Commit message (Collapse) | Author | Age | |
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* | Revert back to 3 stage CIC filter | Jon Nordby | 2025-08-12 |
| | | | | From 2843105739db84851c3e9d2436c2c3c2c0563abf | ||
* | pdm: Using 255 seems pretty nice | Jon Nordby | 2025-08-09 |
| | | | | Lower values have much larger DC offsets on output | ||
* | pdm: Try to use shifts instead of mul | Jon Nordby | 2025-08-08 |
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* | pdm: Try to bring back alpha setting for DC removal | Jon Nordby | 2025-08-08 |
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* | pdm: Attempt at more efficient DC rejecter | Jon Nordby | 2025-08-08 |
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* | pdm: Leaky integrator for DC blocking seems better | Jon Nordby | 2025-08-08 |
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* | pdm: Try switch to 2 stage CIC | Jon Nordby | 2025-08-08 |
| | | | | Still seeing odd spikes on output | ||
* | pdm: Try more HPF fixes | Jon Nordby | 2025-08-08 |
| | | | | Still not right. Seeing periodic steps on output, that settle to 0, repeatedly | ||
* | pdm: Try add high pass filter for DC blocking/removal | Jon Nordby | 2025-08-08 |
| | | | | Does not work right... | ||
* | cic3_pdm: Silence a warning from Verilator | Jon Nordby | 2025-05-14 |
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* | bindings: Actually build cic3_pdm code | Jon Nordby | 2025-05-14 |
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* | Remove unused pdm_out | Jon Nordby | 2025-05-02 |
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* | cocotb: Have two tests, share core | Jon Nordby | 2025-05-02 |
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* | cocotb: Specify some arguments | Jon Nordby | 2025-05-02 |
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* | cocotb: Test and fix 1khz sine | Jon Nordby | 2025-05-02 |
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* | cocotb: Run multiple PCM samples | Jon Nordby | 2025-04-26 |
| | | | | 1000 samples is quite slow, takes many seconds | ||
* | cocotb: Try to test a CIC filter | Jon Nordby | 2025-04-26 |
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* | cocotb: Switch to plain Verilog, from SystemVerilog | Jon Nordby | 2025-04-26 |
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* | cocotb: Try to run quickstart | Jon Nordby | 2025-04-26 |
Passes both using SIM=verilator and SIM=icarus |