """Wait for a condition with timeout"""
    start_time = MatrixOS.SYS.Millis()

    while not condition_func():
        if (MatrixOS.SYS.Millis() - start_time) > timeout_ms:
            return False  # Timeout
        MatrixOS.SYS.DelayMs(1)  # Small delay to prevent busy waiting

    return True  # Condition met

# Example usage
def is_key_pressed():
    # Check some condition
    return False

if wait_with_timeout(is_key_pressed, 5000):
    print("Key was pressed within 5 seconds")
else:
    print("Timeout: No key press detected")

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System Monitoring

def system_monitor():
    """Monitor system uptime and performance"""
    start_time = MatrixOS.SYS.Millis()

    while True:
        current_time = MatrixOS.SYS.Millis()
        uptime_ms = current_time
        uptime_seconds = uptime_ms // 1000
        uptime_minutes = uptime_seconds // 60
        uptime_hours = uptime_minutes // 60

        print(f"System Uptime: {uptime_hours:02d}:{uptime_minutes%60:02d}:{uptime_seconds%60:02d}")

        MatrixOS.SYS.DelayMs(1000)  # Update every second

# Run monitor for a short time
system_monitor()