+++ /dev/null
-/*-------------------------------------------------------------------------
- lcd.c - lcd routines for the DS80C390 (tested on TINI)
-
- Written By - Johan Knol, johan.knol@iduna.nl
-
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- In other words, you are welcome to use, share and improve this program.
- You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding!
--------------------------------------------------------------------------*/
-
-#include <stdio.h>
-#include <stdarg.h>
-#include "lcd.h"
-
-#define LCD_ROWS 4
-#define LCD_COLLUMNS 20
-
-xdata at 0x380002 static unsigned char lcdIwr;
-xdata at 0x38000a static unsigned char lcdDwr;
-
-#ifdef LCD_RW
-
-xdata at 0x380003 static unsigned char lcdIrd;
-xdata at 0x38000b static unsigned char lcdDrd;
-
-#define LcdWait { while (lcdIrd&0x80) ; }
-
-#else ifdef LCD_RW
-
-// wait for 100us
-#define LcdWait { ClockMicroSecondsDelay(100) ; }
-
-#endif ifdef LCD_RW
-
-// set the dd ram addresses for the rows
-// this one is for a 20x4 LCD
-xdata static unsigned char lcdLinesStart[LCD_ROWS]={0, 0x40, 0x14, 0x54};
-
-void LcdInit() {
-
- ClockMilliSecondsDelay(16); // >15 ms
-
- lcdIwr=0x38 ;
- ClockMilliSecondsDelay(5); // >4.1 ms
-
- lcdIwr=0x38;
- ClockMicroSecondsDelay(101); // >100 us
-
- lcdIwr=0x38;
- ClockMicroSecondsDelay(101); // >100 us
-
- lcdIwr=0x38; // interface 8 bit
- ClockMicroSecondsDelay(41); // >40 us
-
- lcdIwr=0x0c; // display on
- ClockMicroSecondsDelay(41); // >40 us
-
- LcdClear();
-}
-
-void LcdOn() {
- lcdIwr=0x0c; // display on
- LcdWait;
-}
-
-void LcdOff() {
- lcdIwr=0x08; // display off
- LcdWait;
-}
-
-void LcdCursorOn() {
- // TODO
-}
-
-void LcdCursorOff() {
- // TODO
-}
-
-void LcdScrollOn() {
- // TODO
-}
-
-void LcdScrollOff() {
- // TODO
-}
-
-void LcdCharDefine() {
- // TODO
-}
-
-void LcdClear() {
- lcdIwr=0x01; // display clear
- ClockMilliSecondsDelay(6); // > 5ms
-}
-
-void LcdHome() {
- lcdIwr=0x80; // set dd ram address 0
- LcdWait;
-}
-
-void LcdGoto(unsigned int collumnRow) { // msb=collumn, lsb=row
- lcdIwr=0x80 + \
- lcdLinesStart[collumnRow&0xff] + (collumnRow>>8);
- LcdWait;
-}
-
-void LcdPutChar(char c) {
- lcdDwr=c;
- LcdWait;
-}
-
-void LcdPutString (char *string) {
- char c;
- while (c=*string++) {
- LcdPutChar (c);
- }
-}
-
-void LcdLPutString (unsigned int collumnRow, char *string) {
- LcdGoto(collumnRow);
- LcdPutString(string);
-}
-
-// let's hope that no one ever printf's more than the display width,
-// however they will :), so to be sure
-static char lcdPrintfBuffer[LCD_COLLUMNS*4];
-
-void LcdPrintf (xdata const char *format, ...) reentrant {
- va_list arg;
-
- va_start (arg, format);
- vsprintf (lcdPrintfBuffer, format, arg);
- puts (lcdPrintfBuffer);
- LcdPutString(lcdPrintfBuffer);
-
- va_end (arg);
-}
-
-void LcdLPrintf (unsigned int collumnRow, xdata const char *format, ...) reentrant {
- va_list arg;
-
- LcdGoto(collumnRow);
-
- // we can not just call LcdPrintf since we have no idea what is on the stack,
- // so we have to do it all over again
- va_start (arg, format);
- vsprintf (lcdPrintfBuffer, format, arg);
-
- LcdPutString(lcdPrintfBuffer);
-
- va_end (arg);
-}
+++ /dev/null
-/*-------------------------------------------------------------------------
- rtc390.c - rtc routines for the DS1315 (tested on TINI)
-
- Written By - Johan Knol, johan.knol@iduna.nl
-
- This program is free software; you can redistribute it and/or modify it
- under the terms of the GNU General Public License as published by the
- Free Software Foundation; either version 2, or (at your option) any
- later version.
-
- This program 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 General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
-
- In other words, you are welcome to use, share and improve this program.
- You are forbidden to forbid anyone else to use, share and improve
- what you give them. Help stamp out software-hoarding!
