Revision 4:672976335e80, committed 2015-04-02

Comitter:

tlisowski3

Date:

Thu Apr 02 16:27:46 2015 +0000

Parent:

3:1371614703cd

Commit message:

EaPaper Library modified for EM027BS013

Changed in this revision

diff -r 1371614703cd -r 672976335e80 EM027BS013.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/EM027BS013.lib	Thu Apr 02 16:27:46 2015 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/embeddedartists/code/EM027BS013/#9297e33f50cf

diff -r 1371614703cd -r 672976335e80 EPD.cpp
--- a/EPD.cpp	Wed Jun 25 17:43:32 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,610 +0,0 @@
-// Copyright 2013 Pervasive Displays, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at:
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing,
-// software distributed under the License is distributed on an
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
-// express or implied.  See the License for the specific language
-// governing permissions and limitations under the License.
-
-
-
-#include <limits.h>
-
-#include "EPD.h"
-#include "mbed.h"
-
-// delays - more consistent naming
-#define Delay_ms(ms) wait_ms(ms)
-#define Delay_us(us) wait_us(us)
-
-// inline arrays
-#define ARRAY(type, ...) ((type[]){__VA_ARGS__})
-#define CU8(...) (ARRAY(const uint8_t, __VA_ARGS__))
-
-#define LOW  (0)
-#define HIGH (1)
-#define digitalWrite(pin, state) (pin) = (state)
-#define digitalRead(pin) (pin)
-
-Timer _time;
-#define millis() _time.read_ms()
-#define millis_start() _time.start()
-
-
-//static void PWM_start(int pin);
-//static void PWM_stop(int pin);
-
-//static void SPI_put(uint8_t c);
-//static void SPI_put_wait(uint8_t c, int busy_pin);
-//static void SPI_send(uint8_t cs_pin, const uint8_t *buffer, uint16_t length);
-
-
-EPD_Class::EPD_Class(EPD_size size,
-             PinName panel_on_pin,
-             PinName border_pin,
-             PinName discharge_pin,
-             PinName pwm_pin,
-             PinName reset_pin,
-             PinName busy_pin,
-             PinName chip_select_pin,
-             PinName mosi,
-             PinName miso,
-             PinName sck) :
-    EPD_Pin_PANEL_ON(panel_on_pin),
-    EPD_Pin_BORDER(border_pin),
-    EPD_Pin_DISCHARGE(discharge_pin),
-    EPD_Pin_PWM(pwm_pin),
-    EPD_Pin_RESET(reset_pin),
-    EPD_Pin_BUSY(busy_pin),
-    EPD_Pin_EPD_CS(chip_select_pin),
-    spi_(mosi,miso,sck) {
-
-    this->size = size;
-    this->stage_time = 480; // milliseconds
-    this->lines_per_display = 96;
-    this->dots_per_line = 128;
-    this->bytes_per_line = 128 / 8;
-    this->bytes_per_scan = 96 / 4;
-    this->filler = false;
-    spi_.frequency(12000000);   // 12 MHz SPI clock
-
-    // display size dependant items
-    {
-        static uint8_t cs[] = {0x72, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0f, 0xff, 0x00};
-        static uint8_t gs[] = {0x72, 0x03};
-        this->channel_select = cs;
-        this->channel_select_length = sizeof(cs);
-        this->gate_source = gs;
-        this->gate_source_length = sizeof(gs);
-    }
-
-    // set up size structure
-    switch (size) {
-    default:
-    case EPD_1_44:  // default so no change
-        break;
-
-    case EPD_2_0: {
-        this->lines_per_display = 96;
-        this->dots_per_line = 200;
-        this->bytes_per_line = 200 / 8;
-        this->bytes_per_scan = 96 / 4;
-        this->filler = true;
-        static uint8_t cs[] = {0x72, 0x00, 0x00, 0x00, 0x00, 0x01, 0xff, 0xe0, 0x00};
-        static uint8_t gs[] = {0x72, 0x03};
