Digole Serial Display FRDM-KL25Z Test Program Requires pull-ups on the SDA & SCL data lines. Digole Serial modified with extra Stop commands so that it works with the FRDM-KL25Z I2C library functions. Works fine on LPC1768 without extra Stop commands.

Dependencies:   mbed

Revision:
0:535e018f97b9
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/DigoleSerialDisplay/DigoleSerialDisp.cpp	Sat Jun 22 09:33:42 2013 +0000
@@ -0,0 +1,557 @@
+/** Digole Serial Display library
+ *
+ * @Author: Digole Digital Solutions : www.digole.com ported to mbed by Michael Shimniok www.bot-thoughts.com
+ */
+ 
+#include "mbed.h"
+#include "DigoleSerialDisp.h"
+#include <stdio.h>
+#include <string.h>
+#include <inttypes.h>
+
+char null = 0;
+
+
+// that resetting the Arduino doesn't reset the LCD, so we
+// can't assume that its in that state when a sketch starts (and the
+// LiquidCrystal constructor is called).
+
+//UART function
+
+char buf[128];
+char tmp[128];
+
+DigoleSerialDisp::DigoleSerialDisp(PinName sda, PinName scl, uint8_t address):
+    _device(sda, scl)
+{
+    _address = (address<<1);
+    _device.frequency(100000);
+    _Comdelay=70;
+}
+
+size_t DigoleSerialDisp::write(const char x)
+{
+    _device.write(_address, (char *) &x, 1);
+    _device.stop();
+    return 1;
+}
+
+size_t DigoleSerialDisp::write(const char *str) 
+{
+    if (str == NULL) return 0;
+    return write(str, strlen(str));
+}
+    
+size_t DigoleSerialDisp::write(const char *buffer, size_t size)
+{
+    int len = 0;
+    if (buffer != NULL) {
+        _device.write(_address, (char *) buffer, size);
+        len = size;
+        delay(7);
+        _device.stop();
+    }
+    return len;
+}
+
+
+size_t DigoleSerialDisp::print(const char c)
+{
+    buf[0] = 'T';
+    buf[1] = 'T';
+    buf[2] = c;
+    buf[3] = 0;
+    write(buf);
+    write(null);
+    return 1;
+}
+
+size_t DigoleSerialDisp::print(const char s[])
+{
+    int len = strlen(s);
+
+    if (s == NULL) return 0;
+
+    buf[0] = 'T';
+    buf[1] = 'T';
+    buf[2] = 0;
+    strncat(buf, s, 125);
+    write(buf);
+    write(null);
+    return len;
+}
+
+size_t DigoleSerialDisp::println(const char s[])
+{
+    return print(s);
+}
+
+/*
+ Print.cpp - Base class that provides print() and println()
+ Copyright (c) 2008 David A. Mellis.  All right reserved.
+ 
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ 
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ Lesser General Public License for more details.
+ 
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ 
+ Modified 23 November 2006 by David A. Mellis
+ */
+
+size_t DigoleSerialDisp::print(unsigned char b, int base)
+{
+  return print((unsigned long) b, base);
+}
+
+size_t DigoleSerialDisp::print(int n, int base)
+{
+  return print((long) n, base);
+}
+
+size_t DigoleSerialDisp::print(unsigned int n, int base)
+{
+  return print((unsigned long) n, base);
+}
+
+size_t DigoleSerialDisp::print(long n, int base)
+{
+  if (base == 0) {
+    return write(n);
+  } else if (base == 10) {
+    if (n < 0) {
+      int t = print('-');
+      n = -n;
+      return printNumber(n, 10) + t;
+    }
+    return printNumber(n, 10);
+  } else {
+    return printNumber(n, base);
+  }
+}
+
+size_t DigoleSerialDisp::print(unsigned long n, int base)
+{
+  if (base == 0) return write(n);
+  else return printNumber(n, base);
+}
+
+size_t DigoleSerialDisp::print(double n, int digits)
+{
+  return printFloat(n, digits);
+}
+
+size_t DigoleSerialDisp::println(unsigned char b, int base)
+{
+  size_t n = print(b, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(unsigned int num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(unsigned long num, int base)
+{
+  size_t n = print(num, base);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(double num, int digits)
+{
+  size_t n = print(num, digits);
+  n += println();
+  return n;
+}
+
+size_t DigoleSerialDisp::println(void) 
+{
+    return 1;
+}
+
+// Private Methods /////////////////////////////////////////////////////////////
+
+size_t DigoleSerialDisp::printNumber(unsigned long n, uint8_t base) {
+  char buf[8 * sizeof(long) + 1]; // Assumes 8-bit chars plus zero byte.
