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Altera_Forum's avatar
Altera_Forum
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16 years ago

problem of DMA(Momery to memory)

#include"system.h"# include<stdio.h># include"altera_avalon_dma_regs.h"# include"altera_avalon_pio_regs.h"# include"alt_types.h" alt_u8 tab[8]={'a','b','c','d','e','f','g','h'},des[8]; alt_u32 f...
Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

yes,i have data cache.if i amend the code like this:

if(0X01&IORD_ALTERA_AVALON_DMA_STATUS(DMA_BASE))

{

IOWR_ALTERA_AVALON_PIO_DATA(PIO_BASE,tab[1]);

}

the IO is working.

thanks.