def setFreq(self, freq): # Hz
if FREQ_MIN <= float(freq) <= FREQ_MAX:
command_l, adjustedFreq = self.formatCommand("freq")
#print "Channel %d frequency %f adjusted to %f" % (self.channel, freq, adjustedFreq)
x24bitParallelPort.send(command_l)
else:
print "Freqency out of range (0Hz-262,144Hz)", freq
def sendStateToFPGA(self):
channel_bin_str = '{0:05b}'.format(self.channel)[::-1]
osc_bin_str = ('{0:028b}'.format(int(FPGA_CLOCK_SPEED_DIVIDED/self.freq)))[::-1]
#print "period: ", int(FPGA_CLOCK_SPEED_DIVIDED/self.freq)
#print "binary: ", osc_bin_str
freq_msb = osc_bin_str[0:17]
freq_lsb = osc_bin_str[17:28]
dutyCycle_bin_str = "11111111111" if self.dutyCycle > 99 else '{0:011b}'.format(int((self.dutyCycle*0.32)+0.5))[::-1]
modeSelector_bin_str = 0
x24bitParallelPort.send(list("%s%s%s"%(modeSelector_bin_str,channel_bin_str,freq_msb)))
#print "word 1 sent: %s%s%s" % (modeSelector_bin_str,channel_bin_str,freq_msb)
modeSelector_bin_str = 1
x24bitParallelPort.send(list("%s%s%s"%(modeSelector_bin_str,freq_lsb, dutyCycle_bin_str)))
def _sendToFPGA(channel, dutyCycle, freq):
fpgaCycles = _convertFreqToFpga(channels[channel]["freq"])
dutyCycle127 = _convertPercentTo7Bit(channels[channel]["dutyCycle"])
channel_ba = _dec2bin(channel, 5)
dutyCycle_ba = _dec2bin(dutyCycle127, 7)
fpgaCycles_ba = _dec2bin(fpgaCycles, 34)
# Assuming MSB
frame_ba = "%s%s%s" % (channel_ba, dutyCycle_ba, fpgaCycles_ba)
word1 = "%s%s" % (frame_ba[0:23], "0")
word2 = "%s%s" % (frame_ba[23:46], "1")
#print channel, dutyCycle, freq
print channel_ba, dutyCycle_ba, fpgaCycles_ba
print word1, word2
x24bitParallelPort.send(word1)
x24bitParallelPort.send(word2)
def sendStateToFPGA(self, freq_b, ds_b):
channel_bin_str = '{0:05b}'.format(self.channel)[::-1]
if freq_b:
modeSelector_bin_str = "0"
osc_bin_str = ('{0:017b}'.format(
int(FPGA_CLOCK_SPEED_DIVIDED / self.freq)))[::-1]
x24bitParallelPort.send(
list("%s%s%s" % (modeSelector_bin_str, channel_bin_str,
osc_bin_str)))
if ds_b:
modeSelector_bin_str = "1"
dutyCycle_bin_str = "000011" if self.dutyCycle > 99 else '{0:06b}'.format(
int(max(0,
int(self.dutyCycle * 0.32) - 1)))[::-1]
padding_bin_str = "000000000000"
x24bitParallelPort.send(
list("%s%s%s%s" %
(modeSelector_bin_str, channel_bin_str,
dutyCycle_bin_str, padding_bin_str)))
import sys
import x24bitParallelPort
while True:
sys.stdout.write("please input a 23-bit binary number")
input_raw = sys.stdin.readline()
input_trimmed = input_raw[:-1]
#input_padded = '{0:03d}'.format(4)
if len(input_trimmed) != 23:
print "input is not 23 bits. try again"
else:
x24bitParallelPort.send(list(input_trimmed))
def setPwm(self, pwm_f): # float%
if 0.0 <= pwm_f <= 100.0:
command_l = self.formatCommand("pwm")
x24bitParallelPort.send(command_l)
else:
print "PWM out of range (0.0-100.0)", pwm_f