Code: Select all

import spidev as SPI
import RPi.GPIO as GPIO
CS = 24
def spi_write(register, data):
 GPIO.output(CS, GPIO.LOW)
 resp = spi.xfer2([register, data], 2000000)
 
 GPIO.output(CS, GPIO.HIGH)
def spi_read(register):
 GPIO.output(CS, GPIO.LOW)
 resp = spi.xfer2([register | 0x80, 0], 2000000)
 
 GPIO.output(CS, GPIO.HIGH)
 
 return resp[1]
 
try:
 spi = SPI.SpiDev()
 spi.open(0, 0)
 
 GPIO.setmode(GPIO.BOARD) 
 GPIO.setup(CS, GPIO.OUT, GPIO.HIGH)
 
 spi_write(0x0B, 0)
 
 for d in [0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x20, 0x21, 0x22, 0x23, 0x24, 0x25]:
 resp = spi_read(d)
 print (resp)
 spi_write(0x0B, 1)
 
except Exception as x:
 print (x)
#GPIO.cleanup()
spi.close()