boot NIOS and FPGA from EPCS flash

When you generate the jic file you should have an output.jic and an output.map file created. Check the output.map file it will tell you the EPCS addresses of the sof and hex files. Make sure the hex file starts right after the sof file. So if the address range of the sof is 0x000 - 0xAAA, the the hex file should start with 0xAAB.

The EPCS is not directly addressable. You need to get a small boot loader program and load that into an embedded memory and set the embedded memory as the reset vector. Check out the wiki article http://www.alterawiki.com/wiki/epcs_bootloaders

As krasner suggested, you probably have the addresses wrong. See this article: https://www.altera.com/support/support-resources/knowledge-base/solutions/rd10132010_126.html

Thank for you all. It working now, i had to change to offset in RESET VECTOR.

Hi again,

int epcs_open(void)
{
   int ret_code;
   int i;
   fd = alt_flash_open_dev("/dev/epcq_controller_avl_mem");
	if (fd== NULL)
	{
		printf("** Can't open flash device **\n\n");
	}else
	{
		printf("\n<----> Running Flash Tests <---->\n\r");
		printf("-Testing flash info retrieval...");
		ret_code = alt_get_flash_info(fd, &regions, &number_of_regions);
		//ret_code =alt_epcq_controller_get_info(fd, &regions, &number_of_regions);
		if (ret_code)
		{
			printf( "\nERROR: function alt_get_flash_info failed. ret_code %d\n",ret_code);
			goto finished;
		}
		printf("\n\rThis is NIOSII Board Designed by flash Logic\n\r");
		printf("Flash name %s\n\r",fd->name);
		printf("This flash has %d erase regions\n\r", number_of_regions);
		for (i=0;i<number_of_regions;i++)
		{
			 printf("Start 0x%08x End 0x%08x Number of Blocks %3d Block Size 0x%08x\n\r",(regions+i)->offset,
			 (regions+i)->region_size+(regions+i)->offset,
			 (regions+i)->number_of_blocks,
			 (regions+i)->block_size);
		}
	}
		printf("passed.\n\r");
		printf("Exiting Flash Tests\n\r");
		finished:
		alt_flash_close_dev(fd);
	return ret_code;
}

int test_programming( alt_flash_fd* fd, int test_offset)
{
	int i;
	alt_u8 data_written;
	alt_u8 data_read;
	int ret_code = 0;
	int test_length = sizeof(data_written);
		for(i=0;i<sizeof(data_written);i++){
			data_written = i;
		    printf( "data_written= 0x%08x\n\r",i,data_written);
		}
		ret_code = alt_write_flash(fd, test_offset, data_written, test_length);
		if (!ret_code)
		{
			ret_code = alt_read_flash(fd, test_offset, data_read, test_length);
			if(!ret_code)
			{
				for(i=0;i<sizeof(data_read);i++)
					printf( "Flash+%d= 0x%08x\n\r",i,data_read);
			}
		}
		printf("*");
		if (ret_code)
		{
			printf( "\nERROR: function alt_write_flash failed. ret_code %d\n",
					ret_code);
			return ret_code;
		}
	return ret_code;
}

Hi all,

Maybe try

printf( "Flash+%d= 0x%08x\n\r",i,data_read);

Thank you Daixiwen for your answer.

You are using a serial flash so it can't be accessed with IOWR/IORD macros. You need to use the alt_write_flash / alt_read_flash functions.

Unfortunately, even with using theses functions, i have the same behavior.