SunRed/Marlin-Artillery-M600
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Removed interrupt nesting in the stepper ISR.

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Add serial checkRx in stepper ISR.
Copied HardwareSerial to MarlinSerial (Needed for checkRx).
This commit is contained in:
Erik van der Zalm 2011-11-27 21:12:55 +01:00
parent aad4b75b94
commit f75f426dfa
16 changed files with 1007 additions and 754 deletions
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2
Marlin/Configuration.h
View file

@ -232,7 +232,7 @@ const bool Z_ENDSTOPS_INVERTING = true; // set to true to invert the logic of th
// minimum time in microseconds that a movement needs to take if the buffer is emptied. Increase this number if you see blobs while printing high speed & high detail. It will slowdown on the detailed stuff.
#define DEFAULT_MINSEGMENTTIME 20000 // Obsolete delete this
#define DEFAULT_XYJERK 30.0 // (mm/sec)
#define DEFAULT_XYJERK 20.0 // (mm/sec)
#define DEFAULT_ZJERK 0.4 // (mm/sec)

1
Marlin/EEPROMwrite.h
View file

@ -4,6 +4,7 @@
#include "Marlin.h"
#include "planner.h"
#include "temperature.h"
#include <EEPROM.h>
template <class T> int EEPROM_writeAnything(int &ee, const T& value)

10
Marlin/Marlin.h
View file

@ -3,10 +3,12 @@
// Tonokip RepRap firmware rewrite based off of Hydra-mmm firmware.
// Licence: GPL
#define HardwareSerial_h // trick to disable the standard HWserial
#include <WProgram.h>
#include "fastio.h"
#include <avr/pgmspace.h>
#include "Configuration.h"
#include "MarlinSerial.h"
//#define SERIAL_ECHO(x) Serial << "echo: " << x;
//#define SERIAL_ECHOLN(x) Serial << "echo: "<<x<<endl;
@ -17,10 +19,10 @@
#define SERIAL_PROTOCOL(x) Serial.print(x);
#define SERIAL_PROTOCOL(x) MSerial.print(x);
#define SERIAL_PROTOCOLPGM(x) serialprintPGM(PSTR(x));
#define SERIAL_PROTOCOLLN(x) {Serial.print(x);Serial.write('\n');}
#define SERIAL_PROTOCOLLNPGM(x) {serialprintPGM(PSTR(x));Serial.write('\n');}
#define SERIAL_PROTOCOLLN(x) {MSerial.print(x);MSerial.write('\n');}
#define SERIAL_PROTOCOLLNPGM(x) {serialprintPGM(PSTR(x));MSerial.write('\n');}
const char errormagic[] PROGMEM ="Error:";
const char echomagic[] PROGMEM ="echo:";
@ -46,7 +48,7 @@ inline void serialprintPGM(const char *str)
char ch=pgm_read_byte(str);
while(ch)
{
Serial.write(ch);
MSerial.write(ch);
ch=pgm_read_byte(++str);
}
}

25
Marlin/Marlin.pde
View file

@ -176,6 +176,7 @@ static unsigned long stoptime=0;
static uint8_t tmp_extruder;
//===========================================================================
//=============================ROUTINES=============================
//===========================================================================
@ -199,13 +200,6 @@ extern "C"{
}
}
//adds an command to the main command buffer
//thats really done in a non-safe way.
//needs overworking someday
@ -226,7 +220,7 @@ void enquecommand(const char *cmd)
void setup()
{
Serial.begin(BAUDRATE);
MSerial.begin(BAUDRATE);
SERIAL_ECHO_START;
SERIAL_ECHOLNPGM(VERSION_STRING);
SERIAL_PROTOCOLLNPGM("start");
@ -289,15 +283,14 @@ void loop()
manage_heater();
manage_inactivity(1);
checkHitEndstops();
checkStepperErrors();
LCD_STATUS;
}
inline void get_command()
{
while( Serial.available() > 0 && buflen < BUFSIZE) {
serial_char = Serial.read();
while( MSerial.available() > 0 && buflen < BUFSIZE) {
serial_char = MSerial.read();
if(serial_char == '\n' || serial_char == '\r' || serial_char == ':' || serial_count >= (MAX_CMD_SIZE - 1) )
{
if(!serial_count) return; //if empty line
@ -1039,7 +1032,7 @@ inline void process_commands()
void FlushSerialRequestResend()
{
//char cmdbuffer[bufindr][100]="Resend:";
Serial.flush();
MSerial.flush();
SERIAL_PROTOCOLPGM("Resend:");
SERIAL_PROTOCOLLN(gcode_LastN + 1);
ClearToSend();
@ -1088,7 +1081,7 @@ void prepare_move()
if (destination[Z_AXIS] > Z_MAX_LENGTH) destination[Z_AXIS] = Z_MAX_LENGTH;
}
plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], feedrate*feedmultiply/60/100.0);
plan_buffer_line(destination[X_AXIS], destination[Y_AXIS], destination[Z_AXIS], destination[E_AXIS], feedrate*feedmultiply/60/100.0, active_extruder);
for(int8_t i=0; i < NUM_AXIS; i++) {
current_position[i] = destination[i];
}
@ -1098,7 +1091,7 @@ void prepare_arc_move(char isclockwise) {
float r = hypot(offset[X_AXIS], offset[Y_AXIS]); // Compute arc radius for mc_arc
// Trace the arc
mc_arc(current_position, destination, offset, X_AXIS, Y_AXIS, Z_AXIS, feedrate*feedmultiply/60/100.0, r, isclockwise);
mc_arc(current_position, destination, offset, X_AXIS, Y_AXIS, Z_AXIS, feedrate*feedmultiply/60/100.0, r, isclockwise, active_extruder);
// As far as the parser is concerned, the position is now == target. In reality the
// motion control system might still be processing the action and the real tool position
@ -1108,10 +1101,6 @@ void prepare_arc_move(char isclockwise) {
}
}
void manage_inactivity(byte debug)
{
if( (millis()-previous_millis_cmd) > max_inactive_time )

