Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. PRODUCTION DATA information is current as of publication. Details, datasheet, quote on part number: ADS The ADS, ADS, and the new ADS converters all are designed for specific touch screen. ADSE ti ADS, Touch Screen Controller. FEATURES. q 4-WIRE TOUCH SCREEN INTERFACE q RATIOMETRIC CONVERSION q SINGLE SUPPLY.

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ADS7843 Touch Screen Controller

I make my own I’ll also be sure and wait ms before reading the values. Or do I average the offsets of the center and corners and use that as the “overall” offset? Micro New Member Apr 10, Oh wow, that’s cool. I then check to see which dahasheet function I should use and if falls within a certain range I use the center offset that I have stored subtracts 40 and 30?

Do you use the uC’s builtin ADC to do this?

ADS Datasheet PDF – Texas Instruments

I found that the touch panel tilts slightly so linear calibration isn’t the best way to datashedt. The first thing you should be doing is displaying the raw data Readx and Ready Sorry for the multitude of questions, but once you have the offsets for the middle and corners do you average the collected offsets?


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ADS Datasheet(PDF) – Burr-Brown (TI)

It can sometimes be a little crooked as well You must log in or register to reply here. Potentiometer Questions Started by norbss Yesterday at I have tried to break it apart a bit and understand it: If I’m not mistaken, how it works is read the X and Y and using if statements check to see if it falls into a certain range and then use one of the map functions that contains an offset for the corresponding range?

The touch ads843 comes like this So I use the middle and then go to all four corners making four different maps.

This give the best results This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register. Even when it IS placed properly, this can happen.

Well, I’m stuck with this controller for now, heh.

Micro New Member Apr 9, I believe it is here: Forums New posts Search forums. Thanks for the response Ian I really appreciate it.

ADS7843 Datasheet

I’ll try working on it a bit more later today, but your response raised a few questions more questions: What I dafasheet is write datazheet value’s to the screen dead center so I can see Then touch everywhere and write down the figures. One other thing when you press the touch wait mS before you read x and y, the ads may do this for you, as the reading settles and changes position.


By continuing to use this site, you are consenting to our use of cookies. But to make the most of it I calibrate 4 parts instead of one I’m stuck trying to figure out this controller.

Replacing a 4 pin leaded inductor with a 2 pin Started by gkmaia Yesterday at Articles Top Articles Search resources. Datasheets, Manuals or Parts. Once you get those coordinates what exactly do you do with them?

I have 4 calibrations 5 point calibration If your touch panel doesn’t tilt you can get away with 3 points From the example I am working off of, I’m a bit confused as to when I actually get the X and the Y data and how it works. Replacement Transformer Started by ncag Today at 7: Click here to register now.

Media New media New comments Search media. To participate you need to register. I found some sample drivers in the GLCD and touch screen:

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