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Dear Sirs, we use emWin 6.32.3 from KEIL. For memory management purposes we need to configure our external memory on our STM32F767 cpu to be of strongly ordered type. Doing this, 32bit accesses have to be on 32bit boundaries, 16bit accesses on 16bit boundaries and so on. However when emWin produces the first GUI item (a ListBox in our case), there is a HardFault. We traced into emWin Library in Disassembler Window and found out the following: With ListBox_Create there is also a call: Header_Crea…

Hello Florian, Thank you very much for this hint! I did a test and it worked very well. However there is one point left: For compatibility reasons we want to be able to link to older versions of emWin without change of our source code. The GUI_MAKE_COLOR() automatically checks GUI_USE_ARGB Flag an sets the colors correct. So we can change the library no problem. But in terms of dta files there is no automatic, this is done external. So in order to have the software working with either library I …

Hello Florian, unfortunately another problem occured due to GUI_USE_ARGB==1. With color constants GUI_MAKE_COLOR() macro swapps the colors accordingly, so all is fine. But we also have small icons for Buttons stored in *.dta files. They are loaded with BUTTON_SetStreamedBitmap() function. As there is no similar conversion like GUI_MAKE_COLOR macro the colors are wrong in the button. I tried to create first the bitmap with GUI_CreateBitmapFromStream() and thereafter apply it to the button with BU…

Hello Florian, Thank you so much indeed!! GUI_MAKE_COLOR did the trick! The software is more then ten years old, the color definitions were still without GUI_MAKE_COLOR... Thanks again for helping me Andreas

Hello, again a step further: we changed in LcdConf.c: #define COLOR_CONVERSION GUICC_M565 to: #define COLOR_CONVERSION GUICC_565 Colors in the main application are correct now. But unfortunateley we also use GUI_BMP_Serialize() for doing a screen shot. The bitmap created by this still shows the colors wrong. Somehow the GUI_BMP_Serialize() doesn´t take any notice from the setting of COLOR_CONVERSION in LcdConf.c? We would be happy for a workaround, so we can use the newer library best regards An…

Hello, meanwhile I found a possible reason: The new KEIL Library we are using was compiled with GUI_USE_ARGB = 1. The previous library was built with GUI_USE_ARGB = 0. I just don´t know why this was changed... best regards Andreas

Dear Sirs, In order to have a newer version we updated from emWin 6.30 to emWin 6.32 Thereafter the colors on our TFT where wrong. The blue changed to kind of brown. (see attached photos) WE DID NOT CHANGE A SINGLE LINE OF CODE! Just the replacement of emWin 6.30 to emWin 6.32 caused the fault. Here is the the Display driver we use: GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66720, GUIDRV_FLEXCOLOR_M16C1B16); If we turn off the cache it does not help. What can we do to use new…

Hello Sven, your comments are of great help thank you. Only a few points are left. You wrote: "Not sure why the hook function is not being called. Did you already replaced the multibuffering function by the cache functions?" Yes, at that time I did not replace the multibuffering function by the cache locking functions yet. I can see that the hook function works only down to the video frames, if some sort of memory buffering is involved, either multibuffering or cache. Is that correct? You wrote:…

Hello Sven, I solved my last issue regarding the animation of "emWin", "now", "supports", "!!!Movies!!!" a little. There is a memory device that holds the text (hMemText) and another one (hMemWork) which is always the destination for rotation instructions. The display works fine, if I always clean the working memory device (hMemWork) before it is repeatedly used in the loops: GUI_MEMDEV_Select(hMemWork); GUI_Clear(); GUI_MEMDEV_Select(0); Because this demo runs perfect on other hardware with GUI…

Hello Sven, Thank you for your reply indeed, I made some progress especially with LCD_ControlCache(LCD_CC_LOCK). But please let me explain first: I did some testing of the GUI_SetRefreshHook() function yesterday already, just to check how often it is called while the picture is drawn. However I encountered some strange behaviour... I am using the original SEGGER video demo file: MOVIE_ShowFeatures.c out of emwin/sample/tutorials. There are four videos, which are shown in this demo: 1) _acExplosi…

Hello, I just found the GUI_SetRefreshHook() function in the manual and will give it a try... Thanks Andy

Hello to all, I use emwin 6.10 together with a SSD1963 coupled via 16Bit interface. I use cached driver: GUIDRV_FlexColor_SetFunc(pDevice, &PortAPI, GUIDRV_FLEXCOLOR_F66720, GUIDRV_FLEXCOLOR_M16C1B16); The display workes fine as soon as it comes to videos. I tested the demo MOVIE_ShowFeatures.c out of emwin/sample/tutorials. The "explosion" scene shows tearing effects. I know the GUIDRV_FlexColor does not support multibuffering. But I think there must a possibilty to synchronize the output of em…

Hi Florian, GUI_GetKeyState() works perfect for me, I am glad the task could be solved so easy! Thank you very much Andy

Hello to all, I have a working VNC Client-Server connection. The display is shown fine on the PC. Now I want to have some key stroke events from the PC(client) sent to the unit(server). However our unit has no keyboard, but only three hardware buttons. I programmed all the menu switching and button handling by myself, years ago I just wasn´t aware that emWin offers a keyboard driver... So emWin in my my product is only for passive displaying something on the screen. All events are handled in my …

Hi Sven, The activation of the cache solved the problem, everything is fine now! Thank you very much indeed! By the way this cache enabling also solved this problem: Thread " GUI_BMP_Serialize() has Color Errors with emWin5.50 " Question: For me enabling a cache has got something to do with increased speed, why is the readback data in these cases so different if we do not use the cache? Have nice day Andy

Hi Florian, I used the Segger Client out of the toolbox: emVNC_V550_Install.exe Attached you find my GUI-Files. Thanky for your help Andy

Hi to all, we use emWin 5.50. When we tried the VNC-Server we found out that the screen on the PC is definitely not a true copy of the LCD on the target. There are false colors and lots of litter on the screen. Attached you see the pics of original and remote display. Any help would be much appreciated Andy

Hello Bart, unfortunately I got no solution from Segger so far. So I still manually link to emwin 5.36 to detour the problem. Thus I can´t benfit from the new versions other features.... Best reagrds Andy

Hi Sven, attached you find: a) your required files b) example of Screenshot correct with 5.36 und a faulty screenshot with 5.50 Unfortunately I am unable to provide you a demo example. What hardware should I use? My whole project would definitely not compile in your environment.... So the thing is very simple: The instruction GUI_BMP_Serialize() can not be configured with parameters. There is nothing I can do wrong on my side. The fault is perfectly reproduceable: 5.36: OK 5.50 not OK I would th…

Hello to all, We updated from 5.36 to 5.50 recently. In 5.36 the GUI_BMP_Serialize() instruction works fine. With 5.50 the colors of the resulting Bitmap are pretty faulty, they have way to much of green color. We downgraded the software to 5.36: Colors are correct again. What can we do to use the latest version? Best regards Andy