UPGRADE YOUR BROWSER

We have detected your current browser version is not the latest one. Xilinx.com uses the latest web technologies to bring you the best online experience possible. Please upgrade to a Xilinx.com supported browser:Chrome, Firefox, Internet Explorer 11, Safari. Thank you!

cancel
Showing results for 
Search instead for 
Did you mean: 
Highlighted
Observer vijji148
Observer
1,307 Views
Registered: ‎07-06-2016

axi cdma with custom axi4 lite master Bram to DDR data transfer

Hi,

I am having custom axi4 lite master (tested fully). And created block design using custom axi4 lite master, axi cdma, Bram, MIG and other required peripherals (Kintex 7 FPGA is using).  Axi cdma has to read data from bram and transfer it to MIG. To transfer data from Bram to MIG I have written the following code ...

 

DWORD CDMA_BASEADDR = 0x44A00000;
DWORD data3,data4,data5,data6,data7,data8;
const int length = 4;
char * SrcAddr = (char *) 0xC0000000;  (Bram base addr)
char * DestAddr = (char *) 0x80000000; (MIG base addr)

// Single WriteDW
status = WriteDW(&board, (unsigned int)SrcAddr, 0x123);
if (status == XO_SUCCESS){
printf("Test Bram write Data : 0x%08x\n", status);
}
else{
printf("Test Bram write data failed : 0x%08x\n", status);
}
status = ReadDW(&board, (unsigned int)SrcAddr, &data3);
if(status == XO_SUCCESS){
printf("Test Sdram read Data : 0x%x\n", data3);
}
else{
printf("Test Sdram read data failed : %08x\n",status);
}

printf("Test destination address : 0x%x\n", (unsigned int)DestAddr);
// Set DMA control register Err_Irqen, IOC_Irqen and simple mode DMA
status = WriteDW(&board, CDMA_BASEADDR+0x0, 0x00005000);
status = ReadDW(&board, CDMA_BASEADDR+0x0, &data4);
printf("DMA control register :0x%08x = 0x%08x\n\r",CDMA_BASEADDR+0x0,data4);

status = ReadDW(&board, CDMA_BASEADDR+0x4, &data8);
printf("DMA status register :0x%08x = 0x%08x\n\r",CDMA_BASEADDR+0x4,data8);

// Read data from Bram
status = WriteDW(&board, CDMA_BASEADDR+0x18, (unsigned int)SrcAddr);
status = ReadDW(&board, CDMA_BASEADDR+0x18, &data5);
printf("DMA Source address register :0x%08x = 0x%08x\n\r",CDMA_BASEADDR+0x18,data5);

// Write data to MIG
status = WriteDW(&board, CDMA_BASEADDR+0x20, (unsigned int)DestAddr);
status = ReadDW(&board, CDMA_BASEADDR+0x20, &data6);
printf("DMA Destination address register :0x%08x = 0x%08x\n\r",CDMA_BASEADDR+0x20,data6);

// Set the byte length of DMA transfer
status = WriteDW(&board, CDMA_BASEADDR+0x28, length);
status = ReadDW(&board, CDMA_BASEADDR+0x28, &data7);
printf("DMA BTT register :0x%08x = 0x%08x\n\r",CDMA_BASEADDR+0x28,data7);

DWORD Data1;
// Single ReadDW
status = ReadDW(&board, (unsigned int)DestAddr, &Data1);
if(status == XO_SUCCESS){
printf("Test Sdram read Data : 0x%x\n", Data1);
}
else{
printf("Test Sdram read data failed : %08x\n",status);
}

 

Data is not transferring from Bram to MIG . Please help me to find the solution.

Any help would be appreciated.

 

Thanks & Regards,

Lakshmi

 

 

0 Kudos