本文整理汇总了C++中spiRec函数的典型用法代码示例。如果您正苦于以下问题：C++ spiRec函数的具体用法？C++ spiRec怎么用？C++ spiRec使用的例子？那么恭喜您, 这里精选的函数代码示例或许可以为您提供帮助。
在下文中一共展示了spiRec函数的20个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的C++代码示例。
示例1: spiSend
//------------------------------------------------------------------------------
// send one block of data for write block or write multiple blocks
uint8_t Sd2Card::writeData(uint8_t token, const uint8_t* src) {
spiSend(token);
for (uint16_t i = 0; i < 512; i++) {
spiSend(src[i]);
}
spiSend(0xff); // dummy crc
spiSend(0xff); // dummy crc
status_ = spiRec();
if ((status_ & DATA_RES_MASK) != DATA_RES_ACCEPTED) {
error(SD_CARD_ERROR_WRITE);
chipSelectHigh();
return false;
}
return true;
}
开发者ID:elkintomen，项目名称:chipKIT32-MAX，代码行数:20，代码来源:Sd2Card.cpp
示例2: millis
/** Wait for start block token */
uint8_t Sd2Card::waitStartBlock(void) {
uint16_t t0 = millis();
while ((status_ = spiRec()) == 0XFF) {
if (((uint16_t)millis() - t0) > SD_READ_TIMEOUT) {
error(SD_CARD_ERROR_READ_TIMEOUT);
goto fail;
}
}
if (status_ != DATA_START_BLOCK) {
error(SD_CARD_ERROR_READ);
goto fail;
}
return true;
fail:
chipSelectHigh();
return false;
}
开发者ID:elkintomen，项目名称:chipKIT32-MAX，代码行数:19，代码来源:Sd2Card.cpp
示例3: while
/** Skip remaining data in a block when in partial block read mode. */
void Sd2Card::readEnd(void) {
if (inBlock_) {
// skip data and crc
#ifdef OPTIMIZE_HARDWARE_SPI
// optimize skip for hardware
SPDR = 0XFF;
while (offset_++ < 513) {
while (!(SPSR & (1 << SPIF)));
SPDR = 0XFF;
}
// wait for last crc byte
while (!(SPSR & (1 << SPIF)));
#else // OPTIMIZE_HARDWARE_SPI
while (offset_++ < 514) spiRec();
#endif // OPTIMIZE_HARDWARE_SPI
chipSelectHigh();
inBlock_ = 0;
}
}
开发者ID:cuav，项目名称:MAAT，代码行数:20，代码来源:Sd2Card.cpp
示例4: while
/** Wait for start block token */
int Sd2Card::waitStartBlock(void) {
//unsigned t0 = millis();
unsigned count = 30000;
while ((status_ = spiRec()) == 0XFF) {
if (count-- == 0) {
error(SD_CARD_ERROR_READ_TIMEOUT);
goto fail;
}
}
if (status_ != DATA_START_BLOCK) {
error(SD_CARD_ERROR_READ);
goto fail;
}
return true;
fail:
chipSelectHigh();
return false;
}
开发者ID:GadgetFactory，项目名称:DesignLab_Examples，代码行数:21，代码来源:Sd2Card.cpp
示例5: dma_setup_transfer
/** Skip remaining data in a block when in partial block read mode. */
void Sd2Card::readEnd(void) {
if (inBlock_) {
// skip data and crc
#ifdef SPI_DMA
dma_setup_transfer(DMA1, DMA_CH3, &SPI1->regs->DR, DMA_SIZE_8BITS, ack, DMA_SIZE_8BITS,
(/*DMA_MINC_MODE | DMA_CIRC_MODE |*/ DMA_FROM_MEM | DMA_TRNS_CMPLT | DMA_TRNS_ERR));
dma_attach_interrupt(DMA1, DMA_CH3, DMAEvent);
dma_set_priority(DMA1, DMA_CH3, DMA_PRIORITY_VERY_HIGH);
dma_set_num_transfers(DMA1, DMA_CH3, SPI_BUFF_SIZE + 1 - offset_);
dmaActive = true;
dma_enable(DMA1, DMA_CH3);
while(dmaActive)delayMicroseconds(1);
dma_disable(DMA1, DMA_CH3);
#else // SPI_DMA
while (offset_++ < 514) spiRec();
#endif // SPI_DMA
chipSelectHigh();
inBlock_ = 0;
}
}
开发者ID:floriancargoet，项目名称:choosatron-core-firmware，代码行数:23，代码来源:Sd2Card.cpp
示例6: error
/**
* Writes a 512 byte block to an SD card.
