Programmer Think

Reference: oled display temperature and humidity based on stm32 software IIC Author: ZPZ DayUp Release time: 2021-07-25 20:52:43 website: https://blog.csdn.net/m0_56197680/article/details/119077076?spm=1001.2014.3001.5501 IIC communication IIC physical layer IIC protocol introduction characteristic: Due to its few pins, simple ha ...

Last described how ENC28J60 wrote the first Hello World on STM32, this time based on the last modification of the driver, using UIP to achieve ARP package response, ICMP response (ping pass MCU) UIPgitee download address: https://gitee.com/jinling_gitee/uip.git Github address: https://github.com/adamdunkels/uip After downloading, the project pa ...

This article is based on the wildfire guider F103 onboard LCD screen control, if there are any inaccuracies, welcome to refer to the orthogonal flow! Preface This article first briefly introduces the principle and initialization of STM32 external interrupt EXTI and LDV5 voice module, then uses external interrupt EXTI to control the on-b ...

1, W5500 module 1. Introduction to w5500 Ethernet module (1)D-W5500 EVB Ethernet module is an Ethernet module based on WIZnet W5500 chip with high cost performance. W5500 is a full hardware TCP/IP embedded Ethernet controller, which provides a more recommended Internet connection scheme for embedded systems. (2)W5500 solidifies the TCP/IP ...

I haven't found anything useful for a long time, so I transplanted the HAL library myself. Now share it The price of the screen has increased a lot recently, In order to be cheap, I bought a 1.8-inch touch-free TFT (ST7735) screen at a treasure for 23. After buying it, I found that it was slightly different from others. I didn't see relevant ...

The w5500 used before, but the chip is becoming more and more expensive. There are about 100 lan8720a on hand. Change the scheme directly. Previously, when working in Shenzhen, the company's gateway just used this scheme. Copy it directly. Hardware design: the network port has no crystal oscillator. It is output by the mco pin of mcu. It is ...

What input mode is used to detect the input level signal? Simply remember: Detection port input low level 0 requires pull-up GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPU; Detection port input high level 1 needs to use pull-down GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IPD; You don't know the schematic diagram of your external key and wha ...

1, Experimental purpose Write a C program, review the concepts of global variables, local variables, heap and stack, and program and verify them in Ubuntu (x86) system and STM32(Keil) (stm32 sends the serial port printf information to the host computer serial port assistant through serial port). The allocation addresses of heap, stack, glo ...

Learning board: STM32F103ZET6 Previous Blogs: STM32F103 five minute introduction series (I) running lamp (library function + register) + Plus programming template + GPIO summary STM32F103 five minute entry series (II) seven registers of GPIO + GPIOx_LCKR function and configuration STM32F103 five minute introduction series (III) summary of co ...

STM32 SPI communication High speed full duplex communication bus SPI communication uses three buses and chip select lines, the three buses are SCK, MOSI and MISO respectively, and the chip select line is NSS(CS) NSS signal line changes from high to low, which is the starting signal of SPI communication. NSS is the exclusive signal line of ...