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软件类型:国外软件 软件分类:硬件基础 授权方式:免费软件 界面语言:英文软件 软件大小:4.50 MB 运行环境:Win2003,WinXP,Win2000,Win9X 软件等级:★★★☆☆ 发布时间:2012-05-22 下载次数:
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Everyday Practical Electronics VOL.31. No.9 SEPTEMBER 2002电子书籍介绍
Everyday Practical Electronics VOL.31. No.9 SEPTEMBER 2002

During project construction, many hobbyists must
have wondered if the reason their masterpiece
wasn’t working was due to a faulty i.c., or if the i.c.
they’ve just removed from an old board actually
works. The project described here provides a simple
way to quickly test the operation of most TTL and
CMOS digital logic i.c.s.
A PIC16F877-20 microcontroller is used as the core
of the circuit and is interfaced to a PC-compatible
computer via an RS232 serial connection. Defined
logic levels are applied to the inputs of the device
under test and the results generated on the output
pins are compared against those that are expected.
The PC software has been written in Visual Basic 6
and should run on any Microsoft 32-bit operating
system, including Windows 98, ME, NT, 2000 and
XP. It is supplied with profiles for a selection of
common TTL and CMOS devices and other device
profiles can be added.

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