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Forum Index : Microcontroller and PC projects : Touch not working
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MikeO Senior Member ![]() Joined: 11/09/2011 Location: AustraliaPosts: 275 |
Hi All, Just reaching out for some quick clues on a NO Touch problem. Have just put together a CGMicroboard with 7" SSD19 LCD . Display is all working OK, but not the touch. I can run and calibrate using the the touch routine OK but that's it Gui Test Touch routine gives me nothing. I am using pin 21 for interrupt and pin 18n for chip select. I have not started to do any fault finding yet just wondered if there were any clues in the fact that the calibrate is OK but no further. Cheers , thanks for any input. Codenquilts |
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paceman Guru ![]() Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Hmmm, there might be a common thread here with various setups and problems with GUI TEST TOUCH. I had a problem using a 28 pin uMite170, an ILI9341 and V5 of MMBasic with the following: OPTION LCDPANEL ILI9341,L,4,5,24 - the panel set up OK and the 'circles' test worked normally. The TOUCH set up OK as well and also the TOUCH CALIBRATION went normally, however the GUI TEST TOUCH also gave me nothing, i.e. no dot showed on the screen when it was touched with the pen. Since my panel had been set up upside-down anyway I DISABLED the panel and then set it up with OPTION LCDPANEL ILI9341,RL,4,5,24 - i.e. just changing the orientation to reverse landscape. After going through it all again, including the touch setup as before, the GUI TEST TOUCH now worked, i.e. the dot showed up under the pen. I haven't repeated all that to confirm it and it does seem a bit strange but try it, i.e. changing your screen orientation to reverse and see if you get something. Greg |
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matherp Guru ![]() Joined: 11/12/2012 Location: United KingdomPosts: 10406 |
What versions of the firmware? |
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paceman Guru ![]() Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
V5 for me Peter. Greg |
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MikeO Senior Member ![]() Joined: 11/09/2011 Location: AustraliaPosts: 275 |
I was using b37 on the plus. option list OPTION LCDPANEL SSD1963_7, RLANDSCAPE OPTION TOUCH 18, 21, 29 I have tried the reverse landscape which made no difference, the touch test still not working also the demonstration program will not work in touch but display is OK. I may try going backwards with the firmware in the morning. Mike Edit: Sorry, Gui Touch test was still OK but nothing after that. Codenquilts |
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MikeO Senior Member ![]() Joined: 11/09/2011 Location: AustraliaPosts: 275 |
OK all fixed now I had a hardware problem with the board header on the pcb for pin5 (T_DIN) so I guess there was no scanning. However I have noticed that the GUI CALIBRATE has an issue in that it does not matter where you tap! it still reports Calibrate as being OK, 4 taps in the same place will report as ok, it isn't of course, you have to enter in the 4 places for a correct calibration. Thanks Greg for your suggestion, was worth the check. Mike Codenquilts |
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Grogster![]() Admin Group ![]() Joined: 31/12/2012 Location: New ZealandPosts: 9643 |
Thanks for letting everyone know. ![]() I was watching this thread, but did not have any idea why it would not be working, and I have used the 7" parallel LCD's, and the touch always worked. As I had nothing to contribute, I did not post, but I am glad you got it sorted. Enjoy! I'll be watching to see what others say of the calibrate issue you seem to have found. Smoke makes things work. When the smoke gets out, it stops! |
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paceman Guru ![]() Joined: 07/10/2011 Location: AustraliaPosts: 1329 |
Well, I guessed since Mike had a valid reason for his GUI TEST TOUCH problem, I should check whether I could reproduce my problem with it. I couldn't - it worked fine on my configuration too (28pin uM2/170, ILI9341 2.4", MMBasic V5) using both the LANDSCAPE and RLANDSCAPE orientations. TOUCH and LCDPANEL were DISABLED between the two test sets - but only after forgetting to do so for each of them ![]() My apologies for any time you might have spent on this Peter (and Mike) - I don't know what stuffed things up the first time when my GUI TEST TOUCH didn't work but the possibilities are many! Greg |
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