CURRENT NOTES · 2026.08
Now近况
A small snapshot of what is on the bench and on the road.工作台上和路上的一张小小快照。
AT THE BENCH工作台
Low-power audio低功耗音频
Bringing up a low-power audio front-end on ARM Cortex-M33. Most of the current work is at the boundary between a codec, DMA ownership and wake-up timing.在 ARM Cortex-M33 上调一个低功耗音频前端。目前大部分工作发生在编解码器、DMA 所有权和唤醒时序的边界。
Pathcodec · DMA · ISR
Budget< 10 ms wake
Statein progress进行中
ON THE ROAD路上
Unhurried base miles不着急的基础跑
Most weeks are ordinary: easy mileage, one faster session when recovery allows, and a longer route when there is time. The explorer keeps the public traces; this page keeps only the note.大多数星期都很普通：轻松跑，恢复允许时一次快些的训练，有时间时再跑一条长一点的路线。探索器保存公开轨迹，这里只保存一句近况。
Explorer探索器run.zhengzhicheng.com
Mode模式z2 · unhurried