| 摘要 |
PURPOSE:To restart a program economically, by repeatedly restarting a microprocessor by a restart signal, and also outputting an alarm signal until normal operation is performed. CONSTITUTION:A soft clock SCLK generated when a program is executed normally in every cycle of a hard clock HCLK is applied to the reset terminal RST of a counter CTR and the reset terminal R of a latch circuit LCH. A reset signal PRST or an alarm signal ALM1 generated when the power source is turned on triggers a monostable multivibrator MMV2 to output a restart signal RSAT to a latch circuit LCH through an OR circuit OR3, and the signal is used as the reset signal MRST of a microprocessor, thereby restarting the program. |
