| 摘要 |
<p>Provided in the present invention is a watchdog apparatus of a main MCU, a sub MCU, and SPI communication connecting the main MCU and the sub MCU, which comprises a token generating part generating seed value and generating at least two tokens by using the generated seed value; a watchdog signal generating part generating watchdog signal respectively corresponding to the token; and judgment part judging whether the generated watchdog signal is normal, thereby providing an beneficial effect of detecting disorder of MCU by only software lock without addition of composition.</p> |