+  char *str = &buf[sizeof(buf) - 1];
+
+  *str = '\0';
+
+  // prevent crash if called with base == 1
+  if (base < 2) base = 10;
+
+  do {
+    unsigned long m = n;
+    n /= base;
+    char c = m - base * n;
+    *--str = c < 10 ? c + '0' : c + 'A' - 10;
+  } while(n);
+
+  return write(str);
+}
+
+size_t DigoleSerialDisp::printFloat(double number, uint8_t digits) 
+{ 
+  size_t n = 0;
+  
+  if (isnan(number)) return print("nan");
+  if (isinf(number)) return print("inf");
+  if (number > 4294967040.0) return print ("ovf");  // constant determined empirically
+  if (number <-4294967040.0) return print ("ovf");  // constant determined empirically
+  
+  // Handle negative numbers
+  if (number < 0.0)
+  {
+     n += print('-');
+     number = -number;
+  }
+
+  // Round correctly so that print(1.999, 2) prints as "2.00"
+  double rounding = 0.5;
+  for (uint8_t i=0; i<digits; ++i)
+    rounding /= 10.0;
+  
+  number += rounding;
+
+  // Extract the integer part of the number and print it
+  unsigned long int_part = (unsigned long)number;
+  double remainder = number - (double)int_part;
+  n += print(int_part);
+
+  // Print the decimal point, but only if there are digits beyond
+  if (digits > 0) {
+    n += print("."); 
+  }
+
+  // Extract digits from the remainder one at a time
+  while (digits-- > 0)
+  {
+    remainder *= 10.0;
+    int toPrint = int(remainder);
+    n += print(toPrint);
+    remainder -= toPrint; 
+  } 
+  
+  return n;
+}
+
+/*---------functions for Text and Graphic LCD adapters---------*/
+void DigoleSerialDisp::disableCursor(void) 
+{
+    write("CS");
+    write(null);
+}
+
+void DigoleSerialDisp::enableCursor(void) 
+{
+    write("CS");
+    write(1);
+}
+
+void DigoleSerialDisp::drawStr(uint8_t x, uint8_t y, const char *s) 
+{
+    write("TP");
+    write(x);
+    write(y);
+    write("TT");
+    write(s);
+    write(null);
+}
+
+void DigoleSerialDisp::setPrintPos(uint8_t x, uint8_t y, uint8_t graph) 
+{
+    if (graph == _TEXT_) {
+        write("TP");
+        write(x);
+        write(y);
+    } else {
+        write("GP");
+        write(x);
+        write(y);
+    }
+}
+
+void DigoleSerialDisp::clearScreen(void) 
+{
+    //write(null);
+    write("CL");
+}
+
+void DigoleSerialDisp::setLCDColRow(uint8_t col, uint8_t row) 
+{
+    write("STCR");
+    write(col);
+    write(row);
+    write("\x80\xC0\x94\xD4");
+}
+
+void DigoleSerialDisp::setI2CAddress(uint8_t add) 
+{
+    write("SI2CA");
+    write(add);
+    _address = (add<<1);
+}
+
+void DigoleSerialDisp::displayConfig(uint8_t v) 
+{
+    write("DC");
+    write(v);
+}
+
+void DigoleSerialDisp::preprint(void) 
+{
+    //print("TT");
+}
+
+/*----------Functions for Graphic LCD/OLED adapters only---------*/
+void DigoleSerialDisp::drawBitmap(uint8_t x, uint8_t y, uint8_t w, uint8_t h, const uint8_t *bitmap) {
+    uint8_t i = 0;
+    if ((w & 7) != 0)
+        i = 1;
+    write("DIM");
+    write(x); //x;
+    write(y);
+    write(w);
+    write(h);
+    for (int j = 0; j < h * ((w >> 3) + i); j++) {
+        write( (const char *) (bitmap+j) );
+        delay(1);
+    }
+}
+
+void DigoleSerialDisp::setRot90(void) {
+    write("SD1");
+}
+
+void DigoleSerialDisp::setRot180(void) {
+    write("SD2");
+}
+
+void DigoleSerialDisp::setRot270(void) {
+    write("SD3");
+}
+
+void DigoleSerialDisp::undoRotation(void) {
+    write("SD0");
+}
+
+void DigoleSerialDisp::setRotation(uint8_t d) {
+    write("SD");
+    write(d);
+}
+
+void DigoleSerialDisp::setContrast(uint8_t c) {
+    write("CT");
+    write(c);
+}
+
+void DigoleSerialDisp::drawBox(uint8_t x, uint8_t y, uint8_t w, uint8_t h) {
+    write("FR");
+    write(x);
+    write(y);