*
* \param[in] blockNumber Logical block to be written.
* \param[in] src Pointer to the location of the data to be written.
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
uint8_t Sd2Card::writeBlock(uint32_t blockNumber, const uint8_t* src) {
#if SD_PROTECT_BLOCK_ZERO
// don't allow write to first block
if (blockNumber == 0) {
error(SD_CARD_ERROR_WRITE_BLOCK_ZERO);
Serial.println("Error: Write block zero");
goto fail;
}
#endif // SD_PROTECT_BLOCK_ZERO
// use address if not SDHC card
if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD24, blockNumber)) {
Serial.println("Error: CMD42");
error(SD_CARD_ERROR_CMD24);
goto fail;
}
if (!writeData(DATA_START_BLOCK, src)) goto fail;
// wait for flash programming to complete
if (!waitNotBusy(SD_WRITE_TIMEOUT)) {
error(SD_CARD_ERROR_WRITE_TIMEOUT);
Serial.println("Error: Write timeout");
goto fail;
}
// response is r2 so get and check two bytes for nonzero
if (cardCommand(CMD13, 0) || spiRec()) {
error(SD_CARD_ERROR_WRITE_PROGRAMMING);
Serial.println("Error: Write programming");
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
Serial.println("Error: Sd2Card::writeBlock");
return false;
}
开发者ID:cohabo，项目名称:my_src，代码行数:47，代码来源:Sd2Card.cpp
示例7: while
//------------------------------------------------------------------------------
// send one block of data for write block or write multiple blocks
uint8_t Sd2Card::writeData(uint8_t token, const uint8_t* src) {
#ifdef OPTIMIZE_HARDWARE_SPI
/*
// send data - optimized loop
SPDR = token;
// send two byte per iteration
for (uint16_t i = 0; i < 512; i += 2) {
while (!(SPSR & (1 << SPIF)));
SPDR = src[i];
while (!(SPSR & (1 << SPIF)));
SPDR = src[i+1];
}
// wait for last data byte
while (!(SPSR & (1 << SPIF)));
*/
#else // OPTIMIZE_HARDWARE_SPI
spiSend(token);
for (uint16_t i = 0; i < 512; i++)
{
spiSend(src[i]);
}
//spiSend(src, 512);
#endif // OPTIMIZE_HARDWARE_SPI
spiSend(0xff); // dummy crc
spiSend(0xff); // dummy crc
status_ = spiRec();
if ((status_ & DATA_RES_MASK) != DATA_RES_ACCEPTED)
{
error(SD_CARD_ERROR_WRITE);
chipSelectHigh();
SerialDebug.println("Error: Write");
SerialDebug.println("Error: Sd2Card::writeData()");
return false;
}
return true;
}
开发者ID:jdkarpin，项目名称:AeroQuad，代码行数:41，代码来源:Sd2Card.cpp
示例8: defined
/** Skip remaining data in a block when in partial block read mode. */
void Sd2Card::readEnd(void) {
if (inBlock_) {
// skip data and crc
#if defined(USE_TEENSY3_SPI)
if (offset_ < 514) {
spiRecIgnore(514 - offset_);
offset_ = 514;
}
#elif defined(OPTIMIZE_HARDWARE_SPI)
// optimize skip for hardware
SPDR = 0XFF;
while (offset_++ < 513) {
while (!(SPSR & (1 << SPIF)));
SPDR = 0XFF;
}
// wait for last crc byte
while (!(SPSR & (1 << SPIF)));
#else // OPTIMIZE_HARDWARE_SPI
while (offset_++ < 514) spiRec();
#endif // OPTIMIZE_HARDWARE_SPI
chipSelectHigh();
inBlock_ = 0;
}
}
开发者ID:brianc118，项目名称:Team-PI-Lib，代码行数:25，代码来源:Sd2Card.cpp
示例9: readEnd
//------------------------------------------------------------------------------
// send command and return error code. Return zero for OK
uint8_t Sd2Card::cardCommand(uint8_t cmd, uint32_t arg) {
// end read if in partialBlockRead mode
readEnd();
// select card
chipSelectLow();
// wait up to 300 ms if busy
waitNotBusy(300);
// send command
spiSend(cmd | 0x40);
#ifdef ESP8266
// send argument
SPI.write32(arg, true);
#else
// send argument
for (int8_t s = 24; s >= 0; s -= 8) spiSend(arg >> s);
#endif
// send CRC
uint8_t crc = 0xFF;
if (cmd == CMD0) crc = 0x95; // correct crc for CMD0 with arg 0
if (cmd == CMD8) crc = 0x87; // correct crc for CMD8 with arg 0X1AA
spiSend(crc);
// wait for response
for (uint8_t i = 0; ((status_ = spiRec()) & 0x80) && i != 0xFF; i++)
;
#ifdef ESP8266
optimistic_yield(10000);
#endif
return status_;
}
开发者ID:9mrcookie9，项目名称:Arduino，代码行数:38，代码来源:Sd2Card.cpp
示例10: error
/**
Read part of a 512 byte block from an SD card.
