From 2b1e91b1ccd6130a303a17463c7fe75cf0859273 Mon Sep 17 00:00:00 2001
From: Stanley Huang <stanleyhuangyc@gmail.com>
Date: Fri, 7 Mar 2014 00:05:10 +0800
Subject: Add NanoLogger
---
nanologger/SSD1306.cpp | 273 +++++++++++++++++++++++++++++++++++++++++++++++++
1 file changed, 273 insertions(+)
create mode 100644 nanologger/SSD1306.cpp
(limited to 'nanologger/SSD1306.cpp')
diff --git a/nanologger/SSD1306.cpp b/nanologger/SSD1306.cpp
new file mode 100644
index 0000000..7f7b8e8
--- /dev/null
+++ b/nanologger/SSD1306.cpp
@@ -0,0 +1,273 @@
+#include <avr/pgmspace.h>
+#include <util/delay.h>
+#include <stdlib.h>
+#include <Wire.h>
+#include "SSD1306.h"
+
+SSD1306::SSD1306(int8_t SCLK, int8_t DC, int8_t RST, int8_t CS) {
+ cs = CS;
+ rst = RST;
+ dc = DC;
+ sclk = SCLK;
+}
+
+// initializer for I2C - we only indicate the reset pin!
+ SSD1306::SSD1306(int8_t reset) {
+ sclk = dc = cs = -1;
+ rst = reset;
+}
+
+
+void SSD1306::begin(uint8_t vccstate, uint8_t i2caddr) {
+ _i2caddr = i2caddr;
+
+
+ // set pin directions
+ // I2C Init
+ Wire.begin(); // Is this the right place for this?
+
+ // Setup reset pin direction (used by both SPI and I2C)
+ pinMode(rst, OUTPUT);
+ digitalWrite(rst, HIGH);
+ // VDD (3.3V) goes high at start, lets just chill for a ms
+ delay(1);
+ // bring reset low
+ digitalWrite(rst, LOW);
+ // wait 10ms
+ delay(10);
+ // bring out of reset
+ digitalWrite(rst, HIGH);
+ // turn on VCC (9V?)
+ #if defined SSD1306_128_32
+ // Init sequence for 128x32 OLED module
+ ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
+ ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
+ ssd1306_command(0x80); // the suggested ratio 0x80
+ ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
+ ssd1306_command(0x1F);
+ ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
+ ssd1306_command(0x0); // no offset
+ ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
+ ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
+ if (vccstate == SSD1306_EXTERNALVCC)
+ { ssd1306_command(0x10); }
+ else
+ { ssd1306_command(0x14); }
+ ssd1306_command(SSD1306_MEMORYMODE); // 0x20
+ ssd1306_command(0x00); // 0x0 act like ks0108
+ ssd1306_command(SSD1306_SEGREMAP | 0x1);
+ ssd1306_command(SSD1306_COMSCANDEC);
+ ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
+ ssd1306_command(0x02);
+ ssd1306_command(SSD1306_SETCONTRAST); // 0x81
+ ssd1306_command(0x8F);
+ ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
+ if (vccstate == SSD1306_EXTERNALVCC)
+ { ssd1306_command(0x22); }
+ else
+ { ssd1306_command(0xF1); }
+ ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
+ ssd1306_command(0x40);
+ ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
+ ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
+ #endif
+
+ #if defined SSD1306_128_64
+ // Init sequence for 128x64 OLED module
+ ssd1306_command(SSD1306_DISPLAYOFF); // 0xAE
+ ssd1306_command(SSD1306_SETDISPLAYCLOCKDIV); // 0xD5
+ ssd1306_command(0x80); // the suggested ratio 0x80
+ ssd1306_command(SSD1306_SETMULTIPLEX); // 0xA8
+ ssd1306_command(0x3F);
+ ssd1306_command(SSD1306_SETDISPLAYOFFSET); // 0xD3
+ ssd1306_command(0x0); // no offset
+ ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
+ ssd1306_command(SSD1306_CHARGEPUMP); // 0x8D
+ if (vccstate == SSD1306_EXTERNALVCC)
+ { ssd1306_command(0x10); }
+ else
+ { ssd1306_command(0x14); }
+ ssd1306_command(SSD1306_MEMORYMODE); // 0x20
+ ssd1306_command(0x00); // 0x0 act like ks0108
+ ssd1306_command(SSD1306_SEGREMAP | 0x1);
+ ssd1306_command(SSD1306_COMSCANDEC);
+ ssd1306_command(SSD1306_SETCOMPINS); // 0xDA
+ ssd1306_command(0x12);
+ ssd1306_command(SSD1306_SETCONTRAST); // 0x81
+ if (vccstate == SSD1306_EXTERNALVCC)
+ { ssd1306_command(0x9F); }
+ else
+ { ssd1306_command(0xCF); }
+ ssd1306_command(SSD1306_SETPRECHARGE); // 0xd9
+ if (vccstate == SSD1306_EXTERNALVCC)
+ { ssd1306_command(0x22); }
+ else
+ { ssd1306_command(0xF1); }
+ ssd1306_command(SSD1306_SETVCOMDETECT); // 0xDB
+ ssd1306_command(0x40);
+ ssd1306_command(SSD1306_DISPLAYALLON_RESUME); // 0xA4
+ ssd1306_command(SSD1306_NORMALDISPLAY); // 0xA6
+ #endif
+
+ ssd1306_command(SSD1306_DISPLAYON);//--turn on oled panel
+
+ // clear screen
+ delay(5);
+
+ ssd1306_command(SSD1306_SETLOWCOLUMN | 0x0); // low col = 0
