Max1270 adc

Comments

• Peter Verkaik Posts: 3,956

  2006-07-19 06:08 edited 2006-07-19 06:08

  See last post in this thread:
  http://forums.parallax.com/showthread.php?p=585808
  You can send a private message to that member.
  
  Also see
  http://forums.parallax.com/showthread.php?p=508752
  In one of the posts there is talk about a Nuts & Volts magazine that
  explains javelin code regarding the max1270.
  
  regards peter
• Peter Verkaik Posts: 3,956

  2006-07-19 06:14 edited 2006-07-19 06:14

  Go here
  http://www.parallax.com/detail.asp?product_id=30064
  
  and get the docs and example code (also for javelin) for the StampPLC board.
  This board utilizes a MAX1270.
  The javelin example code has a read routine and conversion routines.
  
  regards peter
• GJ Posts: 19

  2006-07-19 17:11 edited 2006-07-19 17:11

  the code for the Javelin StampPLC board was very useful, thanks for the suggestion.
• GJ Posts: 19

  2006-07-19 20:34 edited 2006-07-19 20:34

  There appears to be an error in the PLC code for the javelin as it relates to selecting the ADC range. There is a set of variables for identifing the ADC mode. In the original code, the ADC_UP10 and ADC_BP10 are reversed. They should read as follows
  
  
  static final int ADC_UP5 = 0; // unipolar, 0-5 volts
  static final int ADC_BP5 = 1; // bipolar, +/- 5 volts
  static final int ADC_UP10 = 2; // unipolar, 0-10 volts
  static final int ADC_BP10 = 3; // bipolar, +/- 10 volts
  static final int ADC_420 = 4;