[STemwin] ''hello world'' display in reverse

[johnnyilr]

Posted on May 14, 2014 at 10:03

hi,I'm learning how to use STemwin,so my 1st routine''hello world'' doesn't work well.

GUI_DispStringAt(''Hello World!'', 0, 0); shows all words in reverse

at top-right

,but all letters are correct.

 I set 

Config.Orientation =  GUI_MIRROR_X; (

LCD_X_Config in LCDConf_FlexColor_template.c

),

 if I set 

Config.Orientation = 0; all words show still at top-right and each letter is also in reverse.

I am really confused what happened, it seems the coordination (0,0) is set at top-right.  The display controllor is ILI9481,MCU is stm32F407, can somebody help me out?  Thanks in advance.

#stemwin

[rigomate2]

Posted on May 15, 2014 at 13:33

Well, I'd try not mirrorring the x orientation for a start.

Don't use GUI_MIRROR_X.

 

Cheers

[johnnyilr]

Posted on May 16, 2014 at 03:30

Thanks for reply, as I mentioned : if 

I set 

Config.Orientation = 0; all words show still at top-right and all letters are also in reverse.

It's really odd, and that's why I got confused :(

[rigomate2]

Posted on May 16, 2014 at 14:26

Oh, my bad!

I'll rethink it then, now that I did actually understand the problem :)

Edit, I assume you drive it, using SPI.

Have a look at the datasheet's page number 80:

http://www.ncsys.co.jp/webshop/GTV350MPZI04%28ILI9481%pdf

________________

Attachments :

www.ncsys.co.jpwebshopGTV350MPZI04_ILI9481_.bmp : https://st--c.eu10.content.force.com/sfc/dist/version/download/?oid=00Db0000000YtG6&ids=0680X000006I1Mz&d=%2Fa%2F0X0000000bm2%2FgvA_juGjwf6cWcQedpVWvzpWH2ljXR9k7gNxS1oDf0c&asPdf=false

[dav ABA]

Posted on December 26, 2016 at 18:38

hi. i work on emwin hello world.

my lcd controller is ILI9341

my code is

GUI_Init();

/* Activate the use of memory device feature */

WM_SetCreateFlags(WM_CF_MEMDEV);

MainTask();

but not anything is display on lcd.

please help me...

what is wrong ? how can i link emwin to my lcd functions ?

thank you...

[Imen.D]

Posted on December 26, 2016 at 18:52

Dear

abbasi.davoud

‌,

Are you enabled clock for CRC module ?

The CRC must be enabled before calling GUI_Init, if not STemWin will be not function

this is mentioned in the page 6 of AN4323 to call GUI_Init function prior to use any STemWin function or GUI routines: 'The CRC module (in RCC peripheral clock enable register) should be enabled before using the library.'

Are you following the

emwin

user manual aboutWM_SetCreateFlags (WM_CF_MEMDEV) ? which mentioned :

'The flag WM_CF_MEMDEV is frequently used to enable Memory Devices on all windows. Setting create flags is permitted before GUI_Init() is called. This causes the background window to be also affected by the create flags.

'

Best Regards

Imen

[dav ABA]

Posted on December 27, 2016 at 16:33

hi thank you ...i call              __HAL_RCC_CRC_CLK_ENABLE();     in first of codeand i call      WM_SetCreateFlags(WM_CF_MEMDEV); my code is :

HAL_Init(); SystemClock_Config(); __HAL_RCC_GPIOA_CLK_ENABLE(); __HAL_RCC_GPIOB_CLK_ENABLE(); __HAL_RCC_GPIOC_CLK_ENABLE(); __HAL_RCC_GPIOD_CLK_ENABLE(); __HAL_RCC_GPIOE_CLK_ENABLE(); __HAL_RCC_CRC_CLK_ENABLE(); WM_SetCreateFlags(WM_CF_MEMDEV); GUI_Init(); MainTask();

but nothing display on LCD ....what thing should i change for test ?

please help me ....