-        this->channel_select = cs;
-        this->channel_select_length = sizeof(cs);
-        this->gate_source = gs;
-        this->gate_source_length = sizeof(gs);
-        break;
-    }
-
-    case EPD_2_7: {
-        this->stage_time = 630; // milliseconds
-        this->lines_per_display = 176;
-        this->dots_per_line = 264;
-        this->bytes_per_line = 264 / 8;
-        this->bytes_per_scan = 176 / 4;
-        this->filler = true;
-        static uint8_t cs[] = {0x72, 0x00, 0x00, 0x00, 0x7f, 0xff, 0xfe, 0x00, 0x00};
-        static uint8_t gs[] = {0x72, 0x00};
-        this->channel_select = cs;
-        this->channel_select_length = sizeof(cs);
-        this->gate_source = gs;
-        this->gate_source_length = sizeof(gs);
-        break;
-    }
-    }
-
-    this->factored_stage_time = this->stage_time;
-}
-
-
-void EPD_Class::begin() {
-
-    // power up sequence
-    SPI_put(0x00);
-
-    digitalWrite(this->EPD_Pin_RESET, LOW);
-    digitalWrite(this->EPD_Pin_PANEL_ON, LOW);
-    digitalWrite(this->EPD_Pin_DISCHARGE, LOW);
-    digitalWrite(this->EPD_Pin_BORDER, LOW);
-    digitalWrite(this->EPD_Pin_EPD_CS, LOW);
-
-    //PWM_start(this->EPD_Pin_PWM);
-    EPD_Pin_PWM = 0.5;
-    Delay_ms(5);
-    digitalWrite(this->EPD_Pin_PANEL_ON, HIGH);
-    Delay_ms(10);
-
-    digitalWrite(this->EPD_Pin_RESET, HIGH);
-    digitalWrite(this->EPD_Pin_BORDER, HIGH);
-    digitalWrite(this->EPD_Pin_EPD_CS, HIGH);
-    Delay_ms(5);
-
-    digitalWrite(this->EPD_Pin_RESET, LOW);
-    Delay_ms(5);
-
-    digitalWrite(this->EPD_Pin_RESET, HIGH);
-    Delay_ms(5);
-
-    // wait for COG to become ready
-    while (HIGH == digitalRead(this->EPD_Pin_BUSY)) {
-    }
-
-    // channel select
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x01), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, this->channel_select, this->channel_select_length);
-
-    // DC/DC frequency
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x06), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0xff), 2);
-
-    // high power mode osc
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x07), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x9d), 2);
-
-
-    // disable ADC
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x08), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x00), 2);
-
-    // Vcom level
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x09), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0xd0, 0x00), 3);
-
-    // gate and source voltage levels
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x04), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, this->gate_source, this->gate_source_length);
-
-    Delay_ms(5);  //???
-
-    // driver latch on
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x03), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x01), 2);
-
-    // driver latch off
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x03), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x00), 2);
-
-    Delay_ms(5);
-
-    // charge pump positive voltage on
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x05), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x01), 2);
-
-    // final delay before PWM off
-    Delay_ms(30);
-    //PWM_stop(this->EPD_Pin_PWM);
-    EPD_Pin_PWM = 0.0;
-
-    // charge pump negative voltage on
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x05), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x03), 2);
-
-    Delay_ms(30);
-
-    // Vcom driver on
