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Some low level for SD-CARD

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bsongis
2012-05-22 18:45:59 +00:00
parent b4a3f2038d
commit 28337362f9
1 changed files with 11 additions and 7 deletions
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src/ersky9x/diskio.cpp
+11 -7
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@@ -397,9 +397,12 @@ uint32_t sd_cmd7()
| HSMCI_CMDR_TRCMD_START_DATA | HSMCI_CMDR_TRDIR_READ \
| HSMCI_CMDR_TRTYP_SINGLE | HSMCI_CMDR_MAXLAT)
#define SD_WRITE_SINGLE_BLOCK (17 | HSMCI_CMDR_SPCMD_STD | HSMCI_CMDR_RSPTYP_48_BIT \
| HSMCI_CMDR_TRCMD_START_DATA | HSMCI_CMDR_TRDIR_READ \
| HSMCI_CMDR_TRTYP_SINGLE | HSMCI_CMDR_MAXLAT)
#define SD_WRITE_BLOCK (24| HSMCI_CMDR_SPCMD_STD \
| HSMCI_CMDR_RSPTYP_48_BIT \
| HSMCI_CMDR_TRCMD_START_DATA \
| HSMCI_CMDR_TRTYP_MULTIPLE \
| HSMCI_CMDR_TRDIR_READ \
| HSMCI_CMDR_MAXLAT)
// Get SCR
uint32_t sd_acmd51( uint32_t *presult )
@@ -624,10 +627,11 @@ uint32_t sd_write_block( uint32_t block_no, uint32_t *data )
// Block size = 512, nblocks = 1
phsmci->HSMCI_BLKR = ( ( 512 ) << 16 ) | 1 ;
phsmci->HSMCI_ARGR = block_no << 9 ;
phsmci->HSMCI_CMDR = SD_WRITE_SINGLE_BLOCK ;
#if 0
for ( i = 0 ; i < 50000 ; i += 1 )
phsmci->HSMCI_CMDR = SD_WRITE_BLOCK ;
for ( i = 0 ; i < 128 ; i += 1 )
{
#if 0
if ( phsmci->HSMCI_SR & HSMCI_SR_RXRDY )
{
*data++ = phsmci->HSMCI_RDR ;
@@ -641,8 +645,8 @@ uint32_t sd_write_block( uint32_t block_no, uint32_t *data )
{
break ;
}
}
#endif
}
return i | (j << 16) ; //phsmci->HSMCI_RSPR[0] ;
}
else