//********************************************
unsigned int SD_CMD_Write(unsigned int CMDIndex,unsigned long CMDArg,unsigned int ResType,unsigned int CSLowRSV)//ResType:Response Type, send 1 for R1; send 2 for R1b; send 3 for R2.
{ //There are 7 steps need to do.(marked by [1]-[7])
unsigned int temp,Response,Response2,CRC,MaximumTimes;
Response2=0;
MaximumTimes=10;
CRC=0x0095;//0x0095 is only valid for CMD0
if (CMDIndex!=0) CRC=0x00ff;
sd_cse=0;//[1] CS Low
SD_2Byte_Write(((CMDIndex|0x0040)<<8)+(CMDArg>>24));//[2] Transmit Command_Index & 1st Byte of Command_Argument.
SD_2Byte_Write((CMDArg&0x00ffff00)>>8); //[2] 2nd & 3rd Byte of Command_Argument
SD_2Byte_Write(((CMDArg&0x000000ff)<<8)+CRC); //[2] 4th Byte of Command_Argument & CRC only for CMD0
sd_dao=1;//[3] Do High
//[3] Restore Do to High Level
for (temp=0;temp<8;temp++)//[4] Provide 8 extra clock after CMD
{
sd_clk=0;//CLK Low
Delay5us();
sd_clk=1;//CLK High
Delay5us();
}
switch (ResType)//[5] wait response
{
case 1://R1
{
do
Response=SD_Read();
while (Response==0xffff);
break;
}
case 2://R1b
{
do
Response=SD_Read();
while (Response==0xffff);//Read R1 firstly
do
Response2=SD_Read()-0xff00;
while (Response2!=0);//Wait until the Busy_Signal_Token is non-zero
break;
}
case 3: Response=SD_2Byte_Read();break;//R2
}
if (CSLowRSV==0) sd_cse=1;//[6] CS High (if the CMD has data block response CS should be kept low)
for (temp=0;temp<8;temp++)//[7] Provide 8 extra clock after card response
{
sd_clk=0;//CLK Low
Delay5us();
sd_clk=1;//CLK High
Delay5us();
}
return Response;
}
//}}}
//{{{
int8_t SD_ReadCached (uint8_t* buf, uint32_t blk_addr, uint16_t blocks) {
if (SD_present()) {
if ((blk_addr >= mReadCacheBlock) && (blk_addr + blocks <= mReadCacheBlock + mReadCacheSize)) {
mReadHits++;
memcpy (buf, mReadCache + ((blk_addr - mReadCacheBlock) * 512), blocks * 512);
}
else {
mReads++;
SD_Read (mReadCache, blk_addr, mReadCacheSize);
memcpy (buf, mReadCache, blocks * 512);
mReadCacheBlock = blk_addr;
}
if (blk_addr != mReadBlock + mReadMultipleLen) {
if (mReadMultipleLen) {
// flush pending multiple
//cLcd::debug ("rm:" + dec (mReadBlock) + "::" + dec (mReadMultipleLen));
mReadMultipleLen = 0;
}
mReadBlock = blk_addr;
}
mReadMultipleLen += blocks;
return 0;
}
return -1;
}
//********************************************
unsigned int Write_Single_Block(unsigned long int BlockAddress)
{
unsigned int temp,Response,MaximumTimes;
MaximumTimes=10;
if (BlockAddress>BlockNR) return 0xff20;//whether BlockAddress out of range?
