The chip data sheet says that you can choose PCLK, UEXCLK, FCLK/n as the serial port clock source. If you use PCL, the highest baud rate can reach 115.2k. If you want a higher baud rate, you need to u...
Now I need to measure the frequency, the requirements are as followsThe measurement range is 100K-135K Hz, because the signal frequency is very precise, the change is not very drastic, and it is gener...
What is considered a transfer complete? That is, in EDMA or DMA transfer, when will a transfer complete interrupt be sent? (Assuming the enable bit and transfer complete code have been set). It is not...
Many chips, such as the one shown below , generally have a description of the PowerPAD pins and the requirement to connect to GND (outside the chip)What I am more curious about is, will the PowerPAD o...
RT-Thread provides a simple virtual file system support. With it, file operations are as simple as Linux.The Virtual File System (VFS) was created by Sun Microsystems when defining the Network File Sy...
I am running a bare metal program in am1808, the system clock is 300Mhz, and the test method uses GPIO to output high and low levels to measure the execution time of 1000 nop instructions. It is found...
In
circuit design,
current
measurement
is widely used, and the main fields are divided into three categories: in measurement,
the electric meter
is used to measure the curre...[Details]
This article discusses how to wake up a touch-sensitive device such as a tablet without touching the device, using basic gesture recognition and novel proximity sensors. The article discusses the p...[Details]
China's new energy vehicles are in a transition period from research and development to real industrial development. In 2012, with the intensive launch of new energy vehicle policy planning, the de...[Details]
0. Introduction
In daily life, we often see some special-purpose vehicles. When these vehicles pass through intersections, they often obtain the right of way at intersections by temporarily op...[Details]
introduction
In the discharge process of tokamak plasma physics, the study of rupture and sawtooth is of great significance. Rupture and sawtooth exist in most tokamaks. Rupture is a notew...[Details]
Power management solutions for today's portable application processors are becoming increasingly integrated. Total power consumption, standby and sleep current consumption affect battery size, bill...[Details]
With the rapid development of urban economy, elevators are increasingly used as a vertical transportation tool. However, elevator fault detection and maintenance, especially the role of elevator remot...[Details]
Vertical cavity surface emitting lasers (VCSELs) are gradually replacing traditional edge emitting lasers, especially in low bandwidth and short-distance communication systems where cost factors ar...[Details]
LED is the abbreviation of light emitting diode, which is an electric light source made of semiconductor technology. The core part of LED is a chip composed of P-type semiconductor and N-type semi...[Details]
The concept of state machine
State machine is an important concept in software programming. More important than this concept is its flexible application. In a clear and efficient program, ther...[Details]
Printed circuit boards ( PCBs
)
are used in most electrical products
. If a PCB has low
insulation resistance
(IR), the performance of the circuits on the PCB will be greatly reduced...[Details]
It is well known to automotive suppliers that automakers are demanding more from their supply base. For connector suppliers, this means stricter requirements for product performance, stability and ...[Details]
hint:
The number of speakers and their spacing limit the sound field of a portable stereo system.
Spatial audio attempts to artificially recreate the experience of listening to sounds i...[Details]
The era of mobile access to the Internet has arrived, and it will rapidly change the business and infrastructure needs of mobile operators under a whole new trend of requirements. We need 4G LTE to...[Details]
LED lighting: Basic circuit design can be completed in as little as one day
Semiconductor manufacturers are also getting involved in the LED lighting business. The power circuit of LED req...[Details]
Linux and Android
京公网安备 11010802033920号
EEWORLD
