spi can MCP2515
MCP2515
reference:
http://ww1.microchip.com/downloads/cn/DeviceDoc/21801D_CN.pdf
https://blog.csdn.net/leesheen/article/details/8768557
reference:
http://ww1.microchip.com/downloads/cn/DeviceDoc/21801D_CN.pdf
https://blog.csdn.net/leesheen/article/details/8768557