vivado硬件配置：勾选上SD0，SD1，FLASH和PS_UART
生成.bit，导入SDK，分别建硬件测试工程
1，EMMC裸机读写测试
方法：使用了 XILINX SDK 库函数实现读写，先往 EMMC 里面写 1024 个数据，然后读出来对比；
#include <stdio.h>
#include "xparameters.h"
#include "xil_exception.h"
#include "xsdps.h"
#include "xil_printf.h"
static XSdPs ps7_EMMC;
XSdPs_Config * EMMC_Config;
u8 WR_Buf[1024];
u8 RD_Buf[1024];
u8 Emmc_ExtCsd[1024];
int main()
{
u32 i;
s32 Status;
u32 Buffer_size=1024;
u8 SD_ERROR=0;
EMMC_Config= XSdPs_LookupConfig(XPAR_PS7_SD_1_DEVICE_ID);
Status = XSdPs_CfgInitialize(&ps7_EMMC, EMMC_Config, EMMC_Config->BaseAddress);
if (Status != XST_SUCCESS)
{
print("EMMC Config failed !\n\r");
return XST_FAILURE;
}
Status=XSdPs_MmcCardInitialize(&ps7_EMMC);
if (Status != XST_SUCCESS)
{
print("EMMC Config failed !\n\r");
return XST_FAILURE;
}
Status=XSdPs_Change_ClkFreq(&ps7_EMMC,50000000);
Status=XSdPs_Select_Card(&ps7_EMMC);
Status=XSdPs_SetBlkSize(&ps7_EMMC,XSDPS_BLK_SIZE_512_MASK);
Status=XSdPs_Get_Mmc_ExtCsd(&ps7_EMMC,Emmc_ExtCsd);
for(i=0;i<Buffer_size;i++)
{
WR_Buf[i]=i;
}
Status = XSdPs_WritePolled(&ps7_EMMC, 0x00, 2, WR_Buf);
Status = XSdPs_ReadPolled(&ps7_EMMC, 0x00, 2, RD_Buf);
//-----------------------check data-----------------------------------------------
for(i=0; i<Buffer_size;i++)
{
if(WR_Buf[i]!=RD_Buf[i])
{
SD_ERROR=1;
break;
}
}
if(SD_ERROR)
xil_printf("EMMC Data checked Error\r\n");
else
xil_printf("EMMC Data checked Successfully\r\n");
return 0;
}
2，SD卡裸机读写测试
实现了创建一个 text.txt 的文件，并且打开，只有往里面写 0~1023~共计 1024 个数据，之后再读这个文件，读出 1024 个数据，最后对比数据内容是否和写入的一致。用户可以可以直接复制以上程序到自己的工程使用。除此之外，要让自己新建的工程可以正常编译，还要设置 BSP 库：菜单栏Xilinx->Board Support Package Setting勾选 xilffs 库，以支持 SD 卡的裸机文件系统支持。
#include <stdio.h>
#include "xparameters.h"
#include "xsdps.h"
#include "xil_printf.h"
#include "ff.h"
static FATFS SD_Dev; // File System instance
char *SD_Path = "0:/"; // string pointer to the logical drive number
static char FileName[32] = "test.txt"; // name of the log
u8 WR_Buf[1024] __attribute__ ((aligned(32))); // Buffer should be word aligned (multiple of 4)
u8 RD_Buf[1024] __attribute__ ((aligned(32))); // Buffer should be word aligned (multiple of 4)
int SD_init()
{
FRESULT result;
result = f_mount(&SD_Dev,SD_Path, 0);
if (result != 0)
{
return XST_FAILURE;
}
return XST_SUCCESS;
}
int SD_read(char *FileName,u8 *DestinationAddress,u32 ByteLength)
{
FIL file;
FRESULT result;
UINT BytesRd;
result = f_open(&file,FileName,FA_READ);
if(result)
{
return XST_FAILURE;
}
result = f_lseek(&file, 0);
if(result)
{
return XST_FAILURE;
}
result = f_read(&file, (void*)DestinationAddress,ByteLength,&BytesRd);
if(result)
{
return XST_FAILURE;
}
result = f_close(&file);
if(result)
{
return XST_FAILURE;
}
return XST_SUCCESS;
}
int SD_write(char *FileName,u8 *SourceAddress,u32 ByteLength)
{
FIL file;
FRESULT result;
UINT BytesWr;
result = f_open(&file,FileName,FA_CREATE_ALWAYS | FA_WRITE);
if(result)
{
return XST_FAILURE;
}
result = f_lseek(&file, 0);
if(result)
{
return XST_FAILURE;
}
result = f_write(&file,(void*) SourceAddress,ByteLength,&BytesWr);
if(result)
{
return XST_FAILURE;
}
result = f_close(&file);
if(result)
{
return XST_FAILURE;
}
return XST_SUCCESS;
}
