2019-06-23 09:51 AM
I'm using the stm32f769i-disco1. Which has 2 mB of flash memory.
https://www.st.com/en/evaluation-tools/32f769idiscovery.html
I'm creating a very simply application that's drawing circles and squares and some text, so it's not using most of the flash. Could i use the remanding flash to create a frame buffer for the display.
The only thing related to this idea is using external flash as framebuffer.
https://github.com/ProjectsByJRP/QSPI_Flash_to_LCD
If i need to, i'm fine with rendering partial display's in ram and writing them out to flash. I'm just trying to avoid having extra chips.
2019-06-23 12:03 PM
How hard would it be to just try?
2019-06-25 04:51 AM
I tried it with this example of creating a h file from a image.
Example on page 77.
But i found out that flash is extremely slow to write to and has around 10,000 write cycles, so it would be a bad choice for a frame buffer the way i was going to use it.