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Changed SD OCR to a larger voltage range, hopefully fixing problems with a few cards.

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This commit is contained in:
Michael Chisholm 2006-07-28 06:00:56 +00:00
parent 9077692f45
commit 05645cd8c2
3 changed files with 8 additions and 2 deletions
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2
source/disc_io/io_m3sd.c
View File

@ -256,7 +256,7 @@ static bool _M3SD_initCard (void) {
return false;
}
_M3SD_sendCommand (SD_APP_OP_COND, 3<<16);
_M3SD_sendCommand (SD_APP_OP_COND, SD_OCR_VALUE);
if ((_M3SD_getResponse_R3 (responseBuffer)) && ((responseBuffer[1] & 0x80) != 0)) {
// Card is ready to receive commands now
break;

2
source/disc_io/io_scsd.c
View File

@ -208,7 +208,7 @@ static bool _SCSD_initCard (void) {
return false;
}
_SCSD_sendCommand (SD_APP_OP_COND, 3<<16);
_SCSD_sendCommand (SD_APP_OP_COND, SD_OCR_VALUE);
if ((_SCSD_getResponse_R3 (responseBuffer)) && ((responseBuffer[1] & 0x80) != 0)) {
// Card is ready to receive commands now
break;

6
source/disc_io/io_sd_common.h
View File

@ -32,6 +32,9 @@
2006-07-11 - Chishm
* Original release
2006-07-28 - Chishm
* Changed voltage range that the SD card can use
*/
#ifndef IO_SD_COMMON_H
@ -59,6 +62,9 @@
#define SET_BUS_WIDTH 6
#define SD_APP_OP_COND 41
/* OCR (Operating Conditions Register) send value */
//#define SD_OCR_VALUE 0x00030000 /* 2.8V to 3.0V */
#define SD_OCR_VALUE 0x003F8000 /* 2.7V to 3.4V */
/* SD Data repsonses */
#define SD_CARD_BUSY 0xff