# HG changeset patch # User Mychaela Falconia # Date 1514659876 0 # Node ID 84fbaf39686a244cf34a21aba171319aa9a12ff0 # Parent bcc8f3cf1bc13df9aab35b778827cfec4e07be86 charging/c1xx/standard: created diff -r bcc8f3cf1bc1 -r 84fbaf39686a charging/c1xx/standard --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/charging/c1xx/standard Sat Dec 30 18:51:16 2017 +0000 @@ -0,0 +1,56 @@ +# This is the "standard" charging config for Mot C1xx phones running +# FreeCalypso fw. The key points are: +# +# 1) The battery is charged to the full 4.2 V, not a lower voltage, +# for traditional mobile phone usage patterns in which the user charges +# the battery fully before going out. +# +# 2) The start threshold is set fairly high on the reasoning that if +# the user connects the charging power source (which is not USB and thus +# not required for computer connection), it means that she actually intends +# to charge the battery, but it is set to 4100 mV instead of "always" +# so that if the battery is really full, an explicit AT@CHG=1 command +# or a future UI equivalent will be needed to force a charging start. +# +# 3) The restart threshold is a reasonable setting so if the phone is left +# plugged into the charger for a long time, the user won't be surprised +# with a battery that has run down significantly after the completion +# of the initial charging cycle. + +start-threshold 4100 # mV +restart-threshold 3900 # mV + +# Constant Voltage charging parameters mostly copied from Pirelli + +ci2cv-threshold 4245 # mV, lowered from Pirelli's 4250 +cv-initial-setpoint 4220 # mV +cv-ctrl-loop-high 4236 # mV +cv-ctrl-loop-low 4170 # mV, bumped up from Pirelli's 4160 +cv-dac-max-incr 8 # DAC units +cv-dac-max-decr 50 # DAC units +cv-ctrl-loop-sample-count 6 # our logic is simpler than Pirelli's +overvoltage 4280 # mV, bumped up from Pirelli's 4270 + +# For the current settings, keep in mind that C1xx phones use a current +# measurement resistor of 0.15R instead of TI's "canonical" value of 0.20R, +# hence the conversion factor between mA and ADC/DAC numbers changes +# accordingly. The CI current setting is based on what Motorola's fw +# has been observed to set, but the end current setting is our own, +# chosen empirically. + +ci-current 280 # DAC units, about 320 mA +end-current 60 # ADC units, about 68 mA +ichg-max-spike 26 # ADC units, about 30 mA +ichg-low-samples-needed 30 # sample count + +# The apppropriate charging time limit and restart delay have yet to be +# determined; for now we give it a super-generous 6 h charging time limit +# and 2 h restart delay. + +charging-time-limit 21600 +restart-delay 7200 + +# Motorola's fw does not seem to use the I2V offset mechanism, +# but we use the same setting as Pirelli. + +i2v-offset 0x18 # register setting