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https://github.com/Hack-a-Day/Vectorscope.git
synced 2024-11-24 05:55:00 +00:00
1e60147d84
if you haven't been playing around in user mode, interactively with just the raw vectorscope library, you really should!
29 lines
700 B
Python
29 lines
700 B
Python
from vectorscope import Vectorscope
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import random
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import time
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try:
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v = Vectorscope()
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except:
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## prevents OS 16 -- out of DMA error
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## but at the cost of resetting half the damn time
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print("No free DMAs. Resetting... try again in a sec.")
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machine.reset()
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top = const(-2**15)
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steps = const(1024)
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while True:
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## Pick a new horizontal start
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x = random.randint(-28000,28000)
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v.wave.constantX(x)
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## Drip drip drip
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for y in range(top, random.randint(0,32000), steps):
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## Wait for buffer to get empty
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while not v.wave.outBuffer_ready:
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pass
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v.wave.packY(range(y, y+steps, steps//256))
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v.wave.outBuffer_ready = False
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