SafetyProcessorCode

IDE: MCUXpresso (Download link)

Processor: LPC845

SDK: SDK_2.x_LPC845BREAKOUT

Pins:

SCL1: BQ24770

• SDA: P0_08
• SCL: P0_09

SCL2: FUSB302

• SDA: P0_10
• SCL: P0_11

SCL3: BQ76925

• SDA: P0_30
• SCL: P0_31

Buttons

• Power/Wakeup: P0_04

OUTPUT

• 6v En: P1_00 - Green LED
• 3v En: P1_01 - Blue LED

Code Flow Outline:

Init:

• Enable 3V and 6V
• Setup and init: BQ76925, BQ24770 & FUSB302
• Start balancing on BQ76925

running in loop

• Check FUSB302 for power connected and do nothing else until it is
• When power connected start charging, stop on power disconnect

non loop code (interrupt based)

• when power is pressed, disable 3v & 6v
• deep sleep mcu.

on wakeup

• run init procedure