+ ssd1306_command(SSD1306_SETHIGHCOLUMN | 0x0); // hi col = 0
+ ssd1306_command(SSD1306_SETSTARTLINE | 0x0); // line #0
+
+ for (byte i = 0; i < SSD1306_LCDHEIGHT / 8; i++) {
+ // send a bunch of data in one xmission
+ ssd1306_command(0xB0 + i);//set page address
+ ssd1306_command(0);//set lower column address
+ ssd1306_command(0x10);//set higher column address
+
+ for(byte j = 0; j < 8; j++){
+ Wire.beginTransmission(_i2caddr);
+ Wire.write(0x40);
+ for (byte k = 0; k < SSD1306_LCDWIDTH / 8; k++) {
+ Wire.write(0);
+ }
+ Wire.endTransmission();
+ }
+ }
+}
+
+
+void SSD1306::invertDisplay(uint8_t i) {
+ if (i) {
+ ssd1306_command(SSD1306_INVERTDISPLAY);
+ } else {
+ ssd1306_command(SSD1306_NORMALDISPLAY);
+ }
+}
+
+void SSD1306::ssd1306_command(uint8_t c) {
+ // I2C
+ uint8_t control = 0x00; // Co = 0, D/C = 0
+ Wire.beginTransmission(_i2caddr);
+ Wire.write(control);
+ Wire.write(c);
+ Wire.endTransmission();
+}
+
+// startscrollright
+// Activate a right handed scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrollright(uint8_t start, uint8_t stop){
+ ssd1306_command(SSD1306_RIGHT_HORIZONTAL_SCROLL);
+ ssd1306_command(0X00);
+ ssd1306_command(start);
+ ssd1306_command(0X00);
+ ssd1306_command(stop);
+ ssd1306_command(0X01);
+ ssd1306_command(0XFF);
+ ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+// startscrollleft
+// Activate a right handed scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrollleft(uint8_t start, uint8_t stop){
+ ssd1306_command(SSD1306_LEFT_HORIZONTAL_SCROLL);
+ ssd1306_command(0X00);
+ ssd1306_command(start);
+ ssd1306_command(0X00);
+ ssd1306_command(stop);
+ ssd1306_command(0X01);
+ ssd1306_command(0XFF);
+ ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+// startscrolldiagright
+// Activate a diagonal scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrolldiagright(uint8_t start, uint8_t stop){
+ ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA);
+ ssd1306_command(0X00);
+ ssd1306_command(SSD1306_LCDHEIGHT);
+ ssd1306_command(SSD1306_VERTICAL_AND_RIGHT_HORIZONTAL_SCROLL);
+ ssd1306_command(0X00);
+ ssd1306_command(start);
+ ssd1306_command(0X00);
+ ssd1306_command(stop);
+ ssd1306_command(0X01);
+ ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+// startscrolldiagleft
+// Activate a diagonal scroll for rows start through stop
+// Hint, the display is 16 rows tall. To scroll the whole display, run:
+// display.scrollright(0x00, 0x0F)
+void SSD1306::startscrolldiagleft(uint8_t start, uint8_t stop){
+ ssd1306_command(SSD1306_SET_VERTICAL_SCROLL_AREA);
+ ssd1306_command(0X00);
+ ssd1306_command(SSD1306_LCDHEIGHT);
+ ssd1306_command(SSD1306_VERTICAL_AND_LEFT_HORIZONTAL_SCROLL);
+ ssd1306_command(0X00);
+ ssd1306_command(start);
+ ssd1306_command(0X00);
+ ssd1306_command(stop);
+ ssd1306_command(0X01);
+ ssd1306_command(SSD1306_ACTIVATE_SCROLL);
+}
+
+void SSD1306::stopscroll(void){
+ ssd1306_command(SSD1306_DEACTIVATE_SCROLL);
+}
+
+void SSD1306::ssd1306_data(uint8_t c) {
+ // I2C
+ uint8_t control = 0x40; // Co = 0, D/C = 1
+ Wire.beginTransmission(_i2caddr);
+ Wire.write(control);
+ Wire.write(c);
+ Wire.endTransmission();
+}
+
+void SSD1306::fill(unsigned char dat)
+{
+ unsigned char i,j;
+
+ ssd1306_command(0x00);//set lower column address
+ ssd1306_command(0x10);//set higher column address
+ ssd1306_command(0xB0);//set page address
+
+ uint8_t twbrbackup = TWBR;
+ TWBR = 18; // upgrade to 400KHz!
+ for (byte i=0; i<(SSD1306_LCDHEIGHT/8); i++)
+ {
+ // send a bunch of data in one xmission
+ ssd1306_command(0xB0 + i);//set page address
+ ssd1306_command(0);//set lower column address
+ ssd1306_command(0x10);//set higher column address
+
+ for(byte j = 0; j < 8; j++){
+ Wire.beginTransmission(_i2caddr);
+ Wire.write(0x40);
+ for (byte k = 0; k < 16; k++) {
+ Wire.write(dat);
+ }
+ Wire.endTransmission();
+ }
+ }
+ TWBR = twbrbackup;
+}
+
+void SSD1306::draw8x8(byte* buffer, uint8_t x, uint8_t y)
+{
+ // send a bunch of data in one xmission
+ ssd1306_command(0xB0 + y);//set page address
+ ssd1306_command(x & 0xf);//set lower column address
+ ssd1306_command(0x10 | (x >> 4));//set higher column address
+
+ Wire.beginTransmission(_i2caddr);
+ Wire.write(0x40);
+ Wire.write(buffer, 8);
+ Wire.endTransmission();
+}
--
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