摘要
介绍了一款基于ARM9的心电图机热敏打印系统的设计与实现。硬件方面分析了系统的框图及热敏打印头和步进电机的核心电路,软件方面介绍了SPI接口驱动程序的编写及基于位图的波形映射算法。结果表明,该系统比传统的心电图机打印系统灵活性更高,波形质量更好。
A thermal print system for an electrocardiograph based on ARM9 MCU is introduced. The system structure frame, the circuit of thermal print head and motor control, the SPI driver and a bitmap print method are presented. Practical application demonstrates that this system works with better sensitivity and wave quality than the tradition one.
出处
《北京生物医学工程》
2008年第2期161-163,177,共4页
Beijing Biomedical Engineering
基金
国家自然科学基金(30670577
60571013
60331010)资助
