Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

DMA transaction between SDRAM and a UART

I would like to begin a DMA transaction between SDRAM and a UART on my Nios Development kit. This is the code: while(1) { IOWR_8DIRECT(DMA_BASE,1,SDRAM_BASE); // read address IOWR_8DIR...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
21 years ago

Marco,

Try using IOWR_32DIRECT instead of IOWR_8DIRECT - the DMA registers are aligned to 4-byte boundaries.