I am looking for a detailed and detailed literature or article on the theoretical explanation of parallel communication between 51 microcontroller and FPGA. QQ: 1783045304
Dear experts,I need a crystal oscillator and a frequency divider to make a square wave signal with a frequency of 60~80HZ, which is used to control an analog switch. Thank you, I need it urgently!
The signal strength of a mobile phone is -109dbm, 31asu--- Why is dBm a negative value? -100dbm and -120dbm, which signal is stronger? What does 31asu mean?