def test_setClock(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
banger.setClock()
self.assertEqual([(ENABLE_PIN, tester.LOW), (ENABLE_PIN, tester.HIGH),
(CLK_PIN, tester.HIGH)], tester.pinActions)
def test_clearMosi(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
banger.clearMosi()
self.assertEqual([(ENABLE_PIN, tester.LOW), (ENABLE_PIN, tester.HIGH),
(MOSI_PIN, tester.LOW)], tester.pinActions)
def test_setup(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
self.assertEqual(tester.BOARD, tester.mode)
self.assertEqual(tester.OUT, tester.pinModes[CLK_PIN])
self.assertEqual(tester.IN, tester.pinModes[MISO_PIN])
self.assertEqual(tester.OUT, tester.pinModes[MOSI_PIN])
self.assertEqual(tester.OUT, tester.pinModes[ENABLE_PIN])
def test_waitForReadySignal(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
tester.pinSettings[MISO_PIN] = [tester.LOW]
with self.assertRaises(bitbang.SendByteTimeoutException):
banger.sendByte(0x00)
tester.pinSettings[MISO_PIN] = [tester.HIGH]
banger.sendByte(0x00)
def test_receiveByte(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
tester.pinSettings[MISO_PIN] = [
tester.LOW, tester.HIGH, tester.LOW, tester.HIGH, tester.LOW,
tester.HIGH, tester.LOW, tester.HIGH
]
result = banger.receiveByte()
self.assertEqual(0x55, result)
def test_sendByteLastBit(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
banger.sendByte(0x01)
c = CLK_PIN
m = MOSI_PIN
e = ENABLE_PIN
h = tester.HIGH
l = tester.LOW
self.assertEqual([(e, l), (e, h), (c, l), (m, l), (c, h), (c, l),
(m, l), (c, h), (c, l), (m, l), (c, h), (c, l),
(m, l), (c, h), (c, l), (m, l), (c, h), (c, l),
(m, l), (c, h), (c, l), (m, l), (c, h), (c, l),
(m, h), (c, h), (c, l)], tester.pinActions)
def __init__(self,
addressBytes,
clockPin,
misoPin,
mosiPin,
enablePin,
bitBanger=None):
self.addressBytes = addressBytes
if (bitBanger == None):
bitBanger = bitbang.BitBanger(clockPin, misoPin, mosiPin,
enablePin)
self.bitBanger = bitBanger
# wait a bit for the PIC to cycle up
for x in range(1000000):
pass
def test_getMiso(self):
tester = BbTester()
banger = bitbang.BitBanger(CLK_PIN, MISO_PIN, MOSI_PIN, ENABLE_PIN,
tester)
tester.pinSettings[MISO_PIN] = [tester.HIGH]
self.assertEqual(tester.HIGH, banger.getMiso())