Revision 0:1d2c0afef43c, committed 2017-12-29

Comitter:

spin7ion

Date:

Fri Dec 29 22:35:18 2017 +0000

Commit message:

test;

Changed in this revision

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/epd.h	Fri Dec 29 22:35:18 2017 +0000
@@ -0,0 +1,156 @@
+#ifndef EPD_H
+#define EPD_H
+
+// Display resolution
+#define EPD_WIDTH       128
+#define EPD_HEIGHT      296
+
+// EPD2IN9 commands
+#define DRIVER_OUTPUT_CONTROL                       0x01
+#define BOOSTER_SOFT_START_CONTROL                  0x0C
+#define GATE_SCAN_START_POSITION                    0x0F
+#define DEEP_SLEEP_MODE                             0x10
+#define DATA_ENTRY_MODE_SETTING                     0x11
+#define SW_RESET                                    0x12
+#define TEMPERATURE_SENSOR_CONTROL                  0x1A
+#define MASTER_ACTIVATION                           0x20
+#define DISPLAY_UPDATE_CONTROL_1                    0x21
+#define DISPLAY_UPDATE_CONTROL_2                    0x22
+#define WRITE_RAM                                   0x24
+#define WRITE_VCOM_REGISTER                         0x2C
+#define WRITE_LUT_REGISTER                          0x32
+#define SET_DUMMY_LINE_PERIOD                       0x3A
+#define SET_GATE_TIME                               0x3B
+#define BORDER_WAVEFORM_CONTROL                     0x3C
+#define SET_RAM_X_ADDRESS_START_END_POSITION        0x44
+#define SET_RAM_Y_ADDRESS_START_END_POSITION        0x45
+#define SET_RAM_X_ADDRESS_COUNTER                   0x4E
+#define SET_RAM_Y_ADDRESS_COUNTER                   0x4F
+#define TERMINATE_FRAME_READ_WRITE                  0xFF
+
+#define BACKGROUND_BLACK                            0x00
+#define BACKGROUND_WHITE                            0xFF
+
+const unsigned char lut_full_update[] =
+{
+    0x02, 0x02, 0x01, 0x11, 0x12, 0x12, 0x22, 0x22, 
+    0x66, 0x69, 0x69, 0x59, 0x58, 0x99, 0x99, 0x88, 
+    0x00, 0x00, 0x00, 0x00, 0xF8, 0xB4, 0x13, 0x51, 
+    0x35, 0x51, 0x51, 0x19, 0x01, 0x00
+};
+
+const unsigned char lut_partial_update[] =
+{
+    0x10, 0x18, 0x18, 0x08, 0x18, 0x18, 0x08, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 
+    0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12, 
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00
+};
+
+/*static unsigned char lut_full_update[] = {0x32,0x02,0x02,0x01,0x11,0x12,0x12,0x22,0x22,0x66,0x69,0x69,0x59,0x58,0x99,0x99,0x88,0x00,0x00,0x00
+,0x00,0xF8,0xB4,0x13,0x51,0x35,0x51,0x51,0x19,0x01,0x00};
+  static unsigned char lut_partial_update[] = {0x32,0x10,0x18,0x18,0x08,0x18,0x18,0x08,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00
+,0x00,0x13,0x14,0x44,0x12,0x00,0x00,0x00,0x00,0x00,0x00};*/
+
+const unsigned char FONT8x8[97][8] = {
+0x08,0x08,0x08,0x00,0x00,0x00,0x00,0x00, // columns, rows, num_bytes_per_char
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00, // space 0x20
+0x30,0x78,0x78,0x30,0x30,0x00,0x30,0x00, // !
+0x6C,0x6C,0x6C,0x00,0x00,0x00,0x00,0x00, // "
+0x6C,0x6C,0xFE,0x6C,0xFE,0x6C,0x6C,0x00, // #
+0x18,0x3E,0x60,0x3C,0x06,0x7C,0x18,0x00, // $
