ISD400416MPD

1. Every time we insert a USB drive, a device node /dev/sda%d will be automatically created for the USB drive   This is because device_create() is called inside, and the busybox mdev mechanism will c...[Details]

Eight interrupt request sources: 1. External interrupt 0 2. External interrupt 1 3. External interrupt 2 4. External interrupt 3 5. Timer 0 interrupt 6. Timer 1 interrupt 7. Timer 2 interrupt 8. Seri...[Details]

Honor 20i was officially released. As the first new product in the Honor 20 series, the phone attracted many consumers with its 32-megapixel AI selfie, high-value gradient color body and attractive p...[Details]

Set interrupt vector table ;FileASM_Interrupt.s ;(1)Set the interrupt vector table Mode_USR EQU 0x50 ; IRQ interrupt is open, FIQ interrupt is closed Mode_FIQ EQU 0xD1 ; turn off IRQ and FIQ in...[Details]

Before Apple's fall conference began, Tianfeng International analyst Ming-Chi Kuo gave a latest report, in which he revised and pointed out that the reverse charging function of the new iPhone will b...[Details]

Function of the circuit The field effect transistor drain saturation current IDSS and pinch-off voltage VP are very different, so it is troublesome to determine the bias. Although the manufacturer...[Details]

Ningbo Weicheng Technology Co., Ltd. was founded in 2006. It is a national high-tech enterprise specializing in the research and development, manufacturing and sales of intelligent security prote...[Details]

0 Introduction Digital tube displays are often used in the design and production of instruments and meters, and sometimes there are many digital tubes. If a separate drive circuit is designed ...[Details]

　 　1 Question 　　With the development of production and the advancement of technology, especially the widespread application of various power electronic loads with rectifier inlets, that is, the emer...[Details]

1. Power transformer In addition to supplying power to the amplifier, it can also couple the amplifier with the power supply , so that the interference source in the power grid enters the am...[Details]

symbol _assert_failed not defined (Debugstm8s_adc1.o ) This problem occurred when debugging STM8, that is, the function assert_failed was not defined. I searched for the problem and found that void...[Details]

Even though foldable phones are more expensive and problematic to manufacture than standard smartphones, Samsung remains focused on foldable devices and reportedly has ambitious plans for the upcomin...[Details]

       It has only been more than 20 years since feature phones that could only answer calls were introduced to the frequent iterations of smartphones. Over the years, many mobile phone brands have r...[Details]

Introduction The ZVH is a rugged, easy-to-handle cable and antenna analyzer for use in the field. Its light weight and simple operation make it an indispensable and efficient measuring instrument for...[Details]

The original intention of developing new energy plug-in hybrid technology is to enable the car to operate in both oil and electricity modes, and to run farther, have longer battery life, and consum...[Details]