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In talking with a coworker, I realized that I'd used GUIDRV_LIN_OY_32 instead of GUIDRV_LIN_OSY_32 so fixing that rotated the image but it contained some garbage (photo - GUIDRV_LIN_OSY_32 with GUI_Init in ST startup code and DIALOG_Radio code). Looking through the startup section of the ST code I noticed that they did a GUI_Init so that they could put a startup message on the screen. Getting rid of the ST startup message results in the desired operation (photo - GUIDRV_LIN_OSY_32 with DIALOG_Ra…
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I'm in the process of evaluating a STM32F746G-DISCO board using the STemWin graphics package for a new product development and I have a similar question on rotation of the display for a portrait orientation. I've looked at the linked 'STemWin stm32F429 Disco Lcd rotation of 90 degrees' thread and post 18 from ierturk shows what I'm trying to accomplish. By changing the linked driver from GUIDRV_LIN_32 to GUIDRV_LIN_OSY_32 the image was rotated 90 degrees on the screen of the STM32F429 Discovery …