zhangxiaojingCAN

As you mentioned CPU0 and CPU1 have independent CLICs, so they have their own time. Regarding CSI data, we have hardware timestamp funtion. There're free running timers in SYSCTL, media...

We're planning to open more detailed TRM document. It may come in several weeks.

hello, Both two requests are being planned internally. We'll open source all driver code on K230 in later version SDK but can not commit a detailed date right now.

Hi, K230 chip only has MIPI DSI interface. On CanMV-K230 board, we use a MIPI-TO-HDMI chip that converts MIPI signal to HDMI video. The MIPI-TO-HDMI chip is controlled by I2C...

Linux DRM dirver was released in linux SDK https://github.com/kendryte/k230_linux_sdk

目前能确认是像64对齐下，dcache miss率显著提高，矩阵访存时addr[6]相同甚至就是同一个dcache index，一是同一index每次只能回填1路，另一路回填就得死等，另一个是伪随机替换策略导致可能刚回填的路马上被替换。建议可以试试以下2种优化： 1. matrix2转置后存储，这样k就成了最后一个下标，可以提升第二个矩阵的局部性，让cache line内的数据尽可能多得被一起用到 2. matrix2整体偏移1个cache line再存储，这样当matrix使用addr[6]=0的数据时，matrix 2更偏向于使用addr[6]=1的数据