+0x00,0x63,0x66,0x0C,0x18,0x33,0x63,0x00, // %
+0x1C,0x36,0x1C,0x3B,0x6E,0x66,0x3B,0x00, // &
+0x30,0x30,0x60,0x00,0x00,0x00,0x00,0x00, // '
+0x0C,0x18,0x30,0x30,0x30,0x18,0x0C,0x00, // (
+0x30,0x18,0x0C,0x0C,0x0C,0x18,0x30,0x00, // )
+0x00,0x66,0x3C,0xFF,0x3C,0x66,0x00,0x00, // *
+0x00,0x30,0x30,0xFC,0x30,0x30,0x00,0x00, // +
+0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x30, // ,
+0x00,0x00,0x00,0x7E,0x00,0x00,0x00,0x00, // -
+0x00,0x00,0x00,0x00,0x00,0x18,0x18,0x00, // .
+0x03,0x06,0x0C,0x18,0x30,0x60,0x40,0x00, // / (forward slash)
+0x3E,0x63,0x63,0x6B,0x63,0x63,0x3E,0x00, // 0 0x30
+0x18,0x38,0x58,0x18,0x18,0x18,0x7E,0x00, // 1
+0x3C,0x66,0x06,0x1C,0x30,0x66,0x7E,0x00, // 2
+0x3C,0x66,0x06,0x1C,0x06,0x66,0x3C,0x00, // 3
+0x0E,0x1E,0x36,0x66,0x7F,0x06,0x0F,0x00, // 4
+0x7E,0x60,0x7C,0x06,0x06,0x66,0x3C,0x00, // 5
+0x1C,0x30,0x60,0x7C,0x66,0x66,0x3C,0x00, // 6
+0x7E,0x66,0x06,0x0C,0x18,0x18,0x18,0x00, // 7
+0x3C,0x66,0x66,0x3C,0x66,0x66,0x3C,0x00, // 8
+0x3C,0x66,0x66,0x3E,0x06,0x0C,0x38,0x00, // 9
+0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x00, // :
+0x00,0x18,0x18,0x00,0x00,0x18,0x18,0x30, // ;
+0x0C,0x18,0x30,0x60,0x30,0x18,0x0C,0x00, // <
+0x00,0x00,0x7E,0x00,0x00,0x7E,0x00,0x00, // =
+0x30,0x18,0x0C,0x06,0x0C,0x18,0x30,0x00, // >
+0x3C,0x66,0x06,0x0C,0x18,0x00,0x18,0x00, // ?
+0x3E,0x63,0x6F,0x69,0x6F,0x60,0x3E,0x00, // @ 0x40
+0x18,0x3C,0x66,0x66,0x7E,0x66,0x66,0x00, // A
+0x7E,0x33,0x33,0x3E,0x33,0x33,0x7E,0x00, // B
+0x1E,0x33,0x60,0x60,0x60,0x33,0x1E,0x00, // C
+0x7C,0x36,0x33,0x33,0x33,0x36,0x7C,0x00, // D
+0x7F,0x31,0x34,0x3C,0x34,0x31,0x7F,0x00, // E
+0x7F,0x31,0x34,0x3C,0x34,0x30,0x78,0x00, // F
+0x1E,0x33,0x60,0x60,0x67,0x33,0x1F,0x00, // G
+0x66,0x66,0x66,0x7E,0x66,0x66,0x66,0x00, // H
+0x3C,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // I
+0x0F,0x06,0x06,0x06,0x66,0x66,0x3C,0x00, // J
+0x73,0x33,0x36,0x3C,0x36,0x33,0x73,0x00, // K
+0x78,0x30,0x30,0x30,0x31,0x33,0x7F,0x00, // L
+0x63,0x77,0x7F,0x7F,0x6B,0x63,0x63,0x00, // M
+0x63,0x73,0x7B,0x6F,0x67,0x63,0x63,0x00, // N
+0x3E,0x63,0x63,0x63,0x63,0x63,0x3E,0x00, // O
+0x7E,0x33,0x33,0x3E,0x30,0x30,0x78,0x00, // P 0x50
+0x3C,0x66,0x66,0x66,0x6E,0x3C,0x0E,0x00, // Q
+0x7E,0x33,0x33,0x3E,0x36,0x33,0x73,0x00, // R
+0x3C,0x66,0x30,0x18,0x0C,0x66,0x3C,0x00, // S
+0x7E,0x5A,0x18,0x18,0x18,0x18,0x3C,0x00, // T
+0x66,0x66,0x66,0x66,0x66,0x66,0x7E,0x00, // U
+0x66,0x66,0x66,0x66,0x66,0x3C,0x18,0x00, // V
+0x63,0x63,0x63,0x6B,0x7F,0x77,0x63,0x00, // W
+0x63,0x63,0x36,0x1C,0x1C,0x36,0x63,0x00, // X
+0x66,0x66,0x66,0x3C,0x18,0x18,0x3C,0x00, // Y
+0x7F,0x63,0x46,0x0C,0x19,0x33,0x7F,0x00, // Z
+0x3C,0x30,0x30,0x30,0x30,0x30,0x3C,0x00, // [
+0x60,0x30,0x18,0x0C,0x06,0x03,0x01,0x00, // \ (back slash)
+0x3C,0x0C,0x0C,0x0C,0x0C,0x0C,0x3C,0x00, // ]
+0x08,0x1C,0x36,0x63,0x00,0x00,0x00,0x00, // ^
+0x00,0x00,0x00,0x00,0x00,0x00,0x00,0xFF, // _
+0x18,0x18,0x0C,0x00,0x00,0x00,0x00,0x00, // ` 0x60
+0x00,0x00,0x3C,0x06,0x3E,0x66,0x3B,0x00, // a
+0x70,0x30,0x3E,0x33,0x33,0x33,0x6E,0x00, // b
