If we need more than just one 8x8 dot matrix, MAX7219 can be connected in series as needed. The connection method only requires connecting the DOUT output pin of the previous stage to the DIN input pi...
I have chosen to tolerate the boycott of Japanese goods several times. I would like to ask the patriotic young people who boycott Japanese goods, why are we unpatriotic when we use Japanese goods? The...
OMAP3530 integrates ARM Cortex-A8 core, TMS320C64x+ DSP core, graphics engine, video accelerator and rich multimedia peripherals on a single chip. The Cortex-A8 core has a processing performance that ...
I just learned wdm driver development, the environment is vc 6+2k ddk. Now I want to make a usb filter driver according to the example in \src\general\stomar\filter in ddk. However, after I generate t...
[i=s]This post was last edited by hzz592788 on 2021-1-4 14:32[/i]A big guy has already lit the lamp, so it's not appropriate for me to light it again. So I just rummaged through the box and found a sc...
Recently, the U.S. Department of Commerce announced that it would prohibit companies in the country from selling any electronic technology or communication components to ZTE, a Chinese communicatio...[Details]
When talking about Chinese chips, Ni Guangnan is indispensable. Let’s learn more about the relevant content with the embedded editor.
Since he co-founded Lenovo in 1985, Ni Guangnan has been s...[Details]
Profit growth of 85% in 2017, target revenue of 12.5 billion yuan in 2018: The company released its 2017 annual report, achieving revenue of 8.886 billion yuan, a year-on-year increase of 48.01%; prof...[Details]
Guangdong Traffic Regulation No. 355
To all municipal transportation bureaus (commissions) above the prefecture level, provincial transportation groups, Guangdong Power Grid Compa...[Details]
Recently, the Provincial Development and Reform Commission and the Provincial Poverty Alleviation Office jointly organized the application for a number of centralized photovoltaic poverty alleviation ...[Details]
1. Determination of STM32 ADC sampling frequency 1. First, read some information to determine the ADC clock: (1) The ADCCLK clock provided by the clock controller is synchronized with the PCLK2 (A...[Details]
According to MEMS Consulting, Japan's
Toshiba
will further develop its automotive
LiDAR
(laser radar) semiconductor business, mainly focusing on: (1)
light receiving elements use...[Details]
Since China began to try to produce panels independently in 1998, in 2018, China's panel industry has gradually upgraded from a marginal industry to the largest production scale. Especially in the ...[Details]
I am going to do a project recently, which requires counting the frequency and duty cycle of the external PWM signal. The chip used is STM32F207 Looking at the datasheet, I found that one of the ma...[Details]
I rewrote the main part of this program. The program uses the watchdog as a normal timer and scans the digital tubes in the watchdog interrupt. In addition, I added a display buffer. If you want to d...[Details]
The watchdog timer is used to prevent the program from running away due to strong interference noise caused by power supply, space electromagnetic interference or other reasons. Many microcontrollers...[Details]
*This article is based on the author's report at the "Embedded System Association Theme Discussion (Total 22nd) - Current Situation and Development Prospects of Internet of Things Operating Systems...[Details]
In January, Android 7.0 Marshmallow surpassed Lollipop three years ago to become the second most used Android version in the world. According to
the latest data from
Google
, a snapshot of d...[Details]
Making a digital sampling oscilloscope has been my long-standing wish, but after all, this goal is quite difficult, and there are too many aspects involved, such as analog front-end circuit, high-spe...[Details]
I encountered a problem when debugging the STM32 system clock setting: TIM2 timing 1Ms, TIM2 interrupt service function time++, LED state changes when time=100. After the program runs, I found that t...[Details]
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