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x05), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x0f), 2);
-
-    Delay_ms(30);
-
-    // output enable to disable
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x02), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x24), 2);
-}
-
-
-void EPD_Class::end() {
-
-    this->frame_fixed(0x55, EPD_normal); // dummy frame
-    this->line(0x7fffu, 0, 0x55, false, EPD_normal); // dummy_line
-
-    Delay_ms(25);
-
-    digitalWrite(this->EPD_Pin_BORDER, LOW);
-    Delay_ms(30);
-
-    digitalWrite(this->EPD_Pin_BORDER, HIGH);
-
-    // latch reset turn on
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x03), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x01), 2);
-
-    // output enable off
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x02), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x05), 2);
-
-    // Vcom power off
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x05), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x0e), 2);
-
-    // power off negative charge pump
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x05), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x02), 2);
-
-    // discharge
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x04), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x0c), 2);
-
-    Delay_ms(120);
-
-    // all charge pumps off
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x05), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x00), 2);
-
-    // turn of osc
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x07), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x0d), 2);
-
-    // discharge internal - 1
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x04), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x50), 2);
-
-    Delay_ms(40);
-
-    // discharge internal - 2
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x04), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0xA0), 2);
-
-    Delay_ms(40);
-
-    // discharge internal - 3
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x04), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x00), 2);
-
-    // turn of power and all signals
-    digitalWrite(this->EPD_Pin_RESET, LOW);
-    digitalWrite(this->EPD_Pin_PANEL_ON, LOW);
-    digitalWrite(this->EPD_Pin_BORDER, LOW);
-    digitalWrite(this->EPD_Pin_EPD_CS, LOW);
-
-    digitalWrite(this->EPD_Pin_DISCHARGE, HIGH);
-
-    SPI_put(0x00);
-
-    Delay_ms(150);
-
-    digitalWrite(this->EPD_Pin_DISCHARGE, LOW);
-}
-
-
-// convert a temperature in Celcius to
-// the scale factor for frame_*_repeat methods
-int EPD_Class::temperature_to_factor_10x(int temperature) {
-    if (temperature <= -10) {
-        return 170;
-    } else if (temperature <= -5) {
-        return 120;
-    } else if (temperature <= 5) {
-        return 80;
-    } else if (temperature <= 10) {
-        return 40;
-    } else if (temperature <= 15) {
-        return 30;
-    } else if (temperature <= 20) {
-        return 20;
-    } else if (temperature <= 40) {
-        return 10;
-    }
-    return 7;
-}
-
-
-// One frame of data is the number of lines * rows. For example:
-// The 1.44” frame of data is 96 lines * 128 dots.
-// The 2” frame of data is 96 lines * 200 dots.
-// The 2.7” frame of data is 176 lines * 264 dots.
-
-// the image is arranged by line which matches the display size
-// so smallest would have 96 * 32 bytes
-
-void EPD_Class::frame_fixed(uint8_t fixed_value, EPD_stage stage) {
