Method and device for testing the correct functioning of a transmission serial data

摘要

Abstract invention patent: method and device for testing the correct functioning of a transmission of data in series.The present invention relates to a method for testing the function of a correct transmission of data in series in a bus system and at least two participants from the bus, and the participants are coupled to the bus bus through a unit acopladora Bus and through the bus exchange messages.With access to transmission to the bus for a message is provided by the method of arbitration in accordance with the standard can ISO 11898 - 1 for a participant of the bus, that this message will be the transmitter, and the messages have a logical structuring of agreement c Om the pattern can, in other words, are made on the basis of the start bit of table, the field of arbitration.The control field, data field, the field CRC field of confirmation (acknowledge) and field end of the table, and by a comparison of a transmitted signal sent to the unit acopladora bus with the signal receiver (can _ Rx) received by the unit coupled to the bus.You will be tested for correct function of the transmission of data during transmission and is characterized by the fact that in the transmitter, the signal transmission (can _ TX) is given a signal transmission (can _ TX _ Del) delayed by a time delay (t _ delay).And in dependence on a switch to the correct function test of data transmission will be used in the broadcasting signal not delayed (can _ TX) or the broadcasting signal retarded (can _ TX _ Del).