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ZTE, caught in the vortex of the US ban on the sale of chips , has sounded the alarm for China's information technology industry and revealed China's "chip disease". Let's follow the ...[Details]

1. Problem When developing STM32 with IAR, I found that I could not print floating point numbers by redirecting printf to the serial port. The code is as follows:  The output is as follows:  It can...[Details]

1.MAX31865 (1 Introduction The MAX31865 is an easy-to-use thermistor-to-digital converter optimized for platinum resistance temperature detectors (RTDs). External resistors set the RTD sensitivity, a...[Details]

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]

Regarding the PHY construction of LWIP, the PHY chip used is LAN8720A, RMII mode.  Regarding the hardware connection part, the Atomic board F407 is used, and the hardware connection is as follows:  ...[Details]

Security PPP is a new model of urban video surveillance projects: 1) The government and social capital establish a project company in a certain proportion; 2) The project company participates in the ...[Details]

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]

This program uses the eight-channel ADC single acquisition mode. According to the configuration, ADC12SC will automatically reset after the conversion is completed in the single mode, so it is necess...[Details]

What is SYSTICK: This is a 24-bit system tick timer, SysTick, with automatic reload and overflow interrupt functions. All microcontrollers based on the Cortex_M3 processor can obtain a certain time ...[Details]

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]

*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]

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]

OSC_IN and OSC_OUT are external crystal pins by default. If you do not use an external crystal oscillator on the STM32, how to connect OSC_IN and OSC_OUT If you use the internal RC oscillator instead...[Details]

1. Common knowledge about DMA.  1. Function: to achieve high-speed data transmission between chips. That is, it can achieve data transmission without occupying the CPU.  2. Mode: There are three tran...[Details]