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replicape: Try to detect shift register spi on spidev2.1 

Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2019-07-11 17:56:41 -04:00
parent 25438a7901
commit bc78bc4864
1 changed files with 7 additions and 4 deletions
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11
klippy/extras/replicape.py
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@ -1,13 +1,12 @@
# Code to configure miscellaneous chips
#
# Copyright (C) 2017,2018 Kevin O'Connor <kevin@koconnor.net>
# Copyright (C) 2017-2019 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import logging
import logging, os
import pins, mcu, bus
REPLICAPE_MAX_CURRENT = 3.84
REPLICAPE_SHIFT_REGISTER_BUS = "spidev1.1"
REPLICAPE_PCA9685_BUS = 2
REPLICAPE_PCA9685_ADDRESS = 0x70
REPLICAPE_PCA9685_CYCLE_TIME = .001
@ -198,7 +197,11 @@ class Replicape:
and self.stepper_dacs):
shift_registers[4] &= ~1
self.sr_enabled = list(reversed(shift_registers))
self.sr_spi = bus.MCU_SPI(self.host_mcu, REPLICAPE_SHIFT_REGISTER_BUS,
sr_spi_bus = "spidev1.1"
if not self.host_mcu.is_fileoutput() and os.path.exists(
'/sys/devices/platform/ocp/481a0000.spi/spi_master/spi2'):
sr_spi_bus = "spidev2.1"
self.sr_spi = bus.MCU_SPI(self.host_mcu, sr_spi_bus,
None, 0, 50000000, self.sr_disabled)
self.sr_spi.spi_send(self.sr_disabled)
def note_pwm_start_value(self, channel, start_value, shutdown_value):