Getting DS1302 object to run in the attached program

djt · 2010-01-02 21:34

I have put together a series of modified objects obtained from the object exchange web site. (See attachment 1).The combined modified objects run OK and give me the data I want. ·I now want to add the date and time when the data (Temperature ,REL Humidity· dew point and light readings) are obtained.· I have attempted to incorporate the DS1302 object (See attachment 2) into attachment 1 with no success. ·Attachment 3 shows my current try. What am I doing wrong? Any help would be greately appreciated.

Thank's,· djt

StefanL38 · 2010-01-03 09:15

Hello djt,

first use the archive function of the propeller-tool to create a zip-archive that contains ALL *.Spin-files that were needed to compile your project.

You are a lucky guy that I downloaded the other *.SPIN-files from earlier questions you had.

if you take a look into the file DS1392_full-demo you see two initial calls of the object

  '==================================================================================
  'call this function each time the propeller starts
  rtc.init( 4, 5, 6 )                             'ports Clock, io, chip enable

  '==================================================================================
  'call this function only after DS1302 power on
  rtc.config                                      'Set configuration register

In your code this initialisation is missing

best regards

Stefan

djt · 2010-01-03 21:36

Hello StefanL38,

Thank you for your reply. I probably removed the two items as I was trying to get the program to work and forgot to return them. I've re-installed these items and the program runs. Unfortunately, I think I phrased my original questions incorrectly. The program returns all results including the time and date, but the time and date results are 00:00:00 00 00 00 00.

I have not found how to add the starting time and date to the DS1302_full program. I have added them to the DS1302_full_demo program, but when I use that object (DS1302_full_demo)instead of the DS1302_full object in the SenirionDemoLight1 program I get an error(need Subroutine)·in the following line in the SensirionDemoLight1 program:

····· rtc1.readTime( @hour, @minute, @second )

I am now using an object that has a method in another object. I'm lost!!
I hate to bother you with these questions, but you have been extreemly helpful in the past and I hope you see your way to helping a·neophite·continue to gain knowledge in this fascinating but complex field.

Thank's, djt

StefanL38 · 2010-01-04 04:25

Hello djt,

do you get 00:00:00 00 00 00 00 ALL the time or only if you start your code

and then it returns
00:00:01 00 00 00 00
00:00:02 00 00 00 00
00:00:03 00 00 00 00
00:00:04 00 00 00 00
....

This file DS1302_full.spin is some kind of a driver that provides functionality to interact with the DS1302-chip.
This file DS1302_full.spin contains the subroutines that YOU have to call to to interact with the DS1302-chip.

Everytime you use an object-file you leave this object-file ITSELF as it is. Never ever do ANY changes to an objectfile ITSELF

The file DS1302_full_demo.spin is a MAIN-program that does calling the subroutines of the file DS1302_full.spin

Inside DS1302_full_demo.spin there is a call of the method rtc.setDatetime

You have to call the method rtc.setDatetime INSIDE of the *.SPIN-file that is YOUR main-program.

Maybe you can imagine objectfiles like DS1302_full.spin as a toolbox with several tools in it.

If you want to use them at a friend you take the toolbox into your car and take it to your friend.
At your friend you take out a tool to use it.

Now to stay in the picture. If you would load into your car the "At your friend you take out a tool" this will surely not work
as you can not "load" an imaterial "doing" into your car. And here the picture is not so good. (but the best I have handy in my mind at the moment)

So again the file DS1302_full.spin is the toolbox containing the tools.

DS1302_full_demo.spin is the house of person A with the toolbox DS1302_full.spin to use it in the house of Person A

SensirionDemoLight1.spin is YOUR house and you have to buy a toolbox of type DS1302_full.spin and put it into YOUR house so that you have
all tools of DS1302_full.spin handy.

If you want to know what tools the toolbox DS1302_full.spin has you have to open the file DS1302_full.spin and take a look inside.
Now here the analogon "toolbox" does not fit in every detail.

inside The file DS1302_full.spin you find the following methods (subroutines)

PUB command(clock_or_ram, register, r_or_w)
PUB init( inClk, inIo, inCe ) 
PUB config
PUB setDatetime( _mth, _day, _year, _dow, _hr, _min, _sec )
PUB readDate( _day, _mth, _year, _dow )
PUB readTime( _hr, _min, _sec ) | tmp1, tmp2
Pub read( cmd ) | i
Pub write( cmd, data ) 
PUB writeN(cmd, dataPtr, n)|i
Pub readN(cmd, dataPtr, n)|i
PRI readByte|i
PRI writeByte( cmd ) | i  
PRI bin2bcd(dataIn) | tmp
PRI bcd2bin(dataIn)

from these you only need

PUB init( inClk, inIo, inCe ) 
PUB config
PUB setDatetime( _mth, _day, _year, _dow, _hr, _min, _sec )
PUB readDate( _day, _mth, _year, _dow )
PUB readTime( _hr, _min, _sec ) | tmp1, tmp2

ATTENTION the above lines are the DEFINITION of the tools NOT the USE of them.

How you USE them is shown in the file DS1302_full_demo.spin

  '==================================================================================
  'call this function each time the propeller starts
  rtc.init( 4, 5, 6 )                             'ports Clock, io, chip enable

  '==================================================================================
  'call this function only after DS1302 power on
  rtc.config                                      'Set configuration register

  '==================================================================================
  'set time
  rtc.setDatetime( 09, 22, 09, 3, 20, 20, 00 )    'month, day, year, day of week, hour, minute, second
                                                        
  '==================================================================================
....
    rtc.readTime( @hour, @minute, @second )     'read time from DS1302
    rtc.readDate( @day, @month, @year, @dow )   'read date from DS1302

the other PUB-methods are sub-sub-routines (like small parts of a complex tool) that are nescessary for the function of the tool but you use the tool as a WHOLE thing and not some small parts of it

by the way
did you work through the Propeller Education Kit Labs Fundamentals Version 1.1

found here C:\Program Files\Parallax Inc\Propeller Tool v1.2.6\Examples\PE Kit\Propeller Education Kit Labs-Fundamentals v1.1.pdf
If not it is highly recommended as you leaved the area of small blinking programs long ago and work with programs complex like this

OBJ
  term          : "FullDuplexSerial"
  sht           : "Sensirion"
  fp            : "FloatString"
  f             : "Float32"
  light         :"tsl230_pi"
  LCD1          : "LCD_16x2_4Bit"
   SN           : "Simple_Numbers"
  rtc1          : "DS1302_full"

best regards

Stefan

Getting DS1302 object to run in the attached program

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