-    for (uint8_t line = 0; line < this->lines_per_display ; ++line) {
-        this->line(line, 0, fixed_value, false, stage);
-    }
-}
-
-
-void EPD_Class::frame_data(PROGMEM const uint8_t *image, EPD_stage stage){
-    for (uint8_t line = 0; line < this->lines_per_display ; ++line) {
-        this->line(line, &image[line * this->bytes_per_line], 0, true, stage);
-    }
-}
-
-
-#if defined(EPD_ENABLE_EXTRA_SRAM)
-void EPD_Class::frame_sram(const uint8_t *image, EPD_stage stage){
-    for (uint8_t line = 0; line < this->lines_per_display ; ++line) {
-        this->line(line, &image[line * this->bytes_per_line], 0, false, stage);
-    }
-}
-#endif
-
-
-void EPD_Class::frame_cb(uint32_t address, EPD_reader *reader, EPD_stage stage) {
-    static uint8_t buffer[264 / 8];
-    for (uint8_t line = 0; line < this->lines_per_display; ++line) {
-        reader(buffer, address + line * this->bytes_per_line, this->bytes_per_line);
-        this->line(line, buffer, 0, false, stage);
-    }
-}
-
-void EPD_Class::frame_fixed_repeat(uint8_t fixed_value, EPD_stage stage) {
-    long stage_time = this->factored_stage_time;
-   
-    do {         
-        millis_start();
-        unsigned long t_start = millis();
-        this->frame_fixed(fixed_value, stage);        
-        unsigned long t_end = millis();             
-        if (t_end > t_start) {
-            stage_time -= t_end - t_start;
-        } else {
-            stage_time -= t_start - t_end + 1 + ULONG_MAX;
-        }
-    } while (stage_time > 0);                
-}
-
-
-void EPD_Class::frame_data_repeat(PROGMEM const uint8_t *image, EPD_stage stage) {
-    long stage_time = this->factored_stage_time;
-    do {
-        millis_start();
-        unsigned long t_start = millis();
-        this->frame_data(image, stage);
-        unsigned long t_end = millis();
-        if (t_end > t_start) {
-            stage_time -= t_end - t_start;
-        } else {
-            stage_time -= t_start - t_end + 1 + ULONG_MAX;
-        }
-    } while (stage_time > 0);
-}
-
-
-#if defined(EPD_ENABLE_EXTRA_SRAM)
-void EPD_Class::frame_sram_repeat(const uint8_t *image, EPD_stage stage) {
-    long stage_time = this->factored_stage_time;
-    do {
-        millis_start();
-        unsigned long t_start = millis();
-        this->frame_sram(image, stage);
-        unsigned long t_end = millis();
-        if (t_end > t_start) {
-            stage_time -= t_end - t_start;
-        } else {
-            stage_time -= t_start - t_end + 1 + ULONG_MAX;
-        }
-    } while (stage_time > 0);
-}
-#endif
-
-
-void EPD_Class::frame_cb_repeat(uint32_t address, EPD_reader *reader, EPD_stage stage) {
-    long stage_time = this->factored_stage_time;
-    do {
-        millis_start();
-        unsigned long t_start = millis();
-        this->frame_cb(address, reader, stage);
-        unsigned long t_end = millis();
-        if (t_end > t_start) {
-            stage_time -= t_end - t_start;
-        } else {
-            stage_time -= t_start - t_end + 1 + ULONG_MAX;
-        }
-    } while (stage_time > 0);
-}
-
-
-void EPD_Class::line(uint16_t line, const uint8_t *data, uint8_t fixed_value, bool read_progmem, EPD_stage stage) {
-    // charge pump voltage levels
-    
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x04), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, this->gate_source, this->gate_source_length);
-
-    // send data
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x0a), 2);
-    Delay_us(10);
-
-    // CS low
-    digitalWrite(this->EPD_Pin_EPD_CS, LOW);
