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Add option to select SPI speed at SD::begin

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This commit is contained in:
ficeto
2015-05-11 22:29:02 +03:00
parent 3ff208c3e9
commit 95007b229d
2 changed files with 3 additions and 3 deletions
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4
libraries/SD/src/SD.cpp
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@ -332,7 +332,7 @@ boolean callback_rmdir(SdFile& parentDir, char *filePathComponent,
boolean SDClass::begin(uint8_t csPin) {
boolean SDClass::begin(uint8_t csPin, uint32_t speed) {
/*
Performs the initialisation required by the sdfatlib library.
@ -340,7 +340,7 @@ boolean SDClass::begin(uint8_t csPin) {
Return true if initialization succeeds, false otherwise.
*/
return card.init(SPI_HALF_SPEED, csPin) &&
return card.init(speed, csPin) &&
volume.init(card) &&
root.openRoot(volume);
}

2
libraries/SD/src/SD.h
View File

@ -65,7 +65,7 @@ private:
public:
// This needs to be called to set up the connection to the SD card
// before other methods are used.
boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN);
boolean begin(uint8_t csPin = SD_CHIP_SELECT_PIN, uint32_t speed = SPI_HALF_SPEED);
// Open the specified file/directory with the supplied mode (e.g. read or
// write, etc). Returns a File object for interacting with the file.