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Atmega 1284 Reading ILI9341 GRAM
Thank you and also to Jean-Marc. I see his display has the pins exactly on the same position so it may be similar. Probably I am doing something wrong but I cannot see what...
Friday, 1 May 2020 - 11:07
Atmega 1284 Reading ILI9341 GRAM
david.prentice wrote:What do you intend to do?    Read the screen and save area as .BMP file on an SD ?   Yes, exactly this is want I want to do.
Thursday, 30 April 2020 - 16:50
Atmega 1284 Reading ILI9341 GRAM
Probably also these 34 pin displays are write-only too, it is just cheap stuff. Maybe somebody who knows this can confirm. Thank you!
Thursday, 30 April 2020 - 15:24
Atmega 1284 Reading ILI9341 GRAM
I have already checked the connection on RD pin even checked the signal going up and down with the oscilloscope. I do not know what is wrong here but reading doesn't work :(. The...
Thursday, 30 April 2020 - 11:31
Atmega 1284 Reading ILI9341 GRAM
I think there is no hardware problem in my project, all connections doubled checked and all signals checked with the oscilloscope. I have provided the pcb picture mostly FYI, I do...
Thursday, 30 April 2020 - 08:33
Atmega 1284 Reading ILI9341 GRAM
Yes I can write graphic on the display. That picture posted earlier is not the best but there is an RD pin, you can see better picture here  https://www.aliexpress....
Wednesday, 29 April 2020 - 19:58
Atmega 1284 Reading ILI9341 GRAM
I am not using Arduino. It is just a 1284 on a pcb I have made, powered at 3,3 volts. Probably the display is write-only, at least now I know there are such...
Wednesday, 29 April 2020 - 16:13
Atmega 1284 Reading ILI9341 GRAM
Hi David, Thank you for your reply. I am using 16 bit interface and I have already checked the library code and the datasheet so many time, it should be so easy indeed.  I...
Wednesday, 29 April 2020 - 15:15
Atmega 1284 Reading ILI9341 GRAM
Hi ki0bk, I know this and I do not intend to save the entire GRAM in the AVR's memory but only reading piece by piece and save them on SD card. I think I know how how to...
Wednesday, 29 April 2020 - 13:20
Fatfs on Atmega1284
Hi awneil, I have tested the reading function too and it works, now I can continue my COVID-19 quarantine project :)   All the best and stay safe! The attached picture as...
Wednesday, 15 April 2020 - 13:48
Fatfs on Atmega1284
Hi awneil, please accept the correction " ... read and maybe write data from/to SD card..."    I have read the information on the elm-chan website before but seems that...
Wednesday, 15 April 2020 - 12:54
Simple clock settings menu not working as expected
Hi, thank you. Sorry for all my stupid questions, maybe these are so simple things for you. Of course I know what is a flowchart, I have imagined all settings process only, didn't...
Wednesday, 20 September 2017 - 16:44

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