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Messages - Paul_B

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241
TFTs / Re: NHD-5.0-800480TF-ATXL#-T with the FT800 EVE GFX Engine
« on: December 04, 2014, 08:43:54 AM »
Hello,

PCLK is used to control panel refresh rate.
VSYNC is used to reset the LCD row pointer to top of the display.
HSYNC is used to reset the LCD column pointer to the edge of the display.

Regarding the PCLK, adjusting these values should not affect the H/VSync, H/V*-Porch values.


If you would like to learn more about LCD signal interface and timing parameters I highly recommend reading through this power-point:

Link:  http://www.nxp.com/wcm_documents/techzones/microcontrollers-techzone/Presentations/graphics.lcd.technologies.pdf


242
TFTs / Re: NHD-5.0-800480TF-ATXL#-T with the FT800 EVE GFX Engine
« on: December 02, 2014, 04:47:40 PM »
Hello,

Yes you can, however the values attached are verified to work.

Good luck!

243
TFTs / Re: NHD-5.0-800480TF-ATXL#-T with the FT800 EVE GFX Engine
« on: December 02, 2014, 12:08:31 PM »
Hello,

Iím sorry, unfortunately I am not familiar with the FT800 gfx engine. However, I am more then happy to help out with your timing issues!

To figure out the required timing parameters open up the NHD-5.0-800480TF-ATXL#-T datasheet (Page 6) or HX8264-D02 datasheet (Page 55)

Link: http://www.newhavendisplay.com/specs/NHD-5.0-800480TF-ATXL-T.pdf
Link: http://www.orientdisplay.com/pdf/HX8264-D02.pdf



The code snip-it below is an example of how your timing parameters should be set up on the NHD-5.0-800480TF-ATXL#-T display.

Code: [Select]
Linux Example:

display-timings {
+ native-mode = <&timing0>;
+ /* Settings for NHD-5.0-800480TF-ATXL#-T: */
+ timing0: 800x480 {
+ clock-frequency = <30000000>;
+ hactive         = <800>;
+ vactive         = <480>;
+ hback-porch     = <40>;
+ hfront-porch    = <40>;
+ hsync-len       = <48>;
+ vback-porch     = <29>;
+ vfront-porch    = <13>;
+ vsync-len       = <3>;
+ hsync-active = <0>;
+ vsync-active = <0>;
+ };


Hope this helps!










244
TFTs / Re: NHD-5.0-800480TFT-ATXI#CTP TOUCH problem
« on: December 01, 2014, 11:28:17 AM »
Hello,

The fact that your display is working correctly when you re-insert the capacitive touch cable leads me to believe it is a power up issue. If your CTP initialization and timing do not match what is listed on Page 11 in the FT5x06 datasheet, it will not be reliable.

Link: http://www.newhavendisplay.com/app_notes/FT5x06.pdf

If possible can you please verify with an oscilloscope.

Thanks!

245
TFTs / Re: NHD-5.0-800480TFT-ATXI#CTP TOUCH problem
« on: November 26, 2014, 04:24:03 PM »
Hello,

Can you please verify your timing, Page 11 in the FT5x06 datasheet.
Link:http://www.newhavendisplay.com/app_notes/FT5x06.pdf

The code snip-it below is a working example on how your CTP initialization should be set up.

Code: [Select]
void init_CTP()
{
        digitalWrite(WAKE, HIGH);
        delay(100);
        digitalWrite(INT, HIGH);
        delay(100);
        digitalWrite(WAKE, LOW);
        delay(200);
        digitalWrite(WAKE, HIGH);
        delay(200);
}

246
TFTs / Re: NHD-5.0-800480TFT-ATXI#CTP TOUCH problem
« on: November 25, 2014, 07:58:06 AM »
That is very strange, I have never heard of that issue before. Can you please provide the part number for the FFC connector on your board?

247
Character LCDs / Re: Plastic material flame rating
« on: October 10, 2014, 03:55:31 PM »
I'm sorry but we do not have this information available.

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