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docs: Change the debugging docs to recommend a serial baud rate of 250000 

A baud of 250000 is a better choice for production use.  It's better
to test with that rate also.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2016-06-10 19:51:04 -04:00
parent e4859d2e9a
commit bb3b881e21
2 changed files with 6 additions and 7 deletions
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2
config/avrsim.cfg
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@ -76,7 +76,7 @@ hard_pwm: 1
[mcu] [mcu]
serial: /tmp/pseudoserial serial: /tmp/pseudoserial
baud: 115200 baud: 250000
pin_map: arduino pin_map: arduino
[printer] [printer]

11
docs/Debugging.md
View File

@ -33,12 +33,11 @@ make menuconfig
``` ```
and compile the firmware for an AVR atmega644p, disable the AVR and compile the firmware for an AVR atmega644p, disable the AVR
watchdog timer, set the MCU frequency to 20000000, and set the serial watchdog timer, and set the MCU frequency to 20000000. Then one can
baud rate to 115200. Then one can compile Klipper (run `make`) and compile Klipper (run `make`) and then start the simulation with:
then start the simulation with:
``` ```
PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py -m atmega644 -s 20000000 -b 115200 out/klipper.elf PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py -m atmega644 -s 20000000 -b 250000 out/klipper.elf
``` ```
It may be necessary to create a python virtual environment to run It may be necessary to create a python virtual environment to run
@ -66,7 +65,7 @@ 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 115200 out/klipper.elf -t PORTA.PORT,PORTC.PORT PYTHONPATH=/path/to/simulavr/src/python/ ./scripts/avrsim.py -m atmega644 -s 20000000 -b 250000 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
@ -86,5 +85,5 @@ commands (functions marked with the DECL_COMMAND() macro in the
Klipper source code). To do so, run: Klipper source code). To do so, run:
``` ```
~/klippy-env/bin/python ./klippy/console.py /tmp/pseudoserial 115200 ~/klippy-env/bin/python ./klippy/console.py /tmp/pseudoserial 250000
``` ```