--------------------------------------------------------------------------*/
-
-#include <tinibios.h>
-
-#include <stdio.h>
-#include <ctype.h>
-
-//#define USE_LCD
-
-#ifdef USE_LCD
-#include "lcd.h"
-#endif
-
-/* this is the address of the ds1315 phantom time chip, although
- it doesn't really matter as long as it's in the 300000-3ffff
- range since the chip only uses CE3*
-*/
-
-xdata at 0x310000 static volatile unsigned char rtc;
-
-// this is the 64bit pattern that has to be recognized by the ds1315
-code unsigned char rtcMagic[8]={0xc5,0x3a,0xa3,0x5c,0xc5,0x3a,0xa3,0x5c};
-
-static struct RTCDate{
- int year;
- unsigned char month, day, weekDay, hour, minute, second, hundredth;
-};
-
-#define BCDtoINT(x) (((x)&0x0f)+((x)>>4)*10)
-#define INTtoBCD(x) (((x)%10)+(((x)/10)<<4))
-
-void RtcSync(void) {
- unsigned char dummy, byte,bitMask;
-
- // reset rtc chip
- dummy=rtc;
-
- // say the magic word
- for (byte=0; byte<8; byte++) {
- for (bitMask=0x01; bitMask; bitMask<<=1) {
- rtc = (rtcMagic[byte]&bitMask) ? 0xff : 0x00;
- }
- }
-}
-
-unsigned char RtcRead(struct RTCDate *rtcDate) {
- unsigned char rtcBytes[8];
- unsigned char byte,bitMask;
-
- RtcSync();
-
- for (byte=0; byte<8; byte++) {
- rtcBytes[byte]=0;
- for (bitMask=0x01; bitMask; bitMask<<=1) {
- if (rtc&1) {
- rtcBytes[byte]|=bitMask;
- }
- }
- }
- rtcDate->year=2000 + BCDtoINT(rtcBytes[7]);
- rtcDate->month=BCDtoINT(rtcBytes[6]);
- rtcDate->day=BCDtoINT(rtcBytes[5]);
- rtcDate->weekDay=rtcBytes[4]&0x07;
- rtcDate->hour=BCDtoINT(rtcBytes[3]);
- rtcDate->minute=BCDtoINT(rtcBytes[2]);
- rtcDate->second=BCDtoINT(rtcBytes[1]);
- rtcDate->hundredth=BCDtoINT(rtcBytes[0]);
- if ((rtcBytes[4]&0x30) || (rtcBytes[3]&0x80)) {
- //oscillator not running, reset not active or in 12h mode
- return 0;
- }
- return 1;
-}
-
-void RtcWrite(struct RTCDate *rtcDate) {
- unsigned char rtcBytes[8];
- unsigned char byte,bitMask;
-
- rtcBytes[7]=INTtoBCD(rtcDate->year-2000);
- rtcBytes[6]=INTtoBCD(rtcDate->month);
- rtcBytes[5]=INTtoBCD(rtcDate->day);
- rtcBytes[4]=INTtoBCD(rtcDate->weekDay)&0x07; //set 24h mode
- rtcBytes[3]=INTtoBCD(rtcDate->hour)&0x3f; // oscilator on, reset on
- rtcBytes[2]=INTtoBCD(rtcDate->minute);
- rtcBytes[1]=INTtoBCD(rtcDate->second);
- rtcBytes[0]=INTtoBCD(rtcDate->hundredth);
-
- RtcSync();
-
- for (byte=0; byte<8; byte++) {
- for (bitMask=0x01; bitMask; bitMask<<=1) {
- rtc = (rtcBytes[byte]&bitMask) ? 0xff : 0x00;
- }
- }
-}
-
-int ScanInt(int current) {
- char reply[32], *r;
-
- gets(reply);
- if (isdigit(*(r=reply))) {
- current=0;
- do {
- current*=10;
- current+=(*r++)-'0';
- } while (isdigit(*r));
- }
- return current;
-}
-
-char GetTime(struct RTCDate *rtcDate) {
- printf ("Enter year [%d]: ", rtcDate->year);
- rtcDate->year=ScanInt(rtcDate->year);
- printf ("Enter month [%d]: ", rtcDate->month);
- rtcDate->month=ScanInt(rtcDate->month);
- printf ("Enter day [%d]: ", rtcDate->day);
- rtcDate->day=ScanInt(rtcDate->day);
- printf ("Enter hour [%d]: ", rtcDate->hour);
- rtcDate->hour=ScanInt(rtcDate->hour);
- printf ("Enter minute [%d]: ", rtcDate->minute);
- rtcDate->minute=ScanInt(rtcDate->minute);
- printf ("Enter second [%d]: ", rtcDate->second);
- rtcDate->second=ScanInt(rtcDate->second);
- rtcDate->hundredth=0;
-}
-
-void PrintTime(struct RTCDate *rtcDate) {
- printf ("%04d-%02bd-%02bd %02bd:%02bd:%02bd.%02bd\n",
- rtcDate->year, rtcDate->month, rtcDate->day,
- rtcDate->hour, rtcDate->minute, rtcDate->second,
- rtcDate->hundredth);
-}
-
-unsigned int intmul(unsigned int a, unsigned int b) {
- return a*b;
-}
-
-long longmul(long a, long b) {
- return a*b;
-}
-
-void main (void) {
- struct RTCDate rtcDate;
- unsigned char seconds=0xff;
-
- printf ("\nStarting RTC demo.\n");
-
-#ifdef USE_LCD
- LcdInit();
- LcdLPrintf (0, "Starting RTC demo.");
-#endif
-
- while(1) {
- RtcRead(&rtcDate);
-
-#ifdef USE_LCD
- // if lcd is enabled it only syncs the second time
- RtcRead(&rtcDate);
-#endif
-
-#ifdef USE_LCD
- LcdLPrintf (2,"%04d-%02bd-%02bd",
- rtcDate.year, rtcDate.month, rtcDate.day);
- LcdLPrintf (3, "%02bd:%02bd:%02bd.%02bd",
- rtcDate.hour, rtcDate.minute, rtcDate.second,
- rtcDate.hundredth);
-#endif
- if (rtcDate.second!=seconds) {
- PrintTime(&rtcDate);
- seconds=rtcDate.second;
- }
-
- if (Serial0CharArrived()) {
- switch (getchar())
- {
- case 0:
- break;
- case 'q':
- printf ("Ok.\n");
- return;
- default:
- if (GetTime(&rtcDate)) {
-#ifndef USE_LCD
- PrintTime(&rtcDate);
- RtcWrite(&rtcDate);
- printf ("Time written.\n");
-#endif
- }
- }
- }
- }
-
-}
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