Which PCB sample is cheap on Taobao? 10cm*10cm or less for 50 yuan. Thank you, student party. If there is any violation, please delete it by the moderator (qq 191676466)
I have an am3359 board. Before, the serial port and SD card could boot normally. When debugging vxworks, I used these two methods to boot no less than a hundred times, and there were no problems. But
I can't understand the code when writing it with ccs, which means I have reached a bottleneck. Is there any expert who can help me? Thank you very much!
These days, when I was working and writing programs, the drawbacks caused by my lack of good habits were increasingly exposing fatal flaws. I even doubted whether I could write programs anymore. I did
MAX3485 and MAX485 are both 485 communication chips, with operating voltages of 3.3V and 5V respectively. Can the two chips be used together, that is, the output pins A and B of the two chips are conn