213
Marlin/MarlinSerial.cpp Normal file
View file

@ -0,0 +1,213 @@
/*
HardwareSerial.cpp - Hardware serial library for Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Modified 23 November 2006 by David A. Mellis
Modified 28 September 2010 by Mark Sproul
*/
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <inttypes.h>
#include "wiring.h"
#include "wiring_private.h"
// this next line disables the entire HardwareSerial.cpp,
// this is so I can support Attiny series and any other chip without a uart
#if defined(UBRRH) || defined(UBRR0H) || defined(UBRR1H) || defined(UBRR2H) || defined(UBRR3H)
#include "MarlinSerial.h"
// Define constants and variables for buffering incoming serial data. We're
// using a ring buffer (I think), in which rx_buffer_head is the index of the
// location to which to write the next incoming character and rx_buffer_tail
// is the index of the location from which to read.
#define RX_BUFFER_SIZE 128
struct ring_buffer
{
unsigned char buffer[RX_BUFFER_SIZE];
int head;
int tail;
};
#if defined(UBRRH) || defined(UBRR0H)
ring_buffer rx_buffer = { { 0 }, 0, 0 };
#endif
inline void store_char(unsigned char c, ring_buffer *rx_buffer)
{
int i = (unsigned int)(rx_buffer->head + 1) % RX_BUFFER_SIZE;
// if we should be storing the received character into the location
// just before the tail (meaning that the head would advance to the
// current location of the tail), we're about to overflow the buffer
// and so we don't write the character or advance the head.
if (i != rx_buffer->tail) {
rx_buffer->buffer[rx_buffer->head] = c;
rx_buffer->head = i;
}
}
//#elif defined(SIG_USART_RECV)
#if defined(USART0_RX_vect)
// fixed by Mark Sproul this is on the 644/644p
//SIGNAL(SIG_USART_RECV)
SIGNAL(USART0_RX_vect)
{
#if defined(UDR0)
unsigned char c = UDR0;
#elif defined(UDR)
unsigned char c = UDR; // atmega8, atmega32
#else
#error UDR not defined
#endif
store_char(c, &rx_buffer);
}
#endif
// Constructors ////////////////////////////////////////////////////////////////
MarlinSerial::MarlinSerial(ring_buffer *rx_buffer,
volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
volatile uint8_t *udr,
uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre, uint8_t u2x)
{
_rx_buffer = rx_buffer;
_ubrrh = ubrrh;
_ubrrl = ubrrl;
_ucsra = ucsra;
_ucsrb = ucsrb;
_udr = udr;
_rxen = rxen;
_txen = txen;
_rxcie = rxcie;
_udre = udre;
_u2x = u2x;
}
// Public Methods //////////////////////////////////////////////////////////////
void MarlinSerial::begin(long baud)
{
uint16_t baud_setting;
bool use_u2x = true;
#if F_CPU == 16000000UL
// hardcoded exception for compatibility with the bootloader shipped
// with the Duemilanove and previous boards and the firmware on the 8U2
// on the Uno and Mega 2560.
if (baud == 57600) {
use_u2x = false;
}
#endif
if (use_u2x) {
*_ucsra = 1 << _u2x;
baud_setting = (F_CPU / 4 / baud - 1) / 2;
} else {
*_ucsra = 0;
baud_setting = (F_CPU / 8 / baud - 1) / 2;
}
// assign the baud_setting, a.k.a. ubbr (USART Baud Rate Register)
*_ubrrh = baud_setting >> 8;
*_ubrrl = baud_setting;
sbi(*_ucsrb, _rxen);
sbi(*_ucsrb, _txen);
sbi(*_ucsrb, _rxcie);
}
void MarlinSerial::end()
{
cbi(*_ucsrb, _rxen);
cbi(*_ucsrb, _txen);
cbi(*_ucsrb, _rxcie);
}
int MarlinSerial::available(void)
{
return (unsigned int)(RX_BUFFER_SIZE + _rx_buffer->head - _rx_buffer->tail) % RX_BUFFER_SIZE;
}
int MarlinSerial::peek(void)
{
if (_rx_buffer->head == _rx_buffer->tail) {
return -1;
} else {
return _rx_buffer->buffer[_rx_buffer->tail];
}
}
int MarlinSerial::read(void)
{
// if the head isn't ahead of the tail, we don't have any characters
if (_rx_buffer->head == _rx_buffer->tail) {
return -1;
} else {
unsigned char c = _rx_buffer->buffer[_rx_buffer->tail];
_rx_buffer->tail = (unsigned int)(_rx_buffer->tail + 1) % RX_BUFFER_SIZE;
return c;
}
}
void MarlinSerial::flush()
{
// don't reverse this or there may be problems if the RX interrupt
// occurs after reading the value of rx_buffer_head but before writing
// the value to rx_buffer_tail; the previous value of rx_buffer_head
// may be written to rx_buffer_tail, making it appear as if the buffer
// don't reverse this or there may be problems if the RX interrupt
// occurs after reading the value of rx_buffer_head but before writing
// the value to rx_buffer_tail; the previous value of rx_buffer_head
// may be written to rx_buffer_tail, making it appear as if the buffer
// were full, not empty.
_rx_buffer->head = _rx_buffer->tail;
}
void MarlinSerial::write(uint8_t c)
{
while (!((*_ucsra) & (1 << _udre)))
;
*_udr = c;
}
void MarlinSerial::checkRx()
{
if((UCSR0A & (1<<RXC0)) != 0) {
unsigned char c = UDR0;
store_char(c, &rx_buffer);
}
}
// Preinstantiate Objects //////////////////////////////////////////////////////
#if defined(UBRR0H) && defined(UBRR0L)
MarlinSerial MSerial(&rx_buffer, &UBRR0H, &UBRR0L, &UCSR0A, &UCSR0B, &UDR0, RXEN0, TXEN0, RXCIE0, UDRE0, U2X0);
#else
#error no serial port defined (port 0)
#endif
#endif // whole file

66
Marlin/MarlinSerial.h Normal file
View file

@ -0,0 +1,66 @@
/*
HardwareSerial.h - Hardware serial library for Wiring
Copyright (c) 2006 Nicholas Zambetti. All right reserved.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
Modified 28 September 2010 by Mark Sproul
*/
#ifndef MarlinSerial_h
#define MarlinSerial_h
#include <inttypes.h>
#include "Stream.h"
struct ring_buffer;
class MarlinSerial : public Stream
{
private:
ring_buffer *_rx_buffer;
volatile uint8_t *_ubrrh;
volatile uint8_t *_ubrrl;
volatile uint8_t *_ucsra;
volatile uint8_t *_ucsrb;
volatile uint8_t *_udr;
uint8_t _rxen;
uint8_t _txen;
uint8_t _rxcie;
uint8_t _udre;
uint8_t _u2x;
public:
MarlinSerial(ring_buffer *rx_buffer,
volatile uint8_t *ubrrh, volatile uint8_t *ubrrl,
volatile uint8_t *ucsra, volatile uint8_t *ucsrb,
volatile uint8_t *udr,
uint8_t rxen, uint8_t txen, uint8_t rxcie, uint8_t udre, uint8_t u2x);
void begin(long);
void end();
virtual int available(void);
virtual int peek(void);
virtual int read(void);
virtual void flush(void);
virtual void write(uint8_t);
virtual void checkRx(void);
using Print::write; // pull in write(str) and write(buf, size) from Print
};
#if defined(UBRRH) || defined(UBRR0H)
extern MarlinSerial MSerial;
#endif
#endif

