M Heimbach

Storing User Input

Discussion created by M Heimbach on Jan 19, 2010
Latest reply on Jan 20, 2010 by bigmac

Hi, I'm using an HCS08LG32 with an external display and keypad.  I'm looking for a method to accept user preferences, to be used later after power is recycled.  For example, when displaying a temperature, the user can input whether the default is Celcius or Fahrenheit.  All subsequent uses of the board will then default to the user preference.  I would also like to store user inputted programs (a series of keystrokes stored in an array), to be recalled for later user over the life of the product. 

  I am also using an RTC and want to store the number of hours the uP is in use (when powered with the RTC running) over multiple uses (powered on/off over a period of months).

Any suggestions ?    Do I need to use an external Flash/EEPROM ?

BTW.  I am coding in C.