本文整理汇总了Python中Adafruit_BBIO.SPI.SPI.bpw方法的典型用法代码示例。如果您正苦于以下问题：Python SPI.bpw方法的具体用法？Python SPI.bpw怎么用？Python SPI.bpw使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类Adafruit_BBIO.SPI.SPI的用法示例。
在下文中一共展示了SPI.bpw方法的3个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: SPI
# 需要导入模块: from Adafruit_BBIO.SPI import SPI [as 别名]
# 或者: from Adafruit_BBIO.SPI.SPI import bpw [as 别名]
from Adafruit_BBIO.SPI import SPI
spi = SPI(0,0)
spi.open(0,0)
#spi.msh = 100000
spi.bpw = 8
#spi.mode = b00
try:
#while True:
# set CS bit high, choose first channel to read from
#channel = 0;
#adc = spi.xfer([1,8,0])
#data = ((adc[1]&3) << 8) + adc[2]
channelSelect = 0xC0
channelSelect |= 0x18
channelSelect <<= 3
fsr = spi.xfer2([channelSelect, 0x00, 0x00])
#result = spi.readbytes(2)
#result2 = spi.readbytes(1)
resultFinal = 0x0000
resultFinal = 0x0300 & (resultFinal | (fsr[1] << 8 ))
resultFinal |= ( ( 0x00FF & fsr[2]) )
#print (8 + channel ) << 4
#print resultFinal
###################################
####################################
resultFinal = 1 #temp示例2: SPI
# 需要导入模块: from Adafruit_BBIO.SPI import SPI [as 别名]
# 或者: from Adafruit_BBIO.SPI.SPI import bpw [as 别名]
#!/usr/bin/python
from Adafruit_BBIO.SPI import SPI
from time import sleep
spi = SPI(0,0)
spi.bpw = 12
spi.msh = 100000
spi.lsbfirst = False
spi.mode = 0
spi.open
tlc5947_count = 2
tlc5947_channels = 24
# buffer = [0x000] * 48
buffer = [0x000] * (tlc5947_count * tlc5947_channels)
#spi.writebytes(buffer)
#print buffer
spi.writebytes(buffer)
#sleep(1)
spi.close
# CS_0 P9_17 lat
# DO P9_21 din
# DI P9_18 n/c示例3: RegWrite
# 需要导入模块: from Adafruit_BBIO.SPI import SPI [as 别名]
# 或者: from Adafruit_BBIO.SPI.SPI import bpw [as 别名]
RegWrite(ADS1248.MUX0, 0b00000001); # MUX0: Pos. input: AIN0, Neg. input: AIN1 (Burnout current source off)
RegWrite(ADS1248.MUX1, 0b00100000); # MUX1: REF0, normal operation
RegWrite(ADS1248.SYS0, 0b00000000); # SYS0: PGA Gain = 1, 5 SPS
RegWrite(ADS1248.IDAC0,0b00000000); # IDAC0: off
RegWrite(ADS1248.IDAC1,0b11001100); # IDAC1: n.c.
RegWrite(ADS1248.VBIAS,0b00000000); # VBIAS: BIAS voltage disabled
RegWrite(ADS1248.OFC0, 0b00000000); # OFC0: 0 => reset offset calibration
RegWrite(ADS1248.OFC1, 0b00000000); # OFC1: 0 => reset offset calibration
RegWrite(ADS1248.OFC2, 0b00000000); # OFC2: 0 => reset offset calibration
RegWrite(ADS1248.GPIOCFG, 0b00000000); # GPIOCFG: all used as analog inputs
RegWrite(ADS1248.GPIODIR, 0b00000000); # GPIODIR: -
RegWrite(ADS1248.GPIODAT, 0b00000000); # GPIODAT: -
spi = SPI(0,0) #/dev/spidev1.0
spi.msh=10000 # SPI clock set to 100 kHz
spi.bpw = 8 # bits/word
spi.threewire = False
spi.lsbfirst = False
spi.mode = 1
spi.cshigh = False # ADS1248 chip select (active low)
spi.open(0,0)
GPIO.setup("P9_14", GPIO.OUT)
# drive START high to start conversion
GPIO.setup(ADS1248.STARTPIN, GPIO.OUT)
GPIO.output(ADS1248.STARTPIN,GPIO.HIGH)
time.sleep(0.02)