Merge pull request #65 from bassettb/fix-spi-closed-issue

Fix for SPI closed issue

RaspberryPi_JetsonNano/python/examples/epd_2in13_V2_test.py

@@ -86,7 +86,6 @@ try:
     logging.info("Goto Sleep...")
     epd.sleep()
     time.sleep(3)
-    epd.Dev_exit()
         
 except IOError as e:
     logging.info(e)

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epd2in13_V2.py

@@ -315,8 +315,6 @@ class EPD:
         self.send_command(0x10) #enter deep sleep
         self.send_data(0x03)
         epdconfig.delay_ms(100)
-
-    def Dev_exit(self):
         epdconfig.module_exit()
 
 ### END OF FILE ###

RaspberryPi_JetsonNano/python/lib/waveshare_epd/epdconfig.py

@@ -45,9 +45,7 @@ class RaspberryPi:
         import RPi.GPIO
 
         self.GPIO = RPi.GPIO
-
-        # SPI device, bus = 0, device = 0
-        self.SPI = spidev.SpiDev(0, 0)
+        self.SPI = spidev.SpiDev()
 
     def digital_write(self, pin, value):
         self.GPIO.output(pin, value)
@@ -71,6 +69,9 @@ class RaspberryPi:
         self.GPIO.setup(self.DC_PIN, self.GPIO.OUT)
         self.GPIO.setup(self.CS_PIN, self.GPIO.OUT)
         self.GPIO.setup(self.BUSY_PIN, self.GPIO.IN)
+
+        # SPI device, bus = 0, device = 0
+        self.SPI.open(0, 0)
         self.SPI.max_speed_hz = 4000000
         self.SPI.mode = 0b00
         return 0