\param[in] block Logical block to be read.
\param[in] offset Number of bytes to skip at start of block
\param[out] dst Pointer to the location that will receive the data.
\param[in] count Number of bytes to read
\return The value one, true, is returned for success and
the value zero, false, is returned for failure.
*/
uint8_t Sd2Card::readData(uint32_t block, uint16_t offset, uint16_t count, uint8_t* dst)
{
// uint16_t n;
if (count == 0)
{
return true;
}
if ((count + offset) > 512)
{
goto fail;
}
if (!inBlock_ || block != block_ || offset < offset_)
{
block_ = block;
// use address if not SDHC card
if (type() != SD_CARD_TYPE_SDHC)
{
block <<= 9;
}
if (cardCommand(CMD17, block))
{
error(SD_CARD_ERROR_CMD17);
goto fail;
}
if (!waitStartBlock())
{
goto fail;
}
offset_ = 0;
inBlock_ = 1;
}
#ifdef OPTIMIZE_HARDWARE_SPI
// start first spi transfer
SPDR = 0XFF;
// skip data before offset
for (; offset_ < offset; offset_++)
{
while (!(SPSR & (1 << SPIF)));
SPDR = 0XFF;
}
// transfer data
n = count - 1;
for (uint16_t i = 0; i < n; i++)
{
while (!(SPSR & (1 << SPIF)));
dst[i] = SPDR;
SPDR = 0XFF;
}
// wait for last byte
while (!(SPSR & (1 << SPIF)));
dst[n] = SPDR;
#else // OPTIMIZE_HARDWARE_SPI
// skip data before offset
for (; offset_ < offset; offset_++)
{
spiRec();
}
// transfer data
for (uint16_t i = 0; i < count; i++)
{
dst[i] = spiRec();
}
#endif // OPTIMIZE_HARDWARE_SPI
offset_ += count;
if (!partialBlockRead_ || offset_ >= 512)
{
// read rest of data, checksum and set chip select high
readEnd();
}
return true;
fail:
chipSelectHigh();
return false;
}
开发者ID:rei-vilo，项目名称:SD_TM4C，代码行数:90，代码来源:Sd2Card.cpp
示例11: pinMode
/**
* Initialize an SD flash memory card.
*
* \param[in] sckRateID SPI clock rate selector. See setSckRate().
* \param[in] chipSelectPin SD chip select pin number.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure. The reason for failure
* can be determined by calling errorCode() and errorData().
*/
uint8_t Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
errorCode_ = inBlock_ = partialBlockRead_ = type_ = 0;
// 16-bit init start time allows over a minute
uint16_t t0 = (uint16_t)millis();
uint32_t arg;
SPI2CON = 0;
DDPCONbits.JTAGEN = 0;
AD1PCFG = 0xFFFF;
chipSelectPin_ = chipSelectPin;
pinMode(chipSelectPin_, OUTPUT);
PORTSetPinsDigitalOut(prtSCK, bnSCK);
PORTSetPinsDigitalOut(prtSDO, bnSDO);
PORTSetPinsDigitalIn(prtSDI, bnSDI);
// set pin modes
chipSelectHigh();
// must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
chipSelectLow();
// command to go idle in SPI mode
while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) {
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_CMD0);
goto fail;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
type(SD_CARD_TYPE_SD1);
} else {
// only need last byte of r7 response
for (uint8_t i = 0; i < 4; i++) status_ = spiRec();
if (status_ != 0XAA) {
error(SD_CARD_ERROR_CMD8);
goto fail;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
arg = type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0;
while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) {
// check for timeout
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_ACMD41);
goto fail;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if (cardCommand(CMD58, 0)) {
error(SD_CARD_ERROR_CMD58);
goto fail;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr - contains allowed voltage range
for (uint8_t i = 0; i < 3; i++) spiRec();
}
chipSelectHigh();
#ifndef SOFTWARE_SPI
return setSckRate(sckRateID);
#else // SOFTWARE_SPI
return true;
#endif // SOFTWARE_SPI
fail:
chipSelectHigh();
return false;
}
开发者ID:JacobChrist，项目名称:chipKIT32-MAX，代码行数:90，代码来源:Sd2Card.cpp
示例12: setSckRate
//.........这里部分代码省略.........
