Geo Electronics "Show2Me"
Show2Me control FW, initial shared version
Dependencies: SDFileSystem_HelloWorld mbed FATFileSystem
Fork of
000_GEO_SHOW2ME_OK_F411RE
by 
Walter Trovo
Revision 2:bbc3e860fa3d, committed 2018-02-13
- Comitter:
- walter76
- Date:
- Tue Feb 13 08:22:23 2018 +0000
- Parent:
- 1:e4d7342be507
- Commit message:
- Preliminary version used to test all HW sections
Changed in this revision
diff -r e4d7342be507 -r bbc3e860fa3d 000_GEO_CONTROL_OK_F411RE.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/000_GEO_CONTROL_OK_F411RE.lib Tue Feb 13 08:22:23 2018 +0000 @@ -0,0 +1,1 @@ +http://developer.mbed.org/users/mbed_official/code/SDFileSystem_HelloWorld/#e4d7342be507
diff -r e4d7342be507 -r bbc3e860fa3d QEI/.hgignore --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/QEI/.hgignore Tue Feb 13 08:22:23 2018 +0000 @@ -0,0 +1,19 @@ +syntax: regexp +\.hgignore$ +\.git$ +\.svn$ +\.orig$ +\.msub$ +\.meta$ +\.ctags +\.uvproj$ +\.uvopt$ +\.project$ +\.cproject$ +\.launch$ +\.project$ +\.cproject$ +\.launch$ +Makefile$ +\.ewp$ +\.eww$ \ No newline at end of file
diff -r e4d7342be507 -r bbc3e860fa3d QEI/QEI.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/QEI/QEI.cpp Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,289 @@
+/**
+ * @author Aaron Berk
+ *
+ * @section LICENSE
+ *
+ * Copyright (c) 2010 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @section DESCRIPTION
+ *
+ * Quadrature Encoder Interface.
+ *
+ * A quadrature encoder consists of two code tracks on a disc which are 90
+ * degrees out of phase. It can be used to determine how far a wheel has
+ * rotated, relative to a known starting position.
+ *
+ * Only one code track changes at a time leading to a more robust system than
+ * a single track, because any jitter around any edge won't cause a state
+ * change as the other track will remain constant.
+ *
+ * Encoders can be a homebrew affair, consisting of infrared emitters/receivers
+ * and paper code tracks consisting of alternating black and white sections;
+ * alternatively, complete disk and PCB emitter/receiver encoder systems can
+ * be bought, but the interface, regardless of implementation is the same.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | ^ | | | | |
+ * ---+ ^ +-----+ +-----+ +-----
+ * ^ ^
+ * ^ +-----+ +-----+ +-----+
+ * Channel B ^ | | | | | |
+ * ------+ +-----+ +-----+ +-----
+ * ^ ^
+ * ^ ^
+ * 90deg
+ *
+ * The interface uses X2 encoding by default which calculates the pulse count
+ * based on reading the current state after each rising and falling edge of
+ * channel A.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | | | | | |
+ * ---+ +-----+ +-----+ +-----
+ * ^ ^ ^ ^ ^
+ * ^ +-----+ ^ +-----+ ^ +-----+
+ * Channel B ^ | ^ | ^ | ^ | ^ | |
+ * ------+ ^ +-----+ ^ +-----+ +--
+ * ^ ^ ^ ^ ^
+ * ^ ^ ^ ^ ^
+ * Pulse count 0 1 2 3 4 5 ...
+ *
+ * This interface can also use X4 encoding which calculates the pulse count
+ * based on reading the current state after each rising and falling edge of
+ * either channel.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | | | | | |
+ * ---+ +-----+ +-----+ +-----
+ * ^ ^ ^ ^ ^
+ * ^ +-----+ ^ +-----+ ^ +-----+
+ * Channel B ^ | ^ | ^ | ^ | ^ | |
+ * ------+ ^ +-----+ ^ +-----+ +--
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * Pulse count 0 1 2 3 4 5 6 7 8 9 ...
+ *
+ * It defaults
+ *
+ * An optional index channel can be used which determines when a full
+ * revolution has occured.
+ *
+ * If a 4 pules per revolution encoder was used, with X4 encoding,
+ * the following would be observed.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | | | | | |
+ * ---+ +-----+ +-----+ +-----
+ * ^ ^ ^ ^ ^
+ * ^ +-----+ ^ +-----+ ^ +-----+
+ * Channel B ^ | ^ | ^ | ^ | ^ | |
+ * ------+ ^ +-----+ ^ +-----+ +--
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * ^ ^ ^ +--+ ^ ^ +--+ ^
+ * ^ ^ ^ | | ^ ^ | | ^
+ * Index ------------+ +--------+ +-----------
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * Pulse count 0 1 2 3 4 5 6 7 8 9 ...
+ * Rev. count 0 1 2
+ *
+ * Rotational position in degrees can be calculated by:
+ *
+ * (pulse count / X * N) * 360
+ *
+ * Where X is the encoding type [e.g. X4 encoding => X=4], and N is the number
+ * of pulses per revolution.
+ *
+ * Linear position can be calculated by:
+ *
+ * (pulse count / X * N) * (1 / PPI)
+ *
+ * Where X is encoding type [e.g. X4 encoding => X=44], N is the number of
+ * pulses per revolution, and PPI is pulses per inch, or the equivalent for
+ * any other unit of displacement. PPI can be calculated by taking the
+ * circumference of the wheel or encoder disk and dividing it by the number
+ * of pulses per revolution.
+ */
+
+/**
+ * Includes
+ */
+#include "QEI.h"
+
+QEI::QEI(PinName channelA,
+ PinName channelB,
+ PinName index,
+ int pulsesPerRev,
+ Encoding encoding) : channelA_(channelA), channelB_(channelB),
+ index_(index) {
+
+ pulses_ = 0;
+ revolutions_ = 0;
+ pulsesPerRev_ = pulsesPerRev;
+ encoding_ = encoding;
+
+ //Workout what the current state is.
+ int chanA = channelA_.read();
+ int chanB = channelB_.read();
+
+ //2-bit state.
+ currState_ = (chanA << 1) | (chanB);
+ prevState_ = currState_;
+
+ //X2 encoding uses interrupts on only channel A.
+ //X4 encoding uses interrupts on channel A,
+ //and on channel B.
+ channelA_.rise(this, &QEI::encode);
+ channelA_.fall(this, &QEI::encode);
+
+ //If we're using X4 encoding, then attach interrupts to channel B too.
+ if (encoding == X4_ENCODING) {
+ channelB_.rise(this, &QEI::encode);
+ channelB_.fall(this, &QEI::encode);
+ }
+ //Index is optional.
+ if (index != NC) {
+ index_.rise(this, &QEI::index);
+ }
+
+}
+
+void QEI::reset(void) {
+
+ pulses_ = 0;
+ revolutions_ = 0;
+
+}
+
+int QEI::getCurrentState(void) {
+
+ return currState_;
+
+}
+
+int QEI::getPulses(void) {
+
+ return pulses_;
+
+}
+
+int QEI::getRevolutions(void) {
+
+ return revolutions_;
+
+}
+
+// +-------------+
+// | X2 Encoding |
+// +-------------+
+//
+// When observing states two patterns will appear:
+//
+// Counter clockwise rotation:
+//
+// 10 -> 01 -> 10 -> 01 -> ...
+//
+// Clockwise rotation:
+//
+// 11 -> 00 -> 11 -> 00 -> ...
+//
+// We consider counter clockwise rotation to be "forward" and
+// counter clockwise to be "backward". Therefore pulse count will increase
+// during counter clockwise rotation and decrease during clockwise rotation.
+//
+// +-------------+
+// | X4 Encoding |
+// +-------------+
+//
+// There are four possible states for a quadrature encoder which correspond to
+// 2-bit gray code.
+//
+// A state change is only valid if of only one bit has changed.
+// A state change is invalid if both bits have changed.
+//
+// Clockwise Rotation ->
+//
+// 00 01 11 10 00
+//
+// <- Counter Clockwise Rotation
+//
+// If we observe any valid state changes going from left to right, we have
+// moved one pulse clockwise [we will consider this "backward" or "negative"].
+//
+// If we observe any valid state changes going from right to left we have
+// moved one pulse counter clockwise [we will consider this "forward" or
+// "positive"].
+//
+// We might enter an invalid state for a number of reasons which are hard to
+// predict - if this is the case, it is generally safe to ignore it, update
+// the state and carry on, with the error correcting itself shortly after.
+void QEI::encode(void) {
+
+ int change = 0;
+ int chanA = channelA_.read();
+ int chanB = channelB_.read();
+
+ //2-bit state.
+ currState_ = (chanA << 1) | (chanB);
+
+ if (encoding_ == X2_ENCODING) {
+
+ //11->00->11->00 is counter clockwise rotation or "forward".
+ if ((prevState_ == 0x3 && currState_ == 0x0) ||
+ (prevState_ == 0x0 && currState_ == 0x3)) {
+
+ pulses_++;
+
+ }
+ //10->01->10->01 is clockwise rotation or "backward".
+ else if ((prevState_ == 0x2 && currState_ == 0x1) ||
+ (prevState_ == 0x1 && currState_ == 0x2)) {
+
+ pulses_--;
+
+ }
+
+ } else if (encoding_ == X4_ENCODING) {
+
+ //Entered a new valid state.
+ if (((currState_ ^ prevState_) != INVALID) && (currState_ != prevState_)) {
+ //2 bit state. Right hand bit of prev XOR left hand bit of current
+ //gives 0 if clockwise rotation and 1 if counter clockwise rotation.
