| 基于ATmega128和CH374的USB接口设计 |
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| 引用本文： | 范伟成,宗情,朱辰元,彭小方.基于ATmega128和CH374的USB接口设计[J].国外电子元器件,2012(2):129-131. |
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| 作者姓名： | 范伟成 宗情 朱辰元 彭小方 |
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| 作者单位： | 上海齐耀动力技术有限公司,上海201203 |
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| 基金项目： | 上海市优秀技术带头人计划资助项目（11XD1422700） |
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| 摘 要： | 针对嵌入式MCU的USB接口需求,提出了以ATmega128为微处理器,采用USB控制器CH374,用SPI串口方式设计了一款USB接口,以解决嵌入式MCU与PC机进行通讯问题。文中介绍了该接口的硬件电路和软件设计方法,充分利用南京沁恒公司提供的资源,大大降低了软件设计的难度,提高了工作效率。在1KW碟式斯特林太阳能热发电装置中得到了应用,实践证明,该USB接口工作稳定、可靠,成本较低,取得了良好的应用效果。
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| 关 键 词： | ATmega128 CH374 SPI USB接口 |
Design of USB interface based on ATmega128 and CH374 |
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| FAN Wei-cheng,ZONG Qing,ZHU Chen-yuan,PENG Xiao-fang.Design of USB interface based on ATmega128 and CH374[J].International Electronic Elements,2012(2):129-131. |
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| Authors: | FAN Wei-cheng ZONG Qing ZHU Chen-yuan PENG Xiao-fang |
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| Affiliation: | (Shanghai Micropowers Ltd.,Shanghai 201203,China) |
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| Abstract: | In order to meet the requirements of embedded MCU and achieve the communication solution method between embedded MCU and PC,a USB interface has been designed,which uses the ATmega128 as the microprocessor,CH374 as the USB controller,and SPI method.The hardware circuits and software design methods have also been proposed,which using the resources provided by Nanjing Qinheng.The utilization in the 1kW dish/Stirling solar power system has proved that this USB interface is stable,reliable,and cost competitive. |
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| Keywords: | ATmega128 CH374 SPI USB interface |
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