I'm trying to get some rough numbers about how much time is needed to render on the connected touch screen.
HW:
- Fusion for STM32 v8
- STM32F407ZGT MCU card
- TFT Board 4 Capacitive
- mikroSDK
- setup with Necto Designer
- refresh whole screen: 217ms
- press "small" button: 5ms
- press "big" button: 10ms
- Do these results agree with your experiences or am I measuring something incorrectly?
- The time it takes seems to be directly proportional to the number of written pixels - is the limiting factor the Intel8080 interface between MCU and TFT? Can this somehow be optimized by not using the MCU to driving the communication but using e.g. the FSMC module?
- Is the rendering code optimized for different platforms? E.g. on STM32 mcus with ChromeArt support does the vtft (or underlying) library make use of this hardware acceleration?
Sebastian