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Updated firware to contain only 1 endpoint. Created a global data buffer to hold the ADC EP1 IN data. This increased performance from 7.5 KBps to 150+ KBps.

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This commit is contained in:
Mickey Malone
2021-02-10 07:26:40 -06:00
parent b1eb887656
commit 55de2de8c7
4 changed files with 56 additions and 98 deletions
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11
firmware/pico_rng_test.py
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@@ -21,11 +21,8 @@ cfg = rng.get_active_configuration()
# Get the only interface of our device
intf = cfg.interfaces()[0]
# Get the endpoints
endpts = intf.endpoints()
# Get the IN or Host RCV Device TX endpoint
endpts_in = endpts[0] if endpts[0].bEndpointAddress == usb.util.ENDPOINT_IN else endpts[1]
# Get the endpoint
endpt = intf.endpoints()[0]
# Time tracking for bits/s
count = 0
@@ -34,11 +31,11 @@ start_time = (int(time.time()) - 1)
if args.performance:
while True:
try:
from_device = endpts_in.read(endpts_in.wMaxPacketSize, 500)
from_device = endpt.read(endpt.wMaxPacketSize, 500)
count = count+1
print(":".join("{:02x}".format(b) for b in from_device), end="")
print(" KBps {0:.2f}".format((int((count * 64) / (int(time.time()) - start_time))) / 1024 ))
except KeyboardInterrupt:
exit(0)
else:
print(":".join("{:02x}".format(b) for b in endpts_in.read(endpts_in.wMaxPacketSize, 500)))
print(":".join("{:02x}".format(b) for b in endpt.read(endpt.wMaxPacketSize, 500)))