for(temp=0;temp<MaximumTimes;temp++)
{
Response=SD_CMD_Write(24,BlockAddress,1,1);//Send CMD24
if (Response==0xff00)
temp=MaximumTimes;
}
for (temp=0;temp<8;temp++)//Provide 8 extra clock after CMD response
{
sd_clk=0;//CLK Low
Delay5us();
sd_clk=1;//CLK High
Delay5us();
}
SD_Write(0x00fe);//Send Start Block Token
//这里为了使只有512byte的单片机能够读写SD卡，特意节省了RAM的使用量，每次读写只有两个重复的128byte
//如果您使用的单片机拥有1K以上的RAM请将"%128"去掉
for (temp=0;temp<256;temp++) SD_2Byte_Write(WriteBuffer[temp%128]);//Data Block
SD_2Byte_Write(0xffff);//Send 2 Bytes CRC
Response=SD_Read();
while (SD_Read()!=0xffff) {;}
sd_cse=1;//CS_High()
for (temp=0;temp<8;temp++)//Provide 8 extra clock after data response
{
sd_clk=0;//CLK Low
Delay5us();
sd_clk=1;//CLK High
Delay5us();
}
return Response;
}
DRESULT disk_read (
BYTE pdrv, /* Physical drive number (0..) */
BYTE *buff, /* Data buffer to store read data */
DWORD sector, /* Sector address (LBA) */
UINT count /* Number of sectors to read (1..128) */
)
{
DRESULT ret;
outpw(REG_SDH_GCTL, SDH_GCTL_SDEN_Msk);
//sysprintf("disk_read - drv:%d, sec:%d, cnt:%d, buff:0x%x\n", pdrv, sector, count, (UINT32)buff);
if (!((UINT32)buff & 0x80000000))
{
/* Disk read buffer is not non-cachable buffer. Use my non-cachable to do disk read. */
if (count * 512 > _MAX_SS)
return RES_ERROR;
fatfs_win_buff = (BYTE *)((unsigned int)fatfs_win_buff_pool | 0x80000000);
if (pdrv == DRV_SD0)
ret = (DRESULT) SD_Read(SD_PORT0, fatfs_win_buff, sector, count);
else if (pdrv == DRV_SD1)
ret = (DRESULT) SD_Read(SD_PORT1, fatfs_win_buff, sector, count);
else
return RES_ERROR;
memcpy(buff, fatfs_win_buff, count * 512);
}
else
{
if (pdrv == DRV_SD0)
ret = (DRESULT) SD_Read(SD_PORT0, buff, sector, count);
else if (pdrv == DRV_SD1)
ret = (DRESULT) SD_Read(SD_PORT1, buff, sector, count);
else
return RES_ERROR;
}
return ret;
}
//------------------------------------------------------------------------------
//! \brief Reads a specified amount of data from a SDCARD memory
//! \param media Pointer to a Media instance
//! \param address Address of the data to read
//! \param data Pointer to the buffer in which to store the retrieved
//! data
//! \param length Length of the buffer
//! \param callback Optional pointer to a callback function to invoke when
//! the operation is finished
//! \param argument Optional pointer to an argument for the callback
//! \return Operation result code
//------------------------------------------------------------------------------
static unsigned char MEDSdusb_Read(Media *media,
unsigned int address,
void *data,
unsigned int length,
MediaCallback callback,
void *argument)
{
MEDTransfer * pXfr;
unsigned char error;
TRACE_INFO_WP("SDuRd(%d,%d) ", (int)address, (int)length);
// Check that the media is ready
if (media->state != MED_STATE_READY) {
TRACE_INFO("MEDSdusb_Read: Busy\n\r");
return MED_STATUS_BUSY;
}
// Check that the data to read is not too big
if ((length + address) > media->size) {
TRACE_WARNING("MEDSdusb_Read: Data too big: %d, %d\n\r",
(int)length, (int)address);
return MED_STATUS_ERROR;
}
// Enter Busy state
media->state = MED_STATE_BUSY;
// Start media transfer
pXfr = &media->transfer;
pXfr->data = data;
pXfr->address = address;
pXfr->length = length;
pXfr->callback = callback;
pXfr->argument = argument;
error = SD_Read((SdCard*)media->interface,
address,
data,
length,
SdMmcCallback,
media);
return (error ? MED_STATUS_ERROR : MED_STATUS_SUCCESS);
}
static uint32_t handle_cmd_read_pages(uint32_t cmd, uint32_t *mailbox)
{
union read_pages_mailbox *mbx = (union read_pages_mailbox*)mailbox;
uint32_t offset = mbx->in.offset;
uint32_t length = mbx->in.length;
assert(cmd == APPLET_CMD_READ_PAGES);
if (!initialized) {
trace_error_wp("Applet not initialized\r\n");
return APPLET_FAIL;
}
/* check that requested size does not overflow buffer */
if ((length * BLOCK_SIZE) > buffer_size) {
trace_error_wp("Buffer overflow\r\n");
return APPLET_FAIL;
}
/* check that requested offset/size does not overflow memory */
if (offset + length > mem_size) {
trace_error_wp("Memory overflow\r\n");
return APPLET_FAIL;
}
if (SD_Read(&lib, offset, buffer, length, NULL, NULL) != SDMMC_OK) {
trace_info_wp("Error while reading %u bytes at offset 0x%08x\r\n",
(unsigned)(mbx->in.length * BLOCK_SIZE),
(unsigned)(mbx->in.offset * BLOCK_SIZE));
mbx->out.pages_read = 0;
return APPLET_READ_FAIL;
}
trace_info_wp("Read %u bytes at offset 0x%08x\r\n",
(unsigned)(mbx->in.length * BLOCK_SIZE),
(unsigned)(mbx->in.offset * BLOCK_SIZE));
mbx->out.pages_read = mbx->in.length;
return APPLET_SUCCESS;
}
//********************************************
unsigned int Read_Single_Block(unsigned long int BlockAddress)
{
unsigned int temp,Response,MaximumTimes;
MaximumTimes=10;
if (BlockAddress>BlockNR) return 0xff20;//whether BlockAddress out of range?
