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Now for my question, is there a faster way to implement this routine? Embedded Systems and Microcontrollers. You May Also Like: Apr 24, 7, 1, If so, what duration for the output?
When the strobe appears, copy this port to another file register take a “snapshot”. 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.
Posted by nurul mia in forum: Nov 9, 2. I wrote the equivalent in Datqsheet tacked onto the end of a program I’m working on and compiled it.
Do a subtraction with the character you want to test against, and check if the result is zero. If you have the PIC16F or I don’t know which other processors, you have a “parallel slave port” available.
Nov 9, 6. Maybe this can solve my timing issue In this datassheet data is assumed to come in on PortD, and PortB. Datassheet 14, Do you already have an account?
74HCT Datasheet(PDF) – NXP Semiconductors
Discussion in ‘ Embedded Systems and Microcontrollers ‘ started by beowulfNov 8, Nov 8, 1. Thus we have at least 20 instructions in this 20 uS slice of time. Jun 6, 3, 5, As for testing the incoming data, why do it bit by bit? Nov 9, 4.
Something to duplicate the function of 74HCT equality comparator. A separate active low output for each character? Yes, my password is: Nov 9, 8. What is unstated in the problem is the data rate, which determines how long we have to process each incoming data chunk.
Posted by new in forum: Where and how to simulate an equivalent circuit for Posted by selvac19 in forum: Feb 12, Your name or email address: What the Wileyfox Smartphone Gets Right A new player as a rogue smartphone has emerged in a competitive market: Nov 9, 5.
Oct 14, 1, Quote of the day. You did not say which PIC you are using?
How-to on PIC equivalent for equality comparator 74HCT688
If we make no assumptions about when this clock signal occurs during the valid portion meaning the hold time may be zero then we just have the clock time to read the data. Nov 10, datahseet How to convert c code to hex code for pic? The contents of PortD are latched by an external strobe, which also causes an interrupt, or a flag that you can poll.
Nov 9, 7. May 11, 5, 1, Use a ‘computed goto’ with destinations 1 for each of the possible 7-bit values.
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I attached the datasheet of 74HCT The dafasheet is 4MHz. Be careful crossing code page boundaries. Lol, why i didnt think of that the first time??? Thanks for the replies guys.
No, create an account now. Aug 21, 11 0.