int main()
{
int i;
FRESULT result;
u8 SD_ERROR=0;
u32 Buffer_size=1024;
SD_init();
for(i=0;i<Buffer_size;i++)
{
WR_Buf[i]=i;
}
//-----------------------write test data to file-----------------------------------
result=SD_write(FileName, WR_Buf, Buffer_size);
if (result!=0)
{
return XST_FAILURE;
}
xil_printf("SD CARD written Successfully\r\n");
//-----------------------read test data ------------------------------------------
result=SD_read(FileName, RD_Buf, Buffer_size);
if (result!=0)
{
return XST_FAILURE;
}
xil_printf("SD CARD Data read Successfully\r\n");
//-----------------------check data-----------------------------------------------
for(i=0; i<Buffer_size;i++)
{
if(WR_Buf[i]!=RD_Buf[i])
{
SD_ERROR=1;
break;
}
}
if(SD_ERROR)
xil_printf("SD CARD Data checked Error\r\n");
else
xil_printf("SD CARD Data checked Successfully\r\n");
return 0;
}
3，FLASH读写测试
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <fcntl.h>
#include <time.h>
#include <sys/ioctl.h>
#include <sys/mount.h>
#include <linux/compiler.h>
#include <mtd/mtd-user.h>
struct BSL
{
char booslink[10]; //a fixed string idefined as booslink
//char serialNumber[24];
//++++add a Serial Number
//char PCBA_serialNumber[24];
//char reserved_0[24];
};
int non_region_erase(int Fd, int start, int count, int unlock)
{
mtd_info_t meminfo;
if (ioctl(Fd,MEMGETINFO,&meminfo) == 0)
{
erase_info_t erase;
erase.start = start;
erase.length = meminfo.erasesize;
for (; count > 0; count--) {
printf("\rPerforming Flash Erase of length %u at offset 0x%x",
erase.length, erase.start);
fflush(stdout);
if(unlock != 0)
{
//Unlock the sector first.
printf("\rPerforming Flash unlock at offset 0x%x",erase.start);
if(ioctl(Fd, MEMUNLOCK, &erase) != 0)
{
perror("\nMTD Unlock failure");
close(Fd);
return 8;
}
}
if (ioctl(Fd,MEMERASE,&erase) != 0)
{
perror("\nMTD Erase failure");
close(Fd);
return 8;
}
erase.start += meminfo.erasesize;
}
printf(" done\n");
}
return 0;
}
int main(int argc, char *argv[])
{
int fd;
char *cmd;
struct mtd_info_user info;
int regcount;
int ret;
int res;
if(3>argc)
{
printf("You must specify a device!\n");
return 16;
}
cmd=argv[1];
// Open the device
if ((fd = open(argv[2],O_RDWR)) < 0)
{
fprintf(stderr,"File open error\n");
return 8;
}
else
{
ioctl(fd,MEMGETINFO,&info);
//printf("info.size=%d\n info.erasesize=%d\n info.writesize=%d\n info.oobsize=%d\n",info.size,info.erasesize,info.writesize,info.oobsize);
}
if (ioctl(fd,MEMGETREGIONCOUNT,®count) == 0)
{
//printf("regcount=%d\n",regcount);
}
/*erase the device*/
if (strcmp(cmd, "erase") == 0)
{
if(regcount == 0)
{
res = non_region_erase(fd,0,(info.size/info.erasesize),0);
}
printf("erase!\n");
}
/*write file to this device*/
struct BSL *bsl_write =(struct BSL*)malloc(sizeof(struct BSL));
if (strcmp(cmd, "write") == 0)
{
printf("write ok!\n");
strcpy(bsl_write->booslink,argv[3]);
ret = write(fd, bsl_write, sizeof(struct BSL) );
return 0;
}
/*read file from this device*/
struct BSL *bsl_read =(struct BSL*)malloc(sizeof(struct BSL));
if (strcmp(cmd, "read") == 0)
{
read(fd, bsl_read, sizeof(struct BSL));
printf("%s\n", bsl_read);
printf("read ok!\n");
}
return 1;
}