DC2259(LTC6811-1) going generic with regular Arduino Uno?

Hi,

You can find all details about DC2259 on our website here.

You can check the demo manual and schematic, SPI connections are available on J2 connector.

Dears,

Thank you for the informative feedback. 

I'm trying to connect DC2259(LTC6811-1) to Arduino Mega 2560. I followed the same instructions here: https://www.analog.com/en/technical-articles/going-generic.html

However, the second part related to (demo_board_connected = discover_demo_board(demo_name); //!Checks if correct demo board is connected.) is not availble in DC2026C LTSkectchbook - Part Number - 6000 - 6811 - DC2259 Arduino code. So, i skipped it and only commented out quikeval_SPI_connect().

I still receive the message; 'PEC Error was detected in the received data'. 

I have used the SPI connection available in J1. The connection was established as follows:

J1 Connector -> Arduino Mega 2560 pin

MISO -> Pin 50 (Pulled high via 1k resistor)

MOSI -> Pin 51 (Pulled high via 1k resistor)

SCK -> Pin 52 

CS -> Pin 7 (header code was adjusted accordingly)

Ground pins -> all connected to a common GND

Vin -> 5V output

The voltage across VREG is around 5.2 - 5.4 V.

Your support is appreciated in the following:

1- Why I'm I receiving the message 'PEC Error was detected in the received data'

2- There is no signal on the line MISO

3- inaccurate voltage readings are 6.2 for all cells 

Hi!

No activity on MISO would be read as 0xFFFF... or just a constant high signal. This will not pass the PEC and you will receive PEC error. In such case voltages read would be 6.5535 or 0xFFFF*100uV.

Please go through https://ez.analog.com/power/battery-management-system/f/qa/166926/communication-issue-with-ltc6813

If this resolves any of your issues.