+ change = (prevState_ & PREV_MASK) ^ ((currState_ & CURR_MASK) >> 1);
+
+ if (change == 0) {
+ change = -1;
+ }
+
+ pulses_ -= change;
+ }
+
+ }
+
+ prevState_ = currState_;
+
+}
+
+void QEI::index(void) {
+
+ revolutions_++;
+
+}
diff -r e4d7342be507 -r bbc3e860fa3d QEI/QEI.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/QEI/QEI.h Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,244 @@
+/**
+ * @author Aaron Berk
+ *
+ * @section LICENSE
+ *
+ * Copyright (c) 2010 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+ * THE SOFTWARE.
+ *
+ * @section DESCRIPTION
+ *
+ * Quadrature Encoder Interface.
+ *
+ * A quadrature encoder consists of two code tracks on a disc which are 90
+ * degrees out of phase. It can be used to determine how far a wheel has
+ * rotated, relative to a known starting position.
+ *
+ * Only one code track changes at a time leading to a more robust system than
+ * a single track, because any jitter around any edge won't cause a state
+ * change as the other track will remain constant.
+ *
+ * Encoders can be a homebrew affair, consisting of infrared emitters/receivers
+ * and paper code tracks consisting of alternating black and white sections;
+ * alternatively, complete disk and PCB emitter/receiver encoder systems can
+ * be bought, but the interface, regardless of implementation is the same.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | ^ | | | | |
+ * ---+ ^ +-----+ +-----+ +-----
+ * ^ ^
+ * ^ +-----+ +-----+ +-----+
+ * Channel B ^ | | | | | |
+ * ------+ +-----+ +-----+ +-----
+ * ^ ^
+ * ^ ^
+ * 90deg
+ *
+ * The interface uses X2 encoding by default which calculates the pulse count
+ * based on reading the current state after each rising and falling edge of
+ * channel A.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | | | | | |
+ * ---+ +-----+ +-----+ +-----
+ * ^ ^ ^ ^ ^
+ * ^ +-----+ ^ +-----+ ^ +-----+
+ * Channel B ^ | ^ | ^ | ^ | ^ | |
+ * ------+ ^ +-----+ ^ +-----+ +--
+ * ^ ^ ^ ^ ^
+ * ^ ^ ^ ^ ^
+ * Pulse count 0 1 2 3 4 5 ...
+ *
+ * This interface can also use X4 encoding which calculates the pulse count
+ * based on reading the current state after each rising and falling edge of
+ * either channel.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | | | | | |
+ * ---+ +-----+ +-----+ +-----
+ * ^ ^ ^ ^ ^
+ * ^ +-----+ ^ +-----+ ^ +-----+
+ * Channel B ^ | ^ | ^ | ^ | ^ | |
+ * ------+ ^ +-----+ ^ +-----+ +--
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * Pulse count 0 1 2 3 4 5 6 7 8 9 ...
+ *
+ * It defaults
+ *
+ * An optional index channel can be used which determines when a full
+ * revolution has occured.
+ *
+ * If a 4 pules per revolution encoder was used, with X4 encoding,
+ * the following would be observed.
+ *
+ * +-----+ +-----+ +-----+
+ * Channel A | | | | | |
+ * ---+ +-----+ +-----+ +-----
+ * ^ ^ ^ ^ ^
+ * ^ +-----+ ^ +-----+ ^ +-----+
+ * Channel B ^ | ^ | ^ | ^ | ^ | |
+ * ------+ ^ +-----+ ^ +-----+ +--
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * ^ ^ ^ +--+ ^ ^ +--+ ^
+ * ^ ^ ^ | | ^ ^ | | ^
+ * Index ------------+ +--------+ +-----------
+ * ^ ^ ^ ^ ^ ^ ^ ^ ^ ^
+ * Pulse count 0 1 2 3 4 5 6 7 8 9 ...
+ * Rev. count 0 1 2
+ *
+ * Rotational position in degrees can be calculated by:
+ *
+ * (pulse count / X * N) * 360
+ *
+ * Where X is the encoding type [e.g. X4 encoding => X=4], and N is the number
+ * of pulses per revolution.
+ *
+ * Linear position can be calculated by:
+ *
+ * (pulse count / X * N) * (1 / PPI)
+ *
+ * Where X is encoding type [e.g. X4 encoding => X=44], N is the number of
+ * pulses per revolution, and PPI is pulses per inch, or the equivalent for
+ * any other unit of displacement. PPI can be calculated by taking the
+ * circumference of the wheel or encoder disk and dividing it by the number
+ * of pulses per revolution.
+ */
+
+#ifndef QEI_H
+#define QEI_H
+
+/**
+ * Includes
+ */
+#include "mbed.h"
+
+/**
+ * Defines
+ */
+#define PREV_MASK 0x1 //Mask for the previous state in determining direction
+//of rotation.
+#define CURR_MASK 0x2 //Mask for the current state in determining direction
+//of rotation.
+#define INVALID 0x3 //XORing two states where both bits have changed.
+
+/**
+ * Quadrature Encoder Interface.
+ */
+class QEI {
+
+public:
+
+ typedef enum Encoding {
+
+ X2_ENCODING,
+ X4_ENCODING
+
+ } Encoding;
+
+ /**
+ * Constructor.
+ *
+ * Reads the current values on channel A and channel B to determine the
+ * initial state.
+ *
+ * Attaches the encode function to the rise/fall interrupt edges of
+ * channels A and B to perform X4 encoding.
+ *
+ * Attaches the index function to the rise interrupt edge of channel index
+ * (if it is used) to count revolutions.
+ *
+ * @param channelA mbed pin for channel A input.
+ * @param channelB mbed pin for channel B input.
+ * @param index mbed pin for optional index channel input,
+ * (pass NC if not needed).
+ * @param pulsesPerRev Number of pulses in one revolution.
+ * @param encoding The encoding to use. Uses X2 encoding by default. X2
+ * encoding uses interrupts on the rising and falling edges
+ * of only channel A where as X4 uses them on both
+ * channels.
+ */
+ QEI(PinName channelA, PinName channelB, PinName index, int pulsesPerRev, Encoding encoding = X2_ENCODING);
+
+ /**
+ * Reset the encoder.
+ *
+ * Sets the pulses and revolutions count to zero.
+ */
+ void reset(void);
+
+ /**
+ * Read the state of the encoder.
+ *
+ * @return The current state of the encoder as a 2-bit number, where:
+ * bit 1 = The reading from channel B
+ * bit 2 = The reading from channel A
+ */
+ int getCurrentState(void);
+
+ /**
+ * Read the number of pulses recorded by the encoder.
+ *
+ * @return Number of pulses which have occured.
+ */
+ int getPulses(void);
+
+ /**
+ * Read the number of revolutions recorded by the encoder on the index channel.
+ *
+ * @return Number of revolutions which have occured on the index channel.
+ */
+ int getRevolutions(void);
+
+private:
+
+ /**
+ * Update the pulse count.
+ *
+ * Called on every rising/falling edge of channels A/B.
+ *
+ * Reads the state of the channels and determines whether a pulse forward
+ * or backward has occured, updating the count appropriately.
+ */
+ void encode(void);
+
+ /**
+ * Called on every rising edge of channel index to update revolution
+ * count by one.
+ */
+ void index(void);
+
+ Encoding encoding_;
+
+ InterruptIn channelA_;
+ InterruptIn channelB_;
+ InterruptIn index_;
+
+ int pulsesPerRev_;
+ int prevState_;
+ int currState_;
+
+ volatile int pulses_;
+ volatile int revolutions_;
+
+};
+
+#endif /* QEI_H */
diff -r e4d7342be507 -r bbc3e860fa3d SDFileSystem.lib --- a/SDFileSystem.lib Tue May 16 05:18:55 2017 +0000 +++ /dev/null Thu Jan 01 00:00:00 1970 +0000 @@ -1,1 +0,0 @@ -http://mbed.org/users/mbed_official/code/SDFileSystem/#8db0d3b02cec
diff -r e4d7342be507 -r bbc3e860fa3d SDFileSystem/FATFileSystem.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/SDFileSystem/FATFileSystem.lib Tue Feb 13 08:22:23 2018 +0000 @@ -0,0 +1,1 @@ +https://developer.mbed.org/teams/mbed-official/code/FATFileSystem/#e2ab678eb692
diff -r e4d7342be507 -r bbc3e860fa3d SDFileSystem/SDFileSystem.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SDFileSystem/SDFileSystem.cpp Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,498 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+/* Introduction
+ * ------------
+ * SD and MMC cards support a number of interfaces, but common to them all
+ * is one based on SPI. This is the one I'm implmenting because it means
+ * it is much more portable even though not so performant, and we already
+ * have the mbed SPI Interface!
+ *
+ * The main reference I'm using is Chapter 7, "SPI Mode" of:
+ * http://www.sdcard.org/developers/tech/sdcard/pls/Simplified_Physical_Layer_Spec.pdf
+ *
+ * SPI Startup
+ * -----------
+ * The SD card powers up in SD mode. The SPI interface mode is selected by
+ * asserting CS low and sending the reset command (CMD0). The card will
+ * respond with a (R1) response.
+ *
+ * CMD8 is optionally sent to determine the voltage range supported, and
+ * indirectly determine whether it is a version 1.x SD/non-SD card or
+ * version 2.x. I'll just ignore this for now.
+ *
+ * ACMD41 is repeatedly issued to initialise the card, until "in idle"
+ * (bit 0) of the R1 response goes to '0', indicating it is initialised.
