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The first hurdle in learning embedded linux is uboot. Many friends feel helpless about this slightly complex MCU program. This is mainly because there will be many folders after extracting a uboot compressed package, which contains a lot of code. In addition, there are makefile, Kconfig, device tree and so on. I don't know where to start. If ...

CSDN blog home page ID : Eterlove One by one, record my study and life! Standing on the shoulders of giants of Giants! This article is original, please indicate the source and author! preface We often use delay to complete some project requirements, and often use the software delay achieved by CPU empty cycle to realize it. Its method has t ...

1, Common serial port register USART_SR status register Function: the status register is applicable to detect the status of the serial port at this time. Mainly focus on two bits: RXNE and TC (bits 5 and 6). RXNE (non empty read data register): when this bit is set to 1, it indicates that data has been received and can be read out (that is, t ...

background When ifconfig checks the network interface information, there are network interfaces eth0 and eth1. How are the name drivers of the two ports allocated? How to change the standard eth1 and eth0 to LAN and WAN (or users can define their own names). When ifconfig is displayed again, LAN and WAN network cards are displayed. The pr ...

OKMX8MM-CDevelopment board be based on NXP Corporate i.MX8MM ini quad core 64 bit processor design, using Core board +Backplane structure, with a maximum dominant frequency of 1.8GHz, Cortex -A53 architecture; 2GB DDR4 RAM, supporting a universal Cortex ®- M4 400MHz core processor provides a variety of peripheral interfaces, such as MIPI-CS ...

1, Hardware STM32F103C8T6, thermistor sensor, OLED. 2, Introduction of thermistor sensor A DO output port outputs digital quantity, and outputs 0 or 1 according to whether the external temperature exceeds the threshold of the sensor; An AO port outputs analog quantity. The detection of temperature shall be realized through analog quant ...

1.SPI protocol SPI is the abbreviation of Serial Peripheral Interface. It is a high-speed, full duplex and synchronous communication bus, and only occupies four wires on the pins of the chip. They are the following four MISO – Master Input Slave Output, master equipment data input and slave equipment data output;MOSI – Master ...

preface PingPong routine has provided a complete low-power processing framework. Users only need to open the application low-power macro definition for testing. When expanding, users only need to add low-power processing in their own functional modules to complete the low-power processing of the whole project. It is very convenient and r ...

0. Introduction The last issue introduced mac pro M1(ARM) installation: VMWare Fusion and linux(centos7/ubantu) In this issue, let's see how to install elasticsearch and kibana on m1 1. Install es and kibana based on centos How to install centos virtual machine on m1 can refer to the above blog 1.1 download This is based on the demonstrati ...

preface Record the process of building PingPong transceiver routine of STM32WLE5 module based on stm32subemx. The hardware platform is the blue LM401 LoraWan evaluation board of yizhilian, and the corresponding MCU model is STM32WLE5CBU6. PingPong routine has a complete data sending and receiving process, and is configured with ST's basic ...