sudo busybox devmem 0x0243d008 32 0x400
sudo busybox devmem 0x0243d018 32 0x450
sudo busybox devmem 0x0243d028 32 0x400
sudo busybox devmem 0x0243d040 32 0x400
After short MOSI and MISO of spi1, spi1 seem work normal.
and the VCC for mcp2515 is 3.3V.

