After porting ucgui, arm9, can't set the background color in the main function? ? ? ? ? Other functions, such as setting the font color, can be used. What is the reason?
Modify the cpupoweroff function in the fw.s file, and you can wake up the system through key interrupts! There is no problem with eint 0 1 2, but if you try to wake up with eint7, the system will sudd
After our device has been communicating for a period of time, the PC end cannot receive data, but it can still send data. I don't know why, so I tried to solve it later. After testing for a period of
[align=left][color=#000]I’m sure you’ve experienced the following scenario: Your engineering manager comes to you one morning and says, “We need to add connectivity to product ‘x,’ but we don’t want t
I would like to ask you seniors, when I use IR2127 to drive high-end NMOS (circuit shown in Figure 1), the input drive signal of IR2127 is shown in Figure 2, and the waveform of the gate is shown in F