In SX Microcontrollers, SX/B Compiler and SX-Key Tool, Steel wrote:

Hey, everyone...I am stepping over from the Stamp to the SX Chip and have a few assumptions that I need some yes/no 's on.  If you could help me out, that would be great...
 

1.  Board layout for running the chip:

     The only required connections are 

        VSS(2) to Ground

        VDD(2) to 5V (or 3.3, but easier to do 5V for programming)

        MCLR to 5V with resistor, or to a switch/button for reset

 


2.  Board layout for programming the chip:

     The only required connections are 

        VSS(2) to Ground

        VDD(2) to 5V (or 3.3, but easier to do 5V for programming)

        MCLR to 5V with resistor, or to a switch/button for reset

        OSC1 to a OSC1 Pin for programmer

        OSC2 to a OSC2 Pin for programmer

 

3.  There is no EEPROM or Resonator requirement (PROGRAM EEPROM is internal, Resonator up to 4MHz is  \internal)

 

4.  If you have an external crystal and are in programming mode, you must have a hardware 'disconnect' for your crystal from 'colliding' with the Programming oscillator.

 

5.  Port B can be used for Interrupt Inputs.

 

6.  Unless you have a Real Time Clock running, RTCC should be nc.

 

As you can guess, I am stepping over into the Assembly Language realm (I learned it on a Motorola Processor - 68HC11...but haven't used it at all), and I think this is a cost-effective means of running from the STAMP to lower-level programming.

 

Thank you for providing this chip, and having these forums available for customers.  There are very few manufacturers/distributors that provide this type of support.

 

Thanks for the help.

---------- End of Message ----------


You can view the post on-line at:
http://forums.parallax.com/forums/default.aspx?f=7&p=1&m=120330

Need assistance? Send an email to the Forum Administrator at forumadmin@parallax.com

The Parallax Forums are powered by dotNetBB Forums, copyright 2002-2006 (http://www.dotNetBB.com)