Will the software algorithm of the edge computing box cause EMC anomalies?

While the edge computing box software algorithm itself does not generate electromagnetic interference, poor software can lead to EMC test anomalies. For example, failure to disable the watchdog timer during testing can cause false resets; misconfiguration of I/O pin status can increase noise by flipping output levels; and failure to enable clock spread spectrum technology can concentrate peak energy. Countermeasures include:

1. Flashing dedicated firmware before EMC testing to disable the watchdog timer and pause unnecessary peripheral clocks;

2. Enabling spread spectrum to reduce peak values by approximately 6-8 dB;

3. Configuring key registers to avoid GPIO floating;

4. Software debouncing algorithms can resist brief false triggers caused by ESD.

Therefore, EMC rectification requires not only hardware but also software collaboration. Audiotech provides hardware protection and recommends that customers cooperate with software.