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ch451
- ch451芯片的驱动程序,并附有一个详细的例子,ch451的一个键盘扫描显示芯片,最多支持64个键盘,但只占用4个单片机口-ch451 driver chip, together with a detailed example, ch451 of a keyboard scan display chip, supports up to 64 keyboards, but it only takes four microcontroller port