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#include reg51.h #include intrins.h #include stdlib.h #define uchar unsigned char #define uint unsigned int /*Port definition*/ #define data P0 sbit rw=P2^5; sbit rs=P2^6; sbit en=P2^7; sbit psb=P...[Details]
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During MWC2019 in Shanghai on the 27th, a sentence in his speech by Yang Jie, chairman of China Mobile, "Starting next year, mobile phones that only support NSA will not be able to access the network...[Details]
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Apple today pushed the watchOS 8.4 Developer Preview Beta2 update (internal version number: 19S5539e) to Apple Watch users. This update was released three weeks after the last one. watchOS 8 br...[Details]
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In recent years, the design of smartphones has become increasingly focused on being thin, light and convenient, which not only sets higher standards for device integration, but also brings challeng...[Details]
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The purpose of GPU is to convert and drive the display information required by the computer system, and provide line scanning signals to the display to control the correct display of the display. It ...[Details]
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Diesel engines without cams
The ultimate state of variable valve mechanism with maximum freedom is electric valve. Directly driving the valve with solenoid can freely control timing, lift ...[Details]
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Connecting the pole-zero cancellation circuit to the signal input terminal can eliminate the downstroke caused by differentiating the probe signal, making the pulse return to the baseline monotonica...[Details]
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Meizu Technology officially announced last night that the construction of the Meizu 17 launch venue will begin at 8:00 on May 4th. Visitors are welcome to come and supervise the construction, w...[Details]
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1. General timer overview and performance 1.1 Overview On the stm32 chip used by the author, there is a total of 1 advanced timer TIM1 and 3 general timers TIM2, TIM3, and TIM4. Each general time...[Details]
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Complementary multivibrator circuit
The complementary tube multivibrator circuit is shown in Figure 3. The circuit is still composed of two-stage collector-base resistor-capacitor coupled inverters...[Details]
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start.S source code: .globl _start _start: // 0 address b reset // When resetting, the CPU jumps to address 0. In fact, after resetting, the CPU is in management mode (svc) ldr pc, =unde...[Details]
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Undoubtedly, salary is an important factor in choosing a job. As the Sino-US technology war continues to escalate, China has attached unprecedented importance to the semiconductor industry. Semicondu...[Details]
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Before last year's Double Eleven, Huawei launched the new 4G nova 5z with a very high cost performance. It is equipped with a 7nm Kirin 810 processor, an extreme full-screen design, a rear 48-megapix...[Details]
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South Korea, which has taken the lead in commercializing 5G in the world, attaches great importance to the quality and progress of 5G commercialization. Statistics show that the number of 5G base sta...[Details]
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The all-vanadium liquid flow energy storage battery production project is one of the key projects newly started in Dunhua City in 2024. Since the start of construction of the project, the construction...[Details]