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1 Introduction For most engineers, I2C is always a headache. Compared with UART and SPI, I2C timing is more complicated and I2C combination changes are more abundant. Here we take AT24C04 as an e...[Details]
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The world's first metal detector was born in 1960. Entering the industrial age, the first metal detectors were mainly used in the mining industry, and were a powerful helper for checking the purity ...[Details]
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The figure shows a 4W/5V switching voltage regulator circuit. This circuit uses the TOPSwitch series T0P100 device. The TOPSwitch (Three Terminal Offline PWM Switch) series device is a three-termin...[Details]
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The Huawei P50 uses a 6.5” flexible OLED screen, while the Huawei P50 Pro uses a 6.6” flexible curved OLED screen. The former supports a 90Hz refresh rate, while the latter supports a 120Hz refresh r...[Details]
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The positive and negative poles of a crystal diode can be identified by the following methods:
1. Look at the symbol on the shell: The symbol of the diode is usually marked on the shell of th...[Details]
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MCU memory configuration:
On-chip RAM 128 bytes (00H-7FH);
The first 32 units of the on-chip RAM are the working register area (00H-1FH)
The on-chip RAM has 128 bit-addressable bits, occupyin...[Details]
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Use the IO mode of STC's MCU to control the 74HC595 to drive the 8-bit digital tube. The user can modify the macro to select the clock frequency. The display effect is: display the second count, do n...[Details]
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Today, Luo Yonghao posted on Weibo that "Because there are too many misunderstandings, I solemnly declare here: FLOW e-cigarettes have no interest relationship or any form of cooperative relationship...[Details]
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On May 31, according to Android Police, a Google Pixel 7 engineering machine was sold on eBay for US$510 (128GB version, approximately RMB 3,400). eBay did not give the detailed parameters of...[Details]
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Before the end of August, I would like to sort out and share the current status of hybrid vehicles (unless otherwise specified in this article, hybrid refers to non-plug-in HEVs) in China, using Chin...[Details]
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The annual Double Eleven e-commerce war is about to begin, and major merchants are gearing up to launch a variety of promotional activities to attract the attention of "shopping addicts". It ...[Details]
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Re-encapsulate a layer of functions for bsp layer functions for easy calling. void bsp_led_init(void); void bsp_led_deinit(void); void bsp_led_on(bsp_led_t ch); void bsp_led_off(bsp_led_t ch); void...[Details]
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Data types supported by the ARM compiler
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Data type Length (bits) Alignm...[Details]
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#include "main.h" /****************************** C51 Program for modbus RTU 89S52 microcontroller Communication baud rate 9600 8-bit data 1-bit stop bit even parity 485 bit interface MCU control...[Details]
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To set the system to work in svc privileged mode, we know from the previous learning that this requires setting the CPSR program status register.
In the ARM Architecture Reference Manual.pdf d...[Details]
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