Recently, the dormitory has changed to a smart meter. The power is on at night, but the computer, desk lamp and other electrical appliances cannot be turned on. Once turned on, it will be detected and
Embedded systems are undoubtedly one of the hottest and most promising IT application areas. Embedded systems are used on some specific dedicated devices. Usually, the hardware resources (such as proc
The model of the quad 2-input NAND gate is CC4011. Please see the figure below for its pin function table. It has 4 NAND gates inside. I only used 3 of them in the circuit, namely 1, 2, and 4, and the
How many RAM chips are needed to form a storage system using the following chips? How many bits of address are needed for off-chip address decoding? Assume that the system has 20-bit address lines and
I risked my life to share the teacher's courseware with you. Last time, it was the first time to post it, so it was not very good. This time, I packaged all of them together. You can download them dir