I am trying to test a Battery Management Board that uses the BQ76pl536a-q1 but we are having issues getting it to respond correctly.
I have verified the basics and reduced the code to the most basic commands.
Connected using 6S 18650 Lithium Batteries
The circuit is not using the south or North they are each tied to BAT+ and BAT-
LDO1 LOD2 LDOA is 4.74V
REG 50 is 4.99V
HSEL is going to BAT-
I ported the MSP430 code to Processing/Arduino and even tried sending the raw SPI commands and all the responses are 0XFF there is only one byte which I get a response 0x7F
Here is the code
Here is the SPI data between the Host and the BQ
Anybody have any idea what could be going on?