if not rate in adxl355.ODR_TO_BIT:
print("Can only do the following data rates: {:s}".format(
sorted(adxl355.ODR_TO_BIT.keys())))
exit(-1)
# init spi interface
spi = spidev.SpiDev()
bus = 0
device = 1
spi.open(bus, device)
spi.max_speed_hz = 5000000
# important - ADXL 355 has mode SPOL=0 SPHA=0
spi.mode = 0b00
# init adxl355
acc = adxl355.ADXL355(spi.xfer2)
acc.start()
acc.setrange(adxl355.SET_RANGE_2G)
print("{:b}".format(adxl355.ODR_TO_BIT[rate]))
acc.setfilter(lpf=adxl355.ODR_TO_BIT[rate])
print("{:08b}".format(acc.read(adxl355.REG_FILTER)))
acc.setfilter(lpf=adxl355.SET_ODR_62_5)
datalist = []
t0 = time.time()
tc = time.time()
msamples = mtime * rate
mperiod = 1.0 / rate
spi1.open(bus1, device1)
spi1.max_speed_hz = 5000000
# important - ADXL 355 has mode SPOL=0 SPHA=0
spi1.mode = 0b00
# init spi interface for lis3dhh
spi2 = spidev.SpiDev()
bus2 = 0
device2 = 0
spi2.open(bus2, device2)
spi2.max_speed_hz = 5000000
# important - lis3dhh has mode SPOL=1 SPHA=1
spi2.mode = 0b11
# init adxl355
acc1 = adxl355.ADXL355(spi1.xfer2)
rate = 1000
acc1.setfilter(lpf=adxl355.SET_ODR_1000) # set data rate to 1khz
# init lis3dhh
acc2 = lis3dhh.LIS3DHH(spi2.xfer2)
IDX_ADXL355 = 0
IDX_LIS3DHH = 1
# measure both for mtime seconds
msamples = {}
msamples[IDX_ADXL355] = mtime * rate
msamples[IDX_LIS3DHH] = mtime * 1100
mperiod = {}
mperiod[IDX_ADXL355] = 1.0 / rate