+ *
+ * You should also indicate whether the host supports High Capicity cards,
+ * and check whether the card is high capacity - i'll also ignore this
+ *
+ * SPI Protocol
+ * ------------
+ * The SD SPI protocol is based on transactions made up of 8-bit words, with
+ * the host starting every bus transaction by asserting the CS signal low. The
+ * card always responds to commands, data blocks and errors.
+ *
+ * The protocol supports a CRC, but by default it is off (except for the
+ * first reset CMD0, where the CRC can just be pre-calculated, and CMD8)
+ * I'll leave the CRC off I think!
+ *
+ * Standard capacity cards have variable data block sizes, whereas High
+ * Capacity cards fix the size of data block to 512 bytes. I'll therefore
+ * just always use the Standard Capacity cards with a block size of 512 bytes.
+ * This is set with CMD16.
+ *
+ * You can read and write single blocks (CMD17, CMD25) or multiple blocks
+ * (CMD18, CMD25). For simplicity, I'll just use single block accesses. When
+ * the card gets a read command, it responds with a response token, and then
+ * a data token or an error.
+ *
+ * SPI Command Format
+ * ------------------
+ * Commands are 6-bytes long, containing the command, 32-bit argument, and CRC.
+ *
+ * +---------------+------------+------------+-----------+----------+--------------+
+ * | 01 | cmd[5:0] | arg[31:24] | arg[23:16] | arg[15:8] | arg[7:0] | crc[6:0] | 1 |
+ * +---------------+------------+------------+-----------+----------+--------------+
+ *
+ * As I'm not using CRC, I can fix that byte to what is needed for CMD0 (0x95)
+ *
+ * All Application Specific commands shall be preceded with APP_CMD (CMD55).
+ *
+ * SPI Response Format
+ * -------------------
+ * The main response format (R1) is a status byte (normally zero). Key flags:
+ * idle - 1 if the card is in an idle state/initialising
+ * cmd - 1 if an illegal command code was detected
+ *
+ * +-------------------------------------------------+
+ * R1 | 0 | arg | addr | seq | crc | cmd | erase | idle |
+ * +-------------------------------------------------+
+ *
+ * R1b is the same, except it is followed by a busy signal (zeros) until
+ * the first non-zero byte when it is ready again.
+ *
+ * Data Response Token
+ * -------------------
+ * Every data block written to the card is acknowledged by a byte
+ * response token
+ *
+ * +----------------------+
+ * | xxx | 0 | status | 1 |
+ * +----------------------+
+ * 010 - OK!
+ * 101 - CRC Error
+ * 110 - Write Error
+ *
+ * Single Block Read and Write
+ * ---------------------------
+ *
+ * Block transfers have a byte header, followed by the data, followed
+ * by a 16-bit CRC. In our case, the data will always be 512 bytes.
+ *
+ * +------+---------+---------+- - - -+---------+-----------+----------+
+ * | 0xFE | data[0] | data[1] | | data[n] | crc[15:8] | crc[7:0] |
+ * +------+---------+---------+- - - -+---------+-----------+----------+
+ */
+#include "SDFileSystem.h"
+#include "mbed_debug.h"
+
+#define SD_COMMAND_TIMEOUT 5000
+
+#define SD_DBG 0
+
+SDFileSystem::SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name) :
+ FATFileSystem(name), _spi(mosi, miso, sclk), _cs(cs), _is_initialized(0) {
+ _cs = 1;
+
+ // Set default to 100kHz for initialisation and 1MHz for data transfer
+ _init_sck = 100000;
+ _transfer_sck = 1000000;
+}
+
+#define R1_IDLE_STATE (1 << 0)
+#define R1_ERASE_RESET (1 << 1)
+#define R1_ILLEGAL_COMMAND (1 << 2)
+#define R1_COM_CRC_ERROR (1 << 3)
+#define R1_ERASE_SEQUENCE_ERROR (1 << 4)
+#define R1_ADDRESS_ERROR (1 << 5)
+#define R1_PARAMETER_ERROR (1 << 6)
+
+// Types
+// - v1.x Standard Capacity
+// - v2.x Standard Capacity
+// - v2.x High Capacity
+// - Not recognised as an SD Card
+#define SDCARD_FAIL 0
+#define SDCARD_V1 1
+#define SDCARD_V2 2
+#define SDCARD_V2HC 3
+
+int SDFileSystem::initialise_card() {
+ // Set to SCK for initialisation, and clock card with cs = 1
+ _spi.frequency(_init_sck);
+ _cs = 1;
+ for (int i = 0; i < 16; i++) {
+ _spi.write(0xFF);
+ }
+
+ // send CMD0, should return with all zeros except IDLE STATE set (bit 0)
+ if (_cmd(0, 0) != R1_IDLE_STATE) {
+ debug("No disk, or could not put SD card in to SPI idle state\n");
+ return SDCARD_FAIL;
+ }
+
+ // send CMD8 to determine whther it is ver 2.x
+ int r = _cmd8();
+ if (r == R1_IDLE_STATE) {
+ return initialise_card_v2();
+ } else if (r == (R1_IDLE_STATE | R1_ILLEGAL_COMMAND)) {
+ return initialise_card_v1();
+ } else {
+ debug("Not in idle state after sending CMD8 (not an SD card?)\n");
+ return SDCARD_FAIL;
+ }
+}
+
+int SDFileSystem::initialise_card_v1() {
+ for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
+ _cmd(55, 0);
+ if (_cmd(41, 0) == 0) {
+ cdv = 512;
+ debug_if(SD_DBG, "\n\rInit: SEDCARD_V1\n\r");
+ return SDCARD_V1;
+ }
+ }
+
+ debug("Timeout waiting for v1.x card\n");
+ return SDCARD_FAIL;
+}
+
+int SDFileSystem::initialise_card_v2() {
+ for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
+ wait_ms(50);
+ _cmd58();
+ _cmd(55, 0);
+ if (_cmd(41, 0x40000000) == 0) {
+ _cmd58();
+ debug_if(SD_DBG, "\n\rInit: SDCARD_V2\n\r");
+ cdv = 1;
+ return SDCARD_V2;
+ }
+ }
+
+ debug("Timeout waiting for v2.x card\n");
+ return SDCARD_FAIL;
+}
+
+int SDFileSystem::disk_initialize() {
+ _is_initialized = initialise_card();
+ if (_is_initialized == 0) {
+ debug("Fail to initialize card\n");
+ return 1;
+ }
+ debug_if(SD_DBG, "init card = %d\n", _is_initialized);
+ _sectors = _sd_sectors();
+
+ // Set block length to 512 (CMD16)
+ if (_cmd(16, 512) != 0) {
+ debug("Set 512-byte block timed out\n");
+ return 1;
+ }
+
+ // Set SCK for data transfer
+ _spi.frequency(_transfer_sck);
+ return 0;
+}
+
+int SDFileSystem::disk_write(const uint8_t* buffer, uint32_t block_number, uint32_t count) {
+ if (!_is_initialized) {
+ return -1;
+ }
+
+ for (uint32_t b = block_number; b < block_number + count; b++) {
+ // set write address for single block (CMD24)
+ if (_cmd(24, b * cdv) != 0) {
+ return 1;
+ }
+
+ // send the data block
+ _write(buffer, 512);
+ buffer += 512;
+ }
+
+ return 0;
+}
+
+int SDFileSystem::disk_read(uint8_t* buffer, uint32_t block_number, uint32_t count) {
+ if (!_is_initialized) {
+ return -1;
+ }
+
+ for (uint32_t b = block_number; b < block_number + count; b++) {
+ // set read address for single block (CMD17)
+ if (_cmd(17, b * cdv) != 0) {
+ return 1;
+ }
+
+ // receive the data
+ _read(buffer, 512);
+ buffer += 512;
+ }
+
+ return 0;
+}
+
+int SDFileSystem::disk_status() {
+ // FATFileSystem::disk_status() returns 0 when initialized
+ if (_is_initialized) {
+ return 0;
+ } else {
+ return 1;
+ }
+}
+
+int SDFileSystem::disk_sync() { return 0; }
+uint32_t SDFileSystem::disk_sectors() { return _sectors; }
+
+
+// PRIVATE FUNCTIONS
+int SDFileSystem::_cmd(int cmd, int arg) {
