def run(self):
#Only need to execute one of the following lines:
#spi = SPI(bus, device) #/dev/spidev<bus>.<device>
spi = SPI(0, 0) #/dev/spidev1.0
spi.msh = 2000000 # SPI clock set to 2000 kHz
spi.bpw = 8 # bits/word
spi.threewire = False
spi.lsbfirst = False
spi.mode = 1
spi.cshigh = False # chip select (active low)
spi.open(0, 0)
print("spi... msh=" + str(spi.msh))
gchannel = 0
buf0 = (7 << 3) | ((gchannel & 0x0f) >> 1) #(7<<3) for auto-2 mode
buf1 = (gchannel & 0x01) << 7
buf1 = buf1 | 0x40 #select 5v i/p range
while (self.running):
ret = spi.xfer2([buf0, buf1])
print("0x%x 0x%x" % (ret[0], ret[1]))
chanl = (ret[0] & 0xf0) >> 4
adcval = ((ret[0] & 0x0f) << 4) + ((ret[1] & 0xf0) >> 4)
print(" -> chanl=%d adcval=0x%x" % (chanl, adcval))
time.sleep(1)
def ini_levels():
check_ok = 0
update_data = 0x39
# spi.set_clock_hz(1000000)
# spi.set_mode(0)
# spi.set_bit_order(SPI.MSBFIRST)
SPI_PORT = 0
SPI_DEVICE = 0
# SPI setup
spi = SPI(0, 0) #/dev/spidev1.0
spi.msh = 100000 # SPI clock set to 100 kHz
spi.bpw = 8 # bits/word
spi.threewire = False
spi.lsbfirst = False
spi.mode = 0
spi.cshigh = False # ADS1248 chip select (active low)
# spi.open(0,0)
spi.open(SPI_PORT, SPI_DEVICE)
print "SPI port ", SPI_PORT, " ", SPI_DEVICE, " open"
#3V3 orange
#OM SPI TE ENABLEN
#config-pin P9.20 spi
#en da me alle pins
from Adafruit_BBIO.SPI import SPI
import Adafruit_BBIO.GPIO as GPIO
import time
spi = SPI(0, 0) #4 busses, this is bus 0
spi.msh = 10000 #Frequency
spi.bpw = 8 #bits per word
spi.cshigh = False #true means you select the chip, depends on the chip, here low means active, normally Low for IMU
spi.threewire = False #if it is true, you just read, otherwise you also send commands
spi.lsbfirst = False #Least significant bit first (left)
spi.open(0, 0) #open
#GPIO.setup("P8_11",GPIO.OUT)
#GPIO.output("P8_11",GPIO.HIGH)
try:
while True:
res = spi.xfer2([0xFFFF, 0xFFFF]) #deliver two bytes
res1 = spi.readbytes(2) #Read 2 bytes
angle = (res1[0] << 8) | res1[1] #merge leftbyte and rightbyte
angle1 = angle & 0x3FFF #move the first two bits
angle2 = float(angle1) / 16363 * 360
print("data is")
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)