+0x00,0x00,0x3C,0x66,0x60,0x66,0x3C,0x00, // c
+0x0E,0x06,0x3E,0x66,0x66,0x66,0x3B,0x00, // d
+0x00,0x00,0x3C,0x66,0x7E,0x60,0x3C,0x00, // e
+0x1C,0x36,0x30,0x78,0x30,0x30,0x78,0x00, // f
+0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x7C, // g
+0x70,0x30,0x36,0x3B,0x33,0x33,0x73,0x00, // h
+0x18,0x00,0x38,0x18,0x18,0x18,0x3C,0x00, // i
+0x06,0x00,0x06,0x06,0x06,0x66,0x66,0x3C, // j
+0x70,0x30,0x33,0x36,0x3C,0x36,0x73,0x00, // k
+0x38,0x18,0x18,0x18,0x18,0x18,0x3C,0x00, // l
+0x00,0x00,0x66,0x7F,0x7F,0x6B,0x63,0x00, // m
+0x00,0x00,0x7C,0x66,0x66,0x66,0x66,0x00, // n
+0x00,0x00,0x3C,0x66,0x66,0x66,0x3C,0x00, // o
+0x00,0x00,0x6E,0x33,0x33,0x3E,0x30,0x78, // p
+0x00,0x00,0x3B,0x66,0x66,0x3E,0x06,0x0F, // q
+0x00,0x00,0x6E,0x3B,0x33,0x30,0x78,0x00, // r
+0x00,0x00,0x3E,0x60,0x3C,0x06,0x7C,0x00, // s
+0x08,0x18,0x3E,0x18,0x18,0x1A,0x0C,0x00, // t
+0x00,0x00,0x66,0x66,0x66,0x66,0x3B,0x00, // u
+0x00,0x00,0x66,0x66,0x66,0x3C,0x18,0x00, // v
+0x00,0x00,0x63,0x6B,0x7F,0x7F,0x36,0x00, // w
+0x00,0x00,0x63,0x36,0x1C,0x36,0x63,0x00, // x
+0x00,0x00,0x66,0x66,0x66,0x3E,0x06,0x7C, // y
+0x00,0x00,0x7E,0x4C,0x18,0x32,0x7E,0x00, // z
+0x0E,0x18,0x18,0x70,0x18,0x18,0x0E,0x00, // {
+0x0C,0x0C,0x0C,0x00,0x0C,0x0C,0x0C,0x00, // |
+0x70,0x18,0x18,0x0E,0x18,0x18,0x70,0x00, // }
+0x3B,0x6E,0x00,0x00,0x00,0x00,0x00,0x00, // ~
+0x1C,0x36,0x36,0x1C,0x00,0x00,0x00,0x00}; // DEL
+
+unsigned char img[EPD_WIDTH][EPD_HEIGHT];
+
+#endif /* EPD2IN9_H */
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Fri Dec 29 22:35:18 2017 +0000
@@ -0,0 +1,244 @@
+#include "stm32f103c8t6.h"
+#include "mbed.h"
+#include "epd.h"
+ 
+DigitalOut  myled1(LED1);
+
+DigitalOut  edp_reset(PB_0);
+DigitalOut  edp_dataCommand(PB_10);
+DigitalOut  edp_chipSelect(PA_4);
+DigitalIn   edp_busy(PB_11);
+SPI spi(PA_7,PA_6,PA_5); // mosi, miso, sclk, ss
+//DigitalOut eink(PB_0);
+/*
+EaEpaper epaper(NC,             // PWR_CTRL
+                NC,            // BORDER
+                PB_10,            // DISCHARGE
+                PB_0,            // RESET_DISP
+                PB_11,            // BUSY
+                PA_4,             // SSEL
+                NC,            // PWM
+                PA_7,PA_6,PA_5,       // MOSI,MISO,SCLK
+                "eink");       // SDA,SCL */
+ 
+void EPD_SendCommand(unsigned char data) {
+    edp_chipSelect=0;
+    edp_dataCommand=0;
+    spi.write(data);
+    edp_chipSelect=1;
+}
+
+void EPD_SendData(unsigned char data) {
+    edp_chipSelect=0;
+    edp_dataCommand=1;
+    spi.write(data);
+    edp_chipSelect=1;
+}
+ 
+void EPD_Reset() {
+  edp_reset=0;
+  wait_ms(200);
+  edp_reset=1;
+  wait_ms(200);
+}
+ 
+void EPD_WaitUntilIdle() {
+  while(edp_busy == 1) {      //0: busy, 1: idle
+    wait_ms(100);
+  }      
+} 
+
+/**
+ *  @brief: private function to specify the memory area for data R/W
+ */
+static void EPD_SetMemoryArea(int x_start, int y_start, int x_end, int y_end) {
+  EPD_SendCommand(SET_RAM_X_ADDRESS_START_END_POSITION);
+  /* x point must be the multiple of 8 or the last 3 bits will be ignored */
