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Output error from expected correctly, - means low

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Aadi Desai 2023-05-30 14:15:44 +01:00
parent bbf9bf3f0c
commit 550827217c
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1 changed files with 2 additions and 3 deletions
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5
test_saw2sin.py
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@ -11,11 +11,10 @@ async def test_new_cordic(dut):
dut.i_saw.value = cycle dut.i_saw.value = cycle
await Timer(1, units='ps') await Timer(1, units='ps')
e_sin = 32768 * (sin((cycle * pi) / (2**15)) + 1) e_sin = 32768 * (sin((cycle * pi) / (2**15)) + 1)
error = e_sin - dut.o_sin.value error = float(dut.o_sin.value) - e_sin
if abs(error) > 2: if abs(error) > 2:
dut._log.info("cycle %5d, rev %d, inv %d, expected %5d, got %5d, error %d" dut._log.info("cycle %5d, rev %d, inv %d, expected %5d, got %5d, error %+.6f"
% (cycle, (cycle & 0x4000) != 0, (cycle & 0x8000) != 0, e_sin, dut.o_sin.value, error)) % (cycle, (cycle & 0x4000) != 0, (cycle & 0x8000) != 0, e_sin, dut.o_sin.value, error))
diff += abs(error) diff += abs(error)
dut._log.info("Testbench finished, average error %f" % (diff / 65536)) dut._log.info("Testbench finished, average error %f" % (diff / 65536))