for(temp=0;temp<MaximumTimes;temp++)
{
Response=SD_CMD_Write(17,BlockAddress,1,1);//Send CMD17
if (Response==0xff00)
temp=MaximumTimes;
}
while (SD_Read()!=0xfffe) {;}
//这里为了使只有512byte的单片机能够读写SD卡，特意节省了RAM的使用量，每次读写只有两个重复的128byte
//如果您使用的单片机拥有1K以上的RAM请将"%128"去掉
for (temp=0;temp<256;temp++) ReadBuffer[temp%128]=SD_2Byte_Read();//Get the readed data
for (temp=0;temp<16;temp++)//Provide 16 clock to remove the last 2 bytes of data response (CRC)
{
sd_clk=0;//CLK Low
Delay5us();
sd_clk=1;//CLK High
Delay5us();
}
sd_cse=1;//CS_High()
for (temp=0;temp<8;temp++)//Provide 8 extra clock after data response
{
sd_clk=0;//CLK Low
Delay5us();
sd_clk=1;//CLK High
Delay5us();
}
return Response;
}
void set_env_funcptrs(void)
{
#ifdef CONFIG_SOC_HAYDN
env_init = serialflash_env_init ;
saveenv = serialflash_saveenv ;
env_get_char_spec = serialflash_env_get_char_spec ;
env_relocate_spec = serialflash_env_relocate_spec ;
#elif (defined(CONFIG_SOC_MOZART) || defined(CONFIG_SOC_BEETHOVEN))
unsigned long val = inl(BOOTING_DEVICE_INFO);
int sdbootSucess = 0 ;
#ifdef CONFIG_CMD_MMC
if(val == SYSCTRL_DATA_IN_SD && SD_Card_Detect(0)) {
printf( " Boot Storage : SD Card\n" ) ;
gd->env_valid = 0 ;//We always use default envs when booting from SD.
env_init = sd_env_init ;
saveenv = sd_saveenv ;
env_get_char_spec = sd_env_get_char_spec ;
env_relocate_spec = sd_env_relocate_spec ;
//check if real sd boot
if(SD_Read(MAGIC_SD_ADDR, MAGIC_DATA_SIZE, MAGIC_DRAM_ADDR) != 0) {
printf("[ERR] SD-Read fails!\n") ;
sdbootSucess = 0 ;
goto SDBOOT_FAIL;
}
if((v_inl(MAGIC_DRAM_ADDR) != MAGIC_NUM0) || (v_inl(MAGIC_DRAM_ADDR+4) != MAGIC_NUM1)) {
printf(" !! MAGIC# of SD Card is wrong\n") ;
printf(" !! Find other Boot Storage..\n\n") ;
sdbootSucess = 0 ;
goto SDBOOT_FAIL ;
}
printf(" SD Card has correct Magic#.\n") ;
printf(" SD Boot Sucessfully.\n\n") ;
update_default_envs_ifsdboot() ;
sdbootSucess = 1 ;
#ifdef SDAUTOBURN_FLOW_FROMSD
printf(" ****** Auto Burn Flow ******\n") ;
printf(" Step 1. Copy data(size 0x%08x) from 0x%08x of SD to 0x%08x of DRAM\n", AUTOBURN_DATASIZE, AUTOBURN_SDADDR, AUTOBURN_DRAMADDR) ;
SD_Read(AUTOBURN_SDADDR, AUTOBURN_DATASIZE, AUTOBURN_DRAMADDR) ;
if(AUTOBURN_FLASHTYPE == AUTOBURN_SPIFLASH) {
printf(" Step 2. Write data from 0x%08x of DRAM to 0x%08x of SPI FLASH\n", AUTOBURN_DRAMADDR, AUTOBURN_FLASHADDR) ;
autoburn_sf = spi_flash_probe(0, 0, CONFIG_SF_DEFAULT_SPEED, CONFIG_DEFAULT_SPI_MODE);
spi_flash_erase(autoburn_sf, AUTOBURN_FLASHADDR, AUTOBURN_DATASIZE, 0) ;
spi_flash_write(autoburn_sf, AUTOBURN_FLASHADDR, AUTOBURN_DATASIZE, AUTOBURN_DRAMADDR, 0) ;
printf(" Done\n") ;
outl(0xFFF, 0x49000004);
}
else if(AUTOBURN_FLASHTYPE == AUTOBURN_NANDFLASH)
{
printf(" Step 3. Write data from 0x%08x of DRAM to 0x%08x of NAND FLASH\n", AUTOBURN_DRAMADDR, AUTOBURN_FLASHADDR) ;
nand_info_t *mtd ;
mtd = &nand_info[0] ;
nand_erase_options_t opts;
memset(&opts, 0, sizeof(opts));
opts.offset = AUTOBURN_FLASHADDR;
opts.length = AUTOBURN_DATASIZE;
//opts.jffs2 = clean;
opts.jffs2 = 0;//[patch] we do not allow jffs2 in our u-boot
