I have an OLED screen with SPI interface, 128*64 in size, and the control chip is SSD1306This screen is tested by me under the STM32 development board. The specific parameters of STM32 are as follows
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TUSB9261 is a USB 3.0 to SATA interface bridge chip from TI. The related reference materials are as follows: http://www.ti.com/product/TUSB9261[/size][/url][/color][/align][align=left][color=rgb(85, 8...
May is the month of passion and enthusiasm. Fortunately, I caught up with the first wave of enthusiasm from EE and ST and had the honor to see the beautiful face of STM32H743. Without further ado, her...
This book is based on ST's STM32 chip, including 8 projects and 19 tasks, which respectively introduce the design and implementation of LED control, the design and implementation of marquee control, t...
The LT®3086 is a versatile, low dropout, low noise 2.1A linear regulator that operates over an input supply range of 1.4V to 40V. The dropout voltage at 2.1A current is typically 330mV. A resistor se...[Details]
Electric and hybrid vehicles can charge their high-voltage battery subsystems through DC charging piles or ordinary AC power sockets. The on-board charger (OBC) is the core system of AC charging. As ...[Details]
How to adjust the speed of variable frequency motor
The speed regulation of variable frequency motor can usually be achieved through the frequency converter. The specific steps are as follows:...[Details]
On August 8, 2017, a magnitude 7.0 earthquake struck Jiuzhaigou County, Aba Tibetan and Qiang Autonomous Prefecture, Sichuan. However, while the editor was concerned about the safety of Sichuan compa...[Details]
As shown in the figure, this is a light-off reminder circuit. The circuit consists of a monostable delay circuit, a drive circuit, a buzzer, a light-emitting diode, etc. The output signal of the mo...[Details]
Switching power supply circuits are easy or difficult, with different powers and output voltages. When repairing, you need to grasp the core essentials, be fully familiar with the basic structure and...[Details]
Figure 2-2 External crystal pins
XTAL1 19
XTAL2 18
XTAL1 is the input of the inverting amplifier of the on-chip oscillator, and XTAL2 is the...[Details]
This article mainly talks about the FLASH memory mapping of the microcontroller. First, let’s take a look at the FLASH memory mapping table: In the picture above, the startup address is 0x0000, whi...[Details]
First of all, I2C and SMBus are compatible. I have personally tested that communication is possible by changing the initialization to SMBus or I2C. These days, the teacher insisted ...[Details]
According to foreign media reports, Tesla's battery research team and its partners published a new research report, claiming that they have discovered a new lithium battery technology that is higher ...[Details]
4.1 include/conskfigs/micro2440.h
Add to
#define CONFIG_SETUP_MEMORY_TAGS 1 //If this parameter is not defined, the uboot parameter must add men=memory size
#define CONFIG_INITRD_TAG ...[Details]
Do not use a single oscilloscope probe to measure the voltage across non-grounded components in the circuit, as this can easily cause a ground short circuit. The reasons why the ground wire is pron...[Details]
On August 21, local time, the U.S. Department of Commerce’s Bureau of Industry and Security (BIS) issued a statement stating that 33 entities would be removed from the “Unverified List” (UVL), 27 ...[Details]
At the same time, remember to set the delayed initialization function 1 //System clock initialization function 2 //pll: Selected frequency multiplier, starting from 2, the maximum value is 16 ...[Details]
The first step is to connect the analog circuit using Professional's isis7
The second step is to use keil uVision4 to write the debugging source program according to the usage of the circuit pins. ...[Details]