1283
Marlin/Sd2Card.cpp
View file

@ -1,642 +1,643 @@
/* Arduino Sd2Card Library
* Copyright (C) 2009 by William Greiman
*
* This file is part of the Arduino Sd2Card Library
*
* This Library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Arduino Sd2Card Library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#if ARDUINO < 100
#include <WProgram.h>
#else // ARDUINO
#include <Arduino.h>
#endif // ARDUINO
#include "Sd2Card.h"
//------------------------------------------------------------------------------
#ifndef SOFTWARE_SPI
// functions for hardware SPI
//------------------------------------------------------------------------------
// make sure SPCR rate is in expected bits
#if (SPR0 != 0 || SPR1 != 1)
#error unexpected SPCR bits
#endif
/**
* Initialize hardware SPI
* Set SCK rate to F_CPU/pow(2, 1 + spiRate) for spiRate [0,6]
*/
static void spiInit(uint8_t spiRate) {
// See avr processor documentation
SPCR = (1 << SPE) | (1 << MSTR) | (spiRate >> 1);
SPSR = spiRate & 1 || spiRate == 6 ? 0 : 1 << SPI2X;
}
//------------------------------------------------------------------------------
/** SPI receive a byte */
static uint8_t spiRec() {
SPDR = 0XFF;
while (!(SPSR & (1 << SPIF)));
return SPDR;
}
//------------------------------------------------------------------------------
/** SPI read data - only one call so force inline */
static inline __attribute__((always_inline))
void spiRead(uint8_t* buf, uint16_t nbyte) {
if (nbyte-- == 0) return;
SPDR = 0XFF;
for (uint16_t i = 0; i < nbyte; i++) {
while (!(SPSR & (1 << SPIF)));
buf[i] = SPDR;
SPDR = 0XFF;
}
while (!(SPSR & (1 << SPIF)));
buf[nbyte] = SPDR;
}
//------------------------------------------------------------------------------
/** SPI send a byte */
static void spiSend(uint8_t b) {
SPDR = b;
while (!(SPSR & (1 << SPIF)));
}
//------------------------------------------------------------------------------
/** SPI send block - only one call so force inline */
static inline __attribute__((always_inline))
void spiSendBlock(uint8_t token, const uint8_t* buf) {
SPDR = token;
for (uint16_t i = 0; i < 512; i += 2) {
while (!(SPSR & (1 << SPIF)));
SPDR = buf[i];
while (!(SPSR & (1 << SPIF)));
SPDR = buf[i + 1];
}
while (!(SPSR & (1 << SPIF)));
}
//------------------------------------------------------------------------------
#else // SOFTWARE_SPI
//------------------------------------------------------------------------------
/** nop to tune soft SPI timing */
#define nop asm volatile ("nop\n\t")
//------------------------------------------------------------------------------
/** Soft SPI receive byte */
static uint8_t spiRec() {
uint8_t data = 0;
// no interrupts during byte receive - about 8 us
cli();
// output pin high - like sending 0XFF
fastDigitalWrite(SPI_MOSI_PIN, HIGH);
for (uint8_t i = 0; i < 8; i++) {
fastDigitalWrite(SPI_SCK_PIN, HIGH);
// adjust so SCK is nice
nop;
nop;
data <<= 1;
if (fastDigitalRead(SPI_MISO_PIN)) data |= 1;
fastDigitalWrite(SPI_SCK_PIN, LOW);
}
// enable interrupts
sei();
return data;
}
//------------------------------------------------------------------------------
/** Soft SPI read data */
static void spiRead(uint8_t* buf, uint16_t nbyte) {
for (uint16_t i = 0; i < nbyte; i++) {
buf[i] = spiRec();
}
}
//------------------------------------------------------------------------------
/** Soft SPI send byte */
static void spiSend(uint8_t data) {
// no interrupts during byte send - about 8 us
cli();
for (uint8_t i = 0; i < 8; i++) {
fastDigitalWrite(SPI_SCK_PIN, LOW);
fastDigitalWrite(SPI_MOSI_PIN, data & 0X80);
data <<= 1;
fastDigitalWrite(SPI_SCK_PIN, HIGH);
}
// hold SCK high for a few ns
nop;
nop;
nop;
nop;
fastDigitalWrite(SPI_SCK_PIN, LOW);
// enable interrupts
sei();
}
//------------------------------------------------------------------------------
/** Soft SPI send block */
void spiSendBlock(uint8_t token, const uint8_t* buf) {
spiSend(token);
for (uint16_t i = 0; i < 512; i++) {
spiSend(buf[i]);
}
}
#endif // SOFTWARE_SPI
//------------------------------------------------------------------------------
// send command and return error code. Return zero for OK
uint8_t Sd2Card::cardCommand(uint8_t cmd, uint32_t arg) {
// select card
chipSelectLow();
// wait up to 300 ms if busy
waitNotBusy(300);
// send command
spiSend(cmd | 0x40);
// send argument
for (int8_t s = 24; s >= 0; s -= 8) spiSend(arg >> s);
// 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);
// skip stuff byte for stop read
if (cmd == CMD12) spiRec();
// wait for response
for (uint8_t i = 0; ((status_ = spiRec()) & 0X80) && i != 0XFF; i++);
return status_;
}
//------------------------------------------------------------------------------
/**
* Determine the size of an SD flash memory card.
*
* \return The number of 512 byte data blocks in the card
* or zero if an error occurs.
*/
uint32_t Sd2Card::cardSize() {
csd_t csd;
if (!readCSD(&csd)) return 0;
if (csd.v1.csd_ver == 0) {
uint8_t read_bl_len = csd.v1.read_bl_len;
uint16_t c_size = (csd.v1.c_size_high << 10)
| (csd.v1.c_size_mid << 2) | csd.v1.c_size_low;
uint8_t c_size_mult = (csd.v1.c_size_mult_high << 1)
| csd.v1.c_size_mult_low;
return (uint32_t)(c_size + 1) << (c_size_mult + read_bl_len - 7);
} else if (csd.v2.csd_ver == 1) {
uint32_t c_size = ((uint32_t)csd.v2.c_size_high << 16)
| (csd.v2.c_size_mid << 8) | csd.v2.c_size_low;
return (c_size + 1) << 10;
} else {
error(SD_CARD_ERROR_BAD_CSD);
return 0;
}
}
//------------------------------------------------------------------------------
void Sd2Card::chipSelectHigh() {
digitalWrite(chipSelectPin_, HIGH);
}
//------------------------------------------------------------------------------
void Sd2Card::chipSelectLow() {
#ifndef SOFTWARE_SPI
spiInit(spiRate_);
#endif // SOFTWARE_SPI
digitalWrite(chipSelectPin_, LOW);
}
//------------------------------------------------------------------------------
/** Erase a range of blocks.
*
* \param[in] firstBlock The address of the first block in the range.
* \param[in] lastBlock The address of the last block in the range.
*
* \note This function requests the SD card to do a flash erase for a
* range of blocks. The data on the card after an erase operation is
* either 0 or 1, depends on the card vendor. The card must support
* single block erase.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::erase(uint32_t firstBlock, uint32_t lastBlock) {
csd_t csd;
if (!readCSD(&csd)) goto fail;
// check for single block erase
if (!csd.v1.erase_blk_en) {
// erase size mask
uint8_t m = (csd.v1.sector_size_high << 1) | csd.v1.sector_size_low;
if ((firstBlock & m) != 0 || ((lastBlock + 1) & m) != 0) {
// error card can't erase specified area
error(SD_CARD_ERROR_ERASE_SINGLE_BLOCK);
goto fail;
}
}
if (type_ != SD_CARD_TYPE_SDHC) {
