Search found 30 matches

by diger67
Sun Mar 12, 2017 10:25 am
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

The problem with the stabilization of the read readings when touching the touchscreen was decided. Below, you can see how this is done. void Sort (uint16_t *mas) { uint8_t i,j; uint16_t k; for(i=1;i<10;i++) for(j=0;j<9;j++) if(mas[i]>mas[j]) { k=mas[i]; mas[i]=mas[j]; mas[j]=k; } } //---------------...
by diger67
Fri Mar 10, 2017 1:30 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Unfortunately, it is no value for non-russian speaking community... The text of the code is written in C #. Comments are duplicated in English. I think those who are familiar with programming, he will understand what's what. Wrote the functions for the "slider" element. But I ran into a problem. Th...
by diger67
Tue Mar 07, 2017 6:28 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Create three new interactive elements. Textbox, checkbox, text. And their work with a touchscreen.
https://youtu.be/U4Ci-gbDWQM
by diger67
Sun Feb 26, 2017 7:22 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Continuation of work, we connect all of the material into a single project. Start with a small, very simple, button.

https://vk.com/away.php?to=https%3A%2F% ... 656325_526
by diger67
Mon Feb 13, 2017 8:46 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Disregard of TFT and consider working with xpt2046.

https://youtu.be/oAnAdO2NUCQ
by diger67
Sat Feb 04, 2017 3:24 am
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Problem with failures when outputting the image removed. It was a bad connector contact RD signal. But this led to a positive result, the code has been optimized so that these failures have little effect on the program.
by diger67
Mon Jan 30, 2017 2:44 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

The project continues to develop on the basis of stm32f429. Writing a function to display the sprite on any background (virtual Layer). Now to deal with the QSPI and record it using information STLink. After that I will carry it on stm32f446. It will also write a function to work with the 29 series ...
by diger67
Tue Jan 24, 2017 9:51 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

In this document you emulation describes an example LTDC. I solve the problem of using a TFT controller. Besides, all I do is true for the above example.
by diger67
Tue Jan 24, 2017 2:17 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

Replacing the external memory has given result. The image is output stably without distortion. Came stm32f446, will be connected by 25Qxxx on QSPI and transfer to all arrays of constants. The next step in the transient stm32f746.
by diger67
Fri Jan 20, 2017 7:05 pm
Forum: Projects
Topic: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA
Replies: 24
Views: 2799

Re: stm32f429 SRAM + ext SRAM + TFT 16bit with DMA

So you actually use 16 bit bus for data and another 8 bit for control signals, right? I think you need two different DMAs for this. How do you synchronize the two DMAs? Triggered by the same counter? According to the DMA transferred data only, write to the control register is a function of the type...