Hi,
I am working with a battery pack and the BMS. I have connected everything correctly to the board and after a first run everything seemed to work properly, the board was receiving commands from the MCU through the translator ISOSPI, and the green led blinked and remained on, signaling to be successfully in the 'normal' state. Later though, I had to disconnect the BMS from the battery pack. Therefore, I unplugged everything safely and separated the BMS from the batteries. Though, upon reconnecting the board to the batteries, the green led remained on for some seconds, and then went off, something that looked strange to me. Indeed, when I plugged everything back, MCU, translator and BMS, the BMS seemed to not respond anymore to the communication, and the green led D2 was always complitely off. I started to wonder why, and by looking on the datasheet I came to the conclusion that I might have entered the reset mode. Is it possible? I thought that could be either a sleep state or a reset state. However, regarding the sleep state the datasheet says: "only the communication wakeup source monitoring, low-speed oscillator for cyclic wakeup timer, and the corresponding reference and power supply are activated." If I have interpreted this correctly the "reference and power supply" are VTREF and VBAT. Therefore, I checked the voltage of both, and the VTREF was 0. I checked the voltages of the BMS both when plugged with translator and MCU, and alone. Consequently, I concluded that it is not the sleep mode, but it must be the reset state. Is my conclusion right? If not, why the board does not respond at all anymore? When in a reset state, how can I actually "rise the POR_STBY" to get to the sleep mode?
Thanks for your help in advance,
kind regards.
