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Showing posts with label DS89C450. Show all posts
Showing posts with label DS89C450. Show all posts
Sunday, June 24, 2018

Calculator Processors

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Most of the microcontrollers and processors I have looked into using have been for my calculator projects. That's one of the main rea...
Tuesday, November 21, 2017

BCD Addition Speed Test: 6502 vs 8051

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12345.6789 + 9999.99999 packed BCD on 8051 A few years ago I decided to revisit the microcontroller comparison I had done to see how m...
Sunday, March 9, 2014

Microcontroller Showdown, Conclusion

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The last chip in the comparison is the Z16F2810 . When I started the tests I got a Loop overhead time of only 0.64, which made me think t...
Monday, March 3, 2014

Microcontroller Showdown, Part 4

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The next chip to test is the  AT89LP6440 . This is a single-cycle 8052 compatible like the  DS89C450 . It can run from an internal oscilla...
Monday, February 3, 2014

DS89C450 High-Baud Flashing

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As I mentioned in my last post , I have been using the DS89C450  lately to do some tests. It has a serial program loader in ROM used to pr...
Sunday, February 2, 2014

Microcontroller Showdown, Part 3

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The next chip I compared was the DS89C450 from Maxim. This is a single-cycle 8051 with clock speeds up to 33MHz. The other single-cycle 8...
Monday, September 30, 2013

Microcontroller Showdown, Part 1

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Recently I bought some LPC1114 microcontrollers from NXP. They come in DIP packages and feature an ARM Core M0. Although comparing the clo...