We used multiple models of LOTO oscilloscopes, with bandwidths ranging from 20M to 100M , to measure passive and active crystal oscillators . We tested the waveforms of 12M, 15M , 24M, 48M, and 80M cr...
In the MFC environment, I would like to ask: When the user dials a phone number, I want my program to intercept this message. Is there any way to do this?...
I am a beginner in UCOS and just want to run the examples in the book. I followed the steps described on the Internet, installed Borland, TASM, created a project, imported five files, and built all. T...
I bought Zhennan’s board and book, read Chapter 3 of the first volume, and did experiments.The main program is as follows:delay_init(); //±uart_init(9600);
ZNX_Board_Init(); //ZN-X ·°°VS1003_GPIO_Init...
1. According to the relevant literature, most ultrasonic transmitting and receiving circuits use discrete components, which are amplified and filtered before being processed at the later stage. Howeve...