silicon chip project

[buzzawak]

July 2019 issue of Silicon chip in the Circuit Notebook section has a diagram for a 74LSxx series logic tester build around the DS89C430-MNL microprocessor.
This is my first foray into programming chips so on a steep learning curve.

The DS89C430-MNL is not a cheap chip and from my reading is pin and instruction set compatible with the older and much cheaper 80C52.
Am I demonstrating my total ignorance in thinking I can substitute the 80C52 and all will be fine?



 

 

[ledtester]

Do you have source code or just object code? If you have source there is a better chance you can account for any hardware differences between the two chips.

There are a lot of IC tester projects on the web, and you can make one with just an Arduino.

Both of these projects have an extensive test database:

https://www.instructables.com/id/Arduino-IC-Tester/
https://github.com/akshaybaweja/Smart-IC-Tester

For an historical perspective on IC testers, have a look at:

http://www.computernerdkev.heliohost.org/ictesters/index.htm

[buzzawak]

Hi Ledtester,

Yes, I do have the source code for it. Thanks, I will have a read of the links you kindly provided.

[ebclr]

If you are looking for the tester, not for fun to make, it's an easier patch available

https://www.aliexpress.com/wholesale?catId=0&initiative_id=SB_20191005105250&origin=y&SearchText=TL866II+&switch_new_app=y

[buzzawak]

Thanks, Ecdir
That's a nifty tool, the goal is fun of the build but I do like the XGecu TL866ii plus -p6

I collected a whole bunch of TTLs way back thinking they will come in handle one day.
I have decided to have a go at making an 8bit breadboard computer and what to do a tidy up on my inventory first.