+ _cs = 0;
+
+ // send a command
+ _spi.write(0x40 | cmd);
+ _spi.write(arg >> 24);
+ _spi.write(arg >> 16);
+ _spi.write(arg >> 8);
+ _spi.write(arg >> 0);
+ _spi.write(0x95);
+
+ // wait for the repsonse (response[7] == 0)
+ for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
+ int response = _spi.write(0xFF);
+ if (!(response & 0x80)) {
+ _cs = 1;
+ _spi.write(0xFF);
+ return response;
+ }
+ }
+ _cs = 1;
+ _spi.write(0xFF);
+ return -1; // timeout
+}
+int SDFileSystem::_cmdx(int cmd, int arg) {
+ _cs = 0;
+
+ // send a command
+ _spi.write(0x40 | cmd);
+ _spi.write(arg >> 24);
+ _spi.write(arg >> 16);
+ _spi.write(arg >> 8);
+ _spi.write(arg >> 0);
+ _spi.write(0x95);
+
+ // wait for the repsonse (response[7] == 0)
+ for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
+ int response = _spi.write(0xFF);
+ if (!(response & 0x80)) {
+ return response;
+ }
+ }
+ _cs = 1;
+ _spi.write(0xFF);
+ return -1; // timeout
+}
+
+
+int SDFileSystem::_cmd58() {
+ _cs = 0;
+ int arg = 0;
+
+ // send a command
+ _spi.write(0x40 | 58);
+ _spi.write(arg >> 24);
+ _spi.write(arg >> 16);
+ _spi.write(arg >> 8);
+ _spi.write(arg >> 0);
+ _spi.write(0x95);
+
+ // wait for the repsonse (response[7] == 0)
+ for (int i = 0; i < SD_COMMAND_TIMEOUT; i++) {
+ int response = _spi.write(0xFF);
+ if (!(response & 0x80)) {
+ int ocr = _spi.write(0xFF) << 24;
+ ocr |= _spi.write(0xFF) << 16;
+ ocr |= _spi.write(0xFF) << 8;
+ ocr |= _spi.write(0xFF) << 0;
+ _cs = 1;
+ _spi.write(0xFF);
+ return response;
+ }
+ }
+ _cs = 1;
+ _spi.write(0xFF);
+ return -1; // timeout
+}
+
+int SDFileSystem::_cmd8() {
+ _cs = 0;
+
+ // send a command
+ _spi.write(0x40 | 8); // CMD8
+ _spi.write(0x00); // reserved
+ _spi.write(0x00); // reserved
+ _spi.write(0x01); // 3.3v
+ _spi.write(0xAA); // check pattern
+ _spi.write(0x87); // crc
+
+ // wait for the repsonse (response[7] == 0)
+ for (int i = 0; i < SD_COMMAND_TIMEOUT * 1000; i++) {
+ char response[5];
+ response[0] = _spi.write(0xFF);
+ if (!(response[0] & 0x80)) {
+ for (int j = 1; j < 5; j++) {
+ response[i] = _spi.write(0xFF);
+ }
+ _cs = 1;
+ _spi.write(0xFF);
+ return response[0];
+ }
+ }
+ _cs = 1;
+ _spi.write(0xFF);
+ return -1; // timeout
+}
+
+int SDFileSystem::_read(uint8_t *buffer, uint32_t length) {
+ _cs = 0;
+
+ // read until start byte (0xFF)
+ while (_spi.write(0xFF) != 0xFE);
+
+ // read data
+ for (uint32_t i = 0; i < length; i++) {
+ buffer[i] = _spi.write(0xFF);
+ }
+ _spi.write(0xFF); // checksum
+ _spi.write(0xFF);
+
+ _cs = 1;
+ _spi.write(0xFF);
+ return 0;
+}
+
+int SDFileSystem::_write(const uint8_t*buffer, uint32_t length) {
+ _cs = 0;
+
+ // indicate start of block
+ _spi.write(0xFE);
+
+ // write the data
+ for (uint32_t i = 0; i < length; i++) {
+ _spi.write(buffer[i]);
+ }
+
+ // write the checksum
+ _spi.write(0xFF);
+ _spi.write(0xFF);
+
+ // check the response token
+ if ((_spi.write(0xFF) & 0x1F) != 0x05) {
+ _cs = 1;
+ _spi.write(0xFF);
+ return 1;
+ }
+
+ // wait for write to finish
+ while (_spi.write(0xFF) == 0);
+
+ _cs = 1;
+ _spi.write(0xFF);
+ return 0;
+}
+
+static uint32_t ext_bits(unsigned char *data, int msb, int lsb) {
+ uint32_t bits = 0;
+ uint32_t size = 1 + msb - lsb;
+ for (uint32_t i = 0; i < size; i++) {
+ uint32_t position = lsb + i;
+ uint32_t byte = 15 - (position >> 3);
+ uint32_t bit = position & 0x7;
+ uint32_t value = (data[byte] >> bit) & 1;
+ bits |= value << i;
+ }
+ return bits;
+}
+
+uint32_t SDFileSystem::_sd_sectors() {
+ uint32_t c_size, c_size_mult, read_bl_len;
+ uint32_t block_len, mult, blocknr, capacity;
+ uint32_t hc_c_size;
+ uint32_t blocks;
+
+ // CMD9, Response R2 (R1 byte + 16-byte block read)
+ if (_cmdx(9, 0) != 0) {
+ debug("Didn't get a response from the disk\n");
+ return 0;
+ }
+
+ uint8_t csd[16];
+ if (_read(csd, 16) != 0) {
+ debug("Couldn't read csd response from disk\n");
+ return 0;
+ }
+
+ // csd_structure : csd[127:126]
+ // c_size : csd[73:62]
+ // c_size_mult : csd[49:47]
+ // read_bl_len : csd[83:80] - the *maximum* read block length
+
+ int csd_structure = ext_bits(csd, 127, 126);
+
+ switch (csd_structure) {
+ case 0:
+ cdv = 512;
+ c_size = ext_bits(csd, 73, 62);
+ c_size_mult = ext_bits(csd, 49, 47);
+ read_bl_len = ext_bits(csd, 83, 80);
+
+ block_len = 1 << read_bl_len;
+ mult = 1 << (c_size_mult + 2);
+ blocknr = (c_size + 1) * mult;
+ capacity = blocknr * block_len;
+ blocks = capacity / 512;
+ debug_if(SD_DBG, "\n\rSDCard\n\rc_size: %d \n\rcapacity: %ld \n\rsectors: %lld\n\r", c_size, capacity, blocks);
+ break;
+
+ case 1:
+ cdv = 1;
+ hc_c_size = ext_bits(csd, 63, 48);
+ blocks = (hc_c_size+1)*1024;
+ debug_if(SD_DBG, "\n\rSDHC Card \n\rhc_c_size: %d\n\rcapacity: %lld \n\rsectors: %lld\n\r", hc_c_size, blocks*512, blocks);
+ break;
+
+ default:
+ debug("CSD struct unsupported\r\n");
+ return 0;
+ };
+ return blocks;
+}
\ No newline at end of file
diff -r e4d7342be507 -r bbc3e860fa3d SDFileSystem/SDFileSystem.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/SDFileSystem/SDFileSystem.h Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,89 @@
+/* mbed Microcontroller Library
+ * Copyright (c) 2006-2012 ARM Limited
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a copy
+ * of this software and associated documentation files (the "Software"), to deal
+ * in the Software without restriction, including without limitation the rights
+ * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+ * copies of the Software, and to permit persons to whom the Software is
+ * furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+ * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+ * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+#ifndef MBED_SDFILESYSTEM_H
+#define MBED_SDFILESYSTEM_H
+
+#include "mbed.h"
+#include "FATFileSystem.h"
+#include <stdint.h>
+
+/** Access the filesystem on an SD Card using SPI
+ *
+ * @code
+ * #include "mbed.h"
+ * #include "SDFileSystem.h"
+ *
+ * SDFileSystem sd(p5, p6, p7, p12, "sd"); // mosi, miso, sclk, cs
+ *
+ * int main() {
+ * FILE *fp = fopen("/sd/myfile.txt", "w");
+ * fprintf(fp, "Hello World!\n");
+ * fclose(fp);
+ * }
+ */
+class SDFileSystem : public FATFileSystem {
+public:
+
+ /** Create the File System for accessing an SD Card using SPI
+ *
+ * @param mosi SPI mosi pin connected to SD Card
+ * @param miso SPI miso pin conencted to SD Card
+ * @param sclk SPI sclk pin connected to SD Card
+ * @param cs DigitalOut pin used as SD Card chip select
+ * @param name The name used to access the virtual filesystem
+ */
+ SDFileSystem(PinName mosi, PinName miso, PinName sclk, PinName cs, const char* name);
+ virtual int disk_initialize();
+ virtual int disk_status();
+ virtual int disk_read(uint8_t* buffer, uint32_t block_number, uint32_t count);
