Clive Two.Zero,Actually, my problem was exactly same as Nickname16298's. BTW, can you please point me to any documentation that mentions how different SRAM blocks behave differently with respect to DMA? Especially if some SRAM is no no for DMA.
Hi Nickname16298,Did you find a solution to your problem? I have seen similar problem on my board; The problem did not go away when I disabled data cache.
I think I may have an explanation. If I try to do full duplex TX and RX, I can make the characters appear from keyboard to screen but I can't see them in SRAM. The re-initialization may be a workaround.
I am trying to use USART3 with TX and RX DMA (stream3 and stream1). I can set TX buffer as RX buffer and have the characters loop back; but they don't seem to "stick" in SRAM. What may be happening?
