def test_ft232h(self):
with open('pyftdi/tests/resources/ft232h_x2.yaml', 'rb') as yfp:
self.loader.load(yfp)
eeprom = FtdiEeprom()
eeprom.open('ftdi://::FT1ABC1/1', ignore=True)
eeprom.erase()
eeprom.initialize()
# default EEPROM config does not have any CBUS configured as GPIO
self.assertEqual(eeprom.cbus_pins, [])
self.assertEqual(eeprom.cbus_mask, 0)
eeprom.set_property('cbus_func_6', 'gpio')
eeprom.set_property('cbus_func_9', 'gpio')
# not yet committed
self.assertEqual(eeprom.cbus_pins, [])
self.assertEqual(eeprom.cbus_mask, 0)
eeprom.sync()
# committed
self.assertEqual(eeprom.cbus_pins, [6, 9])
self.assertEqual(eeprom.cbus_mask, 0xA)
eeprom.set_property('cbus_func_5', 'gpio')
eeprom.set_property('cbus_func_8', 'gpio')
eeprom.sync()
self.assertEqual(eeprom.cbus_pins, [5, 6, 8, 9])
self.assertEqual(eeprom.cbus_mask, 0xF)
# pin1 and pin3 is not configurable as GPIO
self.assertRaises(ValueError, eeprom.set_property, 'cbus_func_1',
'gpio')
self.assertRaises(ValueError, eeprom.set_property, 'cbus_func_3',
'gpio')
eeprom.close()
def test_compute_size_does_not_mirror(self):
"""Verify the eeproms internal _compute_size method returns the correct
bool value when it detects no mirroring.
"""
eeprom = FtdiEeprom()
eeprom.open(self.url, ignore=True)
_, mirrored = eeprom._compute_size([])
self.assertFalse(mirrored)
eeprom.close()
eeprom = FtdiEeprom()
eeprom.open(self.url, ignore=False)
_, mirrored = eeprom._compute_size([])
self.assertFalse(mirrored)
eeprom.close()
def test_mirror_properties(self):
"""Check FtdiEeprom properties are accurate for a device that can
mirror
"""
# properties should work regardless of if the mirror option is set
# or not
eeprom = FtdiEeprom()
eeprom.open(self.url, ignore=True)
self.assertTrue(eeprom.has_mirroring)
self.assertEqual(eeprom.size // 2, eeprom.mirror_sector)
eeprom.close()
mirrored_eeprom = FtdiEeprom()
mirrored_eeprom.enable_mirroring(True)
mirrored_eeprom.open(self.url, ignore=True)
self.assertTrue(mirrored_eeprom.has_mirroring)
self.assertEqual(mirrored_eeprom.size // 2,
mirrored_eeprom.mirror_sector)
mirrored_eeprom.close()
def test_mirror_properties(self):
"""Check FtdiEeprom properties are accurate for a device that can not
mirror.
"""
# properties should work regardless of if the mirror option is set
# or not
eeprom = FtdiEeprom()
eeprom.open(self.url, ignore=True)
self.assertFalse(eeprom.has_mirroring)
with self.assertRaises(FtdiError):
eeprom.mirror_sector
eeprom.close()
# even if mirroring is enabled, should still stay false
mirrored_eeprom = FtdiEeprom()
mirrored_eeprom.enable_mirroring(True)
mirrored_eeprom.open(self.url, ignore=True)
self.assertFalse(mirrored_eeprom.has_mirroring)
with self.assertRaises(FtdiError):
eeprom.mirror_sector
mirrored_eeprom.close()
def test_ft230x(self):
with open('pyftdi/tests/resources/ft230x.yaml', 'rb') as yfp:
self.loader.load(yfp)
eeprom = FtdiEeprom()
eeprom.open('ftdi:///1')
# default EEPROM config does not have any CBUS configured as GPIO
self.assertEqual(eeprom.cbus_pins, [])
self.assertEqual(eeprom.cbus_mask, 0)
# enable CBUS1 and CBUS3 as GPIO
eeprom.set_property('cbus_func_1', 'gpio')
eeprom.set_property('cbus_func_3', 'gpio')
eeprom.sync()
self.assertEqual(eeprom.cbus_pins, [1, 3])
self.assertEqual(eeprom.cbus_mask, 0xA)
# enable CBUS0 and CBUS2 as GPIO
eeprom.set_property('cbus_func_0', 'gpio')
eeprom.set_property('cbus_func_2', 'gpio')
# not yet committed
self.assertEqual(eeprom.cbus_pins, [1, 3])
self.assertEqual(eeprom.cbus_mask, 0xA)
eeprom.sync()
# committed
self.assertEqual(eeprom.cbus_pins, [0, 1, 2, 3])
self.assertEqual(eeprom.cbus_mask, 0xF)
# invalid CBUS pin
self.assertRaises(ValueError, eeprom.set_property,
'cbus_func_4', 'gpio')
# invalid pin function
self.assertRaises(ValueError, eeprom.set_property,
'cbus_func_0', 'gpio_')
# invalid pin
self.assertRaises(ValueError, eeprom.set_property,
'cbus_func', 'gpio')
# valid alternative mode
eeprom.set_property('cbus_func_0', 'txled')
eeprom.set_property('cbus_func_1', 'rxled')
eeprom.sync()
self.assertEqual(eeprom.cbus_pins, [2, 3])
self.assertEqual(eeprom.cbus_mask, 0xC)
eeprom.close()