firstBlock <<= 9;
lastBlock <<= 9;
}
if (cardCommand(CMD32, firstBlock)
|| cardCommand(CMD33, lastBlock)
|| cardCommand(CMD38, 0)) {
error(SD_CARD_ERROR_ERASE);
goto fail;
}
if (!waitNotBusy(SD_ERASE_TIMEOUT)) {
error(SD_CARD_ERROR_ERASE_TIMEOUT);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Determine if card supports single block erase.
*
* \return The value one, true, is returned if single block erase is supported.
* The value zero, false, is returned if single block erase is not supported.
*/
bool Sd2Card::eraseSingleBlockEnable() {
csd_t csd;
return readCSD(&csd) ? csd.v1.erase_blk_en : false;
}
//------------------------------------------------------------------------------
/**
* 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);
#ifndef SOFTWARE_SPI
// 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
// set SCK rate for initialization commands
spiRate_ = SPI_SD_INIT_RATE;
spiInit(spiRate_);
#endif // SOFTWARE_SPI
// 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();
#ifndef SOFTWARE_SPI
return setSckRate(sckRateID);
#else // SOFTWARE_SPI
return true;
#endif // SOFTWARE_SPI
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/**
* Read a 512 byte block from an SD card.
*
* \param[in] blockNumber Logical block to be read.
* \param[out] dst Pointer to the location that will receive the data.
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readBlock(uint32_t blockNumber, uint8_t* dst) {
// use address if not SDHC card
if (type()!= SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD17, blockNumber)) {
error(SD_CARD_ERROR_CMD17);
goto fail;
}
return readData(dst, 512);
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Read one data block in a multiple block read sequence
*
* \param[in] dst Pointer to the location for the data to be read.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readData(uint8_t *dst) {
chipSelectLow();
return readData(dst, 512);
}
//------------------------------------------------------------------------------
bool Sd2Card::readData(uint8_t* dst, uint16_t count) {
// wait for start block token
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;
}
// transfer data
spiRead(dst, count);
// discard CRC
spiRec();
spiRec();
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** read CID or CSR register */
bool Sd2Card::readRegister(uint8_t cmd, void* buf) {
uint8_t* dst = reinterpret_cast<uint8_t*>(buf);
if (cardCommand(cmd, 0)) {
error(SD_CARD_ERROR_READ_REG);
goto fail;
}
return readData(dst, 16);
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Start a read multiple blocks sequence.
*
* \param[in] blockNumber Address of first block in sequence.
*
* \note This function is used with readData() and readStop() for optimized
* multiple block reads. SPI chipSelect must be low for the entire sequence.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readStart(uint32_t blockNumber) {
if (type()!= SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD18, blockNumber)) {
error(SD_CARD_ERROR_CMD18);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** End a read multiple blocks sequence.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readStop() {
chipSelectLow();
if (cardCommand(CMD12, 0)) {
error(SD_CARD_ERROR_CMD12);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/**
* Set the SPI clock rate.
*
* \param[in] sckRateID A value in the range [0, 6].
*
* The SPI clock will be set to F_CPU/pow(2, 1 + sckRateID). The maximum
* SPI rate is F_CPU/2 for \a sckRateID = 0 and the minimum rate is F_CPU/128
* for \a scsRateID = 6.
*
* \return The value one, true, is returned for success and the value zero,
* false, is returned for an invalid value of \a sckRateID.
*/
bool Sd2Card::setSckRate(uint8_t sckRateID) {
if (sckRateID > 6) {
error(SD_CARD_ERROR_SCK_RATE);
return false;
}
spiRate_ = sckRateID;
return true;
}
//------------------------------------------------------------------------------
// wait for card to go not busy
bool Sd2Card::waitNotBusy(uint16_t timeoutMillis) {
uint16_t t0 = millis();
while (spiRec() != 0XFF) {
if (((uint16_t)millis() - t0) >= timeoutMillis) goto fail;
}
return true;
fail:
return false;
}
//------------------------------------------------------------------------------
/**
* 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.
*/
bool Sd2Card::writeBlock(uint32_t blockNumber, const uint8_t* src) {
// use address if not SDHC card
if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD24, blockNumber)) {
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);
goto fail;
}
// response is r2 so get and check two bytes for nonzero
if (cardCommand(CMD13, 0) || spiRec()) {
error(SD_CARD_ERROR_WRITE_PROGRAMMING);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Write one data block in a multiple block write sequence
* \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.
*/
bool Sd2Card::writeData(const uint8_t* src) {
chipSelectLow();
// wait for previous write to finish
if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
if (!writeData(WRITE_MULTIPLE_TOKEN, src)) goto fail;
chipSelectHigh();
return true;
fail:
error(SD_CARD_ERROR_WRITE_MULTIPLE);
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
// send one block of data for write block or write multiple blocks
bool Sd2Card::writeData(uint8_t token, const uint8_t* src) {
spiSendBlock(token, src);
spiSend(0xff); // dummy crc
spiSend(0xff); // dummy crc
status_ = spiRec();
if ((status_ & DATA_RES_MASK) != DATA_RES_ACCEPTED) {
error(SD_CARD_ERROR_WRITE);
goto fail;
}
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Start a write multiple blocks sequence.
*
* \param[in] blockNumber Address of first block in sequence.
* \param[in] eraseCount The number of blocks to be pre-erased.
*
* \note This function is used with writeData() and writeStop()
* for optimized multiple block writes.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::writeStart(uint32_t blockNumber, uint32_t eraseCount) {
// send pre-erase count
if (cardAcmd(ACMD23, eraseCount)) {
error(SD_CARD_ERROR_ACMD23);
goto fail;
}
// use address if not SDHC card
if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD25, blockNumber)) {
error(SD_CARD_ERROR_CMD25);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** End a write multiple blocks sequence.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::writeStop() {
chipSelectLow();
if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
spiSend(STOP_TRAN_TOKEN);
if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
chipSelectHigh();
return true;
fail:
error(SD_CARD_ERROR_STOP_TRAN);
chipSelectHigh();
return false;
/* Arduino Sd2Card Library
* Copyright (C) 2009 by William Greiman
*
* This file is part of the Arduino Sd2Card Library
