the difference between USB-CAN adapter (two extra boards) and USB-CAN Interface

本文链接：https://blog.youkuaiyun.com/viewtoolsz/article/details/88416165

本文对比了两种符合CAN标准协议的设备A和B。B在性能速度上优于A，具备2500V隔离能力，适合工业环境使用。A则支持更多GPIO及ADC功能，可通过固件转换为I2C或SPI适配器，并配备额外的CAN驱动模块，价格比B便宜约20%。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

Here is one video demo for automotive CAN message capturing.
http://www.viewtool.com/index.php/en/27-2016-07-29-02-13-53/44-ginkgo-usb-can-9
CAN adapter (A) and CAN interface (B) are both CAN standard protocol functional, The difference is:
1. Performance (speed): B is better than A, as B is working with a higher performance ST MCU (as CAN hardware);
2. Isoloation: B is 2500V isolated (all signals and power supply, GND between CAN bus and MCU+USB), so that's capable to be used in industry environment in term of interference and power surge, etc;
3. GPIO: A could use many GPIO as well as ADC (20 pins lead out, multiple functional) simultaneously working with CAN protocol. see one example :
http://www.viewtool.com/forum/forum.php?mod=viewthread&tid=169&extra=page%3D1
And plus: A could be turned to I2C or SPI adapter by burning specific firmware (see website for more detail);
B is only be used for CAN protocol (2 channels same as A);
4. Accessories: A has accessories same as ViewTool Ginkgo I2C adapter (and SPI adapter), because it could be turned to I2C or SPI adapter, and additional two CAN driver modules included.
5. Price: A is around 20% cheaper than B;

详情：http://www.viewtool.com/forum/forum.php?mod=viewthread&tid=170&extra=page%3D1