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spi_temperature: Provide a default value for spi_speed

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All of the Maxim chips support a 4Mhz spi transfer rate, so use that
as a default spi speed.

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2018-07-24 15:49:14 -04:00
parent 5b124d59f2
commit 63dffd9307
3 changed files with 3 additions and 7 deletions
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klippy/extras/spi_temperature.py
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@ -32,7 +32,7 @@ class SensorBase:
pin = pin_params['pin']
# SPI bus configuration
spi_oid = mcu.create_oid()
spi_speed = config.getint('spi_speed', minval=0)
spi_speed = config.getint('spi_speed', 4000000, minval=1)
mcu.add_config_cmd(
"config_spi oid=%u bus=0 pin=%s mode=1 rate=%u shutdown_msg=" % (
spi_oid, pin, spi_speed))