[i=s]This post was last edited by qi777ji on 2019-4-25 12:53[/i] [size=4][color=#008000]The disadvantage of using the blocking delay method to implement threads is obvious. All threads must be scanned
BYD car navigation uses winc5.0 system ARM9 + 64MB memory all-in-one machine. We found that only the original navigation software can make sound. If the navigation software is changed, there will be n
T1 and T2 are PNP transistors, and the collector is grounded. So when the input IN+ and IN- are both greater than zero, the collector junctions of T1 and T2 are reverse biased, and they either work in
For the OV7670 camera, many driver codes found online are based on modules with FIFO cache. Now consider a question: remove the FIFO chip, and then connect the camera's data line and clock line direct