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avrsim: Change default speed to 16Mhz and default baud to 250K 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2021-09-16 20:09:33 -04:00
parent 46167cae67
commit 59bd51d207
2 changed files with 7 additions and 8 deletions
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11
docs/Debugging.md
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@ -219,13 +219,12 @@ cd /path/to/klipper
make menuconfig make menuconfig
``` ```
and compile the micro-controller software for an AVR atmega644p, set and compile the micro-controller software for an AVR atmega644p and
the MCU frequency to 20Mhz, and select SIMULAVR software emulation select SIMULAVR software emulation support. Then one can compile
support. Then one can compile Klipper (run `make`) and then start the Klipper (run `make`) and then start the simulation with:
simulation with:
``` ```
PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py -m atmega644 -s 20000000 -b 250000 out/klipper.elf PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py out/klipper.elf
``` ```
Then, with simulavr running in another window, one can run the Then, with simulavr running in another window, one can run the
@ -246,7 +245,7 @@ the directions above, but run avrsim.py with a command-line like the
following: following:
``` ```
PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py -m atmega644 -s 20000000 -b 250000 out/klipper.elf -t PORTA.PORT,PORTC.PORT PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py out/klipper.elf -t PORTA.PORT,PORTC.PORT
``` ```
The above would create a file **avrsim.vcd** with information on each The above would create a file **avrsim.vcd** with information on each

4
scripts/avrsim.py
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@ -169,11 +169,11 @@ def main():
opts = optparse.OptionParser(usage) opts = optparse.OptionParser(usage)
opts.add_option("-m", "--machine", type="string", dest="machine", opts.add_option("-m", "--machine", type="string", dest="machine",
default="atmega644", help="type of AVR machine to simulate") default="atmega644", help="type of AVR machine to simulate")
opts.add_option("-s", "--speed", type="int", dest="speed", default=8000000, opts.add_option("-s", "--speed", type="int", dest="speed", default=16000000,
help="machine speed") help="machine speed")
opts.add_option("-r", "--rate", type="float", dest="pacing_rate", opts.add_option("-r", "--rate", type="float", dest="pacing_rate",
default=0., help="real-time pacing rate") default=0., help="real-time pacing rate")
opts.add_option("-b", "--baud", type="int", dest="baud", default=38400, opts.add_option("-b", "--baud", type="int", dest="baud", default=250000,
help="baud rate of the emulated serial port") help="baud rate of the emulated serial port")
opts.add_option("-t", "--trace", type="string", dest="trace", opts.add_option("-t", "--trace", type="string", dest="trace",
help="signals to trace (? for help)") help="signals to trace (? for help)")