Add generic functions to write to or read from internal registers + use Wire1 #1
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The new provided functions allow to use from the sketch:
PMIC.writePMICreg(Register const reg_addr, uint8_t val)uint8_t regVal = PF1550.readPMICreg(Register const reg_addr)PF1550.setPMICbit(Register const reg_addr, uint8_t posBit)They can be tested using the provided example "ReadWriteRegs.ino".
The read function has been used to monitor some PMIC register from the fuel gauge library Arduino_MAX1726.
Communication goes over I2C on Wire1 (pin PB7 and PB8).
Debug capability has been added with the function
PF1550.debug(Stream& stream)which takes as argument the Serial interface on which the user wants to print the internal debug messages.