[STM32F4 DMA2D driver and screen rotation]

Hello. I'd like to use hardware acceleration in my project. In the gdisp_lld_STM32F429iDiscovery.c there is two functions: gdisp_lld_fill_area and gdisp_lld_blit_area. Does it support screen rotation?

[buffer between ugfx and lcd frame buffer]

Thank you.It is what i need.

[buffer between ugfx and lcd frame buffer]

Hello. Does ugfx has a mechanism for draw primitives,images etc not directly to lcd frame buffer? I'd like to create a vector image in ram,then send created image to the frame buffer.

[vector images zoom]

Hello. I'd like to draw a scheme on the screen by using of different functions like gdispDrawPixel,gdispDrawLine,gdispDrawCircle etc.

Does ugfx has scale function (coordinate transformation)? I need to scale created image on the screen.

[UGFX+ ecos os]

I use arm-eabi-gcc for compile. Is it ok? Is there a difference between arm-eabi-gcc and arm-none-eabi-gcc?

[UGFX+ ecos os]

Is it necessary to call cyg_scheduler_start before gfxInit ? I call gfxInit in cyg_user_start,but cyg_sheduler_start is called after that now.

void
cyg_start( void )
{
	CYG_REPORT_FUNCTION();
	CYG_REPORT_FUNCARGVOID();

	cyg_prestart();

	cyg_package_start();

	cyg_user_start();

#ifdef CYGPKG_KERNEL
	Cyg_Scheduler::start();
#endif


	CYG_REPORT_RETURN();
} // cyg_start()

When i try to call cyg_scheduler_start before gfxInit, the program doesn't reach gfxInit().

[UGFX+ ecos os]

For example, i am trying to run GWIN/slider example. Here is the code from main.c

#include "gfx.h"

static GListener	gl;
static GHandle		ghSlider1, ghSlider2, ghConsole;

static void createWidgets(void) {
	GWidgetInit	wi;

	// Apply some default values for GWIN
	gwinWidgetClearInit(&wi);
	wi.g.show = TRUE;

	// create Slider1
	wi.g.y = 10; wi.g.x = 10; wi.g.width = gdispGetWidth()-20; wi.g.height = 20; wi.text = "S1";
	ghSlider1 = gwinSliderCreate(0, &wi);

	// create Slider2
	wi.g.y = 40; wi.g.x = 10; wi.g.width = 20; wi.g.height = gdispGetHeight() - 50; wi.text = "S2";
	ghSlider2 = gwinSliderCreate(0, &wi);

	// Set slider 2 to return extended events
	gwinSliderSendExtendedEvents(ghSlider2, TRUE);

	// Some options to try
	//gwinSliderSetRange(ghSlider1, 0, 70000);
	//gwinSliderSetRange(ghSlider2, -4, 4);
	//gwinSliderSetRange(ghSlider1, 4, -4);

	// Console to display slider events
	wi.g.y = 40; wi.g.x = 40; wi.g.width = gdispGetWidth()-50; wi.g.height = gdispGetHeight()-50;
	ghConsole = gwinConsoleCreate(0, &wi.g);
}

void cyg_user_start(void){

	GEventGWinSlider *	pe;
	const char *		sAction;

	// Initialize the display
	gfxInit();

	// Set the widget defaults
	gwinSetDefaultFont(gdispOpenFont("UI2"));
	gwinSetDefaultStyle(&WhiteWidgetStyle, FALSE);
	gdispClear(White);

	// create the widget
	createWidgets();
	gwinSetColor(ghConsole, Green);
	gwinSetBgColor(ghConsole, White);
	gwinClear(ghConsole);

	// We want to listen for widget events
	geventListenerInit(&gl);
	gwinAttachListener(&gl);

	while(1) {
		// Get an Event (assume it is a slider event)
		pe = (GEventGWinSlider *)geventEventWait(&gl, TIME_INFINITE);

		switch(pe->type) {
			case GEVENT_GWIN_SLIDER:
				switch(pe->action) {
				case GSLIDER_EVENT_SET:		sAction = "SET";		break;
				case GSLIDER_EVENT_CANCEL:	sAction = "CANCEL";		break;
				case GSLIDER_EVENT_MOVE:	sAction = "MOVE";		break;
				case GSLIDER_EVENT_START:	sAction = "START";		break;
				default:					sAction = "????";		break;
				}
				gwinPrintf(ghConsole, "Slider %s = %d %s\n", gwinGetText(pe->gwin), pe->position, sAction);
				break;

			default:
				// Oops - not a slider event.
				break;
		}
	}
}

The program can't reach "switch(pe->type)" line. When i suspend debug session, i see, that an exception occured. For example, the program reach "cyg_posix_exception_handler" with exception number 3. I also noticed that exception occured on line 109 in file packages/kernel/current/src/sync/cnt_sem.cxx

        // Allow other threads to run
        Cyg_Scheduler::reschedule();

Maybe i should run ugfx from thread?

[UGFX+ ecos os]

Hello. I am trying to use ugfx with ecos os on custom board based on stm32f429 controller . I've tried to run examples from GDISP directory,and all works fine.

But when i try to run examples from GWIN an exception happends. I use my own touch driver, but the problem is not in it. Did anybody try to use ecos with ugfx?

[ugfx example for stm32f429 discovery board]

thanks to all

[ugfx example for stm32f429 discovery board]

And another question. I also have to download chibios to build examples? I have never worked with Os. Does a manual exists?

[ugfx example for stm32f429 discovery board]

Hi. I'd like to see how ugfx works on stm32f429 discovery board. But i can't find an example for keil ide. Does anybody help me?

[ECOS package,client/server mode]

Hi everyone! i can't understand,where can i find ecos package? And one more question,is it possible to work with ugfx in Client/Server Mode? i want to connect two arm platforms via spi interface (one client, another-server).