//#endif // SOFTWARE_SPI
// Hardware card detection
if (cardDetectionPin_ >= 0)
{
// debugln("hardware card detection %i should be %i", digitalRead(cardDetectionPin_), level);
if (digitalRead(cardDetectionPin_) != level_)
{
// Serial.println("*** hardware failure");
error(SD_CARD_ERROR_CMD0);
// I don't like goto but this is how it is implemented
goto fail;
}
}
// Software card detection
// must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++)
{
spiSend(0xff);
}
chipSelectLow();
// Serial.print("software card detection ");
// command to go idle in SPI mode
while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE)
{
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT)
{
error(SD_CARD_ERROR_CMD0);
// Serial.println("*** software failure");
goto fail;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND))
{
type(SD_CARD_TYPE_SD1);
}
else
{
// only need last byte of r7 response
for (uint8_t i = 0; i < 4; i++)
{
status_ = spiRec();
}
if (status_ != 0xaa)
{
error(SD_CARD_ERROR_CMD8);
goto fail;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
arg = type() == SD_CARD_TYPE_SD2 ? 0x40000000 : 0;
while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE)
{
// check for timeout
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT)
{
error(SD_CARD_ERROR_ACMD41);
goto fail;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2)
{
if (cardCommand(CMD58, 0))
{
error(SD_CARD_ERROR_CMD58);
goto fail;
}
if ((spiRec() & 0xc0) == 0xc0)
{
type(SD_CARD_TYPE_SDHC);
}
// discard rest of ocr - contains allowed voltage range
for (uint8_t i = 0; i < 3; i++)
{
spiRec();
}
}
chipSelectHigh();
#ifndef SOFTWARE_SPI
return setSckRate(sckRateID);
#else // SOFTWARE_SPI
return true;
#endif // SOFTWARE_SPI
fail:
chipSelectHigh();
return false;
}
开发者ID:rei-vilo，项目名称:SD_TM4C，代码行数:101，代码来源:Sd2Card.cpp
示例13: pinMode
/**
* Initialize an SD flash memory card.
*
* \param[in] sckRateID SPI clock rate selector. See setSckRate().
* \param[in] chipSelectPin SD chip select pin number.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure. The reason for failure
* can be determined by calling errorCode() and errorData().
*/
uint8_t Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
errorCode_ = inBlock_ = partialBlockRead_ = type_ = 0;
chipSelectPin_ = chipSelectPin;
// 16-bit init start time allows over a minute
uint16_t t0 = (uint16_t)millis();
uint32_t arg;
// set pin modes
pinMode(chipSelectPin_, OUTPUT);
digitalWrite(chipSelectPin_, HIGH);
#ifndef USE_SPI_LIB
pinMode(SPI_MISO_PIN, INPUT);
pinMode(SPI_MOSI_PIN, OUTPUT);
pinMode(SPI_SCK_PIN, OUTPUT);
#endif
#ifndef SOFTWARE_SPI
#ifndef USE_SPI_LIB
// SS must be in output mode even it is not chip select
pinMode(SS_PIN, OUTPUT);
digitalWrite(SS_PIN, HIGH); // disable any SPI device using hardware SS pin
// Enable SPI, Master, clock rate f_osc/128
SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1) | (1 << SPR0);
// clear double speed
SPSR &= ~(1 << SPI2X);
#else // USE_SPI_LIB
SPI.begin();
settings = SPISettings(250000, MSBFIRST, SPI_MODE0);
#endif // USE_SPI_LIB
#endif // SOFTWARE_SPI
// must supply min of 74 clock cycles with CS high.
