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#
# $Id$
#
This example illustrates how one can provide a program external to the
simulated AVR which provides "feedback" to the simulated program. A
feedback program can interact with the AVR hosted program just like devices
would in the "real world."
This example is certainly a primitive example of this but it illustrates
the principle. The application writes the following lines to UART0:
hello world #1
hello world #2
hello world #3
hello world #1
The initial input value of ADC0 is 0. When the feedback modules sees
1, 2 or 3, it changes the "voltage" on ADC0. The debug output expected is:
ADC0=10 expect 10
ADC0=20 expect 20
ADC0=30 expect 30
ADC0=10 expect 10
Building and running the example:
- configure simulavr with TCL, this needs TCL/TK installed. For the most
distributions it's also necessary to install TCL dev package (tclConfig.sh
is needed), iTCL is also needed!
- build simulavr (make), the files here are also built in this step
- then start the example: go to examples/feedback directory and type "make do"
- other possibility is::
../simulavr.tcl -d atmega128 -f feedback.elf -s ./feedback.tcl \
-W 0x20,/dev/stderr -R 0x22,- -F 4000000 -T exit -S ./simfeedback.tcl
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