Shinichiro Nakamura
SG12864A
Dependents: SG12864A_TestProgram
Diff: SG12864A.cpp
- Revision:
- 5:4d86043f7942
- Parent:
- 4:200d1ea4e76e
--- a/SG12864A.cpp Tue Aug 10 12:36:05 2010 +0000
+++ b/SG12864A.cpp Tue Aug 10 12:52:53 2010 +0000
@@ -1,528 +1,523 @@
-/**
- * SG12864A Graphics LCD module driver class (Version 0.0.1)
- *
- * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
- * http://shinta.main.jp/
- *
- * See also ...
- * http://mbed.org/users/shintamainjp/notebook/sg12864asunlike-display-graphics-lcd-driver/
- */
-
-#include "SG12864A.h"
-
-#define setPixel(x,y) buffer[((COLUMNS * 2)* ((y) / 8)) + (x)] |= (1 << ((y) % 8))
-#define unsetPixel(x,y) buffer[((COLUMNS * 2)* ((y) / 8)) + (x)] &= ~(1 << ((y) % 8))
-#define swap(a,b) {int c=a;a=b;b=c;}
-
-const uint8_t SG12864A::font5x7_data[] = {
- 0x00, 0x00, 0x00, 0x00, 0x00, // (white space)
- 0x00, 0x00, 0x5F, 0x00, 0x00, // !
- 0x00, 0x07, 0x00, 0x07, 0x00, // "
- 0x14, 0x7F, 0x14, 0x7F, 0x14, // #
- 0x24, 0x2A, 0x7F, 0x2A, 0x12, // $
- 0x23, 0x13, 0x08, 0x64, 0x62, // %
- 0x36, 0x49, 0x55, 0x22, 0x50, // &
- 0x00, 0x05, 0x03, 0x00, 0x00, // '
- 0x00, 0x1C, 0x22, 0x41, 0x00, // (
- 0x00, 0x41, 0x22, 0x1C, 0x00, // )
- 0x08, 0x2A, 0x1C, 0x2A, 0x08, // *
- 0x08, 0x08, 0x3E, 0x08, 0x08, // +
- 0x00, 0x50, 0x30, 0x00, 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, // ;
- 0x00, 0x08, 0x14, 0x22, 0x41, // <
- 0x14, 0x14, 0x14, 0x14, 0x14, // =
- 0x41, 0x22, 0x14, 0x08, 0x00, // >
- 0x02, 0x01, 0x51, 0x09, 0x06, // ?
- 0x32, 0x49, 0x79, 0x41, 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, 0x01, 0x01, // F
- 0x3E, 0x41, 0x41, 0x51, 0x32, // 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, 0x04, 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
- 0x7F, 0x20, 0x18, 0x20, 0x7F, // W
- 0x63, 0x14, 0x08, 0x14, 0x63, // X
- 0x03, 0x04, 0x78, 0x04, 0x03, // Y
- 0x61, 0x51, 0x49, 0x45, 0x43, // Z
- 0x00, 0x00, 0x7F, 0x41, 0x41, // [
- 0x02, 0x04, 0x08, 0x10, 0x20, // /
- 0x41, 0x41, 0x7F, 0x00, 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
- 0x08, 0x14, 0x54, 0x54, 0x3C, // g
- 0x7F, 0x08, 0x04, 0x04, 0x78, // h
- 0x00, 0x44, 0x7D, 0x40, 0x00, // i
- 0x20, 0x40, 0x44, 0x3D, 0x00, // j
- 0x00, 0x7F, 0x10, 0x28, 0x44, // 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
- 0x00, 0x08, 0x36, 0x41, 0x00, // {
- 0x00, 0x00, 0x7F, 0x00, 0x00, // |
- 0x00, 0x41, 0x36, 0x08, 0x00, // }
- 0x08, 0x08, 0x2A, 0x1C, 0x08, // ->
- 0x08, 0x1C, 0x2A, 0x08, 0x08 // <-
-};
-
-SG12864A::SG12864A(PinName di,
- PinName rw,
- PinName en,
- PinName db0,
- PinName db1,
- PinName db2,
- PinName db3,
- PinName db4,
- PinName db5,
- PinName db6,
- PinName db7,
- PinName cs1,
