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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]
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In the previous article, I wrote a simple GPIO running light test, which looked a bit monotonous. I was used to serial port debugging. If there was no serial port on the board, I had to find another ...[Details]
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1. Development Environment 1. Applicable chips: All STM32F4 chips 2. Firmware library: STM32F4xx_DSP_StdPeriph_Lib_V1.8.0 3，IDE：MDK517 2. Driver source code Delay.h...[Details]
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After we understand the use of libopencm3, we find that libopencm3 is only suitable for small projects. Its biggest feature is the convenience of USB. So when we configure large projects, is there a ...[Details]
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background After the hardware engineer completed the PCB and schematic design, the routine was modified according to the tutorial of Zhengdian Atom to verify the correctness of the hardware. STM32F...[Details]
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In 1952, Bell Labs built a 6-foot-tall automatic number recognition machine called "Audrey", which could recognize the pronunciation of the numbers 0 to 9 with an accuracy of more than 90%. And its...[Details]
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In the Chinese automobile market, the trend of new energy vehicles and driverless cars is leading the transformation of China's automobile industry. As the world's largest automobile market, "Chinese...[Details]
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Temperature, humidity and irradiance are must-measure items in the photovoltaic industry. However, most of the current data collection is done by storing data in USB flash drives for offline analys...[Details]
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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]
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/*----------------------------------------------- Name: IIC protocol PCF8591 AD/DA conversion Content: Use DA input, digital tube display output digital quantity, LED display analog voltage size ...[Details]
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/*----------------------------------------------- Name: DS18b20 temperature detection LCD display Forum: www.doflye.net Written by: shifang Date: 2009.5 Modification: None con...[Details]
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The circuit shown in the figure requires that the light is off when the machine is turned on. Press the button once, and the light D1 will turn on and automatically turn off after a delay of 10 secon...[Details]
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In 2014, the production and sales of new energy vehicles in China exceeded 80,000 units, and the development trend is encouraging. In order to enable new energy enthusiasts and junior R&D personnel t...[Details]
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#include #include #include "lcd12864.h" #define uint unsigned int #define uchar unsigned char #define MISO PINB.6 #define SCK PORTB.7 #define MOSI PORTB.5 #define CSN PORTC.0 #define CE PORTC.1...[Details]
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"Now I can't even afford a
memory
stick
to equip my computer
." The price of
memory
sticks has risen rapidly recently. Take 8GB Kingston
memory sticks
as an example. Compared...[Details]
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