Title:
COMMUNICATION SYSTEM AND SLAVE
Document Type and Number:
Japanese Patent JP2018207447
Kind Code:
A
Abstract:
To transmit data at a predetermined transmission timing without deviating out of a communication standard.SOLUTION: A reference slave 3 for transmitting data first in accordance with the reception of a sink pulse is configured to, when receiving the sink pulse, transmit data at a predetermined transmission timing by using a highly accurate clock. A non-reference slave 4 for transmitting data after the reference slave 3 transmits data in accordance with the reception of the sink pulse is configured to, when receiving the sink pulse, transmit data at an input timing of a transmission request by using a lowly accurate clock. The non-reference slave 4 measures a lapse period from a start timing by using the lowly accurately clock, and detects normality/abnormality of a measured value at a reception timing of data from the reference slave 3 with a reception timing of the sink pulse as a start timing. The non-reference slave 4 executes correction processing to correct an output timing of the transmission request when detecting the abnormality of the measured value.SELECTED DRAWING: Figure 1
Inventors:
SAKAGAWA HIDEKI
MATSUO ISSHIN
YAMADA KENJI
MATSUO ISSHIN
YAMADA KENJI
Application Number:
JP2017114272A
Publication Date:
December 27, 2018
Filing Date:
June 09, 2017
Export Citation:
Assignee:
DENSO CORP
International Classes:
H04L12/28; G06F13/42; H04L7/00
Attorney, Agent or Firm:
Patent Business Corporation Sato International Patent Office