#ifdef USE_SPI_LIB
SPI.beginTransaction(settings);
#endif
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
#ifdef USE_SPI_LIB
SPI.endTransaction();
#endif
chipSelectLow();
// command to go idle in SPI mode
while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) {
if (((uint16_t)(millis() - t0)) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_CMD0);
goto fail;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
type(SD_CARD_TYPE_SD1);
} else {
// only need last byte of r7 response
for (uint8_t i = 0; i < 4; i++) status_ = spiRec();
if (status_ != 0XAA) {
error(SD_CARD_ERROR_CMD8);
goto fail;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
arg = type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0;
while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) {
// check for timeout
if (((uint16_t)(millis() - t0)) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_ACMD41);
goto fail;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if (cardCommand(CMD58, 0)) {
error(SD_CARD_ERROR_CMD58);
goto fail;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr - contains allowed voltage range
for (uint8_t i = 0; i < 3; i++) spiRec();
}
chipSelectHigh();
#ifndef SOFTWARE_SPI
return setSckRate(sckRateID);
#else // SOFTWARE_SPI
return true;
#endif // SOFTWARE_SPI
fail:
//.........这里部分代码省略.........
开发者ID:jucs，项目名称:temperature，代码行数:101，代码来源:Sd2Card.cpp
示例14: pinMode
/**
* Initialize a SD flash memory card.
*
* \param[in] slow If \a slow is false (zero) the SPI bus will
* be initialize at a speed of 8 Mhz. If \a slow is true (nonzero)
* the SPI bus will be initialize a speed of 4 Mhz. This may be helpful
* for some SD cards with Version 1.0 of the Adafruit Wave Shield.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*
*/
uint8_t SdReader::init(uint8_t slow) {
uint8_t ocr[4];
uint8_t r;
pinMode(SS, OUTPUT);
digitalWrite(SS, HIGH);
pinMode(MOSI, OUTPUT);
pinMode(MISO_PIN, INPUT);
pinMode(SCK, OUTPUT);
#if SPI_INIT_SLOW
// Enable SPI, Master, clock rate f_osc/128
SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1) | (1 << SPR0);
#else // SPI_INIT_SLOW
// Enable SPI, Master, clock rate f_osc/64
SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1);
#endif // SPI_INIT_SLOW
// must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
// next two lines prevent re-init hang by cards that were in partial read
spiSSLow();
for (uint16_t i = 0; i <= 512; i++) spiRec();
// command to go idle in SPI mode
for (uint8_t retry = 0; ; retry++) {
if ((r = cardCommand(CMD0, 0)) == R1_IDLE_STATE) break;
if (retry == 10) {
error(SD_CARD_ERROR_CMD0, r);
return false;
}
}
// check SD version
r = cardCommand(CMD8, 0x1AA);
if (r == R1_IDLE_STATE) {
for(uint8_t i = 0; i < 4; i++) {
r = spiRec();
}
if (r != 0XAA) {
error(SD_CARD_ERROR_CMD8_ECHO, r);
return false;
}
type(SD_CARD_TYPE_SD2);
}
else if (r & R1_ILLEGAL_COMMAND) {
type(SD_CARD_TYPE_SD1);
}
else {
error(SD_CARD_ERROR_CMD8, r);
}
// initialize card and send host supports SDHC if SD2
for (uint16_t t0 = millis();;) {
cardCommand(CMD55, 0);
r = cardCommand(ACMD41, type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0);
if (r == R1_READY_STATE) break;
// timeout after 2 seconds
if (((uint16_t)millis() - t0) > 2000) {
error(SD_CARD_ERROR_ACMD41);
return false;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if(cardCommand(CMD58, 0)) {
error(SD_CARD_ERROR_CMD58);
return false;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr
for (uint8_t i = 0; i < 3; i++) spiRec();
}
// use max SPI frequency unless slow is true
SPCR &= ~((1 << SPR1) | (1 << SPR0)); // f_OSC/4
if (!slow) SPSR |= (1 << SPI2X); // Doubled Clock Frequency: f_OSC/2
spiSSHigh();
return true;
}
开发者ID:GrandK，项目名称:cheerful-bot，代码行数:94，代码来源:SdReader.cpp
示例15: pinMode
/**
* Initialize an SD flash memory card.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure. The reason for failure
* can be determined by calling errorCode() and errorData().
