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Adding CS pin parameter to SD.begin(). Defaults to 4 (for Arduino Ethernet Shield).

Browse Source 
http://code.google.com/p/arduino/issues/detail?id=400
This commit is contained in:
David A. Mellis
2010-11-14 11:48:21 -05:00
parent 8629da8243
commit 6cbb866123
2 changed files with 9 additions and 8 deletions
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10
libraries/SD/SD.cpp
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@ -52,10 +52,6 @@
#include "SD.h"
// Use this to configure the chip select pin of the SD card.
#define SD_CARD_CHIP_SELECT_PIN 4 // For use with Arduino Ethernet Shield
// Used by `getNextPathComponent`
#define MAX_COMPONENT_LEN 12 // What is max length?
#define PATH_COMPONENT_BUFFER_LEN MAX_COMPONENT_LEN+1
@ -311,7 +307,9 @@ boolean callback_openPath(SdFile& parentDir, char *filePathComponent,
/* Implementation of class used to create `SDCard` object. */
void SDClass::begin() {
void SDClass::begin(uint8_t csPin) {
/*
Performs the initialisation required by the sdfatlib library.
@ -320,7 +318,7 @@ void SDClass::begin() {
*/
// TODO: Allow chip select pin to be supplied?
if (!(card.init(SPI_HALF_SPEED, SD_CARD_CHIP_SELECT_PIN)
if (!(card.init(SPI_HALF_SPEED, csPin)
&& volume.init(card) && root.openRoot(volume))) {
while (true) {
// Bail