DSP Packet Synchronization with Polled Transmission Windows

The system measures the actual propagation delay between DSP and transmission device, then uses this feedback to dynamically adjust the packet production timing at the DSP. The transmission device sends delay measurements back to the DSP, which then synchronizes its packet generation to account for the measured propagation time, ensuring packets arrive exactly at polling windows.

The system pre-calculates and applies the propagation delay compensation to the packet production timing. By measuring the delay once and then adjusting future packet generation times in advance, the system ensures that packets are produced at the DSP with built-in timing offset to arrive precisely at the transmission device's polling windows.

The transmission device measures the actual arrival time of packets and calculates the propagation delay, then sends this timing information back to the DSP. This feedback loop allows the two independently clocked modules to synchronize their operations without requiring hardware synchronization, maintaining architectural flexibility while achieving precise timing alignment.

The system changes the timing parameter of packet production at the DSP based on the measured propagation delay. By dynamically adjusting the packet generation time offset according to the measured delay parameter, the system compensates for the lack of synchronized clocks and achieves precise timing alignment between separate modules.