I am making a frequency meter, but I don't know these components. I am so sad. Can someone tell me what these components are and where I can find them?...
An overall picture, a power layer, a ground layer. My board is a DSP that controls DDS to output a frequency sweep signal. It also has some other functions. The clock signal of the DSP is a 30MHz crys...
What is the difference between UWB, Bluetooth, Wi-Fi and RFID?UWB and Bluetooth
At first, UWB and Bluetooth may sound very similar. Bluetooth Low Energy (BLE) is a low-power radio system that has been...
What is KITL generally used for debugging and how to use it? Thank you! I am just getting started and I really want to know what it is used for. Thank you!...
I have a question. If a hard disk consists of 6 platters, how many heads does it have? Some people say it is 11, but I don't know if it is correct. Please tell me how to calculate it. Baidu searched t...
1. Introduction to MC68K CPU The MC683xx series of microcontrollers are composed of the famous MOTOROLA 32-bit microprocessors such as MC68K, 68020, 68040, and the compatible 68K, CPU32, CPU3...[Details]
On May 8,
Google
I/O 2018 Developer Conference was held as scheduled in Mountain View, California. In the second year of the full promotion of the "AI first" strategy, artificial intelligen...[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]
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]
Each I/O port of the AVR microcontroller corresponds to three registers: DDRx, PORTx and PINx, where DDRx is the data direction, i.e. input or output; PORTx is the state of the internal pull-up r...[Details]
Multi-byte binary division The dividend is 3 bytes, in units 0x20, 0x21, and 0x22, 0x22.7 is the most significant bit and 0x20.0 is the least significant bit. The divisor is 2 bytes, in 0x30, 0x31. A...[Details]
Today, Qualcomm Technologies, Inc., a subsidiary of Qualcomm, announced at the 2018 Qualcomm China Technology and Cooperation Summit that it has signed memorandums of understanding (MoUs) with Leno...[Details]
1. Key points of timer/counter PWM design
According to the characteristics of PWM, the following points should be noted when using the ATmega128 timer/counter to design output PWM:
1. F...[Details]
We often need to set an I/O port as output, input, or input with pull-up. In fastavr, this is how it works: Example: Set the entire A port as output: ddra=255 'Decimal representation, the single qu...[Details]
The Ministry of Industry and Information Technology issued the "Three-Year Action Plan for Promoting the Development of the New Generation of
Artificial Intelligence
Industry (2018-2020)" (...[Details]
A transformer is an electrical device that can change the AC voltage while keeping the AC frequency unchanged. In the power transmission and transformation process of the power system, the transfor...[Details]
There are many devices that can measure voltage, current, and power. Some are worth a few hundred yuan, while others are worth hundreds of thousands or even millions of yuan. Why are the prices so di...[Details]
As
3GPP
CT has initiated
further standardization of the
5G
core network protocol, China Mobile will complete
all standardization work for the first version of
5G
in June 201...[Details]