{"error":{"root_cause":[{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*89c2051 pdf datasheet (8-bit M.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1"}],"type":"search_phase_execution_exception","reason":"all shards failed","phase":"query","grouped":true,"failed_shards":[{"shard":0,"index":"recommend_keyword_search_v1","node":"c8Ry91qkQA6igO07LZRl5w","reason":{"type":"query_shard_exception","reason":"failed to create query: {\n \"regexp\" : {\n \"keyword\" : {\n \"value\" : \".*89c2051 pdf datasheet (8-bit M.*\",\n \"flags_value\" : 65535,\n \"max_determinized_states\" : 10000,\n \"boost\" : 1.0\n }\n }\n}","index_uuid":"SON-ziQURzKK3JljPlVlCQ","index":"recommend_keyword_search_v1","caused_by":{"type":"illegal_argument_exception","reason":"expected ')' at position 34"}}}]},"status":400}
The AT89C2051 is a low-voltage, high-performance CMOS 8-bit microcomputer with2K bytes of Flash
2009-04-09 13:39
89C2051驱动步进电机的电路和源码资料推荐
2021-05-14 06:13
以学习单片机为目的,为在没有仿真器和目标板的情况下对单片机内部程序运行时 有感性的认识,以常用的 89C2051 单片机为核心,利用 Proteus 仿真软件的硬件仿真模块建 立一个正弦波发生电路
2011-08-03 09:29
求下这个基于AT89C2051的仿真程序,大神
2015-12-11 12:33
本帖最后由 lee_st 于 2016-11-9 00:53 编辑 由于有人说是盗用,撤下本贴,虽然我已经声明是转帖了
2016-11-08 09:24
摘要 :阐述了新型单片机8902051构成的转动控制系统及程序框图,描述了由8902051单片机构成的开关扫描、电源频率输出、电动机正反转的软硬件结构,并介绍了监测电池电量的电路和报警系统。
2009-10-10 10:52
of an 8-bit synchronous down counter with a single output whichis active when the internal count
2011-01-14 20:30
AT89C2051单片机1智能充电器
2015-04-10 18:38
键依次进入8路定时调整状态:时、分。此时按K2键,完成+1。当显示“out”时,按K2键,即可退出! 三、原理图和PCB图 以下为AT89C2051的智能时钟的内部程序点击查看源程序:/files/otherimages/2014-5/d/201405281031
2021-05-14 06:49
采用AT89C2051的6位电子钟原理如下图所示,只要硬件连接无误,保证成功。另外图中的SET按纽用于校准时间。按住2秒以上进入校准时间状态及换档和退出,快速点触用于调节时间数值。三极管采用
2021-05-14 06:27