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from simtestutil import SimTestLoader
import ext_int0
class TestCase(ext_int0.TestCaseBase):
portmask = {
"atmega48": 0x7f, # only 7 bit at port C
"attiny2313": 0xff,
}
bit0name = {
"atmega48": "C0",
"attiny2313": "B0",
}
bit3name = {
"atmega48": "C3",
"attiny2313": "B3",
}
def setControl(self, ctrl):
self.handshake(4, ctrl)
def assertPortValue(self, val):
val = val & self.portmask[self.processorName]
v = self.handshake(5)
self.assertEqual(v, val, "port input value wrong: got=%d, exp=%d" % (v, val))
def test_00(self):
"""check interrupt on any change"""
self.assertDevice()
self.assertStartTime()
# skip initialisation
self.assertInitDone()
# create Pin
p = ext_int0.XPin(self.dev, self.sim, self.bit0name[self.processorName])
# check port value
self.assertPortValue(0xff)
# ext pin = low
p.SetPin("L")
# mask only bit 0
self.setControl(1)
self.resetFlag()
self.enableIRQ()
# counter is 0?
self.assertCounter(0, 10000)
# ext pin = high
p.SetPin("H")
# counter is 1?
self.assertCounter(1, 20000)
# ext pin = low
p.SetPin("L")
# counter is 2?
self.assertCounter(2, 20000)
# ext pin = high
p.SetPin("H")
# counter is 3?
self.assertCounter(3, 20000)
def test_01(self):
"""check masking input bits"""
self.assertDevice()
self.assertStartTime()
# skip initialisation
self.assertInitDone()
# create Pin
p0 = ext_int0.XPin(self.dev, self.sim, self.bit0name[self.processorName])
p3 = ext_int0.XPin(self.dev, self.sim, self.bit3name[self.processorName])
# check port value
self.assertPortValue(0xff)
# ext pin 0 = low, pin 3 = high
p0.SetPin("L")
p3.SetPin("H")
# mask only bit 0
self.setControl(1)
self.resetFlag()
self.enableIRQ()
# counter is 0?
self.assertCounter(0, 10000)
# ext pin 3 = low
p3.SetPin("L")
# counter is 0?
self.assertCounter(0, 20000)
# ext pin 0 = high
p0.SetPin("H")
# counter is 1?
self.assertCounter(1, 20000)
# mask bit 0 and 3
self.setControl(9)
# ext pin 3 = high
p3.SetPin("H")
# counter is 3?
self.assertCounter(2, 20000)
def test_02(self):
"""check set and reset flag bit"""
self.assertDevice()
self.assertStartTime()
# skip initialisation
self.assertInitDone()
# create Pin
p0 = ext_int0.XPin(self.dev, self.sim, self.bit0name[self.processorName])
p3 = ext_int0.XPin(self.dev, self.sim, self.bit3name[self.processorName])
# check port value
self.assertPortValue(0xff)
# ext pin 0 = low, pin 3 = high
p0.SetPin("L")
p3.SetPin("H")
# check port value
self.assertPortValue(0xfe)
# mask bit 0 and 3
self.setControl(9)
self.resetFlag()
# check flag
self.assertFlagReg(False)
# ext pin 3 = low
p3.SetPin("L")
# check port value
self.assertPortValue(0xf6)
# check flag
self.assertFlagReg(True)
# reset flag
self.resetFlag()
self.assertFlagReg(False)
# mask bit 3
self.setControl(8)
# ext pin 0 = high
p0.SetPin("H")
# check port value
self.assertPortValue(0xf7)
# check flag
self.assertFlagReg(False)
if __name__ == '__main__':
from unittest import TextTestRunner
tests = SimTestLoader("ext_int2_atmega16.elf").loadTestsFromTestCase(TestCase)
TextTestRunner(verbosity = 2).run(tests)
# EOF
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