STWBC86 and STWLC38 Adaptive Charging Circuit

[JAKE2]

Hi,

We are currently testing the above chips.

I have a few questions:

1. Can I get information or documents stating how to download firmware using an external MCU and the reference design for that? We use 3.3V I2C communication, and I understand the ST chip uses 1.8V.

2. When I connect an MCU to the ST wireless charging chip, can I manually control the register to manipulate the total current? For example, by calculating the RX side's thermal condition and changing the TX DC MAX/TX DC PING registers in real-time when the chip gets hot to lower the temperature. Our design sometimes gets hot, causing the charging to turn on and off.

3. If number 2 is possible, should I connect the MCU to both TX and RX, or just one?

My question might not be very clear, so I am willing to accept an answer that is close enough. I would appreciate your response.

[JAKE2 · Accepted solution]

Because I have already completed FTP programming through the GUI.

I would like to know if I can control the registers, shown in black text on the GUI, using an external MCU and I2C communication?

26th - 12 - 24Edited)
Oh I found it, thanks.

https://github.com/STMicroelectronics/STWirelessCharging-C-Drivers