+ virtual int disk_write(const uint8_t* buffer, uint32_t block_number, uint32_t count);
+ virtual int disk_sync();
+ virtual uint32_t disk_sectors();
+
+protected:
+
+ int _cmd(int cmd, int arg);
+ int _cmdx(int cmd, int arg);
+ int _cmd8();
+ int _cmd58();
+ int initialise_card();
+ int initialise_card_v1();
+ int initialise_card_v2();
+
+ int _read(uint8_t * buffer, uint32_t length);
+ int _write(const uint8_t *buffer, uint32_t length);
+ uint32_t _sd_sectors();
+ uint32_t _sectors;
+
+ void set_init_sck(uint32_t sck) { _init_sck = sck; }
+ // Note: The highest SPI clock rate is 20 MHz for MMC and 25 MHz for SD
+ void set_transfer_sck(uint32_t sck) { _transfer_sck = sck; }
+ uint32_t _init_sck;
+ uint32_t _transfer_sck;
+
+ SPI _spi;
+ DigitalOut _cs;
+ int cdv;
+ int _is_initialized;
+};
+
+#endif
\ No newline at end of file
diff -r e4d7342be507 -r bbc3e860fa3d ST7565_LCD/ST7565_LCD.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ST7565_LCD/ST7565_LCD.cpp Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,445 @@
+
+
+#include "mbed.h"
+#include "ST7565_LCD.h"
+#include "font_5x7.h"
+
+unsigned int lcd_orientation, lcd_width, lcd_height;
+unsigned int p_size, p_x, p_y, p_bg, p_fg;
+
+//extern const unsigned short font_PGM[];
+
+int pagemap[] = { 0, 1, 2, 3, 4, 5, 6, 7 };
+/*
+// CAUTION HIGH VOLTAGE
+unsigned int buffer[128*64/8] = {
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x80, 0xE0, 0xF8, 0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0xF8, 0xE0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xF0,
+0xF8, 0x0C, 0x04, 0x04, 0x04, 0x0C, 0x08, 0x00, 0x80, 0xF0, 0x7C, 0x0C, 0x7C, 0xF0, 0x80, 0x00,
+0x00, 0xFC, 0xFC, 0x00, 0x00, 0x00, 0xFC, 0xFC, 0x00, 0x04, 0x04, 0x04, 0xFC, 0xFC, 0x04, 0x04,
+0x04, 0x00, 0xFC, 0xFC, 0x00, 0x00, 0xF0, 0xF8, 0x0C, 0x04, 0x04, 0x0C, 0xF8, 0xF0, 0x00, 0x00,
+0xFC, 0xFC, 0x38, 0xE0, 0x80, 0xFC, 0xFC, 0x00, 0x00, 0xFC, 0xFC, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xE0, 0xF0, 0xFC, 0xFF,
+0xFF, 0x3F, 0x0F, 0x07, 0x01, 0x00, 0x01, 0x07, 0x0F, 0x3F, 0xFF, 0xFE, 0xFC, 0xF0, 0xC0, 0x80,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x03,
+0x07, 0x0C, 0x08, 0x08, 0x08, 0x0C, 0x04, 0x0C, 0x0F, 0x03, 0x02, 0x02, 0x02, 0x03, 0x0F, 0x0C,
+0x00, 0x07, 0x0F, 0x08, 0x08, 0x08, 0x0F, 0x07, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00,
+0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x07, 0x0C, 0x08, 0x08, 0x0C, 0x07, 0x03, 0x00, 0x00,
+0x0F, 0x0F, 0x00, 0x00, 0x03, 0x0F, 0x0F, 0x00, 0x00, 0x0D, 0x0D, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xF0, 0xF8, 0xFE, 0xFF, 0x7F, 0x1F, 0x07, 0x01,
+0x00, 0x80, 0xF8, 0xFC, 0xFC, 0xFC, 0xFC, 0xFC, 0x3C, 0x00, 0x00, 0x01, 0x07, 0x1F, 0x3F, 0xFF,
+0xFE, 0xF8, 0xF0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0xFF, 0xFF, 0x10, 0x10, 0x10, 0xFF, 0xFF, 0x00, 0x00, 0xFF, 0xFF, 0x00, 0x00, 0xFC, 0xFE, 0x03,
+0x01, 0x21, 0x21, 0xE3, 0xE2, 0x00, 0x00, 0xFF, 0xFF, 0x10, 0x10, 0x10, 0xFF, 0xFF, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0xC0, 0xE0, 0xF8, 0xFE, 0xFF, 0x7F, 0x1F, 0x0F, 0x03, 0x00, 0x00, 0x00, 0x00, 0xC0,
+0xFC, 0xFF, 0xFF, 0xFF, 0x7F, 0x1F, 0x07, 0x00, 0x80, 0x80, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00,
+0x03, 0x07, 0x1F, 0x7F, 0xFF, 0xFE, 0xF8, 0xE0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xC0, 0x00, 0x00, 0x80, 0xC0, 0x40, 0x40,
+0xC3, 0x83, 0x00, 0x00, 0x00, 0xC3, 0xC3, 0x00, 0x00, 0x03, 0x03, 0x00, 0x40, 0x40, 0x41, 0xC3,
+0xC2, 0x42, 0x42, 0x43, 0x01, 0x00, 0x00, 0xC3, 0xC3, 0xC0, 0x00, 0x00, 0x03, 0x03, 0x00, 0x80,
+0xC0, 0x40, 0x40, 0x40, 0xC0, 0x80, 0x00, 0x00, 0xC0, 0xC0, 0x40, 0x40, 0x40, 0x40, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xE0, 0xF8,
+0xFC, 0xFF, 0x7F, 0x3F, 0x0F, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xE0, 0xFC, 0x7F,
+0x7F, 0x3F, 0x3F, 0x1F, 0x1C, 0x0E, 0xFF, 0xFF, 0xFF, 0xFF, 0x3F, 0x07, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x03, 0x0F, 0x1F, 0x7F, 0xFF, 0xFC, 0xF8, 0xE0, 0x80, 0x00, 0x00,
+0x00, 0x00, 0x07, 0x3F, 0xF8, 0xC0, 0xF8, 0x3F, 0x07, 0x00, 0x00, 0x3F, 0x7F, 0xC0, 0x80, 0x80,
+0xC0, 0x7F, 0x3F, 0x00, 0x00, 0xFF, 0xFF, 0x80, 0x80, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0xFF,
+0xFF, 0x00, 0x00, 0x00, 0xC0, 0xF8, 0x3F, 0x27, 0x20, 0x27, 0x3F, 0xF8, 0xC0, 0x00, 0x3F, 0x7F,
+0xC0, 0x80, 0x88, 0x88, 0xF8, 0x78, 0x00, 0x00, 0xFF, 0xFF, 0x84, 0x84, 0x84, 0x84, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xF0, 0xFC, 0xFE, 0xFF, 0x3F, 0x1F,
+0x07, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x80, 0x80, 0x00, 0xFC, 0xFF, 0xFF, 0x3F, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x0F, 0x3F, 0x7F, 0xFF, 0xFC,
+0xF0, 0xE0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0xC0, 0xF0, 0xF8, 0xFE, 0xFF, 0x7F, 0x1F, 0x07, 0x03, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x01, 0x0F, 0xFF, 0xFF, 0x3F, 0x0F, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x07,
+0x0F, 0x3F, 0xFF, 0xFF, 0xFC, 0xF0, 0xE0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x1E, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C,
+0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C,
+0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C,
+0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C, 0x3C,
+0x3C, 0x3C, 0x3C, 0x3F, 0x3F, 0x3F, 0x3F, 0x3F, 0x1E, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+*/
+
+// GEO ELECTRONICS 2017
+unsigned int buffer[128*64/8] = {
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xC0, 0xE0, 0xE0, 0xC0,
+0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xE0, 0x30, 0x10, 0x08, 0x08, 0x58, 0x78,
+0x30, 0x00, 0x00, 0xC8, 0xF8, 0xB8, 0xC8, 0xC8, 0x08, 0x18, 0x18, 0x08, 0xC0, 0xE0, 0x30, 0x10,
+0x08, 0x08, 0xF8, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80,
+0x80, 0xC0, 0xC0, 0xE0, 0xE0, 0xF0, 0xF8, 0x78, 0x3C, 0x1E, 0x1F, 0x0F, 0x0F, 0x0F, 0x0F, 0x1F,
+0x9F, 0xDF, 0xFE, 0xFC, 0xF8, 0xF0, 0xE0, 0xE0, 0xC0, 0xC0, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0F, 0x1F, 0x10, 0x10, 0x19, 0x0D, 0x0F, 0x03, 0x11,
+0x10, 0x9C, 0x9F, 0x93, 0x90, 0x11, 0x19, 0x08, 0x00, 0x00, 0x00, 0x0F, 0x1B, 0x10, 0x10, 0x08,
+0x0C, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE, 0xFF, 0xFF,
+0xFF, 0xFF, 0xFF, 0x7F, 0x0F, 0x07, 0x03, 0x00, 0x00, 0xE0, 0xE0, 0xF8, 0xFC, 0x7E, 0xDE, 0xE0,
+0xF7, 0xFF, 0xFF, 0xFF, 0xFD, 0xFB, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFE, 0xFC, 0xF8,
+0xE0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC0, 0xF0, 0xB8, 0x2C, 0x2C, 0xAC, 0x38, 0x00, 0xC0,
+0xF0, 0x3C, 0x0F, 0xC3, 0xF0, 0xB8, 0x2C, 0x2C, 0xAC, 0x38, 0x00, 0xC0, 0xF0, 0xB8, 0x0C, 0x0C,
+0x84, 0x0C, 0xC0, 0xF4, 0x3C, 0x0F, 0x84, 0x04, 0x00, 0xC4, 0xFC, 0x38, 0x0C, 0x04, 0xEC, 0xF0,
+0x98, 0x0C, 0x84, 0xCC, 0x78, 0x00, 0x80, 0xF4, 0x3C, 0x0C, 0xC4, 0x3C, 0x1C, 0x00, 0xC0, 0xF4,
