[i=s]This post was last edited by paulhyde on 2014-9-15 03:31[/i] I really don’t know if ultrasound can detect the grid around the four axes because I don’t have the materials. . . I read in the liter...
The error is as follows:undefined first referencedsymbol in file--------- ----------------FS$$MPY C:\\ti\\myprojects\\cputimer2\\Debug\\DSP28_CpuTimers.obj FS$$TOUL C:\\ti\\myprojects\\cputimer2\\Debu...
C1=1000P, R1=10K determines the center frequency. R3=160 ohm, C2=0.1U in the low-pass filter. Pins 3 and 4 are short-circuited, which may not be clearly drawn in the diagram. Now input a signal of abo...
After reading all the information about MSP430G2, I was hesitant. In the end, I took the initiative to test my beloved 430 and experimented with the touch sensing daughter card. I removed the capacito...
I am testing video playback on the at91sam9261-EK evaluation board. The system is WINCE 6.0. Both the system's own player and the one developed by DSHOW can play wmv format files, but they are not smo...
When talking about Chinese chips, Ni Guangnan is indispensable. Let’s learn more about the relevant content with the embedded editor.
Since he co-founded Lenovo in 1985, Ni Guangnan has been s...[Details]
Profit growth of 85% in 2017, target revenue of 12.5 billion yuan in 2018: The company released its 2017 annual report, achieving revenue of 8.886 billion yuan, a year-on-year increase of 48.01%; prof...[Details]
I have read the source code of mbed these days, and the interface encapsulation for upper-level application calls is quite good. The code quality is relatively high, the comments are also very detai...[Details]
Using Systick timer to achieve delay 1. SysTick timer characteristics The SysTick timer is a 24-bit down counter, that is, when vlue is decremented to 0, an interrupt is triggered and the load va...[Details]
On April 18-19, 2018, at the "Second Distributed Photovoltaic Carnival" held in Hangzhou, Jinko Power and China New Energy Assets Investment, Financing and Trading Platform (hereinafter referred to as...[Details]
China Energy Storage Network:
At the Boao Forum, Zhu Min, the current dean of the National Institute of Finance at Tsinghua University, said: "When talking about blockchain, we must first sep...[Details]
Recently, Jiangsu GoodWe Power Technology Co., Ltd. ("GoodWe") unveiled two products of the SDT family, the 17kW smart photovoltaic inverter GW17KN-DT and the 20kW smart photovoltaic inverter GW20KN-D...[Details]
I used the bit definition in my 51 program: bit flag. After defining it this way, I ran the program and downloaded it to the circuit board. I found that the flag was not the value I set, which led to...[Details]
Today’s medical devices are filled with increasingly complex electronic devices that monitor, display, assist and warn patients. The latest generation of medical device electronic devices are smaller...[Details]
The Vatican Secret Archives is one of the world's greatest historical collections, but many of its documents have never been transcribed. Recently, a project called Codice Ratio used a
combination...[Details]
I encountered a problem when debugging the STM32 system clock setting: TIM2 timing 1Ms, TIM2 interrupt service function time++, LED state changes when time=100. After the program runs, I found that t...[Details]
If you do not use an external crystal on the STM32, the connection method of OSC_IN and OSC_OUT If you use the internal RC oscillator instead of an external crystal, please follow the following metho...[Details]
Interrupts and timers implement a 24-hour clock. The program is as follows: #include reg52.h #define PORTLEN P0 sbit bit_select = P2^0; sbit seg_select = P2^1; unsigned char src = {0x3f,0x06,0...[Details]
An easy programming question for microcontrollers! Urgent, write a 3-byte binary subtraction subroutine. When using the main program to call multiple groups of data for debugging, two situations need...[Details]
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