opts.quiet = 0;
opts.all = 1 ;
unsigned long datasize = AUTOBURN_DATASIZE ;
nand_erase_opts(mtd, &opts) ;
//printf("chipsize=%d, blocksize=%d, block#=%d\n", mtd->totalsize, mtd->erasesize, (mtd->totalsize / mtd->erasesize)) ;
nand_write_skip_bad(mtd, AUTOBURN_FLASHADDR, &datasize, AUTOBURN_DRAMADDR) ;//100 temporary
}
#endif //SDAUTOBURN_FLOW_FROMSD
}
if(sdbootSucess)
return ;
#endif //CONFIG_CMD_SD
SDBOOT_FAIL:
if ( val == SYSCTRL_DATA_IN_SERIALFLASH) {
printf( " Boot Storage : Serial Flash\n" ) ;
env_init = serialflash_env_init ;
saveenv = serialflash_saveenv ;
env_get_char_spec = serialflash_env_get_char_spec ;
env_relocate_spec = serialflash_env_relocate_spec ;
}
#if defined(CONFIG_CMD_NAND)
else if ( val == SYSCTRL_DATA_IN_NANDFLASH) {
update_default_envs_ifnfboot() ;
printf( " Boot Storage : Nand Flash\n" ) ;
env_init = nand_env_init ;
saveenv = nand_saveenv ;
env_get_char_spec = nand_env_get_char_spec ;
env_relocate_spec = nand_env_relocate_spec ;
}
#endif
#endif //CONFIG_SOC_MOZART
}
/*******************************************************************************
* Function Name : main
* Description : Main program
* Input : None
* Output : None
* Return : None
*******************************************************************************/
int main(void)
{
/* NVIC configuration */
NVIC_Configuration();
initialisation();
/* Initialisation of SD Card and creation of File */
SD_Init();
/* Blinkmuster laden */
if( SD_Start("muster.txt", FA_OPEN_EXISTING | FA_READ) )
{
SD_Read(&muster,1);
}
SD_Close();
/* LCD Initialisieren */
GLCD_Init();
GLCD_Clear(White);
GLCD_SetTextColor(Red);
GLCD_DisplayString(1, 1, 1, "Write to SD-Card");
GLCD_DisplayString(8, 1, 1, "Press User to stop");
GLCD_DisplayString(4, 1, 1, "Fit Card into Slot");
/* Wait until SD Card is in Slot */
while(!(SD_Start("time.txt", FA_CREATE_ALWAYS | FA_WRITE)))
{
}
length=sprintf (buffer, "runtime: %d:%d:%d ", hour, min, sek);
GLCD_DisplayString(4, 1, 1, buffer);
/*****************************
* ENDE INITIALISIERUNG *
******************************/
GPIO_ResetBits(GPIOE,GPIO_Pin_All); // LED off all pins
while(1)
{
// BFH_GLCD_UDP();
/* Alle 10ms wird das tickFlag gesetzt */
if(tickFlag)
{
tickFlag=0; // reset tickFlag
if(write > 1)
{
/* Jede Sekunde einen Stamp ins File schreiben */
if((write%1000) == 0)
{
/* Zeit hochzählen */
sek++;
if(sek==60)
{
sek=0;
min++;
}
if(min==60)
{
min=0;
hour++;
}
if(hour==24)
{
hour=0;
}
/* write time to Diaplay */
length=sprintf (buffer, "runtime: %d:%d:%d ", hour, min, sek);
GLCD_DisplayString(4, 1, 1, buffer);
/* write time to card */
length=sprintf (buffer, "runtime: %d:%d:%d\ttext\r\n", hour, min, sek);
SD_Write(buffer,length);
/* switch LED */
GPIOE->ODR ^= muster << 8;
}
write += 10;
}
/* Close SD Card */
else if (write == 1)
{
SD_Close();
write--;
}
/* Schreiben beendet -> LED löschen */
else
{
GPIOE->ODR |= muster << 8;
GLCD_DisplayString(8, 1, 1, "Application stopped");
}
}
/* Wenn Taste gedrückt wird, schreiben beenden */
if((GPIOB->IDR&0x0080) == 0)
{
write = 1;
}
}
}