Looking at the SD Spec, we can find that SD2.0 starts to support High-Speed mode, that is, the Clock Src is 50MHz and the speed can reach 25MB/Sec. I would like to ask you: 1. Do all cards that suppor...
I want to ask how to use the DC brushless motor driver WS-2406, which uses a DC+12V driver. There are two +5V interfaces on the driver, and I don't know how to use them. There are also HALL A, HALL B,...
TI DLP technology is becoming increasingly popular in automotive applications such as augmented reality (AR) head-up displays (HUDs), one of the main reasons being its bright and vivid colors. To bett...
The project uses FR4133's four-wire SPI as a slave. The problem is that after configuration, the host keeps sending data to FR4133, but the slave can't enter the receive interrupt, that is, the receiv...
I would like to ask all the experts, can the low-pass filter achieve a 5-20KHz amplitude-frequency characteristic between 0.7-1.3? That is to say, if the input is a square wave of about 0-100V, the fr...
In 2017,
Sanan Optoelectronics
achieved sales revenue of 8.394 billion yuan, operating profit of 3.856 billion yuan, and net profit attributable to shareholders of the parent company of 3.1...[Details]
I have always wanted to write some posts and blogs, but I just couldn't bear to do it as I just graduated. After some preparation, I decided to write down some of the things I learned in the past few...[Details]
Time flies. Since the beginning of 2018, news related to home appliance companies have repeatedly made headlines, and competition in the home appliance market continues to intensify. In order to be...[Details]
When designing a product, if the application environment's requirements for power isolation are not considered, the product will be unstable due to improper design, and even high voltage may damage t...[Details]
As the brain of a mobile phone, the mobile phone processing chip is of great importance. Xiaomi, which started out as the MIUI company, has long been keenly aware of the gap between China and devel...[Details]
What are your expectations and ideas
for
the future of
Xiaomi Mi Band
?
Xiaomi Mi Band’s
official Weibo shared many netizens’ thoughts on
the future direction and functions
of Xiao...[Details]
The pins of stm32 have two uses: GPIO (general purpose io) and AFIO (alternate function io) For some pins (depending on the chip), neither of these two uses exists. For example, in 64-pin products, O...[Details]
STM32 has three startup modes. In RM0008 downloaded from the ST official website, you can find the startup-related configuration instructions: Translated into Chinese: The storage media corresp...[Details]
I have encountered many problems when tinkering with LD driver recently. I will record them one by one below. Otherwise, who will remember who in five hundred years? 1. Configuration issues of multi-...[Details]
1) ADC multi-channel acquisition: (Multi-channel acquisition must use scanning mode. In scanning mode, the channels of the rule group share a register, so DMA transmission must be used; to prevent da...[Details]
12864 LCD parallel port driver is more commonly used, but considering that sometimes the IO port of the microcontroller or MCU is limited, the serial driver method can be used. The following is ...[Details]
The circuit shown in the figure requires that the light is off when the machine is turned on. Press the button once, and the light D1 will turn on and automatically turn off after a delay of 10 secon...[Details]
Please help me analyze the clock cycles occupied by the following delay program. Seek to explain: DELAY: MOV R6, #13 DELAY1: MOV R5, #250 DELAY2: NOP DJNZ R5, DELAY2 DJNZ R6, DEL...[Details]
Embedded System
京公网安备 11010802033920号
EEWORLD
