When doing system testing, I found that when LWIP (LAN8720) sends hexadecimal data, when there is 0x00 in the sent data, the network determines that a string of data has ended.For example, the sent da...
LATTICE Semiconductor has released two new devices, the ispPAC-POWR1014 and ispPAC-POWR1014A, to its second-generation Power Manager II product family. The Power Manager II family is a functional exte...
Our lives are filled with an ever-increasing number of tiny battery-powered devices and systems. These embedded systems must be powered by the same power supply for a long time to reduce recurring mai...
1. Gate circuit plus passive crystal oscillator can form an oscillation circuit, and the frequency can reach M level. 2. Wien bridge can generate a sine wave oscillation circuit, but the frequency is ...
[i=s]This post was last edited by chenbingjy on 2018-9-11 09:54[/i] I created a main form. Clicking the query button of the main form pops up a subform. This subform contains an edit box control. When...