+0x3C, 0x0C, 0xC0, 0xF0, 0xB8, 0x08, 0x0C, 0x84, 0x0C, 0x80, 0xB8, 0x3C, 0xE4, 0xCC, 0x08, 0x00,
+0x00, 0x00, 0x80, 0xC0, 0xE0, 0xF0, 0xF8, 0x7E, 0xFF, 0xFF, 0xFF, 0xFF, 0xF7, 0xE3, 0x47, 0x1F,
+0x0F, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x81, 0xC6, 0xEF, 0xF7,
+0xF3, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x7F,
+0x3F, 0x1F, 0x1F, 0xFC, 0xF0, 0xE0, 0xC0, 0x80, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x01, 0x01,
+0x01, 0x01, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01,
+0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01,
+0x01, 0x01, 0x01, 0x00, 0x00, 0x00, 0x01, 0x01, 0x01, 0x00, 0x01, 0x01, 0x00, 0x00, 0x01, 0x01,
+0x01, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x01, 0x01, 0x01, 0x01, 0x00, 0x00, 0x00,
+0x06, 0x0F, 0x1F, 0x3F, 0x7F, 0xFF, 0xFF, 0x80, 0x00, 0x41, 0xE1, 0xF3, 0xFF, 0xFF, 0xFF, 0xFE,
+0xFE, 0xFE, 0xFE, 0xFC, 0xF8, 0xF0, 0xE0, 0xC0, 0x80, 0x00, 0x06, 0x1F, 0x3F, 0x7F, 0x7F, 0xFF,
+0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFD, 0xFD, 0x0D, 0x04, 0x00,
+0x00, 0x00, 0x00, 0xE0, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x1E, 0x0C, 0x00, 0x00, 0x00, 0x04, 0x04,
+0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04, 0x04,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x07, 0x1F, 0x7C, 0xE0, 0x80, 0x01, 0x03, 0xFF, 0xFF, 0xFF,
+0xFF, 0xFF, 0xFF, 0xFF, 0x7F, 0x3F, 0x1F, 0x0F, 0x07, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x01, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x07, 0x77, 0x7B, 0x7D, 0x3E, 0x00, 0x80,
+0xE0, 0x78, 0x3F, 0x0F, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0xC7, 0xEE, 0xFF, 0xFF, 0xFF,
+0xFF, 0xE3, 0xC1, 0xC0, 0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x01, 0x03, 0x83, 0x83, 0xC3, 0xC3, 0xE1, 0xE0, 0xF0, 0xF8, 0xFC, 0xFE, 0xF7, 0xF3,
+0xF1, 0xF0, 0xF0, 0xF0, 0xF0, 0xE0, 0xE0, 0xE0, 0xC0, 0xC0, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01, 0x03, 0x03, 0x03,
+0x03, 0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x0F, 0x1F, 0x3F, 0x7E, 0xFE, 0xFE, 0x7E, 0x3E, 0x1E,
+0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x07,
+0x07, 0x07, 0x07, 0x07, 0x07, 0x07, 0x03, 0x03, 0x03, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+
+extern const unsigned short font_PGM[];
+
+
+DigitalOut LCD_RST (D9); // D7=PA8--> LCD Reset
+DigitalOut LCD_CS (D10); // D10=PB6--> LCD Chip-Select
+DigitalOut LCD_SDI (D11); // D11=PA7--> LCD Serial Data In
+DigitalOut LCD_A0 (D12); // D12=PA6--> LCD A0
+DigitalOut LCD_CLK (D13); // D13=PA5--> LCD Serial Clock
+
+
+//==============================================================================
+
+void Delay_us(int howmany)
+{
+ int n;
+ Timer t;
+ t.start();
+ do
+ {
+ n=t.read_us();
+ }
+ while (n<= howmany);
+}
+
+
+//==============================================================================
+
+
+void SPI_Write(uint8_t data)
+{
+
+ uint8_t mask;
+
+ for(mask=0x80; mask!=0; mask>>=1)
+ {
+ LCD_CLK=0;
+ if(mask & data)
+ LCD_SDI=1;
+
+ else
+ LCD_SDI=0;
+
+ LCD_CLK=1;
+
+ }
+ LCD_CLK=0;
+
+ return;
+}
+
+
+//==============================================================================
+
+void LCD_cmd(uint8_t command)
+{
+
+ LCD_A0=0;
+
+ LCD_CS=0;
+ SPI_Write(command);
+ LCD_CS=1;
+
+ return;
+}
+
+
+//==============================================================================
+
+void LCD_data(uint8_t data)
+{
+ LCD_A0=1;
+
+ LCD_CS=0;
+ SPI_Write(data);
+ LCD_CS=1;
+
+ return;
+}
+
+
+
+//==============================================================================
+
+void LCD_clear(void)
+{
+ unsigned int p, c;
+
+ for(p = 0; p < 8; p++)
+ {
+ LCD_cmd(CMD_SET_PAGE | p);
+ for(c = 0; c < 128; c++)
+ {
+ LCD_cmd(CMD_SET_COLUMN_LOWER | (c & 0xf));
+ LCD_cmd(CMD_SET_COLUMN_UPPER | ((c >> 4) & 0xf));
+ LCD_data(0x0);
+ }
+ }
+
+ return;
+}
+
+
+//==============================================================================
+
+
+void LCD_reset(void)
+{
+
+ // toggle RST low to reset; CS high
+ LCD_CS=1;
+ LCD_RST=0;
+ wait(0.01);
+ LCD_RST=1;
+
+ LCD_cmd(CMD_SET_BIAS_7); // LCD bias select
+ LCD_cmd(CMD_SET_ADC_NORMAL); // ADC select ===
+ LCD_cmd(CMD_SET_COM_REVERSE); // SHL select
+ LCD_cmd(CMD_SET_DISP_START_LINE); // Initial display line
+
+ LCD_cmd(CMD_SET_POWER_CONTROL | 0x4); // turn on voltage converter (VC=1, VR=0, VF=0)
+ wait(0.01);
+ LCD_cmd(CMD_SET_POWER_CONTROL | 0x6); // turn on voltage regulator (VC=1, VR=1, VF=0)
+ wait(0.01);
+ LCD_cmd(CMD_SET_POWER_CONTROL | 0x7); // turn on voltage follower (VC=1, VR=1, VF=1)
+ wait(0.01);
+
+ // set lcd operating voltage (regulator resistor, ref voltage resistor)
+ LCD_cmd(CMD_SET_RESISTOR_RATIO | 0x6);
+
+ LCD_cmd(CMD_DISPLAY_ON);
+ LCD_cmd(CMD_SET_ALLPTS_NORMAL);
+
+ // set contrast (leve= 0x09)
+ LCD_cmd(CMD_SET_VOLUME_FIRST);
+ LCD_cmd(CMD_SET_VOLUME_SECOND | (0x07 & 0x3f));
+ LCD_clear();
+
+ return;
+}
+
+//==============================================================================
+
+void LCD_write_buffer(unsigned int *buffer)
+{
+ unsigned int c, p;
+
+ for(p = 0; p < 8; p++)
+ {
+ LCD_cmd(CMD_SET_PAGE | pagemap[p]);
+ LCD_cmd(CMD_SET_COLUMN_LOWER | (0x0 & 0xf));
+ LCD_cmd(CMD_SET_COLUMN_UPPER | ((0x0 >> 4) & 0xf));
+ LCD_cmd(CMD_RMW);
+ LCD_data(0xFF); // X-axis offset
+ LCD_data(0xFF);
+ LCD_data(0xFF);
+ LCD_data(0xFF);
+
+ for(c = 0; c < 128; c++)
+ {
+ LCD_data(buffer[(128*p)+c]);
+ }
+ }
+
+ return;
+
+}
+
+
+
+
+//==============================================================================
+
+void LCD_setpixel(unsigned int *buff, uint8_t x, uint8_t y, uint8_t color)
+{
+ if ((x >= LCD_WIDTH) || (y >= LCD_HEIGHT))
+ return;
+
+ if (color)
+ buff[x+ (y/8)*128] |= (7-(y%8));
+ else
+ buff[x+ (y/8)*128] &= ~(7-(y%8));
+
+ return;
+}
+
+
+//==============================================================================
+
+void LCD_clearpixel(unsigned int *buff, uint8_t x, uint8_t y)
+{
+ if ((x >= LCD_WIDTH) || (y >= LCD_HEIGHT))
+ return;
+
+ buff[x+ (y/8)*128] &= ~(7-(y%8));
+
+ return;
+}
+
+
+//==============================================================================
+
+void LCD_drawline(unsigned int *buff, uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t color)
+{
+ uint8_t steep = abs(y1 - y0) > abs(x1 - x0);
+
+ if (steep) {
+ swap(x0, y0);
+ swap(x1, y1);
+ }
+
+ if (x0 > x1) {
+ swap(x0, x1);
+ swap(y0, y1);
+ }
+
+ uint8_t dx, dy;
+ dx = x1 - x0;
+ dy = abs(y1 - y0);
+
+ int err = dx / 2;
+ int ystep;
+
+ if (y0 < y1) {
+ ystep = 1;
+ } else {
+ ystep = -1;}
+
+ for (; x0<x1; x0++) {
+ if (steep) {
+ LCD_setpixel(buff, y0, x0, color);
+ } else {
+ LCD_setpixel(buff, x0, y0, color);
+ }
+ err -= dy;
+ if (err < 0) {
+ y0 += ystep;
+ err += dx;
+ }
+ }
+
+ return;
+}
+
+
