| 摘要 |
<p>Provided is an on-board diagnosis joint, including: a diagnosis chip and an analogue switch array chip electrically connected to the diagnosis chip. The diagnosis chip is integrated with a processor chip and a NOR Flash chip. The diagnosis chip runs a diagnosis program and controls the analogue switch array chip to be logic ON according to the running result, thus being electrically connected to a vehicle diagnosis interface, and complete the diagnosis function by way of a corresponding diagnosis protocol. The on-board diagnosis joint can run a complete diagnosis function with a single chip, the analogue switch array chip therein is integrated with a large number of relay circuits and data transmission circuits, which can realize functions such as digital signal and analogue signal conversion, strobe of the diagnosis pin, etc. with low costs, and provide support for the minimization and low cost of the vehicle diagnosis apparatus.</p> |
