摘要
首先介绍在S3C2410A系统中利用TL16C554芯片扩展串口的硬件设计方法,其次分析了Win-dows CE下的串口驱动的流程,最后在原有串口驱动的基础上添加内核对TL16C554扩展串口的支持。实验表明,通过扩展出的串口可以实现正确地发送、接收数据信息,也可以与GSM/GPRS模块、射频模块等具有串行接口的外设正常通信。
The hardware design of TL16C554 about how to achieve the multi-serial-port expansion in intelligent instrument within S3C2410A core is introduced.Then,the flow of serial driver in Windows CE is analyzed.At last,the method how to add new serial-port COM4 based on previous serial-port COM1~COM3 driver in Windows CE for example is provided.Tests show that the new serial-port can correctly send data and receive data between intelligent instrument and PC,or other serial device.
出处
《测控技术》
CSCD
北大核心
2011年第2期69-72,77,共5页
Measurement & Control Technology