- PinName cs2,
- PinName res)
- :
- ioDI(di),
- ioRW(rw),
- ioEN(en),
- ioDB(db0, db1, db2, db3, db4, db5, db6, db7),
- ioCS1(cs1),
- ioCS2(cs2),
- ioRES(res) {
- bufferClear();
- setDirectionToWrite();
-}
-
-SG12864A::~SG12864A() {
-}
-
-void SG12864A::bufferPush(void) {
- for (uint8_t i = 0; i < PAGES; i++) {
- // CS1
- setPageAddress(SG12864A::CS1, i);
- setColumnAddress(SG12864A::CS1, 0);
- for (uint8_t j = 0; j < COLUMNS; j++) {
- writeData(CS1, buffer[0 + ((COLUMNS * 2) * i) + j]);
- }
- // CS2
- setPageAddress(SG12864A::CS2, i);
- setColumnAddress(SG12864A::CS2, 0);
- for (uint8_t j = 0; j < COLUMNS; j++) {
- writeData(CS2, buffer[COLUMNS + ((COLUMNS * 2) * i) + j]);
- }
- }
-}
-
-void SG12864A::bufferPull(void) {
-}
-
-void SG12864A::bufferClear(bool reverse) {
- for (int i = 0; i < sizeof(buffer); i++) {
- if (reverse) {
- buffer[i] = 0xFF;
- } else {
- buffer[i] = 0x00;
- }
- }
-}
-
-void SG12864A::bufferDrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) {
- /*
- * Bresenham's line algorithm
- */
- bool steep = abs(y2 - y1) > abs(x2 - x1);
- if (steep) {
- swap(x1, y1);
- swap(x2, y2);
- }
- if (x1 > x2) {
- swap(x1, x2);
- swap(y1, y2);
- }
- int deltax = x2 - x1;
- int deltay = abs(y2 - y1);
- int error = deltax / 2;
- int ystep;
- int y = y1;
- if (y1 < y2) {
- ystep = 1;
- } else {
- ystep = -1;
- }
- for (int x = x1; x <= x2; x++) {
- if (steep) {
- if (reverse) {
- unsetPixel(y, x);
- } else {
- setPixel(y, x);
- }
- } else {
- if (reverse) {
- unsetPixel(x, y);
- } else {
- setPixel(x, y);
- }
- }
- error = error - deltay;
- if (error < 0) {
- y = y + ystep;
- error = error + deltax;
- }
- }
-}
-
-void SG12864A::bufferDrawBox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) {
- for (int x = x1; x <= x2; x++) {
- if (reverse) {
- unsetPixel(x, y1);
- unsetPixel(x, y2);
- } else {
- setPixel(x, y1);
- setPixel(x, y2);
- }
- }
- for (int y = y1; y <= y2; y++) {
- if (reverse) {
- unsetPixel(x1, y);
- unsetPixel(x2, y);
- } else {
- setPixel(x1, y);
- setPixel(x2, y);
- }
- }
-}
-
-void SG12864A::bufferFillBox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) {
- for (int x = x1; x <= x2; x++) {
- for (int y = y1; y <= y2; y++) {
- if (reverse) {
- unsetPixel(x, y);
- } else {
- setPixel(x, y);
- }
- }
- }
-}
-
-void SG12864A::bufferDrawString(uint8_t x, uint8_t y, char * str, bool reverse) {
- char *p = str;
- int cnt = 0;
- while (*p) {
- bufferDrawChar(x + (FONT_X * cnt), y, *p, reverse);
- p++;
- cnt++;
- }
-}
-
-void SG12864A::bufferDrawChar(uint8_t x, uint8_t y, char c, bool reverse) {
- if ((FONT_MIN_CODE <= c) &&(c <= FONT_MAX_CODE)) {
- int aofs = (c - FONT_MIN_CODE) * FONT_X;
