jacob.eva/arduino-esp32
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Fix SD Card not mounting on boot

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The card seems to need a bit of a nudge at boot to properly mount
sometimes.
Fixes: https://github.com/espressif/arduino-esp32/issues/272
This commit is contained in:
me-no-dev 2017-03-20 00:50:27 +02:00
parent a70954111b
commit e81d4d3f72
1 changed files with 18 additions and 2 deletions
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20
libraries/SD/src/sd_diskio.cpp
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@ -142,10 +142,16 @@ char sdCommand(uint8_t pdrv, char cmd, unsigned int arg, unsigned int* resp)
}
if (token == 0xFF) {
log_e("no token received");
break;
log_w("no token received");
sdDeselectCard(pdrv);
delay(100);
sdSelectCard(pdrv);
continue;
} else if (token & 0x08) {
log_w("crc error");
sdDeselectCard(pdrv);
delay(100);
sdSelectCard(pdrv);
continue;
} else if (token > 1) {
log_w("token error [%u] 0x%x", cmd, token);
@ -443,6 +449,7 @@ DSTATUS ff_sd_initialize(uint8_t pdrv)
card->spi->beginTransaction(SPISettings(400000, MSBFIRST, SPI_MODE0));
if (sdTransaction(pdrv, GO_IDLE_STATE, 0, NULL) != 1) {
log_w("GO_IDLE_STATE failed");
goto unknown_card;
}
@ -451,15 +458,18 @@ DSTATUS ff_sd_initialize(uint8_t pdrv)
//old card maybe
card->supports_crc = false;
} else if (token != 1) {
log_w("CRC_ON_OFF failed: %u", token);
goto unknown_card;
}
if (sdTransaction(pdrv, SEND_IF_COND, 0x1AA, &resp) == 1) {
if ((resp & 0xFFF) != 0x1AA) {
log_w("SEND_IF_COND failed: %03X", resp & 0xFFF);
goto unknown_card;
}
if (sdTransaction(pdrv, READ_OCR, 0, &resp) != 1 || !(resp & (1 << 20))) {
log_w("READ_OCR failed: %X", resp);
goto unknown_card;
}
@ -469,6 +479,7 @@ DSTATUS ff_sd_initialize(uint8_t pdrv)
} while (token == 1 && (millis() - start) < 1000);
if (token) {
log_w("APP_OP_COND failed: %u", token);
goto unknown_card;
}
@ -479,10 +490,12 @@ DSTATUS ff_sd_initialize(uint8_t pdrv)
card->type = CARD_SD;
}
} else {
log_w("READ_OCR failed: %X", resp);
goto unknown_card;
}
} else {
if (sdTransaction(pdrv, READ_OCR, 0, &resp) != 1 || !(resp & (1 << 20))) {
log_w("READ_OCR failed: %X", resp);
goto unknown_card;
}
@ -502,6 +515,7 @@ DSTATUS ff_sd_initialize(uint8_t pdrv)
if (token == 0x00) {
card->type = CARD_MMC;
} else {
log_w("SEND_OP_COND failed: %u", token);
goto unknown_card;
}
}
@ -509,12 +523,14 @@ DSTATUS ff_sd_initialize(uint8_t pdrv)
if (card->type != CARD_MMC) {
if (sdTransaction(pdrv, APP_CLR_CARD_DETECT, 0, NULL)) {
log_w("APP_CLR_CARD_DETECT failed");
goto unknown_card;
}
}
if (card->type != CARD_SDHC) {
if (sdTransaction(pdrv, SET_BLOCKLEN, 512, NULL) != 0x00) {
log_w("SET_BLOCKLEN failed");
goto unknown_card;
}
}