BASIC stamp manual v2.2

5: BASIC Stamp Command Reference – DATA
BASIC Stamp Syntax and Reference Manual 2.2 • www.parallax.com • Page 153
DATA
BS1 BS2 BS2e BS2sx BS2p BS2pe BS2px
(See EEPROM)
{ Symbol } DATA DataItem { , DataItem… }
Function
Write data to the EEPROM during program download.
• Symbol is an optional, unique symbol name that will be
automatically defined as a constant equal to the location number of
the first data item.
• DataItem is a constant/expression (0 – 65535) indicating a value, and
optionally how to store the value.
Quick Facts
Table 5.7: DATA Quick Facts.
All BS2 Models
Special Notes
Writes values to EEPROM during download in blocks of 16 bytes. Writes
byte or word-sized values. Can be used to decrease program size.
Related
Commands
READ and WRITE
Explanation
When you download a program into the BASIC Stamp, it is stored in the
EEPROM starting at the highest address (2047) and working towards the
lowest address. Most programs don’t use the entire EEPROM, so the
lower portion is available for other uses. The DATA directive allows you
to define a set of data to store in the available EEPROM locations. It is
called a “directive” rather than a “command” because it performs an
activity at compile-time rather than at run-time (i.e.: the DATA directive is
not downloaded to the BASIC Stamp, but the data it contains is
downloaded).
The simplest form of the DATA directive is something like the following:
DATA 100, 200, 52, 45
This example, when downloaded, will cause the values 100, 200, 52 and 45
to be written to EEPROM locations 0, 1, 2 and 3, respectively. You can
then use the READ and WRITE commands in your code to access these
locations and the data you’ve stored there.
WRITING SIMPLE, SEQUENTIAL DATA.
1
All 2