- for (int i = 0; i < FONT_X; i++) {
- uint8_t pat = font5x7_data[aofs + i];
- for (int j = 0; j < FONT_Y; j++) {
- if (pat & (1 << j)) {
- if (reverse) {
- unsetPixel(x + i, y + j);
- } else {
- setPixel(x + i, y + j);
- }
- } else {
- if (reverse) {
- setPixel(x + i, y + j);
- } else {
- unsetPixel(x + i, y + j);
- }
- }
- }
- }
- } else {
- for (int i = 0; i < FONT_X; i++) {
- uint8_t pat = (i % 2) ? 0x55 : 0xAA;
- for (int j = 0; j < FONT_Y; j++) {
- if (pat & (1 << j)) {
- if (reverse) {
- unsetPixel(x + i, y + j);
- } else {
- setPixel(x + i, y + j);
- }
- } else {
- if (reverse) {
- setPixel(x + i, y + j);
- } else {
- unsetPixel(x + i, y + j);
- }
- }
- }
- }
- }
-}
-
-void SG12864A::bufferDrawCheckbox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool state, bool reverse) {
- bufferDrawBox(x1, y1, x2, y2, reverse);
- if (state) {
- bufferDrawLine(x1, y1, x2, y2, reverse);
- bufferDrawLine(x1, y2, x2, y1, reverse);
- }
-}
-
-void SG12864A::bufferDrawProgressbar(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, int min, int max, int value, bool horizontal, bool reverse) {
- bufferDrawBox(x1, y1, x2, y2, reverse);
- if ((value < min) || (max < value)) {
- return;
- }
- int tmp_max = max - min;
- int tmp_val = value - min;
- if (horizontal) {
- int pix = ((y2 - y1) * tmp_val) / tmp_max;
- bufferFillBox(x1 + 1, y1 + 1, x1 - 1, y2 + pix - 1, reverse);
- } else {
- int pix = ((x2 - x1) * tmp_val) / tmp_max;
- bufferFillBox(x1 + 1, y1 + 1, x1 + pix - 1, y2 - 1, reverse);
- }
-}
-
-/**
- * High Level Interface.
- *
- * Reset display module.
- */
-void SG12864A::reset(void) {
- reset(true);
- wait_ms(200);
- reset(false);
- wait_ms(200);
-
- setDisplayOnOff(SG12864A::CS1, true);
- setDisplayOnOff(SG12864A::CS2, true);
- setDisplayStartLine(SG12864A::CS1, 0);
- setDisplayStartLine(SG12864A::CS2, 0);
- setPageAddress(SG12864A::CS1, 0);
- setPageAddress(SG12864A::CS2, 0);
- setColumnAddress(SG12864A::CS1, 0);
- setColumnAddress(SG12864A::CS2, 0);
-}
-
-/**
- * High Level Interface.
- *
- * Clear display module.
- */
-void SG12864A::clear(void) {
- for (uint8_t page = 0; page < PAGES; page++) {
- for (uint8_t column = 0; column < COLUMNS; column++) {
- // CS1
- setPageAddress(SG12864A::CS1, page);
- setColumnAddress(SG12864A::CS1, column);
- writeData(CS1, 0x00);
- // CS2
- setPageAddress(SG12864A::CS2, page);
- setColumnAddress(SG12864A::CS2, column);
- writeData(CS2, 0x00);
- }
- }
- // CS1
- setPageAddress(SG12864A::CS1, 0);
- setColumnAddress(SG12864A::CS1, 0);
- writeData(CS1, 0x00);
- // CS2
- setPageAddress(SG12864A::CS2, 0);
- setColumnAddress(SG12864A::CS2, 0);
- writeData(CS2, 0x00);
-}
-
-/**
- * Middle Level Interface.
