#include <stdio.h>
#include "system.h"
#include "altera_avalon_pio_regs.h"
//#inclede "altera_avalon_uart_regs.h"
#include "alt_types.h"
#include "altera_avalon_dma.h"
#include "sys/alt_irq.h"
void init_dma(void); //0x02121000 0x01000000
static void dma_interrupts(void* context,alt_u32 id)
{
alt_u32 div;
div=IORD(DMA_BASE,0X0);
if((div&0x1)!=0)
{
div=0;
}
}
void delay(void);
int main (void)
{
//FILE *uart=NULL;
unsigned int i;
unsigned char *tr_data,*wr_data;
tr_data=SDRAM_BASE; //SDRAM_BASE 0x01000000
wr_data=ONCHIP_RAM_64_KBYTES_BASE;//ONCHIP_RAM_64_KBYTES_BASE 0x02100000
for(i=0;i<1024;i++)
*(wr_data+i)=i;
//for(i=0;i<1024;i++)
// *(tr_data+i)='e';
delay();
init_dma();
while(1)
{
/*i=IORD(DMA_BASE,0X0);
if((i&0x1)!=0)
{
i=0;
} */
}
}
void delay(void)
{
int i;
for(i=0;i<1000;i++);
}
void init_dma(void)
{
alt_u32 context=0;
IOWR(DMA_BASE,0X0,0X00); //STATUS
IOWR(DMA_BASE,0X6,0x0);//control
IOWR(DMA_BASE,0X1,ONCHIP_RAM_64_KBYTES_BASE);//读主控端开始地址
IOWR(DMA_BASE,0X2,(ONCHIP_RAM_64_KBYTES_BASE+1024));//写主控端开始地址
IOWR(DMA_BASE,0X3,1024);
//0010011001
IOWR(DMA_BASE,0X6,0x099);//control
alt_irq_register(DMA_IRQ,context,dma_interrupts);
}
