摘要
在简介ADS7846的工作原理之后,说明MotorolaDragonBall系列MCU系统中ADS7846的具体硬件连接形式,详细介绍了使用SPI连续产生中断的形式来实现触摸点数据采集的方法,包括用C语言实现其功能的具体算法和程序流程。
This paper first describes the principle of touch pannel controller ADS746 and the serial peripheral interface master module in DragonBall series MCU, then we introduce the method of using consecutive SPI interrupt in data acquisition, including function implemtation with C language and its flowchart.
出处
《电子器件》
CAS
2003年第3期314-316,共3页
Chinese Journal of Electron Devices