- *
- * Set display on/off.
- *
- * @param t Target (CS1, CS2).
- * @param on ON/OFF (true, false).
- */
-void SG12864A::setDisplayOnOff(Target t, bool on) {
- setDirectionToWrite();
- uint8_t c = 0x3e | (on ? 0x01 : 0x00);
- write(t, SG12864A::Instruction, c);
- wait_us(1);
-}
-
-/**
- * Middle Level Interface.
- *
- * Set display start line.
- *
- * @param t Target (CS1, CS2).
- * @param addr Display start line (0-63).
- */
-void SG12864A::setDisplayStartLine(Target t, uint8_t addr) {
- setDirectionToWrite();
- uint8_t c = 0xc0 | (addr & 0x3f);
- write(t, SG12864A::Instruction, c);
- wait_us(1);
-}
-
-/**
- * Middle Level Interface.
- *
- * Set page address.
- *
- * @param t Target (CS1, CS2).
- * @param addr Page address(0-7).
- */
-void SG12864A::setPageAddress(Target t, uint8_t addr) {
- setDirectionToWrite();
- uint8_t c = 0xb8 | (addr & 0x07);
- write(t, SG12864A::Instruction, c);
- wait_us(1);
-}
-
-/**
- * Middle Level Interface.
- *
- * Set column address.
- *
- * @param t Target. (CS1, CS2)
- * @param addr Column address (0-63).
- */
-void SG12864A::setColumnAddress(Target t, uint8_t addr) {
- setDirectionToWrite();
- uint8_t c = 0x40 | (addr & 0x3f);
- write(t, SG12864A::Instruction, c);
- wait_us(1);
-}
-
-/**
- * Middle Level Interface.
- */
-void SG12864A::readStatus(Target t, uint8_t *c) {
- setDirectionToRead();
- read(t, SG12864A::Instruction, c);
- wait_us(1);
-}
-
-/**
- * Middle Level Interface.
- */
-void SG12864A::writeData(Target t, uint8_t c) {
- setDirectionToWrite();
- write(t, SG12864A::Data, c);
- wait_us(1);
-}
-
-/**
- * Middle Level Interface.
- */
-void SG12864A::readData(Target t, uint8_t *c) {
- setDirectionToRead();
- read(t, SG12864A::Data, c);
- wait_us(1);
-}
-
-/**
- * Low Level Interface.
- */
-void SG12864A::setDirectionToRead() {
- ioDB.input();
- ioRW = 1;
-}
-
-/**
- * Low Level Interface.
- */
-void SG12864A::setDirectionToWrite() {
- ioDB.output();
- ioRW = 0;
-}
-
-/**
- * Low Level Interface.
- */
-void SG12864A::write(Target t, Mode m, uint8_t c) {
- switch (t) {
- case CS1:
- ioCS1 = 1;
- ioCS2 = 0;
- break;
- case CS2:
- ioCS1 = 0;
- ioCS2 = 1;
- break;
- }
- switch (m) {
- case Data:
- ioDI = 1;
- break;
- case Instruction:
- ioDI = 0;
- break;
- }
- ioDB = c;
- wait_us(1);
- ioEN = 1;
- wait_us(1);
- ioEN = 0;
- wait_us(5);
-}
-
-/**
- * Low Level Interface.
- */
-void SG12864A::read(Target t, Mode m, uint8_t *c) {
- // TODO
-}
-
-/**
- * Low Level Interface.
- */
-void SG12864A::reset(bool b) {
- if (b) {
- ioRES = 0;
- } else {
- ioRES = 1;
- }
-}
+/**
+ * SG12864A Graphics LCD module driver class (Version 0.0.1)
+ *
+ * Copyright (C) 2010 Shinichiro Nakamura (CuBeatSystems)
+ * http://shinta.main.jp/
+ *
+ * See also ...
