ADSP_W046 — Sharc0Awe Frame Overload

Causes

• Excessive DSP CPU load (too many audio effects or channels active)
• Corrupted or incompatible DSP firmware/configuration
• Incorrect sample rate, buffer size, or clocking mismatch
• Power supply issues to the DSP (noisy or out-of-spec rails)
• Thermal throttling or overheating of the DSP/module
• Faulty hardware on the audio/DSP module (memory, clock, ADC/DAC)

Symptoms

• Intermittent or continuous audio dropouts, pops or stuttering
• Infotainment or audio subsystem warnings logged or visible
• Increased CPU/DSP utilization in diagnostic logs
• Reboots or resets of audio/DSP module or infotainment
• Reduced performance of functions that rely on the DSP
• Heat-related warnings or elevated module temperatures

What to check

• Retrieve full vehicle logs and DSP/awe subsystem traces around the event timestamp
• Confirm current infotainment/DSP firmware version and recent update history
• Check DSP module supply voltages and ground integrity with DMM/oscilloscope
• Measure module temperature under load and check for thermal events
• Inspect audio configuration: sample rates, buffer sizes, enabled effects/plugins
• Confirm clock sources (master clock, PLL) are present and stable

Signal parameters

• DSP frame processing time (ms) vs frame period
• DSP CPU/utilization (%) per core
• Audio sample rate (kHz) and expected buffer size (samples)
• Buffer underrun/overrun counters
• Module supply voltages (V rail values)
• Module board temperature (°C)

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