-    SPI_put_wait(0x72, this->EPD_Pin_BUSY);
-
-    // even pixels
-    for (uint16_t b = this->bytes_per_line; b > 0; --b) {
-        if (0 != data) {
-
-            uint8_t pixels = data[b - 1] & 0xaa;
-
-            switch(stage) {
-            case EPD_compensate:  // B -> W, W -> B (Current Image)
-                pixels = 0xaa | ((pixels ^ 0xaa) >> 1);
-                break;
-            case EPD_white:       // B -> N, W -> W (Current Image)
-                pixels = 0x55 + ((pixels ^ 0xaa) >> 1);
-                break;
-            case EPD_inverse:     // B -> N, W -> B (New Image)
-                pixels = 0x55 | (pixels ^ 0xaa);
-                break;
-            case EPD_normal:       // B -> B, W -> W (New Image)
-                pixels = 0xaa | (pixels >> 1);
-                break;
-            }
-            SPI_put_wait(pixels, this->EPD_Pin_BUSY);
-        } else {
-            SPI_put_wait(fixed_value, this->EPD_Pin_BUSY);
-        }   }
-
-    // scan line
-    for (uint16_t b = 0; b < this->bytes_per_scan; ++b) {
-        if (line / 4 == b) {
-            SPI_put_wait(0xc0 >> (2 * (line & 0x03)), this->EPD_Pin_BUSY);
-        } else {
-            SPI_put_wait(0x00, this->EPD_Pin_BUSY);
-        }
-    }
-
-    // odd pixels
-    for (uint16_t b = 0; b < this->bytes_per_line; ++b) {
-        if (0 != data) {
-
-            uint8_t pixels = data[b] & 0x55;
-
-            switch(stage) {
-            case EPD_compensate:  // B -> W, W -> B (Current Image)
-                pixels = 0xaa | (pixels ^ 0x55);
-                break;
-            case EPD_white:       // B -> N, W -> W (Current Image)
-                pixels = 0x55 + (pixels ^ 0x55);
-                break;
-            case EPD_inverse:     // B -> N, W -> B (New Image)
-                pixels = 0x55 | ((pixels ^ 0x55) << 1);
-                break;
-            case EPD_normal:       // B -> B, W -> W (New Image)
-                pixels = 0xaa | pixels;
-                break;
-            }
-            uint8_t p1 = (pixels >> 6) & 0x03;
-            uint8_t p2 = (pixels >> 4) & 0x03;
-            uint8_t p3 = (pixels >> 2) & 0x03;
-            uint8_t p4 = (pixels >> 0) & 0x03;
-            pixels = (p1 << 0) | (p2 << 2) | (p3 << 4) | (p4 << 6);
-            SPI_put_wait(pixels, this->EPD_Pin_BUSY);
-        } else {
-            SPI_put_wait(fixed_value, this->EPD_Pin_BUSY);
-        }
-    }
-
-    if (this->filler) {
-        SPI_put_wait(0x00, this->EPD_Pin_BUSY);
-    }
-
-    // CS high
-    digitalWrite(this->EPD_Pin_EPD_CS, HIGH);
-
-    // output data to panel
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x70, 0x02), 2);
-    Delay_us(10);
-    SPI_send(this->EPD_Pin_EPD_CS, CU8(0x72, 0x2f), 2);
-}
-
-
-void EPD_Class::SPI_put(uint8_t c) {
-    
-    spi_.write(c);
-    //spi_.fastWrite(c);
-    
-    
-}
-
-
-
-void EPD_Class::SPI_put_wait(uint8_t c, DigitalIn busy_pin) {
-
-    SPI_put(c);
-
-    // wait for COG ready
-    while (HIGH == digitalRead(busy_pin)) {
-    }
-}
-
-
-void EPD_Class::SPI_send(DigitalOut cs_pin, const uint8_t *buffer, uint16_t length) {
-
-    // CS low
-    digitalWrite(cs_pin, LOW);
-
-    // send all data
-    for (uint16_t i = 0; i < length; ++i) {
-        spi_.write(*buffer++);
-    }
-
-    // CS high
-    digitalWrite(cs_pin, HIGH);
-}
-
-
-//static void PWM_start(int pin) {
-//    analogWrite(pin, 128);  // 50% duty cycle
-//}
-
-
-//static void PWM_stop(int pin) {
-//    analogWrite(pin, 0);
-//}

