do { ... semTake(sem, WAIT_FOREVER); ... } while(1); sem is a counter semaphore created by semCCreate. semTake can block and wait on sem for the first time, that is, semTake succeeds after sem is semG...
[i=s]This post was last edited by fish001 on 2020-2-6 22:08[/i]The hardware interface is as follows. The usage of nor flash is the same as NAND FLASH when writing and the same as DRAM when reading.2. ...
[i=s] This post was last edited by ziqidongsheng on 2016-9-2 11:14 [/i] This is a program I wrote using registers, but it can't achieve the function. Is there any great god who can help me? Thank you:...
launch pad+msp430g2553.msp430 enters LPM4. Through current testing of msp430's working current, it is consistent with the technical manual. However, after connecting a rainbow line to the IO port (not...
I am new to the community and hope you can help me. The question is: I am using VHDL to design a digital frequency counter. How should the counter count at each bin? Please give me some advice. If you...
In some applications, such as data loggers, it is desirable to have multiplexed analog outputs. When only a single output is active at a time, a voltage-output DAC">digital-to-analog converter (DAC) a...[Details]
As the whole equipment is becoming increasingly miniaturized and power-saving, low-dropout linear regulators (LDOs) with low power consumption are becoming the mainstream in the market for linear regu...[Details]
0 Introduction
Metal halide lamp (MHL) as a green lighting source has been widely used in the field of indoor and outdoor lighting. However, when using this green lighting source, the matc...[Details]
Today's mobile phone production testing faces an increasingly complex environment, with challenges of multiple frequency bands and multiple standards, pressure on production test speed, and pressur...[Details]
summary
Theoretically explains how to set up a PFC boost regulator using a current sensing transformer with the UCC3817 control IC.
1. Schematic
The schematic diagram is show...[Details]
A well-designed electronic load is not designed just for use in the lab; it should be carefully designed and built to test actual power systems. This is true for military portable systems, such as ...[Details]
1. Introduction
The UCC28051 reference design is a 100W offline AC/DC voltage converter with power factor correction (PFC). This power module design is intended to illustrate how to proper...[Details]
With the continuous emergence of new technologies and the increasing complexity of DSP real-time systems, there are more and more different types of external devices. Writing drivers for these exte...[Details]
1 Introduction
The high temperature tester is mainly used for temperature tracking measurement and data acquisition during the heating process. By systematically analyzing the test data,...[Details]
0 Introduction
At present, most of the automatic blood pressure monitoring systems used in hospitals are imported equipment, which are expensive and increase the cost of medical treatment. The...[Details]
Abstract:
Aiming at the performance requirements of the control system for micro-sized walking robots, a control system that can be used for multi-joint driving of walking robots is introduce...[Details]
Touch sensors have been in widespread use for many years, but recent advances in mixed-signal programmable devices have made capacitive touch sensors a practical, value-added alternative to mechani...[Details]
Preface
In the application of PLL, DLL and CDR circuits, people generally require the output clock signal to have a 50% duty cycle so that data can be sampled at both the rising and fallin...[Details]
With the continuous development of the national economy, the application of variable frequency speed regulation devices is becoming more and more extensive. How to break the monopoly of foreign produc...[Details]
As AC induction motors become the preferred choice for industrial motors, the need to reduce power consumption in all aspects of the design continues to emerge, so improving the efficiency of these...[Details]
Embedded System
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