*
* This Library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with the Arduino Sd2Card Library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#if ARDUINO < 100
#define HardwareSerial_h // trick to disable the standard HWserial
#include <WProgram.h>
#else // ARDUINO
#include <Arduino.h>
#endif // ARDUINO
#include "Sd2Card.h"
//------------------------------------------------------------------------------
#ifndef SOFTWARE_SPI
// functions for hardware SPI
//------------------------------------------------------------------------------
// make sure SPCR rate is in expected bits
#if (SPR0 != 0 || SPR1 != 1)
#error unexpected SPCR bits
#endif
/**
* Initialize hardware SPI
* Set SCK rate to F_CPU/pow(2, 1 + spiRate) for spiRate [0,6]
*/
static void spiInit(uint8_t spiRate) {
// See avr processor documentation
SPCR = (1 << SPE) | (1 << MSTR) | (spiRate >> 1);
SPSR = spiRate & 1 || spiRate == 6 ? 0 : 1 << SPI2X;
}
//------------------------------------------------------------------------------
/** SPI receive a byte */
static uint8_t spiRec() {
SPDR = 0XFF;
while (!(SPSR & (1 << SPIF)));
return SPDR;
}
//------------------------------------------------------------------------------
/** SPI read data - only one call so force inline */
static inline __attribute__((always_inline))
void spiRead(uint8_t* buf, uint16_t nbyte) {
if (nbyte-- == 0) return;
SPDR = 0XFF;
for (uint16_t i = 0; i < nbyte; i++) {
while (!(SPSR & (1 << SPIF)));
buf[i] = SPDR;
SPDR = 0XFF;
}
while (!(SPSR & (1 << SPIF)));
buf[nbyte] = SPDR;
}
//------------------------------------------------------------------------------
/** SPI send a byte */
static void spiSend(uint8_t b) {
SPDR = b;
while (!(SPSR & (1 << SPIF)));
}
//------------------------------------------------------------------------------
/** SPI send block - only one call so force inline */
static inline __attribute__((always_inline))
void spiSendBlock(uint8_t token, const uint8_t* buf) {
SPDR = token;
for (uint16_t i = 0; i < 512; i += 2) {
while (!(SPSR & (1 << SPIF)));
SPDR = buf[i];
while (!(SPSR & (1 << SPIF)));
SPDR = buf[i + 1];
}
while (!(SPSR & (1 << SPIF)));
}
//------------------------------------------------------------------------------
#else // SOFTWARE_SPI
//------------------------------------------------------------------------------
/** nop to tune soft SPI timing */
#define nop asm volatile ("nop\n\t")
//------------------------------------------------------------------------------
/** Soft SPI receive byte */
static uint8_t spiRec() {
uint8_t data = 0;
// no interrupts during byte receive - about 8 us
cli();
// output pin high - like sending 0XFF
fastDigitalWrite(SPI_MOSI_PIN, HIGH);
for (uint8_t i = 0; i < 8; i++) {
fastDigitalWrite(SPI_SCK_PIN, HIGH);
// adjust so SCK is nice
nop;
nop;
data <<= 1;
if (fastDigitalRead(SPI_MISO_PIN)) data |= 1;
fastDigitalWrite(SPI_SCK_PIN, LOW);
}
// enable interrupts
sei();
return data;
}
//------------------------------------------------------------------------------
/** Soft SPI read data */
static void spiRead(uint8_t* buf, uint16_t nbyte) {
for (uint16_t i = 0; i < nbyte; i++) {
buf[i] = spiRec();
}
}
//------------------------------------------------------------------------------
/** Soft SPI send byte */
static void spiSend(uint8_t data) {
// no interrupts during byte send - about 8 us
cli();
for (uint8_t i = 0; i < 8; i++) {
fastDigitalWrite(SPI_SCK_PIN, LOW);
fastDigitalWrite(SPI_MOSI_PIN, data & 0X80);
data <<= 1;
fastDigitalWrite(SPI_SCK_PIN, HIGH);
}
// hold SCK high for a few ns
nop;
nop;
nop;
nop;
fastDigitalWrite(SPI_SCK_PIN, LOW);
// enable interrupts
sei();
}
//------------------------------------------------------------------------------
/** Soft SPI send block */
void spiSendBlock(uint8_t token, const uint8_t* buf) {
spiSend(token);
for (uint16_t i = 0; i < 512; i++) {
spiSend(buf[i]);
}
}
#endif // SOFTWARE_SPI
//------------------------------------------------------------------------------
// send command and return error code. Return zero for OK
uint8_t Sd2Card::cardCommand(uint8_t cmd, uint32_t arg) {
// select card
chipSelectLow();
// wait up to 300 ms if busy
waitNotBusy(300);
// send command
spiSend(cmd | 0x40);
// send argument
for (int8_t s = 24; s >= 0; s -= 8) spiSend(arg >> s);
// 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);
// skip stuff byte for stop read
if (cmd == CMD12) spiRec();
// wait for response
for (uint8_t i = 0; ((status_ = spiRec()) & 0X80) && i != 0XFF; i++);
return status_;
}
//------------------------------------------------------------------------------
/**
* Determine the size of an SD flash memory card.
*
* \return The number of 512 byte data blocks in the card
* or zero if an error occurs.
*/
uint32_t Sd2Card::cardSize() {
csd_t csd;
if (!readCSD(&csd)) return 0;
if (csd.v1.csd_ver == 0) {
uint8_t read_bl_len = csd.v1.read_bl_len;
uint16_t c_size = (csd.v1.c_size_high << 10)
| (csd.v1.c_size_mid << 2) | csd.v1.c_size_low;
uint8_t c_size_mult = (csd.v1.c_size_mult_high << 1)
| csd.v1.c_size_mult_low;
return (uint32_t)(c_size + 1) << (c_size_mult + read_bl_len - 7);
} else if (csd.v2.csd_ver == 1) {
uint32_t c_size = ((uint32_t)csd.v2.c_size_high << 16)
| (csd.v2.c_size_mid << 8) | csd.v2.c_size_low;
return (c_size + 1) << 10;
} else {
error(SD_CARD_ERROR_BAD_CSD);
return 0;
}
}
//------------------------------------------------------------------------------
void Sd2Card::chipSelectHigh() {
digitalWrite(chipSelectPin_, HIGH);
}
//------------------------------------------------------------------------------
void Sd2Card::chipSelectLow() {
#ifndef SOFTWARE_SPI
spiInit(spiRate_);
#endif // SOFTWARE_SPI
digitalWrite(chipSelectPin_, LOW);
}
//------------------------------------------------------------------------------
/** Erase a range of blocks.
*
* \param[in] firstBlock The address of the first block in the range.
* \param[in] lastBlock The address of the last block in the range.
*
* \note This function requests the SD card to do a flash erase for a
* range of blocks. The data on the card after an erase operation is
* either 0 or 1, depends on the card vendor. The card must support
* single block erase.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::erase(uint32_t firstBlock, uint32_t lastBlock) {
csd_t csd;
if (!readCSD(&csd)) goto fail;
// check for single block erase
if (!csd.v1.erase_blk_en) {
// erase size mask
uint8_t m = (csd.v1.sector_size_high << 1) | csd.v1.sector_size_low;
if ((firstBlock & m) != 0 || ((lastBlock + 1) & m) != 0) {
// error card can't erase specified area
error(SD_CARD_ERROR_ERASE_SINGLE_BLOCK);
goto fail;
}
}
if (type_ != SD_CARD_TYPE_SDHC) {
firstBlock <<= 9;
lastBlock <<= 9;
}
if (cardCommand(CMD32, firstBlock)