+ * http://mbed.org/users/shintamainjp/notebook/sg12864asunlike-display-graphics-lcd-driver/
+ */
+
+#include "SG12864A.h"
+
+#define setPixel(x,y) buffer[((COLUMNS * 2)* ((y) / 8)) + (x)] |= (1 << ((y) % 8))
+#define unsetPixel(x,y) buffer[((COLUMNS * 2)* ((y) / 8)) + (x)] &= ~(1 << ((y) % 8))
+#define swap(a,b) {int c=a;a=b;b=c;}
+
+const uint8_t SG12864A::font5x7_data[] = {
+ 0x00, 0x00, 0x00, 0x00, 0x00, // (white space)
+ 0x00, 0x00, 0x5F, 0x00, 0x00, // !
+ 0x00, 0x07, 0x00, 0x07, 0x00, // "
+ 0x14, 0x7F, 0x14, 0x7F, 0x14, // #
+ 0x24, 0x2A, 0x7F, 0x2A, 0x12, // $
+ 0x23, 0x13, 0x08, 0x64, 0x62, // %
+ 0x36, 0x49, 0x55, 0x22, 0x50, // &
+ 0x00, 0x05, 0x03, 0x00, 0x00, // '
+ 0x00, 0x1C, 0x22, 0x41, 0x00, // (
+ 0x00, 0x41, 0x22, 0x1C, 0x00, // )
+ 0x08, 0x2A, 0x1C, 0x2A, 0x08, // *
+ 0x08, 0x08, 0x3E, 0x08, 0x08, // +
+ 0x00, 0x50, 0x30, 0x00, 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, // ;
+ 0x00, 0x08, 0x14, 0x22, 0x41, // <
+ 0x14, 0x14, 0x14, 0x14, 0x14, // =
+ 0x41, 0x22, 0x14, 0x08, 0x00, // >
+ 0x02, 0x01, 0x51, 0x09, 0x06, // ?
+ 0x32, 0x49, 0x79, 0x41, 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, 0x01, 0x01, // F
+ 0x3E, 0x41, 0x41, 0x51, 0x32, // 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, 0x04, 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
+ 0x7F, 0x20, 0x18, 0x20, 0x7F, // W
+ 0x63, 0x14, 0x08, 0x14, 0x63, // X
+ 0x03, 0x04, 0x78, 0x04, 0x03, // Y
+ 0x61, 0x51, 0x49, 0x45, 0x43, // Z
+ 0x00, 0x00, 0x7F, 0x41, 0x41, // [
+ 0x02, 0x04, 0x08, 0x10, 0x20, // /
+ 0x41, 0x41, 0x7F, 0x00, 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
+ 0x08, 0x14, 0x54, 0x54, 0x3C, // g
+ 0x7F, 0x08, 0x04, 0x04, 0x78, // h
+ 0x00, 0x44, 0x7D, 0x40, 0x00, // i
+ 0x20, 0x40, 0x44, 0x3D, 0x00, // j
+ 0x00, 0x7F, 0x10, 0x28, 0x44, // 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
+ 0x00, 0x08, 0x36, 0x41, 0x00, // {
+ 0x00, 0x00, 0x7F, 0x00, 0x00, // |
+ 0x00, 0x41, 0x36, 0x08, 0x00, // }
+ 0x08, 0x08, 0x2A, 0x1C, 0x08, // ->
+ 0x08, 0x1C, 0x2A, 0x08, 0x08 // <-
+};
+
+SG12864A::SG12864A(PinName di,
+ PinName rw,
+ PinName en,
+ PinName db0,
+ PinName db1,
+ PinName db2,
+ PinName db3,
+ PinName db4,
+ PinName db5,
+ PinName db6,
+ PinName db7,
+ PinName cs1,
+ PinName cs2,
+ PinName res)
+ :
+ ioDI(di),
+ ioRW(rw),
+ ioEN(en),
+ ioDB(db0, db1, db2, db3, db4, db5, db6, db7),
+ ioCS1(cs1),
+ ioCS2(cs2),
+ ioRES(res) {
+ bufferClear();
+ setDirectionToWrite();
+}
+
+SG12864A::~SG12864A() {
+}
+
