Patent ID: 9164875
Filing Date: 2015-10-20
Classification: G06F

Abstract:
1. An error detection method of detecting an error in a program that controls hardware, the hardware executing predetermined processing via a register, the error detection method comprising: outputting a signal indicating whether the predetermined processing is in execution; detecting that a change is made in a register value in the register, which accepts control from the program to control the predetermined processing, the register value controlling a start of execution of another process, and outputting a detection signal to start the execution of the another process, when the detecting detects that the change is made in the register value; and detecting, based on the signal indicating whether the predetermined processing is in execution and on the detection signal to start the execution of the another process, an error when the detecting detects that the change is made in the register value controlling the start of the execution of the another process while the predetermined processing is in execution.