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aespinosa
aespinosa
Visitor II
May 16, 2014
Question

STemWin VS emWin

  • May 16, 2014
  • 6 replies
  • 1717 views
Posted on May 16, 2014 at 10:10

Hi,

we want to use STemWin v5.22 in the development of a GUI application with a LCD controlled by Ultrachip UC1698G, but the only driver available display drivers seem to be GUIDRV_FlexColor and GUIDRV_Lin, as stated in

http://www.st.com/web/catalog/tools/FM147/CL1794/SC961/SS1743/PF259225

.

However, the user guide pdf included in the package under Libraries\STemWinLibrary522\Documentation makes reference to the driver GUIDRV_UC1698G just added in v5.22 according to the release notes in page 3. But this seems to be the Segger emWin (not ST) user guide, am I right?

This would explain also why we get an undefined symbol error at linkage when calling the library function GUI_TTF_CreateFont() in order to import a TTF font. This is also seemingly unsupported in the ST licensed version of the library, isn't it?

Thank you for any info you can provide to clarify this confusion!

Regards,

Alfonso.

#stemwin #gui #uc1698 #display
This topic has been closed for replies.

6 replies

Montassar BEN ROMDHANE_O
Montassar BEN ROMDHANE_O
Visitor II
June 9, 2014
Posted on June 09, 2014 at 15:02

Hi Alfonso,

You can't use the GUI_TTF_CreateFont() API since it is not available in the STemWin 5.22, but rather in the STemWin 5.24 which will be available starting from STM32CubeF4 V1.2.0 release planned early July.

With regards.

bashir
bashir
Associate
February 2, 2015
Posted on February 02, 2015 at 16:01

Hi,

I am new to STemWin and evaluating using STM32F429I-DISCO.

I also want to evaluate the API GUI_TTF_CreateFont() but the linker is erroring with

''no definition'' for GUI_TTF_CreateFont.

I am using STM32Cube_FW_F4_V1.4.0 and IAR as my build environment.

Please can someone clarify if the API is supported?

Thank you.

Montassar BEN ROMDHANE_O
Montassar BEN ROMDHANE_O
Visitor II
February 2, 2015
Posted on February 02, 2015 at 16:58

Hi,

Please create a new forum post to add your STemWin request, so that our support team can deal with it separetly.

With regards,

Heisenberg.

s239955_stm1
s239955_stm1
Associate
March 31, 2015
Posted on March 31, 2015 at 09:23

Hi.

Today I switch from STemWin-library based on version 5.22 to 5.26 (comes up with stm32f4cube-bundle).

The problem is always the same. Linker can not find GUI_TTF API-functions althought

http://dict.leo.org/ende/index_de.html#/search=although%26searchLoc=0%26resultOrder=basic%26multiwordShowSingle=on

it is still specified in ST-documentation.

Is there any statement from ST?

rildank
rildank
Associate
September 17, 2015
Posted on September 17, 2015 at 10:43

Hello, 

In our project, we also need to use the GUI_TTF APIs, but using STM32Cube 1.8 with STemWin 5.28, it appears that the functions are still not defined. 

Any news from ST ? 

Thanks

Nickname5522_O
Nickname5522_O
Visitor II
November 6, 2015
Posted on November 06, 2015 at 10:59

Hi dank.ril,

 GUI_TTF APIs are available since version 5.24.If you aim to use them, you have to add FreeType font library to your StemWin application as indicated in the section 11.3.5 of the user guide

https://www.segger.com/downloads/emwin

.

-Shahrzad-
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