+void SG12864A::bufferPush(void) {
+ for (uint8_t i = 0; i < PAGES; i++) {
+ // CS1
+ setPageAddress(SG12864A::CS1, i);
+ setColumnAddress(SG12864A::CS1, 0);
+ for (uint8_t j = 0; j < COLUMNS; j++) {
+ writeData(CS1, buffer[0 + ((COLUMNS * 2) * i) + j]);
+ }
+ // CS2
+ setPageAddress(SG12864A::CS2, i);
+ setColumnAddress(SG12864A::CS2, 0);
+ for (uint8_t j = 0; j < COLUMNS; j++) {
+ writeData(CS2, buffer[COLUMNS + ((COLUMNS * 2) * i) + j]);
+ }
+ }
+}
+
+void SG12864A::bufferPull(void) {
+}
+
+void SG12864A::bufferClear(bool reverse) {
+ for (int i = 0; i < sizeof(buffer); i++) {
+ if (reverse) {
+ buffer[i] = 0xFF;
+ } else {
+ buffer[i] = 0x00;
+ }
+ }
+}
+
+void SG12864A::bufferDrawLine(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) {
+ /*
+ * Bresenham's line algorithm
+ */
+ bool steep = abs(y2 - y1) > abs(x2 - x1);
+ if (steep) {
+ swap(x1, y1);
+ swap(x2, y2);
+ }
+ if (x1 > x2) {
+ swap(x1, x2);
+ swap(y1, y2);
+ }
+ int deltax = x2 - x1;
+ int deltay = abs(y2 - y1);
+ int error = deltax / 2;
+ int ystep;
+ int y = y1;
+ if (y1 < y2) {
+ ystep = 1;
+ } else {
+ ystep = -1;
+ }
+ for (int x = x1; x <= x2; x++) {
+ if (steep) {
+ if (reverse) {
+ unsetPixel(y, x);
+ } else {
+ setPixel(y, x);
+ }
+ } else {
+ if (reverse) {
+ unsetPixel(x, y);
+ } else {
+ setPixel(x, y);
+ }
+ }
+ error = error - deltay;
+ if (error < 0) {
+ y = y + ystep;
+ error = error + deltax;
+ }
+ }
+}
+
+void SG12864A::bufferDrawBox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) {
+ for (int x = x1; x <= x2; x++) {
+ if (reverse) {
+ unsetPixel(x, y1);
+ unsetPixel(x, y2);
+ } else {
+ setPixel(x, y1);
+ setPixel(x, y2);
+ }
+ }
+ for (int y = y1; y <= y2; y++) {
+ if (reverse) {
+ unsetPixel(x1, y);
+ unsetPixel(x2, y);
+ } else {
+ setPixel(x1, y);
+ setPixel(x2, y);
+ }
+ }
+}
+
+void SG12864A::bufferFillBox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool reverse) {
+ for (int x = x1; x <= x2; x++) {
+ for (int y = y1; y <= y2; y++) {
+ if (reverse) {
+ unsetPixel(x, y);
+ } else {
+ setPixel(x, y);
+ }
+ }
+ }
+}
+
+void SG12864A::bufferDrawString(uint8_t x, uint8_t y, char * str, bool reverse) {
+ char *p = str;
+ int cnt = 0;
+ while (*p) {
+ bufferDrawChar(x + (FONT_X * cnt), y, *p, reverse);
+ p++;
+ cnt++;
+ }
+}
+
+void SG12864A::bufferDrawChar(uint8_t x, uint8_t y, char c, bool reverse) {
+ if ((FONT_MIN_CODE <= c) &&(c <= FONT_MAX_CODE)) {
+ int aofs = (c - FONT_MIN_CODE) * FONT_X;
+ for (int i = 0; i < FONT_X; i++) {
