摘要
针对基于PCIe总线通用RS422/485串行接口板卡无法完全国产化问题,设计了一种基于复旦微JFM7K325T高性能FPGA,通过逻辑实现PCIe总线控制、UART串口控制的多通道隔离串口板卡。模块包括FPGA电路、电源电路、隔离RS422/RS485接口电路、FPGA逻辑,上位机通过PCIe总线实现多路串行接口的数据收发。实际测试结果表明,多通道串行接口可实现常用波特率连续读写,数据稳定,各通道电地单独隔离。该设备应用稳定可靠。
In order to solve the problem that the universal RS422/485 serial interface board based on PCIe bus cannot be completely localized,a multi-channel isolated serial port board based on Fudan Micro JFM7K325T high-performance FPGA is designed to realize PCIe bus control and UART serial port control through logic.Module includes FPGA circuit,power circuit,isolated RS422/RS485 interface circuit,FPGA logic,the upper computer through the PCIe bus to achieve multi-channel serial interface date transceiver.The actual test results show that the multi-channel serial interface can realize the common baud rate continuous reading and writing,and the data is stable and each channel is electrically isolated.The device is stable and reliable in application.
出处
《工业控制计算机》
2024年第2期23-24,26,共3页
Industrial Control Computer