*/
uint8_t Sd2Card::init() {
errorCode_ = inBlock_ = partialBlockRead_ = type_ = 0;
chipSelectPin_ = SD_CHIP_SELECT_PIN;
// 16-bit init start time allows over a minute
uint16_t t0 = (uint16_t)millis();
uint32_t arg;
// set pin modes
pinMode(chipSelectPin_, OUTPUT);
chipSelectHigh();
pinMode(SPI_MISO_PIN, INPUT);
pinMode(SPI_MOSI_PIN, OUTPUT);
pinMode(SPI_SCK_PIN, OUTPUT);
// must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
chipSelectLow();
// command to go idle in SPI mode
while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) {
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_CMD0);
goto fail;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
type(SD_CARD_TYPE_SD1);
} else {
// only need last byte of r7 response
for (uint8_t i = 0; i < 4; i++) status_ = spiRec();
if (status_ != 0XAA) {
error(SD_CARD_ERROR_CMD8);
goto fail;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
arg = type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0;
while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) {
// check for timeout
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_ACMD41);
goto fail;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if (cardCommand(CMD58, 0)) {
error(SD_CARD_ERROR_CMD58);
goto fail;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr - contains allowed voltage range
for (uint8_t i = 0; i < 3; i++) spiRec();
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
开发者ID:abiaozsh，项目名称:MyCode，代码行数:74，代码来源:Sd2Card.cpp
示例16: error
/**
* Read part of a 512 byte block from an SD card.
*
* \param[in] block Logical block to be read.
* \param[in] offset Number of bytes to skip at start of block
* \param[out] dst Pointer to the location that will receive the data.
* \param[in] count Number of bytes to read
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
uint8_t Sd2Card::readData(uint32_t block,
uint16_t offset, uint16_t count, uint8_t* dst) {
//uint16_t n;
if (count == 0) return true;
if ((count + offset) > 512) {
goto fail;
}
if (!inBlock_ || block != block_ || offset < offset_) {
block_ = block;
// use address if not SDHC card
if (type()!= SD_CARD_TYPE_SDHC) block <<= 9;
if (cardCommand(CMD17, block)) {
error(SD_CARD_ERROR_CMD17);
Serial.println("Error: CMD17");
goto fail;
}
if (!waitStartBlock()) {
goto fail;
}
offset_ = 0;
inBlock_ = 1;
}
#ifdef SPI_DMA
// skip data before offset
if(offset_ < offset){
dma_setup_transfer(DMA1,
DMA_CH3,
&SPI1->regs->DR,
DMA_SIZE_8BITS,
ack,
DMA_SIZE_8BITS,
(/*DMA_MINC_MODE | DMA_CIRC_MODE |*/ DMA_FROM_MEM | DMA_TRNS_CMPLT | DMA_TRNS_ERR));
dma_attach_interrupt(DMA1, DMA_CH3, DMAEvent);
dma_set_priority(DMA1, DMA_CH3, DMA_PRIORITY_VERY_HIGH);
dma_set_num_transfers(DMA1, DMA_CH3, offset - offset_);
dmaActive = true;
dma_enable(DMA1, DMA_CH3);
while(dmaActive) delayMicroseconds(1);
dma_disable(DMA1, DMA_CH3);
}
offset_ = offset;
// transfer data
dma_setup_transfer(DMA1, DMA_CH2, &SPI1->regs->DR, DMA_SIZE_8BITS, dst, DMA_SIZE_8BITS,
(DMA_MINC_MODE | DMA_TRNS_CMPLT | DMA_TRNS_ERR));
dma_attach_interrupt(DMA1, DMA_CH2, DMAEvent);
dma_setup_transfer(DMA1, DMA_CH3, &SPI1->regs->DR, DMA_SIZE_8BITS, ack, DMA_SIZE_8BITS,
(/*DMA_MINC_MODE | DMA_CIRC_MODE |*/ DMA_FROM_MEM));
dma_set_priority(DMA1, DMA_CH2, DMA_PRIORITY_VERY_HIGH);
dma_set_priority(DMA1, DMA_CH3, DMA_PRIORITY_VERY_HIGH);
dma_set_num_transfers(DMA1, DMA_CH2, count);
dma_set_num_transfers(DMA1, DMA_CH3, count);
dmaActive = true;
dma_enable(DMA1, DMA_CH3);
dma_enable(DMA1, DMA_CH2);
while(dmaActive) delayMicroseconds(1);
dma_disable(DMA1, DMA_CH3);
dma_disable(DMA1, DMA_CH2);
offset_ += count;
if (!partialBlockRead_ || offset_ >= SPI_BUFF_SIZE) {
readEnd();
}
#else
// skip data before offset
for (;offset_ < offset; offset_++) {
spiRec();
}
// transfer data
for (uint16_t i = 0; i < count; i++) {
dst[i] = spiRec();
}
offset_ += count;
if (!partialBlockRead_ || offset_ >= 512) {
// read rest of data, checksum and set chip select high
readEnd();
}
#endif
return true;
fail:
chipSelectHigh();
Serial.println("Error: Sd2Card::readData()");
//.........这里部分代码省略.........
