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implement first prototype of the protocol

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This commit is contained in:
Pavol Rusnak 2011-04-13 04:50:33 +02:00
parent f30c462567
commit 4fb8173118
2 changed files with 39 additions and 7 deletions
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44
software/device.py
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@ -5,7 +5,9 @@ class Device:
VENDORID = 0x1fc9
PRODUCTID = 0x1337
INSIZE = 64
OUTSIZE = 2
OUTSIZE = 64
polling = 0
def __init__(self):
usbdev = usb.core.find(idVendor = self.VENDORID, idProduct = self.PRODUCTID)
@ -23,10 +25,40 @@ class Device:
custom_match = lambda e: \
usb.util.endpoint_direction(e.bEndpointAddress) == usb.util.ENDPOINT_IN)
# TODO: PWM
# TODO: SPI
# TODO: SET/CLEAR PINS
# sets pwm (which=1,2), (percent=16bit)
def pwm(self, which, percent):
self.epo.write('p' + chr(which) + chr(percent & 0xff) + chr(percent >> 8))
# sets dds (wave=square,sine,saw1,saw2), (freq=24bit)
def dds(self, wave, freq):
self.epo.write('d' + chr(wave) + chr(freq & 0xff) + chr((freq >> 8) & 0xff) + chr((freq >> 16) & 0xff))
# set opamp (which=1,2), (chan=6), (mult=16bit?)
def opamp(self, which, chan, mult):
self.epo.write('o' + chr(which) + chr(chan) + chr(mult & 0xff) + chr(percent >> 8))
# set switch (which=1..8), state=(0,1)
def switch(self, which, state):
self.epo.write('s' + chr(which) + (state and '\x01' or '\x00'))
# set all switches (states=8bit)
def switches(self, states):
self.epo.write('S' + chr(states))
# clear output (which=8bit)
def clrout(self, which):
self.epo.write('o' + chr(which))
# set output (which=8bit)
def setout(self, which):
self.epo.write('O' + chr(which))
def pollfreq(self, freq):
self.polling = freq
def state(self):
# TODO: format?
return self.epi.read(self.INSIZE)
# 4x AD (16 bits) + 8x I
i = self.epi.read(self.INSIZE)
return (i[0] + i[1]<<8, i[2] + i[3]<<8, i[4] + i[5]<<8, i[6] + i[7]<<8,
i[8] & 0x01, i[8] & 0x02, i[8] & 0x04, i[8] & 0x08,
i[8] & 0x10, i[8] & 0x20, i[8] & 0x40, i[8] & 0x80)