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createTemperatureLookup.py: add --table option. 

This option is for multiple table chunks of ThermistorTable.h.
This commit is contained in:
David Forrest 2012-11-09 14:08:17 -05:00 committed by Markus Hitter
parent e65526f9da
commit ef6036c724
1 changed files with 25 additions and 8 deletions
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33
createTemperatureLookup.py
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@ -32,6 +32,7 @@ Options:
--min-adc=... the minimum ADC reading to use. --min-adc=... the minimum ADC reading to use.
--vadc=... ADC reference voltage (high leg of R2) same as Vcc --vadc=... ADC reference voltage (high leg of R2) same as Vcc
--vcc=... Voltage divider supply (high leg of R2) Unused --vcc=... Voltage divider supply (high leg of R2) Unused
--table Format data as one of an array of tables
It is suggested to generate more values than you need, and delete some of the ones in the ranges It is suggested to generate more values than you need, and delete some of the ones in the ranges
that aren't interesting. This will improve accuracy in the temperature ranges that are important to you. that aren't interesting. This will improve accuracy in the temperature ranges that are important to you.
@ -91,9 +92,13 @@ def main(argv):
vadc=5.0 vadc=5.0
vcc=5.0 vcc=5.0
mult=4 mult=4
table=False
try: try:
opts, args = getopt.getopt(argv, "h", ["help", "r0=", "t0=", "beta=", "r1=", "r2=", "max-adc=", "min-adc=", "num-temps=", "vcc=","vadc=","multiplier="]) opts, args = getopt.getopt(argv, "h", ["help", "r0=", "t0=", "beta=", "r1=",
"r2=", "max-adc=", "min-adc=",
"num-temps=", "vcc=", "vadc=",
"multiplier=", "table"])
except getopt.GetoptError: except getopt.GetoptError:
usage() usage()
sys.exit(2) sys.exit(2)
@ -124,6 +129,8 @@ def main(argv):
vcc = float(arg) vcc = float(arg)
elif opt == "--multiplier": elif opt == "--multiplier":
mult = float(arg) mult = float(arg)
elif opt == "--table":
table = True
if r1: if r1:
max_adc = int(1023. * r1 / (r1 + r2)) max_adc = int(1023. * r1 / (r1 + r2))
else: else:
@ -158,8 +165,8 @@ def main(argv):
print "// Since you'll have to do some testing to determine the correct temperature for your application anyway, you" print "// Since you'll have to do some testing to determine the correct temperature for your application anyway, you"
print "// may decide that the effort isn't worth it. Who cares if it's reporting the \"right\" temperature as long as it's" print "// may decide that the effort isn't worth it. Who cares if it's reporting the \"right\" temperature as long as it's"
print "// keeping the temperature steady enough to print, right?" print "// keeping the temperature steady enough to print, right?"
print "// Temp*%s table from https://github.com/triffid/Teacup_Firmware/blob/master/createTemperatureLookup.py" %mult print "// Temp*%s table from https://github.com/drf5n/Teacup_Firmware/blob/Gen7/createTemperatureLookup.py" %mult
print "// ./createTemperatureLookup.py --r0=%s --t0=%s --r1=%s --r2=%s --beta=%s --max-adc=%s --min_adc=%s --multiplier=%s --vadc=%s" % ( print "// ./createTemperatureLookup.py --r0=%s --t0=%s --r1=%s --r2=%s --beta=%s --max-adc=%s --min-adc=%s --multiplier=%s --vadc=%s" % (
r0, t0, r1, r2, beta, max_adc, min_adc, mult, vadc) r0, t0, r1, r2, beta, max_adc, min_adc, mult, vadc)
print "// r0: %s" % (r0) print "// r0: %s" % (r0)
print "// t0: %s" % (t0) print "// t0: %s" % (t0)
@ -169,9 +176,15 @@ def main(argv):
print "// min adc: %s at %s V" % (min_adc, min_adc*t.vadc/1024) print "// min adc: %s at %s V" % (min_adc, min_adc*t.vadc/1024)
print "// max adc: %s at %s V" % (max_adc, max_adc*t.vadc/1024) print "// max adc: %s at %s V" % (max_adc, max_adc*t.vadc/1024)
print "// ADC counts from {min} to {max} by {x}".format(min=min_adc, max=max_adc, x=increment) print "// ADC counts from {min} to {max} by {x}".format(min=min_adc, max=max_adc, x=increment)
print "#define NUMTEMPS %s" % (len(adcs)) if table == True:
print "// #define NUMTABLES 1 // These three lines open the temptable[NUMTABLES]... array"
print "// #define NUMTEMPS %s // ... " % (len(adcs))
print "// uint16_t temptable[NUMTABLES][NUMTEMPS][2] PROGMEM = { // ..."
print "{ //" + " Table 0 chunk for B={b}, R0={r0}, R1={r1}, R2={r2}, Vref={v}".format(par="{",b=beta,r0=r0,r1=r1,r2=r2,v=vadc)
else:
print "#define NUMTEMPS %s " % (len(adcs))
print "uint16_t temptable[NUMTEMPS][2] PROGMEM = {"
print "// {ADC, temp*%s }, // temp Rtherm Vtherm resolution power" % (mult) print "// {ADC, temp*%s }, // temp Rtherm Vtherm resolution power" % (mult)
print "uint16_t temptable[NUMTEMPS][2] PROGMEM = {"
counter = 0 counter = 0
for adc in adcs: for adc in adcs:
@ -183,8 +196,12 @@ def main(argv):
resolution = ( t.temp(adc-1)-t.temp(adc) if adc>1 else t.temp(adc) -t.temp(adc+1)) resolution = ( t.temp(adc-1)-t.temp(adc) if adc>1 else t.temp(adc) -t.temp(adc+1))
sep = (',' if counter != len(adcs) else ' ') sep = (',' if counter != len(adcs) else ' ')
print " {%4s, %6s}%s // %7.2f C, %7.0f Ohm, %0.3f V, %0.2f C/count, %0.2fmW" % (adc, int(t.temp(adc)*mult), sep,degC, resistance,vTherm,resolution,ptherm*1000) print " {%4s, %6s}%s // %7.2f C, %7.0f Ohm, %0.3f V, %0.2f C/count, %0.2fmW" % (adc, int(t.temp(adc)*mult), sep,degC, resistance,vTherm,resolution,ptherm*1000)
print "};" if table == False:
print "};"
else:
print '}, // remove comma for last table chunk'
print "// }; // Closure for the temptable[NUMTABLES] array"
def usage(): def usage():
print __doc__ print __doc__