|| cardCommand(CMD33, lastBlock)
|| cardCommand(CMD38, 0)) {
error(SD_CARD_ERROR_ERASE);
goto fail;
}
if (!waitNotBusy(SD_ERASE_TIMEOUT)) {
error(SD_CARD_ERROR_ERASE_TIMEOUT);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Determine if card supports single block erase.
*
* \return The value one, true, is returned if single block erase is supported.
* The value zero, false, is returned if single block erase is not supported.
*/
bool Sd2Card::eraseSingleBlockEnable() {
csd_t csd;
return readCSD(&csd) ? csd.v1.erase_blk_en : false;
}
//------------------------------------------------------------------------------
/**
* 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);
#ifndef SOFTWARE_SPI
// 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
// set SCK rate for initialization commands
spiRate_ = SPI_SD_INIT_RATE;
spiInit(spiRate_);
#endif // SOFTWARE_SPI
// 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();
#ifndef SOFTWARE_SPI
return setSckRate(sckRateID);
#else // SOFTWARE_SPI
return true;
#endif // SOFTWARE_SPI
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/**
* Read a 512 byte block from an SD card.
*
* \param[in] blockNumber Logical block to be read.
* \param[out] dst Pointer to the location that will receive the data.
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readBlock(uint32_t blockNumber, uint8_t* dst) {
// use address if not SDHC card
if (type()!= SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD17, blockNumber)) {
error(SD_CARD_ERROR_CMD17);
goto fail;
}
return readData(dst, 512);
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Read one data block in a multiple block read sequence
*
* \param[in] dst Pointer to the location for the data to be read.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readData(uint8_t *dst) {
chipSelectLow();
return readData(dst, 512);
}
//------------------------------------------------------------------------------
bool Sd2Card::readData(uint8_t* dst, uint16_t count) {
// wait for start block token
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;
}
// transfer data
spiRead(dst, count);
// discard CRC
spiRec();
spiRec();
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** read CID or CSR register */
bool Sd2Card::readRegister(uint8_t cmd, void* buf) {
uint8_t* dst = reinterpret_cast<uint8_t*>(buf);
if (cardCommand(cmd, 0)) {
error(SD_CARD_ERROR_READ_REG);
goto fail;
}
return readData(dst, 16);
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Start a read multiple blocks sequence.
*
* \param[in] blockNumber Address of first block in sequence.
*
* \note This function is used with readData() and readStop() for optimized
* multiple block reads. SPI chipSelect must be low for the entire sequence.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readStart(uint32_t blockNumber) {
if (type()!= SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD18, blockNumber)) {
error(SD_CARD_ERROR_CMD18);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** End a read multiple blocks sequence.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::readStop() {
chipSelectLow();
if (cardCommand(CMD12, 0)) {
error(SD_CARD_ERROR_CMD12);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/**
* Set the SPI clock rate.
*
* \param[in] sckRateID A value in the range [0, 6].
*
* The SPI clock will be set to F_CPU/pow(2, 1 + sckRateID). The maximum
* SPI rate is F_CPU/2 for \a sckRateID = 0 and the minimum rate is F_CPU/128
* for \a scsRateID = 6.
*
* \return The value one, true, is returned for success and the value zero,
* false, is returned for an invalid value of \a sckRateID.
*/
bool Sd2Card::setSckRate(uint8_t sckRateID) {
if (sckRateID > 6) {
error(SD_CARD_ERROR_SCK_RATE);
return false;
}
spiRate_ = sckRateID;
return true;
}
//------------------------------------------------------------------------------
// wait for card to go not busy
bool Sd2Card::waitNotBusy(uint16_t timeoutMillis) {
uint16_t t0 = millis();
while (spiRec() != 0XFF) {
if (((uint16_t)millis() - t0) >= timeoutMillis) goto fail;
}
return true;
fail:
return false;
}
//------------------------------------------------------------------------------
/**
* 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.
*/
bool Sd2Card::writeBlock(uint32_t blockNumber, const uint8_t* src) {
// use address if not SDHC card
if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD24, blockNumber)) {
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);
goto fail;
}
// response is r2 so get and check two bytes for nonzero
if (cardCommand(CMD13, 0) || spiRec()) {
error(SD_CARD_ERROR_WRITE_PROGRAMMING);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Write one data block in a multiple block write sequence
* \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.
*/
bool Sd2Card::writeData(const uint8_t* src) {
chipSelectLow();
// wait for previous write to finish
if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
if (!writeData(WRITE_MULTIPLE_TOKEN, src)) goto fail;
chipSelectHigh();
return true;
fail:
error(SD_CARD_ERROR_WRITE_MULTIPLE);
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
// send one block of data for write block or write multiple blocks
bool Sd2Card::writeData(uint8_t token, const uint8_t* src) {
spiSendBlock(token, src);
spiSend(0xff); // dummy crc
spiSend(0xff); // dummy crc
status_ = spiRec();
if ((status_ & DATA_RES_MASK) != DATA_RES_ACCEPTED) {
error(SD_CARD_ERROR_WRITE);
goto fail;
}
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** Start a write multiple blocks sequence.
*
* \param[in] blockNumber Address of first block in sequence.
* \param[in] eraseCount The number of blocks to be pre-erased.
*
* \note This function is used with writeData() and writeStop()
* for optimized multiple block writes.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::writeStart(uint32_t blockNumber, uint32_t eraseCount) {
// send pre-erase count
if (cardAcmd(ACMD23, eraseCount)) {
error(SD_CARD_ERROR_ACMD23);
goto fail;
}
// use address if not SDHC card
if (type() != SD_CARD_TYPE_SDHC) blockNumber <<= 9;
if (cardCommand(CMD25, blockNumber)) {
error(SD_CARD_ERROR_CMD25);
goto fail;
}
chipSelectHigh();
return true;
fail:
chipSelectHigh();
return false;
}
//------------------------------------------------------------------------------
/** End a write multiple blocks sequence.
*
* \return The value one, true, is returned for success and
* the value zero, false, is returned for failure.
*/
bool Sd2Card::writeStop() {
chipSelectLow();
if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
spiSend(STOP_TRAN_TOKEN);
if (!waitNotBusy(SD_WRITE_TIMEOUT)) goto fail;
chipSelectHigh();
return true;
fail:
error(SD_CARD_ERROR_STOP_TRAN);
chipSelectHigh();
return false;
}

