changes the orientation on the board

[mikkel nielsen]

i'm using a stm32f429 and i would like to now is it possible to turn the screen from vertical to horizontal.

[Tesla DeLorean]

If there is not a SWAP or ORIENTATION setting in your software, you can change the way you paint into your frame buffer.

[mikkel nielsen]

okay, where do i find the frame buffer?

[Tesla DeLorean]

STM32Cube_FW_F4_V1.21.0\Drivers\BSP\STM32F429I-Discovery\stm32f429i_discovery_lcd.h

/**

 * @brief LCD status structure definition

 */

#define MAX_LAYER_NUMBER      2

#define LCD_FRAME_BUFFER      ((uint32_t)0xD0000000)

#define BUFFER_OFFSET         ((uint32_t)0x50000)

STM32Cube_FW_F4_V1.21.0\Projects\STM32F429I-Discovery\Applications\STemWin\STemWin_HelloWorld\STemWin\Target\LCDConf_stm32f429i_disco_MB1075.c

/** @defgroup STEMWIN_LIBRARY_Private_Defines

* @{

*/

#undef LCD_SWAP_XY

#undef LCD_MIRROR_Y

#define LCD_SWAP_XY 1

#define LCD_MIRROR_Y 1

#define XSIZE_PHYS 240

#define YSIZE_PHYS 320

[mikkel nielsen]

thanks, but i am using eclipse and not stm32cube

[Tesla DeLorean]

Eclipse is an IDE, the code uses HAL. You'll need to look at what routines/libraries you are using to paint into the frame buffer and flip or mirror the axis being used.

If you're not using standard methods then you're going to need to be responsible for analyzing what you're using and how to adapt it to your needs.

[mikkel nielsen]

finally, the screen rotate, thanks, but now i have another question, i how now a blank area at the right side, that i not can use, do you know have i can use that area