diff -r 1371614703cd -r 672976335e80 EPD.h
--- a/EPD.h	Wed Jun 25 17:43:32 2014 +0000
+++ /dev/null	Thu Jan 01 00:00:00 1970 +0000
@@ -1,155 +0,0 @@
-// Copyright 2013 Pervasive Displays, Inc.
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at:
-//
-//   http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing,
-// software distributed under the License is distributed on an
-// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either
-// express or implied.  See the License for the specific language
-// governing permissions and limitations under the License.
-
-#ifndef EPD_H
-#define EPD_H
-
-#include "mbed.h"
-
-#define PROGMEM
-
-
-typedef enum {
-    EPD_1_44,        // 128 x 96
-    EPD_2_0,         // 200 x 96
-    EPD_2_7          // 264 x 176
-} EPD_size;
-
-typedef enum {           // Image pixel -> Display pixel
-    EPD_compensate,  // B -> W, W -> B (Current Image)
-    EPD_white,       // B -> N, W -> W (Current Image)
-    EPD_inverse,     // B -> N, W -> B (New Image)
-    EPD_normal       // B -> B, W -> W (New Image)
-} EPD_stage;
-
-typedef void EPD_reader(void *buffer, uint32_t address, uint16_t length);
-
-class EPD_Class {
-private:
-    DigitalOut EPD_Pin_PANEL_ON;
-    DigitalOut EPD_Pin_BORDER;
-    DigitalOut EPD_Pin_DISCHARGE;
-    PwmOut EPD_Pin_PWM;
-    DigitalOut EPD_Pin_RESET;
-    DigitalIn EPD_Pin_BUSY;
-    DigitalOut EPD_Pin_EPD_CS;
-    SPI spi_;    
-
-    EPD_size size;
-    uint16_t stage_time;
-    uint16_t factored_stage_time;
-    uint16_t lines_per_display;
-    uint16_t dots_per_line;
-    uint16_t bytes_per_line;
-    uint16_t bytes_per_scan;
-    PROGMEM const uint8_t *gate_source;
-    uint16_t gate_source_length;
-    PROGMEM const uint8_t *channel_select;
-    uint16_t channel_select_length;
-
-    bool filler;
-    
-    void SPI_put(uint8_t c);
-    void SPI_put_wait(uint8_t c, DigitalIn busy_pin);
-    void SPI_send(DigitalOut cs_pin, const uint8_t *buffer, uint16_t length);
-
-public:
-    // power up and power down the EPD panel
-    void begin();
-    void end();
-
-    void setFactor(int temperature = 25) {
-        this->factored_stage_time = this->stage_time * this->temperature_to_factor_10x(temperature) / 10;
-    }
-
-    // clear display (anything -> white)
-    void clear() {
-        this->frame_fixed_repeat(0xff, EPD_compensate);
-        this->frame_fixed_repeat(0xff, EPD_white);
-        this->frame_fixed_repeat(0xaa, EPD_inverse);
-        this->frame_fixed_repeat(0xaa, EPD_normal);
-    }
-
-    // assuming a clear (white) screen output an image (PROGMEM data)
-    void image(const uint8_t *image) {
-        this->frame_fixed_repeat(0xaa, EPD_compensate);
-        this->frame_fixed_repeat(0xaa, EPD_white);
-        this->frame_data_repeat(image, EPD_inverse);
-        this->frame_data_repeat(image, EPD_normal);
-    }
-
-    // change from old image to new image (PROGMEM data)
-    void image(const uint8_t *old_image, const uint8_t *new_image) {
-        this->frame_data_repeat(old_image, EPD_compensate);
-        this->frame_data_repeat(old_image, EPD_white);
-        this->frame_data_repeat(new_image, EPD_inverse);
-        this->frame_data_repeat(new_image, EPD_normal);
-    }
-
-#if defined(EPD_ENABLE_EXTRA_SRAM)
-
-    // change from old image to new image (SRAM version)
-    void image_sram(const uint8_t *old_image, const uint8_t *new_image) {
-        this->frame_sram_repeat(old_image, EPD_compensate);
-        this->frame_sram_repeat(old_image, EPD_white);
-        this->frame_sram_repeat(new_image, EPD_inverse);
-        this->frame_sram_repeat(new_image, EPD_normal);
-    }
-#endif
-
-    // Low level API calls
-    // ===================
-
-    // single frame refresh
-    void frame_fixed(uint8_t fixed_value, EPD_stage stage);
-    void frame_data(const uint8_t *new_image, EPD_stage stage);
-#if defined(EPD_ENABLE_EXTRA_SRAM)
-    void frame_sram(const uint8_t *new_image, EPD_stage stage);
-#endif
-    void frame_cb(uint32_t address, EPD_reader *reader, EPD_stage stage);
-
-    // stage_time frame refresh
-    void frame_fixed_repeat(uint8_t fixed_value, EPD_stage stage);
-    void frame_data_repeat(const uint8_t *new_image, EPD_stage stage);
-#if defined(EPD_ENABLE_EXTRA_SRAM)
-    void frame_sram_repeat(const uint8_t *new_image, EPD_stage stage);
-#endif
-    void frame_cb_repeat(uint32_t address, EPD_reader *reader, EPD_stage stage);
-
-    // convert temperature to compensation factor
-    int temperature_to_factor_10x(int temperature);
-
-    // single line display - very low-level
-    // also has to handle AVR progmem
-    void line(uint16_t line, const uint8_t *data, uint8_t fixed_value, bool read_progmem, EPD_stage stage);
-
-    // inline static void attachInterrupt();
-    // inline static void detachInterrupt();
-
-    EPD_Class(EPD_size size,
-          PinName panel_on_pin,
-          PinName border_pin,
-          PinName discharge_pin,
-          PinName pwm_pin,
-          PinName reset_pin,
-          PinName busy_pin,
-          PinName chip_select_pin,
-          PinName mosi,
-          PinName miso,
-          PinName sck);
-
-};
-
-#endif
-