+ uint8_t pat = font5x7_data[aofs + i];
+ for (int j = 0; j < FONT_Y; j++) {
+ if (pat & (1 << j)) {
+ if (reverse) {
+ unsetPixel(x + i, y + j);
+ } else {
+ setPixel(x + i, y + j);
+ }
+ } else {
+ if (reverse) {
+ setPixel(x + i, y + j);
+ } else {
+ unsetPixel(x + i, y + j);
+ }
+ }
+ }
+ }
+ } else {
+ for (int i = 0; i < FONT_X; i++) {
+ uint8_t pat = (i % 2) ? 0x55 : 0xAA;
+ for (int j = 0; j < FONT_Y; j++) {
+ if (pat & (1 << j)) {
+ if (reverse) {
+ unsetPixel(x + i, y + j);
+ } else {
+ setPixel(x + i, y + j);
+ }
+ } else {
+ if (reverse) {
+ setPixel(x + i, y + j);
+ } else {
+ unsetPixel(x + i, y + j);
+ }
+ }
+ }
+ }
+ }
+}
+
+void SG12864A::bufferDrawCheckbox(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, bool state, bool reverse) {
+ bufferDrawBox(x1, y1, x2, y2, reverse);
+ if (state) {
+ bufferDrawLine(x1, y1, x2, y2, reverse);
+ bufferDrawLine(x1, y2, x2, y1, reverse);
+ }
+}
+
+void SG12864A::bufferDrawProgressbar(uint16_t x1, uint16_t y1, uint16_t x2, uint16_t y2, int min, int max, int value, bool reverse) {
+ bufferDrawBox(x1, y1, x2, y2, reverse);
+ if ((value < min) || (max < value)) {
+ return;
+ }
+ int tmp_max = max - min;
+ int tmp_val = value - min;
+ int pix = ((x2 - x1) * tmp_val) / tmp_max;
+ bufferFillBox(x1 + 1, y1 + 1, x1 + pix - 1, y2 - 1, reverse);
+}
+
+/**
+ * High Level Interface.
+ *
+ * Reset display module.
+ */
+void SG12864A::reset(void) {
+ reset(true);
+ wait_ms(200);
+ reset(false);
+ wait_ms(200);
+
+ setDisplayOnOff(SG12864A::CS1, true);
+ setDisplayOnOff(SG12864A::CS2, true);
+ setDisplayStartLine(SG12864A::CS1, 0);
+ setDisplayStartLine(SG12864A::CS2, 0);
+ setPageAddress(SG12864A::CS1, 0);
+ setPageAddress(SG12864A::CS2, 0);
+ setColumnAddress(SG12864A::CS1, 0);
+ setColumnAddress(SG12864A::CS2, 0);
+}
+
+/**
+ * High Level Interface.
+ *
+ * Clear display module.
+ */
+void SG12864A::clear(void) {
+ for (uint8_t page = 0; page < PAGES; page++) {
+ for (uint8_t column = 0; column < COLUMNS; column++) {
+ // CS1
+ setPageAddress(SG12864A::CS1, page);
+ setColumnAddress(SG12864A::CS1, column);
+ writeData(CS1, 0x00);
+ // CS2
+ setPageAddress(SG12864A::CS2, page);
+ setColumnAddress(SG12864A::CS2, column);
+ writeData(CS2, 0x00);
+ }
+ }
+ // CS1
+ setPageAddress(SG12864A::CS1, 0);
+ setColumnAddress(SG12864A::CS1, 0);
+ writeData(CS1, 0x00);
+ // CS2
+ setPageAddress(SG12864A::CS2, 0);
+ setColumnAddress(SG12864A::CS2, 0);
+ writeData(CS2, 0x00);
+}
+
+/**
+ * Middle Level Interface.
