Page Comparison

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void  FSDev_SD_Card_BSP_CmdDataWr (FS_QTY               unit_nbr,

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                                   FS_DEV_SD_CARD_CMD  *p_cmd,

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                                   void                *p_src,

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1142683 FS_DEV_SD_CARD_ERR *p_err); Anchor11426971142697  
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File
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Called from
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Code enabled by
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fs_dev_sd_card_bsp.c
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FSDev_SD_Card_WrData()
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N/A
 Anchor11426981142698Write data following a command. Anchor11426991142699
Arguments
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1142700unit_nbr Anchor11427011142701
Unit number of SD/MMC card.
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1142702p_cmd Anchor11427031142703
Pointer to command that was started.
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11427041142704p_src Anchor11427051142705
Pointer to source buffer.
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11427061142706p_err Anchor11427071142707
Pointer to variable that will receive the return error code from this function:
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_NONE
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class
WebWorks_Indent_2
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No error.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_NO_CARD
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class
WebWorks_Indent_2
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No card present.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_UNKNOWN
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class
WebWorks_Indent_2
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Unknown or other error.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_WAIT_TIMEOUT
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class
WebWorks_Indent_2
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Timeout in waiting for data.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_DATA_UNDERRUN
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Data underrun.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_DATA_CHKSUM
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class
WebWorks_Indent_2
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Error in data checksum.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_DATA_START_BIT
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Data start bit error.
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class
WebWorks_Indent_1
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FS_DEV_SD_CARD_ERR_DATA
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class
WebWorks_Indent_2
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Other data error.
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Returned Value
 Anchor11427251142725None. Anchor11427261142726
Notes/Warnings
 Anchor11427271142727None. Anchor11427281142728
Example
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The implementation of FSDev_SD_Card_BSP_CmdDataWr() in Listing C Listing C-10 is targeted for the same host controller as the other listings in this chapter; for more information, see FSDev_SD_Card_BSP_CmdStart(). Anchor11427731142773  
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Listing C-10 FSDev_SD_Card_BSP_CmdDataWr(
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) 
LC-10(1) Wait until data transfer completes or an error occurs. The wait loop (or wait on semaphore) SHOULD always have a timeout to avoid blocking the task in the case of an unforeseen hardware malfunction or a software flaw. 
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LC-10(2) Check if an error occurred. The error status register is decoded to produce the actual error condition. That is not necessary, strictly, but error counters that accumulate within the generic driver based upon returned error values may be useful while debugging a port.
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LC-10(3) Return no error. The data has been transferred already from the memory buffer using DMA.