diff -r 1371614703cd -r 672976335e80 EaEpaper.cpp
--- a/EaEpaper.cpp	Wed Jun 25 17:43:32 2014 +0000
+++ b/EaEpaper.cpp	Thu Apr 02 16:27:46 2015 +0000
@@ -6,30 +6,36 @@
 #define LM75A_ADDRESS (0x92) // 0x49 << 1
 #define LM75A_CMD_TEMP 0x00
 
-static uint8_t _oldImage[EA_IMG_BUF_SZ];
 static uint8_t _newImage[EA_IMG_BUF_SZ];
 
-EaEpaper::EaEpaper(PinName p_on, PinName border, PinName discharge,  PinName reset, PinName busy, PinName cs,
-                   PinName pwm, 
-                   PinName mosi, PinName miso, PinName sck, 
-                   PinName sda, PinName scl, 
+EaEpaper::EaEpaper(PinName sec03_SpiSCK,
+                       PinName sec04_SpiMOSI,
+                       PinName sec05_SpiMISO,
+                       PinName sec06_EpdCS,
+                       PinName sec07_EpdBusy,
+                       PinName sec08_EpdBorder,
+                       PinName sec09_I2cSCL,
+                       PinName sec10_I2cSDA,
+                       PinName sec11_FlashCS,
+                       PinName sec12_EpdReset,
+                       PinName sec13_EpdPanelOn,
+                       PinName sec14_EpdDischarge, 
                    const char* name):
-    epd_(EPD_2_7,
-         p_on,  // panel_on_pin
-         border, // border_pin
-         discharge, // discharge_pin
-         pwm, // pwm_pin
-         reset, // reset_pin
-         busy, // busy_pin
-         cs,  // chip_select_pin
-         mosi,  // mosi
-         miso,  // miso
-         sck),  // sck
-    i2c_(sda, scl),
+    em_(sec03_SpiSCK,
+                sec04_SpiMOSI,
+                sec05_SpiMISO,
+                sec06_EpdCS,
+                sec07_EpdBusy,
+                sec08_EpdBorder,
+                sec09_I2cSCL,
+                sec10_I2cSDA,
+                sec11_FlashCS,
+                sec12_EpdReset,
+                sec13_EpdPanelOn,
+                sec14_EpdDischarge),  // sck
     GraphicsDisplay(name)
 {
     draw_mode = NORMAL;
-    memset(_oldImage, 0, EA_IMG_BUF_SZ);
     memset(_newImage, 0, EA_IMG_BUF_SZ);
 }
 