开发者ID:floriancargoet，项目名称:choosatron-core-firmware，代码行数:101，代码来源:Sd2Card.cpp
示例17: chipSelectHigh
uint8_t Sd2Card::init(HardwareSPI &SPIn) {
errorCode_ = inBlock_ = partialBlockRead_ = type_ = 0;
//chipSelectPin_ = chipSelectPin;
// 16-bit init start time allows over a minute
uint16_t t0 = (uint16_t)millis();
uint32_t arg;
// SPIn = s;
// set pin modes
/* pinMode(chipSelectPin_, OUTPUT);
chipSelectHigh();
pinMode(SPI_MISO_PIN, INPUT);
pinMode(SPI_MOSI_PIN, OUTPUT);
pinMode(SPI_SCK_PIN, OUTPUT);
*/
// SS must be in output mode even it is not chip select
// pinMode(SS_PIN, OUTPUT);
// Enable SPI, Master, clock rate f_osc/128
// SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1) | (1 << SPR0);
// clear double speed
// SPSR &= ~(1 << SPI2X);
// must supply min of 74 clock cycles with CS high.
chipSelectHigh();
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
chipSelectLow();
// command to go idle in SPI mode
while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) {
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
Serial.println("Error: CMD0");
error(SD_CARD_ERROR_CMD0);
goto fail;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
type(SD_CARD_TYPE_SD1);
} else {
// only need last byte of r7 response
for (uint8_t i = 0; i < 4; i++) status_ = spiRec();
if (status_ != 0XAA) {
error(SD_CARD_ERROR_CMD8);
Serial.println("Error: CMD8");
goto fail;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
arg = (type() == SD_CARD_TYPE_SD2) ? 0X40000000 : 0;
while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) {
// check for timeout
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
Serial.println("Error: ACMD41");
error(SD_CARD_ERROR_ACMD41);
goto fail;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if (cardCommand(CMD58, 0)) {
Serial.println("Error: CMD58");
error(SD_CARD_ERROR_CMD58);
goto fail;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr - contains allowed voltage range
for (uint8_t i = 0; i < 3; i++) spiRec();
}
chipSelectHigh();
// return setSckRate(sckRateID);
return true;
fail:
chipSelectHigh();
Serial.println("Error: Sd2Card::init()");
return false;
}
开发者ID:cohabo，项目名称:my_src，代码行数:85，代码来源:Sd2Card.cpp
示例18: pinMode
/**
* Initialize an SD flash memory card.
*
* \param[in] sckRateID SPI clock rate selector. See setSckRate().
* \param[in] chipSelectPin SD chip select pin number.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure. The reason for failure
* can be determined by calling errorCode() and errorData().