+    write(x + w);
+    write(y + h);
+}
+
+void DigoleSerialDisp::drawCircle(uint8_t x, uint8_t y, uint8_t r, uint8_t f) {
+    write("CC");
+    write(x);
+    write(y);
+    write(r);
+    write(f);
+}
+
+void DigoleSerialDisp::drawDisc(uint8_t x, uint8_t y, uint8_t r) {
+    drawCircle(x, y, r, 1);
+}
+
+void DigoleSerialDisp::drawFrame(uint8_t x, uint8_t y, uint8_t w, uint8_t h) {
+    write("DR");
+    write(x);
+    write(y);
+    write(x + w);
+    write(y + h);
+}
+
+void DigoleSerialDisp::drawPixel(uint8_t x, uint8_t y, uint8_t color) {
+    write("DP");
+    write(x);
+    write(y);
+    write(color);
+}
+
+void DigoleSerialDisp::drawLine(uint8_t x, uint8_t y, uint8_t x1, uint8_t y1) {
+    write("LN");
+    write(x);
+    write(y);
+    write(x1);
+    write(y1);
+}
+
+void DigoleSerialDisp::drawLineTo(uint8_t x, uint8_t y) {
+    write("LT");
+    write(x);
+    write(y);
+}
+
+void DigoleSerialDisp::drawHLine(uint8_t x, uint8_t y, uint8_t w) {
+    drawLine(x, y, x + w, y);
+}
+
+void DigoleSerialDisp::drawVLine(uint8_t x, uint8_t y, uint8_t h) {
+    drawLine(x, y, x, y + h);
+}
+
+void DigoleSerialDisp::nextTextLine(void) {
+    write(null);
+    write("TRT");
+}
+
+void DigoleSerialDisp::setFont(uint8_t font) {
+    write("SF");
+    write(font);
+}
+
+void DigoleSerialDisp::setColor(uint8_t color) {
+    write("SC");
+    write(color);
+}
+
+void DigoleSerialDisp::backLightOn(void) {
+    write("BL");
+    write(1);
+}
+
+void DigoleSerialDisp::backLightOff(void) {
+    write("BL");
+    write(null);
+}
+
+void DigoleSerialDisp::directCommand(uint8_t d) {
+    write("MCD");
+    write(d);
+}
+
+void DigoleSerialDisp::directData(uint8_t d) {
+    write("MDT");
+    write(d);
+}
+
+void DigoleSerialDisp::moveArea(uint8_t x0, uint8_t y0, uint8_t x1, uint8_t y1, char xoffset, char yoffset) {
+    write("MA");
+    write(x0);
+    write(y0);
+    write(x1);
+    write(y1);
+    write(xoffset);
+    write(yoffset);
+}
+
+
+void DigoleSerialDisp::displayStartScreen(uint8_t m) {
+    write("DSS");
+    write(m);
+} //display start screen
+
+
+void DigoleSerialDisp::setMode(uint8_t m) {
+    write("DM");
+    write(m);
+} //set display mode
+
+
+void DigoleSerialDisp::setTextPosBack(void) {
+    write("ETB");
+} //set text position back to previous, only one back allowed
+
+
+void DigoleSerialDisp::setTextPosOffset(char xoffset, char yoffset) {
+    write("ETO");
+    write(xoffset);
+    write(yoffset);
+}
+
+
+void DigoleSerialDisp::setTextPosAbs(uint8_t x, uint8_t y) {
+    write("ETP");
+    write(x);
+    write(y);
+}
+
+
+void DigoleSerialDisp::setLinePattern(uint8_t pattern) {
+    write("SLP");
+    write(pattern);
+}
+
+
+void DigoleSerialDisp::setLCDChip(uint8_t chip) {      //only for universal LCD adapter
+    write("SLCD");
+    write(chip);
+}
+
+
+void DigoleSerialDisp::uploadStartScreen(int lon, const unsigned char *data) 
+{
+    int j;
+    uint8_t c;
+    write("SSS");
+    write((uint8_t) (lon % 256));
+    write((uint8_t) (lon / 256));
+    for (j = 0; j < lon;j++) {
+        if((j%32)==0)
+            delay(10);
+        delay(_Comdelay);
+        c = data[j];
+        write(c);
+    }
+}
+
+
+void DigoleSerialDisp::uploadUserFont(int lon, const unsigned char *data, uint8_t sect) {
+    uint8_t c;
+    write("SUF");
+    write(sect);
+    write((uint8_t) (lon % 256));
+    write((uint8_t) (lon / 256));
+    for (int j = 0; j < lon; j++) {
+        if((j%32)==0)
+            delay(10);
+        delay(_Comdelay);
+        c = data[j];
+        write(c);
+    }
+}
+
+void DigoleSerialDisp::digitalOutput(uint8_t x) 
+{
+    write("DOUT");
+    write(x);
+}
\ No newline at end of file