+ *
+ * Set display on/off.
+ *
+ * @param t Target (CS1, CS2).
+ * @param on ON/OFF (true, false).
+ */
+void SG12864A::setDisplayOnOff(Target t, bool on) {
+ setDirectionToWrite();
+ uint8_t c = 0x3e | (on ? 0x01 : 0x00);
+ write(t, SG12864A::Instruction, c);
+ wait_us(1);
+}
+
+/**
+ * Middle Level Interface.
+ *
+ * Set display start line.
+ *
+ * @param t Target (CS1, CS2).
+ * @param addr Display start line (0-63).
+ */
+void SG12864A::setDisplayStartLine(Target t, uint8_t addr) {
+ setDirectionToWrite();
+ uint8_t c = 0xc0 | (addr & 0x3f);
+ write(t, SG12864A::Instruction, c);
+ wait_us(1);
+}
+
+/**
+ * Middle Level Interface.
+ *
+ * Set page address.
+ *
+ * @param t Target (CS1, CS2).
+ * @param addr Page address(0-7).
+ */
+void SG12864A::setPageAddress(Target t, uint8_t addr) {
+ setDirectionToWrite();
+ uint8_t c = 0xb8 | (addr & 0x07);
+ write(t, SG12864A::Instruction, c);
+ wait_us(1);
+}
+
+/**
+ * Middle Level Interface.
+ *
+ * Set column address.
+ *
+ * @param t Target. (CS1, CS2)
+ * @param addr Column address (0-63).
+ */
+void SG12864A::setColumnAddress(Target t, uint8_t addr) {
+ setDirectionToWrite();
+ uint8_t c = 0x40 | (addr & 0x3f);
+ write(t, SG12864A::Instruction, c);
+ wait_us(1);
+}
+
+/**
+ * Middle Level Interface.
+ */
+void SG12864A::readStatus(Target t, uint8_t *c) {
+ setDirectionToRead();
+ read(t, SG12864A::Instruction, c);
+ wait_us(1);
+}
+
+/**
+ * Middle Level Interface.
+ */
+void SG12864A::writeData(Target t, uint8_t c) {
+ setDirectionToWrite();
+ write(t, SG12864A::Data, c);
+ wait_us(1);
+}
+
+/**
+ * Middle Level Interface.
+ */
+void SG12864A::readData(Target t, uint8_t *c) {
+ setDirectionToRead();
+ read(t, SG12864A::Data, c);
+ wait_us(1);
+}
+
+/**
+ * Low Level Interface.
+ */
+void SG12864A::setDirectionToRead() {
+ ioDB.input();
+ ioRW = 1;
+}
+
+/**
+ * Low Level Interface.
+ */
+void SG12864A::setDirectionToWrite() {
+ ioDB.output();
+ ioRW = 0;
+}
+
+/**
+ * Low Level Interface.
+ */
+void SG12864A::write(Target t, Mode m, uint8_t c) {
+ switch (t) {
+ case CS1:
+ ioCS1 = 1;
+ ioCS2 = 0;
+ break;
+ case CS2:
+ ioCS1 = 0;
+ ioCS2 = 1;
+ break;
+ }
+ switch (m) {
+ case Data:
+ ioDI = 1;
+ break;
+ case Instruction:
+ ioDI = 0;
+ break;
+ }
+ ioDB = c;
+ wait_us(1);
+ ioEN = 1;
+ wait_us(1);
+ ioEN = 0;
+ wait_us(5);
+}
+
+/**
+ * Low Level Interface.
+ */
+void SG12864A::read(Target t, Mode m, uint8_t *c) {
+ // TODO
+}
+
+/**
+ * Low Level Interface.
+ */
+void SG12864A::reset(bool b) {
+ if (b) {
+ ioRES = 0;
+ } else {
+ ioRES = 1;
+ }
+}