LTC4150 Coulomb counter

Hello,

I was just wondering if anyone here has used the LTC4150 chip as a coulomb counter for an active lipo battery indicator.

I have designed a PCB but i cant seem to get any reading out of the chip on my serial monitor. I have attached my results and schematics below in case anyone has an opinion on whether I have done something wrong with my design.

Thank you

png2pdf.pdf (154 KB)

Schematic_Base Model_Sheet_1_20200414165836 (2).pdf (197 KB)