教授kevin对我说的一些话(在IM上),受益匪浅

working in a job is for the mainstream
'doesn't matter whether you are best or good or just good enough
most people find a job
very little unemployment
here anyway
also, very few of all people in workforce get senior high-paying positions
very few
in fact, the people that cheat are MORE likley to get those high paying jobs than the best employee
why?
because it is a competition
very few senior positions
only the strong win
so, if u are hoinest and not prepared to cheat
chances are few you will make it
need edge, like daddy, or old-boys net
if dun have, then you must be really good to rise at all
so, you can rise, but unlikely to top
HOWEVER
if you are young, driven, and really GOOD
make your own destiny
make your own company
yes risky
yes painful
yes failure is ever present friend
but, rewards are greater than you can know now
take your cert
create your own consulting company
maybe you only at first
sub-contract out to sw companies
wait - someone at door


汉字字库存储芯片扩展实验 # 汉字字库存储芯片扩展实验 ## 实验目的 1. 了解汉字字库的存储原理和结构 2. 掌握存储芯片扩展技术 3. 学习如何通过硬件扩展实现大容量汉字字库存储 ## 实验原理 ### 汉字字库存储基础 - 汉字通常采用点阵方式存储(如16&times;16、24&times;24、32&times;32点阵) - 每个汉字需要占用32字节(16&times;16)到128字节(32&times;32)不等的存储空间 - 国标GB2312-80包含6763个汉字,需要较大存储容量 ### 存储芯片扩展方法 1. **位扩展**:增加数据总线宽度 2. **字扩展**:增加存储单元数量 3. **混合扩展**:同时进行位扩展和字扩展 ## 实验设备 - 单片机开发板(如STC89C52) - 存储芯片(如27C256、29C040等) - 逻辑门电路芯片(如74HC138、74HC373等) - 示波器、万用表等测试设备 - 连接线若干 ## 实验步骤 ### 1. 单芯片汉字存储实验 1. 连接27C256 EPROM芯片到单片机系统 2. 将16&times;16点阵汉字字库写入芯片 3. 编写程序读取并显示汉字 ### 2. 存储芯片字扩展实验 1. 使用地址译码器(如74HC138)扩展多片27C256 2. 将完整GB2312字库分布到各芯片中 3. 编写程序实现跨芯片汉字读取 ### 3. 存储芯片位扩展实验 1. 连接两片27C256实现16位数据总线扩展 2. 优化字库存储结构,提高读取速度 3. 测试并比较扩展前后的性能差异 ## 实验代码示例(单片机部分) ```c #include <reg52.h> #include <intrins.h> // 定义存储芯片控制引脚 sbit CE = P2^7; // 片选 sbit OE = P2^6; // 输出使能 sbit
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