Class daisy::SdmmcHandler¶

ClassList > daisy > SdmmcHandler

#include <sdmmc.h>

Classes¶

Type	Name
struct	Config

Public Types¶

Type	Name
enum	BusWidth
enum	Result
enum	Speed

Public Functions¶

Type	Name
Result	Init (const Config & cfg)
	SdmmcHandler ()
	~SdmmcHandler ()

Detailed Description¶

Configuration for interfacing with SD cards. Currently only supports operation using FatFS filesystem

Only SDMMC1 is supported at this time.

Pins are fixed to the following: PC12 - SDMMC1 CK PD2 - SDMMC1 CMD PC8 - SDMMC1 D0 PC9 - SDMMC1 D1 (optional) PC10 - SDMMC1 D2 (optional) PC11 - SDMMC1 D3 (optional)

Public Types Documentation¶

enum BusWidth¶

enum daisy::SdmmcHandler::BusWidth {
    BITS_1,
    BITS_4
};

Sets whether 4-bit mode or 1-bit mode is used for the SDMMC

enum Result¶

enum daisy::SdmmcHandler::Result {
    OK,
    ERROR
};

Return values for the SdmmcHandler class

enum Speed¶

enum daisy::SdmmcHandler::Speed {
    SLOW,
    MEDIUM_SLOW,
    STANDARD,
    FAST,
    VERY_FAST
};

Sets the desired clock speed of the SD card bus. Initialization is always done at or below 400kHz, and then the user speed is set.

Public Functions Documentation¶

function Init¶

Result daisy::SdmmcHandler::Init (
    const  Config & cfg
)

Configures the SDMMC Peripheral with the user defined settings. Initialization does not happen immediatly and will be called by the filesystem (i.e. FatFS).

function SdmmcHandler¶

inline daisy::SdmmcHandler::SdmmcHandler ()

function ~SdmmcHandler¶

inline daisy::SdmmcHandler::~SdmmcHandler ()

The documentation for this class was generated from the following file external-docs/libDaisy/src/per/sdmmc.h