|
Wireless Internet-Based Remote Control
Using a Pager Interface
by Bob Brown
Start ý CreataLink
Hardware ý FLEX Stack Firmware ý Selecting
a Microcontroller ý Putting it All Together
ý Sources and PDF
FLEX STACK FIRMWARE
The FLEX Stack software, which is written
in ANSI C, handles the details of communicating with the CreataLink
receiver. It defines an 11-function API that allows the application
portion of the firmware to communicate with the low-level receiver
drivers. Nine of the function calls reside within the FLEX Stack driver
and are called by the application firmware. The remaining two functions
are defined as notification functions, and the notification functions
reside in the application portion of the firmware. These functions
are called from the FLEX Stack driver to notify the application of
receiver events, such as reception of a message. Figure 2 shows you
a block diagram of the FLEX Stack firmware.
|
|
| Figure 2ýThe FLEX Stack module
provides a high-level interface to the CreataLink receiver. |
PREVIOUS
NEXT
Circuit Cellar provides up-to-date information for engineers. Visit
www.circuitcellar.com for
more information and additional articles.
For subscription information, call (860) 875-2199, subscribe@circuitcellar.com
or subscribe online.
ýCircuit Cellar, the Magazine for Computer Applications. Posted with
permission. |