+//==============================================================================
+
+void LCD_drawchar(unsigned int *buff, uint8_t x, uint8_t line, char c)
+{
+ uint8_t i;
+
+ for (i =0; i<5; i++ )
+ {
+ buff[x + (line*128) ] = font_PGM[((c-32)*5)+i];
+ x++;
+ }
+
+ return;
+}
+
+
+//==============================================================================
+// The 128x64 LCD allows 8 rows of 21 chars
+
+void LCD_drawstring(unsigned int *buff, uint8_t x, uint8_t line, char *c)
+{
+ unsigned int i=0;
+ while (c[i] != 0)
+ {
+ LCD_drawchar(buff, x, line, c[i]);
+ i++;
+ x += 6; // 6 pixels wide
+ if (x + 6 >= LCD_WIDTH) {
+ x = 0; // ran out of this line
+ line++;
+ }
+ if (line >= (LCD_HEIGHT/8))
+ return; // ran out of space :(
+ }
+
+ return;
+}
+
+
+//==============================================================================
+
+void Clear_buffer(unsigned int *buff)
+{
+ unsigned short i;
+
+ for(i=0; i<1024; i++)
+ buff[i]=0x00;
+
+ return;
+}
\ No newline at end of file
diff -r e4d7342be507 -r bbc3e860fa3d ST7565_LCD/ST7565_LCD.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ST7565_LCD/ST7565_LCD.h Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,77 @@
+/*******************************************************************************
+* File Name : ST7565_LCD.c
+* Author : Walter Trovò
+* Date First Issued : 20/03/2012
+*******************************************************************************/
+
+// ST7565R LCD module driver
+
+#ifndef __ST7565_LCD_H
+#define __ST7565_LCD_H
+
+#include "mbed.h"
+
+// LCD commands and definitions
+
+#define LCD_WIDTH 128
+#define LCD_HEIGHT 64
+
+#define CMD_DISPLAY_OFF 0xAE
+#define CMD_DISPLAY_ON 0xAF
+
+#define CMD_SET_DISP_START_LINE 0x40
+#define CMD_SET_PAGE 0xB0
+
+#define CMD_SET_COLUMN_UPPER 0x10
+#define CMD_SET_COLUMN_LOWER 0x00
+
+#define CMD_SET_ADC_NORMAL 0xA0
+#define CMD_SET_ADC_REVERSE 0xA1
+
+#define CMD_SET_DISP_NORMAL 0xA6
+#define CMD_SET_DISP_REVERSE 0xA7
+
+#define CMD_SET_ALLPTS_NORMAL 0xA4
+#define CMD_SET_ALLPTS_ON 0xA5
+#define CMD_SET_BIAS_9 0xA2
+#define CMD_SET_BIAS_7 0xA3
+
+#define CMD_RMW 0xE0
+#define CMD_RMW_CLEAR 0xEE
+#define CMD_INTERNAL_RESET 0xE2
+#define CMD_SET_COM_NORMAL 0xC0
+#define CMD_SET_COM_REVERSE 0xC8
+#define CMD_SET_POWER_CONTROL 0x28
+#define CMD_SET_RESISTOR_RATIO 0x20
+#define CMD_SET_VOLUME_FIRST 0x81
+#define CMD_SET_VOLUME_SECOND 0
+#define CMD_SET_STATIC_OFF 0xAC
+#define CMD_SET_STATIC_ON 0xAD
+#define CMD_SET_STATIC_REG 0x0
+#define CMD_SET_BOOSTER_FIRST 0xF8
+#define CMD_SET_BOOSTER_234 0
+#define CMD_SET_BOOSTER_5 1
+#define CMD_SET_BOOSTER_6 3
+#define CMD_NOP 0xE3
+#define CMD_TEST 0xF0
+
+#define swap(a, b) { unsigned short t = a; a = b; b = t; }
+
+// ------------- Functions prototype -----------------
+
+
+void SPI_Write(uint8_t data);
+void LCD_cmd(uint8_t command);
+void LCD_data(uint8_t data);
+void LCD_reset(void);
+void LCD_set_contrast(unsigned int level);
+void LCD_write_buffer(unsigned int *buffer);
+void LCD_clear(void);
+void LCD_setpixel(unsigned int *buff, uint8_t x, uint8_t y, uint8_t color);
+void LCD_clearpixel(unsigned int *buff, uint8_t x, uint8_t y);
+void LCD_drawline(unsigned int *buff, uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, uint8_t color);
+void LCD_drawchar(unsigned int *buff, uint8_t x, uint8_t line, char c);
+void LCD_drawstring(unsigned int *buff, uint8_t x, uint8_t line, char *c);
+void Clear_buffer(unsigned int *buff);
+
+#endif
diff -r e4d7342be507 -r bbc3e860fa3d ST7565_LCD/font_5x7.h
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/ST7565_LCD/font_5x7.h Tue Feb 13 08:22:23 2018 +0000
@@ -0,0 +1,101 @@
+
+#ifndef _SDA5708_FONT_5x7_H
+#define _SDA5708_FONT_5x7_H
+
+const unsigned short font_PGM[] = {
+0x00, 0x00, 0x00, 0x00, 0x00, // space (ASCII 0x20)
+0x00, 0x00, 0x5f, 0x00, 0x00, // !
+0x00, 0x07, 0x00, 0x07, 0x00, // "
+0x14, 0x7f, 0x14, 0x7f, 0x14, // #
+0x24, 0x2a, 0x7f, 0x2a, 0x12, // $
+0xc4, 0xc8, 0x10, 0x26, 0x46, // %
+0x36, 0x49, 0x55, 0x22, 0x50, // &
+0x00, 0x05, 0x03, 0x00, 0x00, // '
+0x00, 0x1c, 0x22, 0x41, 0x00, // (
+0x00, 0x41, 0x22, 0x1c, 0x00, // ) ????
+0x14, 0x08, 0x3E, 0x08, 0x14, // *
+0x08, 0x08, 0x3E, 0x08, 0x08, // +
+0x00, 0x00, 0x50, 0x30, 0x00, // ,
+0x08, 0x08, 0x08, 0x08, 0x08, // -
+0x00, 0x60, 0x60, 0x00, 0x00, // .
+0x20, 0x10, 0x08, 0x04, 0x02, // /
+0x3E, 0x51, 0x49, 0x45, 0x3E, // 0
+0x00, 0x42, 0x7F, 0x40, 0x00, // 1
+0x42, 0x61, 0x51, 0x49, 0x46, // 2
+0x21, 0x41, 0x45, 0x4B, 0x31, // 3
+0x18, 0x14, 0x12, 0x7F, 0x10, // 4
+0x27, 0x45, 0x45, 0x45, 0x39, // 5
+0x3C, 0x4A, 0x49, 0x49, 0x30, // 6
+0x01, 0x71, 0x09, 0x05, 0x03, // 7
+0x36, 0x49, 0x49, 0x49, 0x36, // 8
+0x06, 0x49, 0x49, 0x29, 0x1E, // 9
+0x00, 0x36, 0x36, 0x00, 0x00, // :
+0x00, 0x56, 0x36, 0x00, 0x00, // ;
+0x08, 0x14, 0x22, 0x41, 0x00, // <
+0x14, 0x14, 0x14, 0x14, 0x14, // =
+0x00, 0x41, 0x22, 0x14, 0x08, // >
+0x02, 0x01, 0x51, 0x09, 0x06, // ?
+0x32, 0x49, 0x59, 0x51, 0x3E, // @
+0x7E, 0x11, 0x11, 0x11, 0x7E, // A
+0x7F, 0x49, 0x49, 0x49, 0x36, // B
+0x3E, 0x41, 0x41, 0x41, 0x22, // C
+0x7F, 0x41, 0x41, 0x22, 0x1C, // D
+0x7F, 0x49, 0x49, 0x49, 0x41, // E
+0x7F, 0x09, 0x09, 0x09, 0x01, // F
+0x3E, 0x41, 0x49, 0x49, 0x7A, // G
+0x7F, 0x08, 0x08, 0x08, 0x7F, // H
+0x00, 0x41, 0x7F, 0x41, 0x00, // I
+0x20, 0x40, 0x41, 0x3F, 0x01, // J
+0x7F, 0x08, 0x14, 0x22, 0x41, // K
+0x7F, 0x40, 0x40, 0x40, 0x40, // L
+0x7F, 0x02, 0x0C, 0x02, 0x7F, // M
+0x7F, 0x04, 0x08, 0x10, 0x7F, // N
+0x3E, 0x41, 0x41, 0x41, 0x3E, // O
+0x7F, 0x09, 0x09, 0x09, 0x06, // P
+0x3E, 0x41, 0x51, 0x21, 0x5E, // Q
+0x7F, 0x09, 0x19, 0x29, 0x46, // R
+0x46, 0x49, 0x49, 0x49, 0x31, // S
+0x01, 0x01, 0x7F, 0x01, 0x01, // T
+0x3F, 0x40, 0x40, 0x40, 0x3F, // U
+0x1F, 0x20, 0x40, 0x20, 0x1F, // V
+0x3F, 0x40, 0x38, 0x40, 0x3F, // W
+0x63, 0x14, 0x08, 0x14, 0x63, // X
+0x07, 0x08, 0x70, 0x08, 0x07, // Y
+0x61, 0x51, 0x49, 0x45, 0x43, // Z
+0x00, 0x7F, 0x41, 0x41, 0x00, // [
+0x55, 0x2A, 0x55, 0x2A, 0x55, // 55
+0x00, 0x41, 0x41, 0x7F, 0x00, // ]
+0x04, 0x02, 0x01, 0x02, 0x04, // ^
+0x40, 0x40, 0x40, 0x40, 0x40, // _
+0x00, 0x01, 0x02, 0x04, 0x00, // '
+0x20, 0x54, 0x54, 0x54, 0x78, // a
+0x7F, 0x48, 0x44, 0x44, 0x38, // b
+0x38, 0x44, 0x44, 0x44, 0x20, // c
+0x38, 0x44, 0x44, 0x48, 0x7F, // d
+0x38, 0x54, 0x54, 0x54, 0x18, // e
+0x08, 0x7E, 0x09, 0x01, 0x02, // f
+0x0C, 0x52, 0x52, 0x52, 0x3E, // g
+0x7F, 0x08, 0x04, 0x04, 0x78, // h
+0x00, 0x44, 0x7D, 0x40, 0x00, // i
+0x20, 0x40, 0x44, 0x3D, 0x00, // j
+0x7F, 0x10, 0x28, 0x44, 0x00, // k
+0x00, 0x41, 0x7F, 0x40, 0x00, // l
+0x7C, 0x04, 0x18, 0x04, 0x78, // m
+0x7C, 0x08, 0x04, 0x04, 0x78, // n
+0x38, 0x44, 0x44, 0x44, 0x38, // o
+0x7C, 0x14, 0x14, 0x14, 0x08, // p
+0x08, 0x14, 0x14, 0x18, 0x7C, // q
+0x7C, 0x08, 0x04, 0x04, 0x08, // r
+0x48, 0x54, 0x54, 0x54, 0x20, // s
