The following is an example program that simulates an SPI (Serial Peripheral Interface) bus controller using the C language, implementing the functionality of SPI through simulated GPIO pin operations, including initialization, sending bytes, and receiving bytes. This example is suitable for general microcontroller platforms, and the GPIO operation code needs to be modified according to … Read more
Author | Confused Zhen Produced by | Automotive Electronics and Software #01Introduction to Serial Peripheral Interface (SPI) Protocol SPI is a multi-master or master-slave, four-wire, full-duplex synchronous serial communication protocol, which means that data can be sent and received simultaneously.SPI was developed by Motorola as a protocol for synchronous serial communication, allowing full-duplex communication between … Read more
I often use ZYNQ, and I access FPGA registers through Linux. Recently, I experimented with the Xilinx XC7K325 development board KC705, which is a pure FPGA without ARM. So how do we access FPGA registers? I2C transmits one byte and responds each time, without the need for an additional feedback mechanism; SPI sends and receives … Read more
Click the blue text Follow us STM32 SPI Communication High-speed full-duplex communication bus The SPI communication uses 3 lines and a chip select line. The 3 lines are SCK, MOSI, and MISO, and the chip select line is NSS (CS). The NSS signal line goes from high to low, which is the start signal for … Read more
Author | Confused Zhen Produced by | Automotive Electronics and Software #01Introduction to the Serial Peripheral Interface (SPI) Protocol SPI is a multi-master or master-slave, four-wire, full-duplex synchronous serial communication protocol, which means that data can be sent and received simultaneously.SPI was developed by Motorola as a protocol for synchronous serial communication, allowing full-duplex communication … Read more
1Module Source>>> Product Physical Display: Data Download Link:http://www.lcdwiki.com/en/2.8inch_SPI_Module_ILI9341_SKU:MSP2807 2Specifications>>> Download the data from the link above. Operating Voltage:3.3V-5V Operating Current:90mA Module Size:50.0(H) x 86(V) MM Pixel Size:320(H) x 240(V) RGB Driver Chip:ILI9341 Communication Protocol:SPI Operating Current:90mA Module Size:50.0(H) x 86(V) MM Pixel Size:320(H) x 240(V) RGB Driver Chip:ILI9341 Communication Protocol:SPI 3Porting Process>>> Our goal is … Read more
Recently, a reader asked a question: What communication technologies should one master when working with microcontrollers?With the development of technology, there are more and more communication technologies, but in the embedded field, the common communication technologies are actually not many, such as UART, I²C, SPI, CAN, USB, and TCP/IP, which are the most common.These communication … Read more
1Module Source>>> Product Physical Display: Data Download Link:http://www.lcdwiki.com/en/3.5inch_SPI_Module_ILI9488_SKU:MSP3520 2Specifications>>> Operating Voltage:3.3V Operating Current:20MA Module Size:56.34(H) x 98.00(W) Pixel Size:320(H) x 480(V)RGB Driver Chip:ILI9488 Communication Protocol:SPI Number of Pins Used:14 Pin (2.54mm pitch header) Size Parameters 3Porting Process>>> Our goal is to port the example to the Lichuang CW32F030C8T6 development board. Follow the steps below to … Read more
In the modern technology field, embedded system interfaces play an indispensable role as the core hub for information exchange. Various interfaces achieve efficient data transmission and intelligent collaboration between devices through standardized communication protocols and specifications. As one of the core technologies in embedded development, a deep understanding and proficient use of interfaces directly determine … Read more
The three low-speed communication protocols IIC, SPI, and UART are widely used in our actual designs. Common communications between various ICs and between PCBs and external serial ports often utilize these protocols. Today, we will specifically share the similarities and differences among these three low-speed communication methods. Communication Name SPI IIC UART Synchronization/Asynchronous Communication Synchronization … Read more