+  EPD_SendData((x_start >> 3) & 0xFF);
+  EPD_SendData((x_end >> 3) & 0xFF);
+  EPD_SendCommand(SET_RAM_Y_ADDRESS_START_END_POSITION);
+  EPD_SendData(y_start & 0xFF);
+  EPD_SendData((y_start >> 8) & 0xFF);
+  EPD_SendData(y_end & 0xFF);
+  EPD_SendData((y_end >> 8) & 0xFF);
+}
+
+/**
+ *  @brief: private function to specify the start point for data R/W
+ */
+static void EPD_SetMemoryPointer(int x, int y) {
+  EPD_SendCommand(SET_RAM_X_ADDRESS_COUNTER);
+  /* x point must be the multiple of 8 or the last 3 bits will be ignored */
+  EPD_SendData((x >> 3) & 0xFF);
+  EPD_SendCommand(SET_RAM_Y_ADDRESS_COUNTER);
+  EPD_SendData(y & 0xFF);
+  EPD_SendData((y >> 8) & 0xFF);
+  EPD_WaitUntilIdle();
+}
+
+void EPD_SetLut(const unsigned char* lut) {
+  EPD_SendCommand(WRITE_LUT_REGISTER);
+  /* the length of look-up table is 30 bytes */
+  for (int i = 0; i < 30; i++) {
+    EPD_SendData(lut[i]);
+  } 
+}
+ 
+int EPD_Init() {
+  EPD_Reset();
+  EPD_SendCommand(DRIVER_OUTPUT_CONTROL);
+  EPD_SendData((EPD_HEIGHT - 1) & 0xFF);
+  EPD_SendData(((EPD_HEIGHT - 1) >> 8) & 0xFF);
+  EPD_SendData(0x00);                     // GD = 0; SM = 0; TB = 0;
+  EPD_SendCommand(BOOSTER_SOFT_START_CONTROL);
+  EPD_SendData(0xD7);
+  EPD_SendData(0xD6);
+  EPD_SendData(0x9D);
+  EPD_SendCommand(WRITE_VCOM_REGISTER);
+  EPD_SendData(0xA8);                     // VCOM 7C
+  EPD_SendCommand(SET_DUMMY_LINE_PERIOD);
+  EPD_SendData(0x1A);                     // 4 dummy lines per gate
+  EPD_SendCommand(SET_GATE_TIME);
+  EPD_SendData(0x08);                     // 2us per line
+  EPD_SendCommand(DATA_ENTRY_MODE_SETTING);
+  EPD_SendData(0x03);                     // X increment; Y increment
+  EPD_SetLut(lut_full_update);
+  //EPD_SetLut(lut_partial_update);
+  /* EPD hardware init end */
+  return 0;
+}
+
+/**
+ *  @brief: put an image buffer to the frame memory.
+ *          this won't update the display.
+ */
+void EPD_SetFrameMemory(
+  const unsigned char* image_buffer,
+  int x,
+  int y,
+  int image_width,
+  int image_height
+) {
+  int x_end;
+  int y_end;
+
+  if (
+    image_buffer == NULL ||
+    x < 0 || image_width < 0 ||
+    y < 0 || image_height < 0
+  ) {
+    return;
+  }
+  /* x point must be the multiple of 8 or the last 3 bits will be ignored */
+  x &= 0xF8;
+  image_width &= 0xF8;
+  if (x + image_width >= EPD_WIDTH) {
+    x_end = EPD_WIDTH - 1;
+  } else {
+    x_end = x + image_width - 1;
+  }
+  if (y + image_height >= EPD_HEIGHT) {
+    y_end = EPD_HEIGHT - 1;
+  } else {
+    y_end = y + image_height - 1;
+  }
+  EPD_SetMemoryArea(x, y, x_end, y_end);
+  EPD_SetMemoryPointer(x, y);
+  EPD_SendCommand(WRITE_RAM);
+  /* send the image data */
+  for (int j = 0; j < y_end - y + 1; j++) {
+    for (int i = 0; i < (x_end - x + 1) / 8; i++) {
+      EPD_SendData(image_buffer[i + j * (image_width / 8)]);
+    }
+  }
+}
+
+/**
+*  @brief: clear the frame memory with the specified color.
+*          this won't update the display.
+*/
+void EPD_ClearFrameMemory(unsigned char color) {
