摘要
介绍了一种基于DSP的激光打标控制器系统设计,系统以TMS320F2812 DSP为处理器,用CPLD扩展I/O接口,通过USB接口传输数据,高速D/A转换器控制振镜实现激光打标。在D/A转换电路中,针对双极性电压基准输出要求,使用运算放大器MCP606和MCP1525产生±2.5 V高精度电压基准,在打标软件中将图形打标和字符打标分开,能精确体现字号大小及字体变化的效果。给出了硬件电路设计方案及控制系统软件的实现方法。控制器系统使激光打标机速度、精度有了较大提高。
The design of laser marking controller based on DSP is introduced in this paper.TMS320F2812 DSP is selected as the processor of this system,and CPLD is used to extend I/Os,USB interface to transfer data,and high speed D/A convert control scanners to rotate.In terms of the D/A converting circuit,aimed to attain bipolar voltage references,operational amplifier MCP606 and MCP1525 is used to produce ±2.5 V high precision voltage reference.Graphics and characters are separated in the marking software to show the change in word size and font precisely.The design of both hardware and software are elaborated in detail.The controller improves the speed and precision of laser marking.
出处
《电子科技》
2010年第8期97-99,共3页
Electronic Science and Technology
