How does DSP2808 implement CAN bus to send data to the host computer?

hebolovecjj

How does DSP2808 implement CAN bus to send data to the host computer? [Copy link]

Previously, I sent data to the host computer through USBCAN2I on dsp2812. Now I want to implement the corresponding function on 2808. I typed it on dsp2808 according to the function of the code on dsp2812, but it still can't send data. I'm very depressed. Please help me!

ienglgge

Check whether the hardware is normal from the chip sending pin to the computer receiving pin. What is the status of the chip sending pin? Is there any output waveform?

kadai

From 2812 to 2808, the principle of CAN communication is the same. However, the register configuration of the two chips is somewhat different. You need to check the corresponding register configuration and the condition of the peripheral circuit. It is best to use an oscilloscope to view the waveform, which can better find the problem.

szczyb1314

There are still many differences between the registers 08 and 12. Take a closer look.

123mp

Can you add WeChat? I have any questions.