Atmel Xplained Pro Evaluation Kit ATSAM4E-XPRO ATSAM4E-XPRO Ficha De Dados
Códigos do produto
ATSAM4E-XPRO
1115
SAM4E [DATASHEET]
Atmel-11157D-ATARM-SAM4E16-SAM4E8-Datasheet_12-Jun-14
Figure 41-10. Multiple Write Functional Flow Diagram
Note:
1.
It is assumed that this command has been correctly sent (see
).
Send SELECT/DESELECT_CARD
command
(1)
to select the card
Send SET_BLOCKLEN command
(1)
Set the PDCMODE bit
HSMCI_MR |= PDCMODE
Set the block length
HSMCI_BLKR |= (BlockLength << 16)
HSMCI_MR |= PDCMODE
Set the block length
HSMCI_BLKR |= (BlockLength << 16)
Configure the PDC channel
HSMCI_TPR = Data Buffer Address
HSMCI_TCR = BlockLength/4
HSMCI_TPR = Data Buffer Address
HSMCI_TCR = BlockLength/4
Send WRITE_MULTIPLE_BLOCK
command
(1)
Read status register HSMCI_SR
Poll the bit
BLKE = 0?
Yes
No
HSMCI_PTCR = TXTEN
Poll the bit
NOTBUSY = 0?
Yes
RETURN
No
Send STOP_TRANSMISSION
command
(1)