+  EPD_SetMemoryArea(0, 0, EPD_WIDTH - 1, EPD_HEIGHT - 1);
+  EPD_SetMemoryPointer(0, 0);
+  EPD_SendCommand(WRITE_RAM);
+  /* send the color data */
+  for (int i = 0; i < EPD_WIDTH / 8 * EPD_HEIGHT; i++) {
+    EPD_SendData(color);
+  }
+}
+
+/**
+*  @brief: update the display
+*          there are 2 memory areas embedded in the e-paper display
+*          but once this function is called,
+*          the the next action of SetFrameMemory or ClearFrame will 
+*          set the other memory area.
+*/
+void EPD_DisplayFrame() {
+  EPD_SendCommand(DISPLAY_UPDATE_CONTROL_2);
+  EPD_SendData(0xC4);
+  EPD_SendCommand(MASTER_ACTIVATION);
+  EPD_SendCommand(TERMINATE_FRAME_READ_WRITE);
+  EPD_WaitUntilIdle();
+}
+
+/**
+ *  @brief: After this command is transmitted, the chip would enter the 
+ *          deep-sleep mode to save power. 
+ *          The deep sleep mode would return to standby by hardware reset. 
+ *          You can use EPD_Init() to awaken
+ */
+void EPD_Sleep() {
+  EPD_SendCommand(DEEP_SLEEP_MODE);
+  EPD_WaitUntilIdle();
+}
+
+void setChar(char chr, int x, int y, unsigned char color){
+  unsigned char arr[8];
+  memcpy(arr, (unsigned char*)&(FONT8x8[chr - 0x1F][0]), 8);
+  
+  if(color==0){
+    for(int i=0;i<8;i++){
+        arr[i]=~arr[i];
+    }    
+  }
+  
+  EPD_SetFrameMemory(arr,x,y,8,8);
+}
+
+void setString(char *str, int len, int x, int y, unsigned char color){
+    for (int i=0;i<len;i++) {
+        if(str[i]=='\n' && i<len-1){y+=8;i++;x-=i*8;}
+        setChar(str[i], x+i*8, y, color);
+    }
+}
+ 
+int main() {
+    confSysClock(); 
+    spi.format(8,0);
+    spi.frequency(4000000);         
+    
+    EPD_Init();
+    
+    //EPD_ClearFrameMemory(BACKGROUND_WHITE);
+    //EPD_DisplayFrame();
+    setString("Alexander\nSemion",16,0,0,0);
+    EPD_DisplayFrame();
+    /*unsigned char arr[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00};
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['S' - 0x1F][0]),0,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['P' - 0x1F][0]),8,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['I' - 0x1F][0]),16,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['N' - 0x1F][0]),24,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['7' - 0x1F][0]),32,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['I' - 0x1F][0]),40,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['O' - 0x1F][0]),48,0,8,8);
+    EPD_SetFrameMemory((unsigned char*)&(FONT8x8['N' - 0x1F][0]),56,0,8,8);
+    EPD_DisplayFrame();*/
+    /*
+    while(1){ 
+        myled1 = 1;
+        wait_ms(1000);
+        myled1 = 0;
+        wait_ms(1000);
+    }*/
+}
\ No newline at end of file

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed-STM32F103C8T6.lib	Fri Dec 29 22:35:18 2017 +0000
@@ -0,0 +1,1 @@
+http://os.mbed.com/users/hudakz/code/mbed-STM32F103C8T6/#727468adfd1d

--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Fri Dec 29 22:35:18 2017 +0000
@@ -0,0 +1,1 @@
+http://mbed.org/users/mbed_official/code/mbed/builds/e7ca05fa8600
\ No newline at end of file