| 摘要 |
PROBLEM TO BE SOLVED: To suppress narrowing of a voltage range even if an A/D converter for outputting an A/D conversion value involves an individual characteristic variation, in an electronic device configured to determine whether there is an anomaly on the basis of comparing an A/D conversion value of a voltage based on a supply voltage with limit values.SOLUTION: Each of a plurality of electronic devices 1 includes a port 62a, an A/D converter 52, a memory 54, and a determination circuit 56, and the determination circuit 56 compares an A/D conversion value, which results from a conversion of a voltage based on a voltage input into the port 62a by the A/D converter 52, with limit values 541, 542 recorded in the memory 54 to determine whether there is an anomaly. In a process targeted on each of the plurality of electronic devices 1, a predetermined voltage is input into the port 62a of the target electronic device 1, and in the target electronic device, an A/D conversion value, which results from the conversion of the voltage based on the predetermined voltage input into the port 62a by the A/D converter 52, is recorded as the limit values 541, 542 in the memory 54. |
