phyduino_bsp/wiki/stusb4500_8h_source.html

#pragma once


#include <stdint.h>


namespace stusb4500 {


struct Profile {

    uint16_t millivolts;

    uint16_t milliamps;

};


constexpr uint8_t kMaxProfiles = 3;


bool begin();


bool setProfiles(const Profile* profiles, uint8_t count);


uint8_t getProfiles(Profile* out);


uint8_t boardProfiles(uint16_t max_millivolts, Profile* out);


bool renegotiate();


uint8_t contractPosition();


uint16_t contractMilliamps();


uint32_t vbusMillivolts();


}  // namespace stusb4500

stusb4500::begin
bool begin()
Sets up I2C1 and the control pins.

stusb4500::renegotiate
bool renegotiate()
Asks the charger to negotiate again with the current profiles.

stusb4500::getProfiles
uint8_t getProfiles(Profile *out)
Reads the active profiles.

stusb4500::contractPosition
uint8_t contractPosition()
Which charger offer is in use.

stusb4500::contractMilliamps
uint16_t contractMilliamps()
Operating current agreed in the current contract.

stusb4500::kMaxProfiles
constexpr uint8_t kMaxProfiles
Number of profiles the chip holds.
Definition stusb4500.h:44

stusb4500::boardProfiles
uint8_t boardProfiles(uint16_t max_millivolts, Profile *out)
The board's profiles for Tools > USB-PD Power.

stusb4500::setProfiles
bool setProfiles(const Profile *profiles, uint8_t count)
Loads 1-3 profiles and renegotiates if they differ from the current ones.

stusb4500::vbusMillivolts
uint32_t vbusMillivolts()
VBUS measured by the on-board ADC (MAX11635 channel 3).

stusb4500::Profile
One sink profile (PDO): a voltage the board accepts and the current it draws.
Definition stusb4500.h:38

stusb4500::Profile::milliamps
uint16_t milliamps
0-5000, 10 mA steps
Definition stusb4500.h:40

stusb4500::Profile::millivolts
uint16_t millivolts
5000-20000, 50 mV steps
Definition stusb4500.h:39