SLAA281C November   2005  – August 2018 MSP430F1610 , MSP430F1610 , MSP430F1611 , MSP430F1611 , MSP430F1612 , MSP430F1612 , MSP430G2001 , MSP430G2001 , MSP430G2101 , MSP430G2101 , MSP430G2111 , MSP430G2111 , MSP430G2121 , MSP430G2121 , MSP430G2131 , MSP430G2131 , MSP430G2201 , MSP430G2201 , MSP430G2201-Q1 , MSP430G2201-Q1 , MSP430G2211 , MSP430G2211 , MSP430G2221 , MSP430G2221 , MSP430G2231 , MSP430G2231 , MSP430G2231-Q1 , MSP430G2231-Q1

 

  1.   Interfacing MSP430™ MCUs With MMC or SD Flash Memory Cards
    1.     Trademarks
    2. 1 Hardware Description
    3. 2 Software Description
    4. 3 Function Description
      1. 3.1 char mmcInit (void);
      2. 3.2 char mmcping(void);
      3. 3.3 void mmcSendCmd (const char cmd, unsigned long data, const char crc);
      4. 3.4 char mmcGoIdle();
      5. 3.5 char mmcSetBlockLength (const unsigned long);
      6. 3.6 char mmcReadBlock(const unsigned long address, const unsigned long count, unsigned char *pBuffer);
      7. 3.7 char mmcWriteBlock (const unsigned long address, const unsigned long count, unsigned char *pBuffer);
      8. 3.8 char mmcReadRegister (const char cmd_register, const unsigned char length, unsigned char *pBuffer);
      9. 3.9 unsigned long mmcReadCardSize(void);
    5. 4 References
  2.   Revision History

3.5 char mmcSetBlockLength (const unsigned long);

Set the MMC block length of count = 2n byte. Normally this command is not required. The default block length is 512 bytes.

Parameter: Block Length of count = 2n Byte
Return: Status Error or success code