Different programming for bs2 and bs2p

Patricia

I have a system that runs with two bs2's and I tried to replace them with bs2p's.· The software seemed to write OK, but doesn't execute.· I am using PBasic 2.0.· I thought that the bs2p also used PBasic 2.0.· Am I wrong?· Are there some differences I am not aware of?· Also, I thought the pinouts are the same as well.· Any help would be appreciated!

achilles03

Why do you think it is not executing? On the hardware side of things, what isn't working? An LED, writing to an eeprom, a servo motor, etc?

On the code side, what are you trying to do? If you can paste your code that would help.

Dave

Unsoundcode

Hi, I recommend the latest version of the IDE software which is V 2.4 and implements Pbasic V2.5 at theis link http://www.parallax.com/tabid/441/Default.aspx

The problem you are seeing though is more likely due to the fact that the BS2p operates at a different speed to the BS2 so any time sensitive instructions in your code will not work as they did before eg: SERIN/SEROUT . The Pbasic help files document the differences.

Jeff T.

Patricia

Thanks! I suspected that it might be timing but wasn't sure. My program starts with a SERIN command, so it must be the problem.

MrBi11

Patricia,
If you start out your code with these compiler directives:

#SELECT $STAMP
  #CASE BS2, BS2E, BS2PE
    T1200       CON     813
    T2400       CON     396
    T9600       CON     84
    T19K2       CON     32
    T38K4       CON     6
  #CASE BS2SX, BS2P
    T1200       CON     2063
    T2400       CON     1021
    T9600       CON     240
    T19K2       CON     110
    T38K4       CON     45
  #CASE BS2PX
    T1200       CON     3313
    T2400       CON     1646
    T9600       CON     396
    T19K2       CON     188
    T38K4       CON     84
#ENDSELECT

Inverted       CON     $4000
Open            CON     $8000

Baud            CON     T9600  + Inverted  ‘ NOTE: Select the Settings you need here

SerRecv        PIN      0   ' Select your Serial Input pin here
SerXmit         PIN      1   ' Select your Serial Output pin here

then use SERIN SerRecv, Baud, [noparse][[/noparse]data2get...

etc.

This will automatically change based on your {Stamp} directive when you compile the program

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