10
Marlin/SdBaseFile.cpp
View file

@ -306,7 +306,7 @@ void SdBaseFile::getpos(fpos_t* pos) {
* LS_R - Recursive list of subdirectories.
*/
void SdBaseFile::ls(uint8_t flags) {
ls(&Serial, flags, 0);
ls(&MSerial, flags, 0);
}
//------------------------------------------------------------------------------
/** List directory contents.
@ -949,7 +949,7 @@ int SdBaseFile::peek() {
*/
void SdBaseFile::printDirName(const dir_t& dir,
uint8_t width, bool printSlash) {
printDirName(&Serial, dir, width, printSlash);
printDirName(&MSerial, dir, width, printSlash);
}
//------------------------------------------------------------------------------
/** %Print the name field of a directory entry in 8.3 format.
@ -993,7 +993,7 @@ static void print2u(Print* pr, uint8_t v) {
* \param[in] fatDate The date field from a directory entry.
*/
void SdBaseFile::printFatDate(uint16_t fatDate) {
printFatDate(&Serial, fatDate);
printFatDate(&MSerial, fatDate);
}
//------------------------------------------------------------------------------
/** %Print a directory date field.
@ -1018,7 +1018,7 @@ void SdBaseFile::printFatDate(Print* pr, uint16_t fatDate) {
* \param[in] fatTime The time field from a directory entry.
*/
void SdBaseFile::printFatTime(uint16_t fatTime) {
printFatTime(&Serial, fatTime);
printFatTime(&MSerial, fatTime);
}
//------------------------------------------------------------------------------
/** %Print a directory time field.
@ -1044,7 +1044,7 @@ void SdBaseFile::printFatTime(Print* pr, uint16_t fatTime) {
bool SdBaseFile::printName() {
char name[13];
if (!getFilename(name)) return false;
Serial.print(name);
MSerial.print(name);
return true;
}
//------------------------------------------------------------------------------

2
Marlin/SdBaseFile.h
View file

@ -25,7 +25,9 @@
*/
#include <avr/pgmspace.h>
#if ARDUINO < 100
#define HardwareSerial_h // trick to disable the standard HWserial
#include <WProgram.h>
#include "MarlinSerial.h"
#else // ARDUINO
#include <Arduino.h>
#endif // ARDUINO

4
Marlin/SdFatUtil.cpp
View file

@ -62,7 +62,7 @@ void SdFatUtil::println_P(Print* pr, PGM_P str) {
* \param[in] str Pointer to string stored in flash memory.
*/
void SdFatUtil::SerialPrint_P(PGM_P str) {
print_P(&Serial, str);
print_P(&MSerial, str);
}
//------------------------------------------------------------------------------
/** %Print a string in flash memory to Serial followed by a CR/LF.
@ -70,5 +70,5 @@ void SdFatUtil::SerialPrint_P(PGM_P str) {
* \param[in] str Pointer to string stored in flash memory.
*/
void SdFatUtil::SerialPrintln_P(PGM_P str) {
println_P(&Serial, str);
println_P(&MSerial, str);
}

92
Marlin/SdFatUtil.h
View file

@ -1,46 +1,48 @@
/* Arduino SdFat Library
* Copyright (C) 2008 by William Greiman
*
* This file is part of the Arduino SdFat Library
*
* This Library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with the Arduino SdFat Library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef SdFatUtil_h
#define SdFatUtil_h
/**
* \file
* \brief Useful utility functions.
*/
#include <avr/pgmspace.h>
#if ARDUINO < 100
#include <WProgram.h>
#else // ARDUINO
#include <Arduino.h>
#endif // ARDUINO
/** Store and print a string in flash memory.*/
#define PgmPrint(x) SerialPrint_P(PSTR(x))
/** Store and print a string in flash memory followed by a CR/LF.*/
#define PgmPrintln(x) SerialPrintln_P(PSTR(x))
namespace SdFatUtil {
int FreeRam();
void print_P(Print* pr, PGM_P str);
void println_P(Print* pr, PGM_P str);
void SerialPrint_P(PGM_P str);
void SerialPrintln_P(PGM_P str);
}
using namespace SdFatUtil; // NOLINT
/* Arduino SdFat Library
* Copyright (C) 2008 by William Greiman
*
* This file is part of the Arduino SdFat Library
*
* This Library is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This Library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with the Arduino SdFat Library. If not, see
* <http://www.gnu.org/licenses/>.
*/
#ifndef SdFatUtil_h
#define SdFatUtil_h
/**
* \file
* \brief Useful utility functions.
*/
#include <avr/pgmspace.h>
#if ARDUINO < 100
#define HardwareSerial_h // trick to disable the standard HWserial
#include <WProgram.h>
#include "MarlinSerial.h"
#else // ARDUINO
#include <Arduino.h>
#endif // ARDUINO
/** Store and print a string in flash memory.*/
#define PgmPrint(x) SerialPrint_P(PSTR(x))
/** Store and print a string in flash memory followed by a CR/LF.*/
#define PgmPrintln(x) SerialPrintln_P(PSTR(x))
namespace SdFatUtil {
int FreeRam();
void print_P(Print* pr, PGM_P str);
void println_P(Print* pr, PGM_P str);
void SerialPrint_P(PGM_P str);
void SerialPrintln_P(PGM_P str);
}
using namespace SdFatUtil; // NOLINT
#endif // #define SdFatUtil_h

6
Marlin/motion_control.cpp
View file

@ -27,7 +27,7 @@
// The arc is approximated by generating a huge number of tiny, linear segments. The length of each
// segment is configured in settings.mm_per_arc_segment.
void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8_t axis_1,
uint8_t axis_linear, float feed_rate, float radius, uint8_t isclockwise)
uint8_t axis_linear, float feed_rate, float radius, uint8_t isclockwise, uint8_t extruder)
{
// int acceleration_manager_was_enabled = plan_is_acceleration_manager_enabled();
// plan_set_acceleration_manager_enabled(false); // disable acceleration management for the duration of the arc
@ -123,11 +123,11 @@ void mc_arc(float *position, float *target, float *offset, uint8_t axis_0, uint8
arc_target[axis_1] = center_axis1 + r_axis1;
arc_target[axis_linear] += linear_per_segment;
arc_target[E_AXIS] += extruder_per_segment;
plan_buffer_line(arc_target[X_AXIS], arc_target[Y_AXIS], arc_target[Z_AXIS], arc_target[E_AXIS], feed_rate);
plan_buffer_line(arc_target[X_AXIS], arc_target[Y_AXIS], arc_target[Z_AXIS], arc_target[E_AXIS], feed_rate, extruder);
}
// Ensure last segment arrives at target location.
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feed_rate);
plan_buffer_line(target[X_AXIS], target[Y_AXIS], target[Z_AXIS], target[E_AXIS], feed_rate, extruder);
// plan_set_acceleration_manager_enabled(acceleration_manager_was_enabled);
}

