Re-Programming the EEPROM of the TPS65218D0 Device
21
SLVUBH5 – October 2018
Copyright © 2018, Texas Instruments Incorporated
Software Instructions
Figure 22. Automatically Writing PASSWORD Sequence to Re-Program EEPROM
•
After the sequence is written to re-program the TPS65218D0 device EEPROM, there are a few
indicators that the EEPROM has been re-programmed correctly.
shows that the
PRGC
bit of
the
INT1
interrupt register (0x01) is set to 1b, the
EE
bit of the
STATUS
register (0x05) is set to 1b,
and the
PASSWORD
register (0x10) has retained the last byte (0xCE) of the special programming
sequence.
Figure 23. Interrupt for Successful Programming in INT1
NOTE:
If the voltage on the VIN_BIAS pin of the TPS65218D0 is less than or equal to 4.5V, this is
too low for re-programming the EEPROM and bit 5 (
VPRG
) of the
INT1
register will be set to
1b instead to indicate the voltage is too low for programming.
•
Now the BOOSTXL-TPS65218 board can be reset by moving S1 (labeled
MAIN PWR
) to the
GND
position and then moving it back to the
HI
position. Click
Read All
on the IPG-UI one more time to very
that the
EE
bit in the
STATUS
register (0x05) remains set to 1b, the
PASSWORD
register resets to
