Hello,
we have one queston regarding BQ34Z100PWR-G1. After we assemble the battery pack, BQ takes quite some time to update the SOC value. We are reading the documentation and are a little confused. In some places it is written that after loading the image on the BQ it is necessary to set IT ENABLE:
2.1.1.15 IT ENABLE: 0x0021
Forces the fuel gauge to begin the Impedance Track algorithm, sets Bit 2 of UpdateStatus and causes
the [VOK] and [QEN] flags to be set in the CONTROL STATUS register. [VOK] is cleared if the voltages
are not suitable for a Qmax update. Once set, [QEN] cannot be cleared. This command is only available
when the fuel gauge is UNSEALED and is typically enabled at the last step of production after the system
test is completed.
The problem is that this bit is already set in the image and we see no point in setting it again. Can you please check what the procedure is after the first connection and what exactly needs to be done after that? The problem we want to solve is that the gauge gets the correct SOC information as soon as possible. Sometimes it's a few minutes, and sometimes it's a few hours, which is not ok for production.
