Abstract:

Comparing the USB and CAN protocols, for practical use, a converter based on STM32f107 CotextM3 is designed in this paper .It is small, cheap, and reliable, which makes sure it can be used widely. This paper includes the design methods, the framework of drivers developed by Windriver, the software development based on VB, which facilitates the device development. This converter realizes the data communication and protocol conversion between USB and CAN, which accomplishes data transmission, monitoring, display and storage. The highlight of this paper is that the rapid development of drivers is based on the thirdparty software Windriver, which avoids the catastrophic effect of possible errors on the operating system.

Key words: USB;CAN;converter;CotexM3