Software Rendering?

Question

I'm looking at a new project that  may be using a STM32U375/385 family.

These MCUs have no graphics acceleration or DSI. The customer is looking at SPI for the display. (A small display, 240x320 with 16 bit graphics)

We've used Embedded Wizard on previous products, so would like to continue. Would a software renderer at the BSP level be able to support this family of MCUs?

Answer 1

Hi there,

it's great that you're considering using Embedded Wizard for your new project! For the STM32U375/385 family, while these MCUs lack dedicated graphics acceleration and display controller, you can still achieve good results using our software pixel driver.

Since you're already familiar with Embedded Wizard, I'd suggest leveraging an existing build environment for a similar STM32 MCU, such as the STM32F407, STM32F12 or STM32F413. These MCUs also rely on a software renderer and can be a good starting point. You can adapt the display integration for your STM32U375/385 target.

Since the display you're working with is a small 240x320 with 16-bit graphics, the processing power of the STM32U375/385 should be sufficient to handle it, though you'll need to be mindful of the software rendering performance and the usage of animations.

I hope this indicates a possible solution. Alternatively, let me refer to our Port & Verification services.

Best regards,

Manfred.

Comments

Sorry to bring this back up

My current projects use EW RGB888 with EW (I've been using it for production for a few years now.) This new one will be RGB565.

I have just got to the point where I have the SPI LCD driver working and wish to try a simple EW application.

The MCU is STM32U385 Nucleo Board - will the libraries in the Demo packages work? Which one do you recommend starting with?

(I have used EW with U599, F469 and F429. My plan is to just get a small app up and running on the nucleo board.