74HCT688 DATASHEET PDF

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May 11, 5, 1, Yes, my password is: Nov 9, 2. Discussion in ‘ Embedded Systems and Microcontrollers ‘ started by beowulfNov 8, Nov 8, 1.

Then take as long as you like to decode. Quote of the day. Maybe this can solve my timing issue Nov 9, Do a subtraction with the character you want to test against, and check if the result is zero. Posted by new in forum: So it seems you’re looking at a stream of 20 character records with at least 50 usecs between the start of one character and the next Nov 10, Something to duplicate the function of 74HCT equality comparator.

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Where and how to simulate an equivalent circuit for Posted by selvac19 in forum: I wrote the equivalent in C tacked onto the end of a 74hcct688 I’m working on and compiled it. An Introduction to Programmable Logic Learn about a hardware-based approach to performing calculations, routing digital signals, and controlling embedded systems using programmable logic and FPGAs.

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Lol, why i didnt think of that the first time??? Your name or email address: Nov 9, 7. Posted by nurul mia in forum: In this case data is assumed to come in on PortD, and PortB. Electrical Engineers and Chocolatiers Have Created Something Delicious Engineers are applying a technique used in crude oil processing to 74hvt688 low-fat chocolate that actually tastes delicious.

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Yes, subtraction is the way to go. You May Also Like: Nov 9, 4. Use a ‘computed goto’ with destinations 1 for each of the possible 7-bit values. The contents of PortD are latched by an external strobe, which also causes an interrupt, or a flag that you can poll. Nov 9, 3. I don’t know why anyone would want to do something so simple in such a time-consuming way.

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Nov 9, 5. Nov 9, 8. Jun 6, 3, 5, How to convert c code to hex code for pic? No, create an account now. Now for my question, is there a faster way to dstasheet this routine?

You did not say which PIC you are using? I attached the datasheet of 74HCT Thus we have at least 20 instructions in this 20 uS slice of time.

If so, what duration for the output? Equality Comparator question Posted by onlylonely in forum: Oct 14, 1, The default is 4MHz. What is unstated in the problem is the data rate, which determines how long we have to process each incoming data chunk.