Do It Faster: How We Supercharged Linux To Work With Blazing Fast ADCs for IIO
summary
Kernel changes add SPI offload and a new PWM waveform mode to upstream Linux (merged around 6.13 and 6.15–6.16), enabling support for ~121 ADI parts and about 50 devices via five driver families and reaching mega‑samples per second with low jitter. Development uses Zboard, ADLM2000 (M2K) with Scopy, Siglent scope, Saleae logic, Vivado and labgrid. PWM offset support and rounding logic land in the core, drivers prototype in FPGA AXI blocks, and merged patches demonstrate the approach works in mainline.
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chapters (8)
- 0:00Project introduction
- 1:44Bay Libra and speaker
- 3:30Hardware setup
- 8:24SPI offloading
- 10:30PWM overloading
- 17:55AD765x ADC driver
- 21:04Team reflections
- 25:36Q&A
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