Other Parts Discussed in Thread: BQSTUDIO
Question #1 - The bq34z100-G1 simplified implementation shown in Figure 14 of the datasheet is the case where the bq34z100-G1 is part of a pack.
In my system, I already have a pack, which contains the cells and all the protection circuitry, so I only see pos and neg terminals
I think in my system I should connect the SRP/SRN pins as shown in the attached file "FuelGaugeConnection-201708161342.pdf". I connected SRN to ground, because the current flow would not be correct if SRP is connected to ground. Figure 14 of the datasheet shows SRP connected to ground, which would not work in my system.
Any problem with connecting SRN to ground?
FuelGaugeConnection-201708161342.pdf
Question #2 - In reality, I connected SRN/SRP opposite what I showed above. I believe the part won't be damaged, but it will see charging as discharging, and visa-versa. Is there any way to "fix" this is software? Like maybe programming things with a reversed sign?
Question #3 - In these forums I saw a question about updating firmware in the bq34z100-G1. I did not see anything about this in the datasheet. Is this something I should design for, and if so, how do I do that?
.