[SC8905 EVM Evaluation] + I2C communication between MCU and SC8905

hujj

[SC8905 EVM Evaluation] + I2C communication between MCU and SC8905 [Copy link]

 

After repeated tests, the I2C communication test between the microcontroller and the SC8905 evaluation board has been completely successful. I use the microcontroller to change the VBUS output voltage every 2 seconds, and change it in the 4V and 6V gears according to the task given to me, that is, change the VBUS output voltage every 2 seconds. The reason for choosing 2 seconds as a cycle is mainly because if the time is too short, my digital multimeter may not be able to keep up, and if the time is too long, it may not be intuitive. For the I2C communication code, please see another post of mine: https://en.eeworld.com/bbs/thread-1142391-1-1.html

I defined an array as a mirror of the SC8905 registers, and wrote all the parameters after modifying them (8 readable and writable registers). Here are the photos of the test:

VBAT input 5V, VBUS output 4V:

VBAT input 5V, VBUS output 6:

Here is the animation:

hujj

After the I2C communication test is successful, the next step is to use this power control board.

skyfreejack

Sure, is there anyone who wants to learn JTAG?

okhxyyo

Southchip SC8905 EVM Review

Summary post: https://en.eeworld.com/bbs/thread-1140004-1-1.html