2
Marlin/motion_control.h
View file

@ -27,6 +27,6 @@
// the direction of helical travel, radius == circle radius, isclockwise boolean. Used
// for vector transformation direction.
void mc_arc(float *position, float *target, float *offset, unsigned char axis_0, unsigned char axis_1,
unsigned char axis_linear, float feed_rate, float radius, unsigned char isclockwise);
unsigned char axis_linear, float feed_rate, float radius, unsigned char isclockwise, uint8_t extruder);
#endif

6
Marlin/planner.cpp
View file

@ -451,7 +451,7 @@ float junction_deviation = 0.1;
// Add a new linear movement to the buffer. steps_x, _y and _z is the absolute position in
// mm. Microseconds specify how many microseconds the move should take to perform. To aid acceleration
// calculation the caller must also provide the physical length of the line in millimeters.
void plan_buffer_line(const float &x, const float &y, const float &z, const float &e, float feed_rate)
void plan_buffer_line(const float &x, const float &y, const float &z, const float &e, float feed_rate, const uint8_t &extruder)
{
// Calculate the buffer head after we push this byte
int next_buffer_head = next_block_index(block_buffer_head);
@ -527,12 +527,12 @@ void plan_buffer_line(const float &x, const float &y, const float &z, const floa
else {
if(feed_rate<minimumfeedrate) feed_rate=minimumfeedrate;
}
#ifdef SLOWDOWN
// slow down when de buffer starts to empty, rather than wait at the corner for a buffer refill
int moves_queued=(block_buffer_head-block_buffer_tail + BLOCK_BUFFER_SIZE) & (BLOCK_BUFFER_SIZE - 1);
if(moves_queued < (BLOCK_BUFFER_SIZE * 0.5)) feed_rate = feed_rate*moves_queued / (BLOCK_BUFFER_SIZE * 0.5);
if(moves_queued < (BLOCK_BUFFER_SIZE * 0.5) && moves_queued > 1) feed_rate = feed_rate*moves_queued / (BLOCK_BUFFER_SIZE * 0.5);
#endif
/*

2
Marlin/planner.h
View file

@ -66,7 +66,7 @@ void plan_init();
// Add a new linear movement to the buffer. x, y and z is the signed, absolute target position in
// millimaters. Feed rate specifies the speed of the motion.
void plan_buffer_line(const float &x, const float &y, const float &z, const float &e, float feed_rate);
void plan_buffer_line(const float &x, const float &y, const float &z, const float &e, float feed_rate, const uint8_t &extruder);
// Set position. Used for G92 instructions.
void plan_set_position(const float &x, const float &y, const float &z, const float &e);

37
Marlin/stepper.cpp
View file

@ -52,7 +52,7 @@ static long counter_x, // Counter variables for the bresenham line tracer
counter_y,
counter_z,
counter_e;
static unsigned long step_events_completed; // The number of step events executed in the current block
volatile static unsigned long step_events_completed; // The number of step events executed in the current block
#ifdef ADVANCE
static long advance_rate, advance, final_advance = 0;
static short old_advance = 0;
@ -63,6 +63,7 @@ static long acceleration_time, deceleration_time;
//static unsigned long accelerate_until, decelerate_after, acceleration_rate, initial_rate, final_rate, nominal_rate;
static unsigned short acc_step_rate; // needed for deccelaration start point
static char step_loops;
static unsigned short OCR1A_nominal;
volatile long endstops_trigsteps[3]={0,0,0};
volatile long endstops_stepsTotal,endstops_stepsDone;
@ -77,10 +78,6 @@ static bool old_y_max_endstop=false;
static bool old_z_min_endstop=false;
static bool old_z_max_endstop=false;
static bool busy_error=false;
unsigned short OCR1A_error=12345;
unsigned short OCR1A_nominal;
volatile long count_position[NUM_AXIS] = { 0, 0, 0, 0};
volatile char count_direction[NUM_AXIS] = { 1, 1, 1, 1};
@ -164,15 +161,6 @@ asm volatile ( \
#define ENABLE_STEPPER_DRIVER_INTERRUPT() TIMSK1 |= (1<<OCIE1A)
#define DISABLE_STEPPER_DRIVER_INTERRUPT() TIMSK1 &= ~(1<<OCIE1A)
void checkStepperErrors()
{
if(busy_error) {
SERIAL_ERROR_START
SERIAL_ERROR(OCR1A_error);
SERIAL_ERRORLNPGM(" ISR overtaking itself.");
busy_error = false;
}
}
void checkHitEndstops()
{
@ -255,7 +243,7 @@ inline unsigned short calc_timer(unsigned short step_rate) {
timer = (unsigned short)pgm_read_word_near(table_address);
timer -= (((unsigned short)pgm_read_word_near(table_address+2) * (unsigned char)(step_rate & 0x0007))>>3);
}
if(timer < 100) { timer = 100; Serial.print("Steprate to high : "); Serial.println(step_rate); }//(20kHz this should never happen)
if(timer < 100) { timer = 100; MSerial.print("Steprate to high : "); MSerial.println(step_rate); }//(20kHz this should never happen)
return timer;
}
@ -277,17 +265,7 @@ inline void trapezoid_generator_reset() {
// "The Stepper Driver Interrupt" - This timer interrupt is the workhorse.
// It pops blocks from the block_buffer and executes them by pulsing the stepper pins appropriately.
ISR(TIMER1_COMPA_vect)
{
if(busy){
OCR1A_error = OCR1A;
busy_error = true;
OCR1A = 30000;
return;
} // The busy-flag is used to avoid reentering this interrupt
busy = true;
sei(); // Re enable interrupts (normally disabled while inside an interrupt handler)
{
// If there is no current block, attempt to pop one from the buffer
if (current_block == NULL) {
// Anything in the buffer?
@ -304,7 +282,7 @@ ISR(TIMER1_COMPA_vect)
// #endif
}
else {
// DISABLE_STEPPER_DRIVER_INTERRUPT();
OCR1A=2000; // 1kHz.
}
}
@ -404,8 +382,8 @@ ISR(TIMER1_COMPA_vect)
count_direction[E_AXIS]=-1;
}
#endif //!ADVANCE
for(int8_t i=0; i < step_loops; i++) { // Take multiple steps per interrupt (For high speed moves)
MSerial.checkRx();
/*
counter_e += current_block->steps_e;
if (counter_e > 0) {
@ -470,6 +448,7 @@ ISR(TIMER1_COMPA_vect)
unsigned short timer;
unsigned short step_rate;
if (step_events_completed <= current_block->accelerate_until) {
MultiU24X24toH16(acc_step_rate, acceleration_time, current_block->acceleration_rate);
acc_step_rate += current_block->initial_rate;
@ -519,8 +498,6 @@ ISR(TIMER1_COMPA_vect)
plan_discard_current_block();
}
}
cli(); // disable interrupts
busy=false;
}
#ifdef ADVANCE