第一百三十五章 芯片问题
笔趣阁(biquge321.com)更新快,无弹窗!
。你们的程序,将直接决定这个‘土制CPU’的运行效率!”
一番任务分配下来,所有人都被震撼了。这哪里是搞研发,这简直是搞一场“微电子领域的长征”!
“好!就这么办!”林教授终于拍板,“没有条件,创造条件也要上!这就是我们中国科研工作者的精神!”
接下来的日子,青华园的这间实验室,彻底变成了热火朝天的战场。
小张和小李搬来了成堆的晶体管、电阻、电容,以及各种型号的集成电路手册。他们像一群被饿了很久的蜜蜂,贪婪地啃噬着这些知识,试图从最基础的元器件开始,理解那些复杂的逻辑电路。
孙宇和钱浩则拿着烙铁和放大镜,在一块块实验板上小心翼翼地焊接。他们要用密密麻麻的分立元件,搭建出一个个逻辑门单元,再将这些单元组合成更复杂的寄存器、计数器。他们的手艺之精湛,让青华的几位老师都叹为观止。
周煜则带着他的团队,埋首于堆积如山的纸稿和算盘中。他们要设计出最精简的指令集,最合理的寻址模式,以及最有效的总线仲裁机制。他们争论不休,甚至为了一个数据位宽,能讨论到深夜。
郑昊则像一个不知疲倦的陀螺,在各个小组之间穿梭。他时而帮周煜推导一个逻辑表达式,时而帮孙宇解决一个元器件的参数匹配问题,时而又和小张他们一起,对着一张手绘的CPU指令周期图,争论一个时序信号的细节。
他脑子里装着的,是后世集成电路发展的整个脉络。他知道,现在他们做的这些“土法炼钢”,虽然效率低下,但却是理解芯片底层原理最好的方式。这就像是让学生从零开始,亲手搭建一个简易的收音机,虽然市场上有很多成品,但只有亲手搭过,才能真正理解其中的奥秘。
日子一天天过去,实验室的灯光总是亮到深夜。疲惫,但充满希望。
然而,新的问题很快又浮现出来。
“郑组长,出问题了!”一个下午,周煜冲到郑昊面前,手里拿着一张测试报告,脸色凝重,“我们用分立元件搭建的这个‘土制CPU’,在进行高速运算时,出现了严重的逻辑错误!而且,每次错误的位置都不一样,根本无法定位!”
郑昊接过报告,仔细看了起来。他知道,这是分立元件搭建的复杂电路,在高速运行时必然会遇到的问题——信号延迟、毛刺、串扰、温漂……这些都可能导致逻辑混乱。
这就像他们辛辛苦苦用火柴棍搭了一个精密的鸟巢,结果一阵风吹过,鸟巢就散架了。
周煜提出的,正是“土法炼钢”最致命的缺陷。如果这个问题不能解决,那么他们所有的努力,都将功亏一篑。
“这是我们之前没有预料到的。”周煜叹了口气,“分立元件的性能指标,实在太不稳定了。而且,数量越多,这种不确定性就越大。”
实验室里的气氛再次变得压抑起来。
郑昊看着那份报告,又看向桌上那块密密麻麻、焊满了晶体管和电阻的“土制CPU”板。
他知道,这不是靠简单的修修补补就能解决的问题。这需要从根本上,改变他们的“炼钢”方式。
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