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Steps or procedure for SPI connection between AEK-POW-BMSCCTX and Raspberry pi. and further get cell parameters

Amal_V
Associate

Hi Team,

I am trying to communicate with my bms using raspberry pi.

I am using 8 cells in series connected to AEK-POW-BMSCCTX from C0 to C8 (from cell taps-P1 connecter). From the P4 side VIO-3V, Vdd- 5v, GND. I have also connected the MISO,MOSI,CS and CLK of the pi with corresponding pins in bms. Also TXEN-high, DIS-low, BNE-low.

Using this run a sample Spi code and there is no correct reply. I just need to know is this connections correct? any extra connections do i have to do?

Also after connections, D9,D8 and D2 leds of my bms is light up. When spi is activated D7 led should blink but not in my setup. I hope i get this problem solved

Thank You.

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