+0x04, 0x3F, 0x44, 0x40, 0x20, // t
+0x3C, 0x40, 0x40, 0x20, 0x7C, // u
+0x1C, 0x20, 0x40, 0x20, 0x1C, // v
+0x3C, 0x40, 0x30, 0x40, 0x3C, // w
+0x44, 0x28, 0x10, 0x28, 0x44, // x
+0x0C, 0x50, 0x50, 0x50, 0x3C, // y
+0x44, 0x64, 0x54, 0x4C, 0x44 // z
+
+};
+
+
+#endif
diff -r e4d7342be507 -r bbc3e860fa3d main.cpp
--- a/main.cpp Tue May 16 05:18:55 2017 +0000
+++ b/main.cpp Tue Feb 13 08:22:23 2018 +0000
@@ -1,19 +1,297 @@
#include "mbed.h"
#include "SDFileSystem.h"
-
-SDFileSystem sd(p5, p6, p7, p8, "sd"); // the pinout on the mbed Cool Components workshop board
+#include "ST7565_LCD.h"
+#include "QEI.h"
+
+#define BAT_GAIN 6.80
+#define BAT_OFFS 0.0
+
+PwmOut BEEP (D2); // Buzzer/speaker (PWM output)
+PwmOut BKL (D3); // LCD backlight control (PMW output)
+DigitalOut KAL (D0); // Keep-Alive/turn-off
+DigitalOut BTC (D2); // Aux BT module control
+DigitalIn Button (D4); // Pushbutton (digital input)
+AnalogIn BATT (A0); // Battery monitor
+AnalogIn ALS (A1); // Ambient Light sensor
-int main() {
- printf("Hello World!\n");
-
- mkdir("/sd/mydir", 0777);
+SDFileSystem sd(PB_15, PB_14, PB_13, PB_1, "sd"); // MOSI, MISO, SCK, CS
+
+// Quadrature encoder
+QEI Wheel(D5, D6, NC, 16);
+
+// Tickers
+Ticker Sec_Beat; // Timer ticker
+Ticker Display_Refresh; // Display refresh ticker
+
+//Serial ports
+Serial PC(USBTX, USBRX); // Virtual COM via USB
+//Serial BT_module(D1, D0); // BlueTooth module
+
+
+extern unsigned int buffer[128*64/8]; // RAM buffer used by LCD
+time_t seconds; // timestamp
+char Text[40]=""; // Text string used by LCD
+float Vbatt, ALLevel; // battery votage and ambient light level
+
+// ------------------- Prototypes -----------------------
+void Timer_tick(void);
+void Update_Display(void);
+void Set_Time(void);
+void Read_Voltages(void);
+void PowerOff(void);
+
+int main()
+{
+
+ KAL = 1; // ensure self-sustained power
+ //Button.mode(PullUp); // enable pushbutton pull-up
+ BKL.period_ms(3); // set LCD backlight PWM
+ BKL.write(1.0);
+ BEEP.period_us(2300); // set initial buzzer period and duty-cycle
+ BEEP.write(0.2);
+ Wheel.reset(); // clear encoder
+ LCD_reset();
+
+ // splash screen with date and time
+ sprintf(Text,__DATE__);
+ LCD_drawstring(buffer, 60, 5, Text);
+ sprintf(Text,__TIME__);
+ LCD_drawstring(buffer, 78, 6, Text);
+ LCD_write_buffer(buffer);
+
+
+ // enable LCD refresh ticker
+ Display_Refresh.attach(&Update_Display, 0.3);
+
+ if(Button) // if pushbutton is pressed
+ Set_Time(); // set RTC time and date
+
+ wait(2);
+ Clear_buffer(buffer);
+ BKL.write(0.5);
- FILE *fp = fopen("/sd/mydir/sdtest.txt", "w");
+ //PowerOff(); // Power-off test
+
+
+ // enable sec-beat ticker
+ Sec_Beat.attach(&Timer_tick, 1);
+
+
+
+ printf("Hello World!\n");
+ mkdir("/sd/system", 0777);
+ FILE *fp = fopen("/sd/system/sdlog.txt", "w");
if(fp == NULL) {
error("Could not open file for write\n");
}
fprintf(fp, "Hello fun SD Card World!");
fclose(fp);
-
printf("Goodbye World!\n");
+
+ while(1)
+ {
+ // dance
+ }
+
+
}
+
+
+//===========================================================================
+
+// ------------- Called every second ----------------------
+
+void Timer_tick()
+{
+ seconds = time(NULL);
+ strftime(Text, 50, "%d-%b-%Y %H:%M:%S", localtime(&seconds));
+ LCD_drawstring(buffer, 0, 0, Text);
+
+ // read voltages
+ Read_Voltages();
+
+ // write values to buffer
+ sprintf(Text,"VBATT= %4.2f", Vbatt);
+ LCD_drawstring(buffer, 0, 2, Text);
+ sprintf(Text,"ALL= %4.2f", ALLevel);
+ LCD_drawstring(buffer, 0, 3, Text);
+
+ // Send data to COM port
+ //PC.printf("Tset= %3.0f, Tpit= %3.0f, Tmeat= %3.0f, PWM= %3.0f\n",Tset, Tpit, Tmeat, FanSpeed);
+
+ //LCD_write_buffer(buffer); // LCD update
+
+ return;
+}
+
+
+//---------------------------------------------------------------------------
+void Update_Display(void)
+{
+ LCD_write_buffer(buffer); // LCD update
+ return;
+}
+
+//---------------------------------------------------------------------------
+void Set_Time(void)
+{
+ uint8_t Year=0, Month=0, Day=0, Hours=0, Mins=0, Secs=0;
+ time_t seconds;
+ struct tm t;
+
+ sprintf(Text,"TIME & DATE SETTING");
+ LCD_drawstring(buffer, 0, 0, Text);
+
+ // Set year
+ while(Button);
+ wait_ms(50);
+
+ while(!Button)
+ {
+ if(int(Wheel.getPulses())<0)
+ Wheel.reset();
+ Year = (uint8_t)(Wheel.getPulses());
+
+ if(Year>99)
+ Wheel.reset();
+
+ sprintf(Text, "Year: %2d", Year);
+ LCD_drawstring(buffer, 0, 2, Text);
+
+ }
+
+ // Set month
+ while(Button);
+ wait_ms(50);
+ Wheel.reset();
+ while(!Button)
+ {
+ if(int(Wheel.getPulses())<0)
+ Wheel.reset();
+ Month = (uint8_t)(Wheel.getPulses()/2);
+
+ if(Month>11)
+ Wheel.reset();
+
+ sprintf(Text, "Month: %2d", Month+1);
+ LCD_drawstring(buffer, 0, 3, Text);
+
+ }
+
+
+ // Set day
+ while(Button);
+ wait_ms(50);
+ Wheel.reset();
+ while(!Button)
+ {
+ if(int(Wheel.getPulses())<0)
+ Wheel.reset();
+ Day = (uint8_t)(Wheel.getPulses()/2);
+
+ if(Day>30)
+ Wheel.reset();
+
+ sprintf(Text, "Day: %2d", Day+1);
+ LCD_drawstring(buffer, 0, 4, Text);
+
+ }
+
+ // Set hours
+ while(Button);
+ wait_ms(50);
+ Wheel.reset();
+ while(!Button)
+ {
+ if(int(Wheel.getPulses())<0)
+ Wheel.reset();
+ Hours = (uint8_t)(Wheel.getPulses()/2);
+
+ if(Hours>22)
+ Wheel.reset();
+
+ sprintf(Text, "Hours: %2d", Hours+1);
+ LCD_drawstring(buffer, 0, 5, Text);
+
+ }
+ Hours++;
+
+ // Set minutes
+ while(Button);
+ wait_ms(50);
+ Wheel.reset();
+ while(!Button)
+ {
+ if(int(Wheel.getPulses())<0)
+ Wheel.reset();
+ Mins = (uint8_t)(Wheel.getPulses()/2);
+
+ if(Mins>59)
+ Wheel.reset();
+
+ sprintf(Text, "Minutes: %2d", Mins);
+ LCD_drawstring(buffer, 0, 6, Text);
+
+ }
+
+ t.tm_year = Year + 100;
+ t.tm_mon = Month;
+ t.tm_mday = Day + 1;
+ t.tm_hour = Hours;
+ t.tm_min = Mins;
+ t.tm_sec = Secs;
+
+ seconds = mktime(&t);
+ set_time(seconds);
+
+ return;
+}
+
+
+//---------------------------------------------------------------------------
+void Read_Voltages(void)
+{
+
+ double ADC_value;
+ uint8_t smooth = 10; // Number of samples to smooth
+ uint8_t i;
+
+ // Read battery voltage
+
+ ADC_value = BATT.read(); // cleanup
+ wait_ms(50);
+ ADC_value = 0;
+ for(i=0;i<smooth;i++)
+ ADC_value += BATT.read();
+
+ ADC_value = ADC_value/smooth;
+ Vbatt = (float)(ADC_value*BAT_GAIN)+BAT_OFFS;
+
+
+ // Read Ambient Light Level
+
+ ADC_value = ALS.read(); // cleanup
+ wait_ms(50);
+ ADC_value = 0;
+ for(i=0;i<smooth;i++)
+ ADC_value += ALS.read();
+
+ ADC_value = ADC_value/smooth;
+ ALLevel = (float)(ADC_value);
+
+return;
+}
+
+
+//---------------------------------------------------------------------------
+void PowerOff(void)
+{
+ BKL.write(1);
+ Clear_buffer(buffer);
+ sprintf(Text,"POWERING OFF");
+ LCD_drawstring(buffer, 20, 3, Text);
+ LCD_write_buffer(buffer);
+ wait(2);
+
+ KAL = 0;
+}
\ No newline at end of file