*/
bool Sd2Card::init(uint8_t sckRateID, uint8_t chipSelectPin) {
errorCode_ = type_ = 0;
chipSelectPin_ = chipSelectPin;
// 16-bit init start time allows over a minute
uint16_t t0 = (uint16_t)millis();
uint32_t arg;
// set pin modes
pinMode(chipSelectPin_, OUTPUT);
chipSelectHigh();
pinMode(SPI_MISO_PIN, INPUT);
pinMode(SPI_MOSI_PIN, OUTPUT);
pinMode(SPI_SCK_PIN, OUTPUT);
// SS must be in output mode even it is not chip select
pinMode(SS_PIN, OUTPUT);
// set SS high - may be chip select for another SPI device
#if SET_SPI_SS_HIGH
digitalWrite(SS_PIN, HIGH);
#endif // SET_SPI_SS_HIGH
spiInit();
// set SCK rate for initialization commands
setSckRate(SPI_SD_INIT_RATE);
// must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
// command to go idle in SPI mode
while ((status_ = cardCommand(CMD0, 0)) != R1_IDLE_STATE) {
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_CMD0);
goto fail;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
type(SD_CARD_TYPE_SD1);
} else {
// only need last byte of r7 response
for (uint8_t i = 0; i < 4; i++) status_ = spiRec();
if (status_ != 0XAA) {
error(SD_CARD_ERROR_CMD8);
goto fail;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
arg = type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0;
while ((status_ = cardAcmd(ACMD41, arg)) != R1_READY_STATE) {
// check for timeout
if (((uint16_t)millis() - t0) > SD_INIT_TIMEOUT) {
error(SD_CARD_ERROR_ACMD41);
goto fail;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if (cardCommand(CMD58, 0)) {
error(SD_CARD_ERROR_CMD58);
goto fail;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr - contains allowed voltage range
for (uint8_t i = 0; i < 3; i++) spiRec();
}
chipSelectHigh();
return setSckRate(sckRateID);
fail:
chipSelectHigh();
return false;
}
开发者ID:Kazuyoko，项目名称:MarlinKimbra4due，代码行数:84，代码来源:Sd2Card.cpp
示例19: spiRead
void spiRead(uint8_t* buf, uint16_t nbyte) {
while (nbyte--)
*buf++ = spiRec();
}
开发者ID:Kazuyoko，项目名称:MarlinKimbra4due，代码行数:6，代码来源:Sd2Card.cpp
示例20: spiSSOutputMode
/**
* Initialize a SD flash memory card.
*
* \param[in] slow Set SPI Frequency F_CPU/4 if true else F_CPU/2.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
uint8_t Sd2Card::init(uint8_t slow)
{
uint8_t r;
errorCode_ = inBlock_ = partialBlockRead_ = type_ = 0;
// set pin modes
spiSSOutputMode();
spiSSHigh();
spiMISOInputMode();
spiMOSIOutputMode();
spiSCKOutputMode();
#ifndef SOFTWARE_SPI
//Enable SPI, Master, clock rate f_osc/128
SPCR = (1 << SPE) | (1 << MSTR) | (1 << SPR1) | (1 << SPR0);
#endif //SOFTWARE_SPI
//must supply min of 74 clock cycles with CS high.
for (uint8_t i = 0; i < 10; i++) spiSend(0XFF);
// next two lines prevent re-init hang by cards that were in partial read
spiSSLow();
for (uint16_t i = 0; i <= 512; i++) spiRec();
// command to go idle in SPI mode
for (uint8_t retry = 0; ; retry++) {
if ((r = cardCommand(CMD0, 0)) == R1_IDLE_STATE) break;
if (retry == 10) {
error(SD_CARD_ERROR_CMD0, r);
return false;
}
}
// check SD version
if ((cardCommand(CMD8, 0x1AA) & R1_ILLEGAL_COMMAND)) {
type(SD_CARD_TYPE_SD1);
}
else {
// only need last byte of r7 response
for(uint8_t i = 0; i < 4; i++) r = spiRec();
if (r != 0XAA) {
error(SD_CARD_ERROR_CMD8, r);
return false;
}
type(SD_CARD_TYPE_SD2);
}
// initialize card and send host supports SDHC if SD2
for (uint16_t t0 = millis();;) {
r = cardAcmd(ACMD41, type() == SD_CARD_TYPE_SD2 ? 0X40000000 : 0);
if (r == R1_READY_STATE) break;
// timeout after 2 seconds
if (((uint16_t)millis() - t0) > 2000) {
error(SD_CARD_ERROR_ACMD41);
return false;
}
}
// if SD2 read OCR register to check for SDHC card
if (type() == SD_CARD_TYPE_SD2) {
if(cardCommand(CMD58, 0)) {
error(SD_CARD_ERROR_CMD58);
return false;
}
if ((spiRec() & 0XC0) == 0XC0) type(SD_CARD_TYPE_SDHC);
// discard rest of ocr
for (uint8_t i = 0; i < 3; i++) spiRec();
}
#ifndef SOFTWARE_SPI
// set SPI frequency to f_OSC/4
SPCR &= ~((1 << SPR1) | (1 << SPR0));
// if !slow set SPI frequency to f_OSC/2
if (!slow) SPSR |= (1 << SPI2X);
#endif // SOFTWARE_SPI
spiSSHigh();
return true;
}
开发者ID:natetarrh，项目名称:rfid，代码行数:83，代码来源:Sd2Card.cpp
注：本文中的spiRec函数示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。 |
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