Should we not restrict the use of E coins to purchase self-operated products? Now E coins can only be used to purchase self-operated products. Currently, it seems that self-operated products have "few
This is a crystal oscillator welded on a circuit board. The two sides of the circle are the card holders. This is a preventive measure to prevent the crystal oscillator from being damaged by vibration
As shown in the figureThe op amp with positive and negative 15V power supply and the ADC with 5V power supply after stage are unbuffered according to the input range given by AD7790.GND-30mV to Vdd+30
I use VB.net to develop a small program with a textbox input box. I want to make the program pop up the input keyboard when I click the input box in cE6. How can I do it? Thank you
Two tasks: Task1: Priority 5 LED flashes Task2: Priority 6 Test external interrupt When I press the external interrupt, UcosII always runs the idle task. Why? What could be the fault? ?