@@ -48,40 +54,16 @@
 // erase pixel after power up
 void EaEpaper::clear()
 {
-    epd_.begin();
-    epd_.setFactor(readTemperature()/100);
-    epd_.clear();
-    epd_.end();
-
-    memset(_oldImage, 0, EA_IMG_BUF_SZ);
-    memset(_newImage, 0, EA_IMG_BUF_SZ);
+    memset(_newImage, 0xFF, EA_IMG_BUF_SZ);
 }
 
 // update screen  _newImage -> _oldImage
 void EaEpaper::write_disp(void)
 {
-    epd_.begin();
-    epd_.setFactor(readTemperature()/100);
-    epd_.image(_oldImage, _newImage);
-    epd_.end();
-
-    memcpy(_oldImage, _newImage, EA_IMG_BUF_SZ);
+    em_.drawImage(_newImage);
 }
 
 // read LM75A sensor on board to calculate display speed
-int32_t EaEpaper::readTemperature()
-{
-    char buf[2];
-    int32_t t = 0;
-    char reg = LM75A_CMD_TEMP;
-
-    i2c_.write(LM75A_ADDRESS, &reg, 1);
-    i2c_.read(LM75A_ADDRESS, buf, 2);
-
-    t = ((buf[0] << 8) | (buf[1]));
-
-    return ((t * 100) >> 8);
-}
 
 // set one pixel in buffer _newImage
 
@@ -92,19 +74,19 @@
 
     if(draw_mode == NORMAL) {
         if(color == 0)
-            _newImage[(x / 8) + ((y-1) * 33)] &= ~(1 << (x%8));  // erase pixel
+            _newImage[(x / 8) + ((y-1) * 33)] &= ~(1 << (7-(x%8)));  // erase pixel
         else
-            _newImage[(x / 8) + ((y-1) * 33)] |= (1 << (x%8));   // set pixel
+            _newImage[(x / 8) + ((y-1) * 33)] |= (1 << (7-(x%8)));   // set pixel
     } else { // XOR mode
         if(color == 1)
-            _newImage[(x / 8) + ((y-1) * 33)] ^= (1 << (x%8));   // xor pixel
+            _newImage[(x / 8) + ((y-1) * 33)] ^= (1 << (7-(x%8)));   // xor pixel
     }
 }
 
 // clear screen
 void EaEpaper::cls(void)
 {
-    memset(_newImage, 0, EA_IMG_BUF_SZ);  // clear display buffer
+    memset(_newImage, 0xFF, EA_IMG_BUF_SZ);  // clear display buffer
 }
 
 // print line

diff -r 1371614703cd -r 672976335e80 EaEpaper.h
--- a/EaEpaper.h	Wed Jun 25 17:43:32 2014 +0000
+++ b/EaEpaper.h	Thu Apr 02 16:27:46 2015 +0000
@@ -20,7 +20,7 @@
  * Includes
  */
 #include "mbed.h"
-#include "EPD.h"
+#include "EM027BS013.h"
 #include "GraphicsDisplay.h"
 
 // we have to double buffer the display  
@@ -93,10 +93,18 @@
     /**
      * Constructor.
      */ 
-    EaEpaper(PinName p_on, PinName border, PinName discharge, PinName reset, PinName busy, PinName cs,  // IO-Pins
-             PinName pwm,                                                                               // PWM Pin        
-             PinName mosi, PinName miso, PinName sck,                                                   // SPI
-             PinName sda, PinName scl,                                                                  // I2C
+    EaEpaper::EaEpaper(PinName sec03_SpiSCK,
+                       PinName sec04_SpiMOSI,
+                       PinName sec05_SpiMISO,
+                       PinName sec06_EpdCS,
+                       PinName sec07_EpdBusy,
+                       PinName sec08_EpdBorder,
+                       PinName sec09_I2cSCL,
+                       PinName sec10_I2cSDA,
+                       PinName sec11_FlashCS,
+                       PinName sec12_EpdReset,
+                       PinName sec13_EpdPanelOn,
+                       PinName sec14_EpdDischarge,                                                                  // I2C
              const char* name ="E_Paper");
     
     /** Get the width of the screen in pixel
@@ -249,11 +257,9 @@
     
  private:
     
-    EPD_Class epd_;
-    I2C i2c_;
+    EM027BS013 em_;
     unsigned int char_x;
     unsigned int char_y;
-    int32_t readTemperature();
     
 };
  

diff -r 1371614703cd -r 672976335e80 TFT_fonts.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/TFT_fonts.lib	Thu Apr 02 16:27:46 2015 +0000
@@ -0,0 +1,1 @@
+http://developer.mbed.org/users/dreschpe/code/TFT_fonts/#76774250fcec