I'm working on STM32F746 Discovery try to use STemWin. I using cubeMX to gen code for cubeIDE. But i'm stuck, sprintf %f not working. It's return 0x00 and dot instead. For example char str[32];float a = 123.456;sprintf(str, "%f", a);the resultstr[0] ...

I'm working on STM32F746 discovery wtih STemWin(firmwere F7 1.15). I'm tested on both UART1 and UART6.It's work fine without DMA and it's also worked with interrupt too.When i try to run with DMA. Hardware not even send an output data(I'm checked wit...