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PostPosted: Fri Mar 02, 2018 7:56 am 
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Joined: Sun Jan 21, 2018 5:10 am
Posts: 7
Location: China
因为本人英文水平有限,只能看得懂但不会写,所以只能把一些近来研究的硬件资料发到中文板块了。上个月偶得一套配有红外手柄的胜天9900型号的FC兼容机,无线手柄接收器与主机一体化设计,且无线手柄具有1P/2P的切换功能。拆开一看,发现主机内部和无线手柄内部均是台湾螃蟹的IC,型号为RTS702与RTS703。上网查阅早年资料得知,RTS702与RTS703是上世纪90年代初瑞昱半导体专为无线手柄设计的9路编码译码IC,原理图及各引脚功能分别如下。其中RTS703为编码IC,702为译码IC。
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RTS702接收到红外信号并译码后还需要CD4021转换为手柄信号,且需要74LS157切换1P/2P,目前正在研究整个接收电路的原理,不久将会上传完整资料。


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PostPosted: Mon Mar 05, 2018 3:57 am 
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Joined: Sat Jul 04, 2015 9:58 am
Posts: 793
Location: -29.794229 -55.795374
警告:谷歌翻译!
这是一个非常好的发现!
任何可以购买这些IC的地方?

原始信息(英文):
That's a great and nice finding!
Any place where these ICs can be bought?


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