This article takes the classic 80C51 microcontroller as an example, and uses new concepts, new viewpoints and new methods of working state and state transition to reveal some internal laws of microcon...
Does the AD8622ARZ operational amplifier have two versions, A and B? Version A needs to be connected to a power supply, but version B does not? The circuit diagram of the AD8622ARZ in the attachment i...
Android programs are developed using Android StudioThe interface shows two drumsticks. Move the SensorTile and the corresponding drumstick will swing up, down, left, and right.When the drumstick is de...
Write clock cycle w_clk, read clock cycle r_clk, in the write clock cycle, A data will be written into the FIFO every B clock cycles. In the read clock cycle, X data will be read out of the FIFO every...
ARM Development and Debugging Tutorial Hardware Part 1: Overall architecture of the development board The development board I designed is based on the Samsung 44B0 demo board, with reference to releva...
The crystal oscillator of the microcontroller generally uses a 2-pin straight-plug crystal oscillator. Suddenly, I wonder if a passive crystal oscillator with the same frequency can be directly replac...
The global PV inverter market will shrink from $6.3 billion in 2017 to $3.7 billion in 2022 due to falling prices, according to GlobalData.
Global PV Inverter Market Value to Shrink to $3.7 Bil...[Details]
In the actual project development process, it is common to encounter modifications to the hardware circuit, and then the modified part requires the modification of the driver. Thinking about the comi...[Details]
Recently, the US embargo on ZTE has attracted much attention. Let's take a look at the relevant content with the automotive electronics editor. On April 16, local time, the U.S. Department of Co...[Details]
Chip: STM32F107VCT6 Application Pin: THOUSANDS, RMII STM32CubeMX is very convenient to use ETH. The software comes with LWIP and configuration. This time, STM32F107VCT6+DP83848CVV is used. The MII a...[Details]
1. Initial understanding of FSMC: FSMC consists of 4 modules: (1) AHB interface (including FSMC configuration register) (2) NOR flash memory and PSRAM controller (when driving LCD, LCD is like a PSRA...[Details]
sprintf is a function in the C language library that converts data types. There is a situation where In 51 MCU, define unsigned char temp; Then I want to use the serial port to print out temp in deci...[Details]
According to the description provided in the official manual of ST, it is not difficult to see that the ADC analog watchdog is actually that the user can set an upper and lower limit of the AD value...[Details]
Independent watchdog (IWDG) and low power mode are often used in STM32 development. The watchdog is to detect and solve faults caused by software errors, and the low power mode is to enter sleep mode...[Details]
A crystal oscillator can be electrically equivalent to a two-terminal network consisting of a capacitor and a resistor in parallel and a capacitor in series. In electrical engineering, this network h...[Details]
The clock system of STM32 can be directly summarized in a diagram (from the STM32F10X reference manual). The following is an analysis of this diagram 1. STM32 input clock source 1.1 Function of cl...[Details]
When STM32 uses JTMS (PA13) and JTCK (PA14) as normal I/O ports, add the following code before initialization (the order cannot be reversed): RCC_APB2PeriphClockCmd(RCC_APB2Periph_AFIO, ENABLE); G...[Details]
/*----------------------------------------------- Name: IIC protocol PCF8591 AD/DA conversion Content: Use DA input, digital tube display output digital quantity, LED display analog voltage size ...[Details]
6MHz crystal oscillator, using timer counter 1, using interrupt mode, through P1.0 to make a light emitting diode turn on for 100ms, turn off for 300ms, and repeat. Assembly programming is used to ac...[Details]
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