When I was reading the STM32 data sheet just now, I saw the fifth chapter about electrical characteristics. There are several figures about measuring pin parameters. I don’t quite understand the load ...
I have seen various versions online, some say that the JTAG port needs 3.3V, some say that it needs 2.5V. I have a USB_BLASTER downloader. I don't know how many volts it should use. Another question i...
[i=s]This post was last edited by flashtt on 2017-3-12 16:36[/i] First of all, I would like to express my apologies to the forum. Some of these boards were purchased during forum activities, but unfor...
Is there any expert who can help me explain the meaning of the statements with // in the following function? Thank you void init_devices(void) { CLI(); // port_init(); MCUCR = 0x00; // GICR = 0x00; //...
[color=#000]I would like to ask you, I use the eCAP module of F28335 to collect the frequency of pulses. When I stop sending pulses, the eCAP module always displays the frequency of the last pulse cap...
The piezoelectric effect was discovered by the Curie brothers when they were studying quartz more than 100 years ago. So, what is the piezoelectric effect?...