The VIO setting [Port 0 Source PDO 2 Negtiated] of TPS65987DDH is not High.
The following two registers are to be changed.
・Transmit Source Capabilities(0x32)
Number of Bank 0 Change Source PDOs from "1" to "3".
・I/O Config(0x5C)
GPIO＃13:Disabled → Port 0 Source PDO 0 Negtiated
GPIO＃14:Port 0 Source PDO 0 Negtiated → Port 0 Source PDO 1 Negtiated
GPIO＃15:Port 0 Source PDO 1 Negtiated → Port 0 Source PDO 2 Negtiated
GPIO＃17:Port 0 Source PDO 2 Negtiated → Disabled
On the evaluation board, it was confirmed that the board automatically outputs 15V by changing the 0x32 register.
So, I changed the 0x5C register of the DCDC enable signal on the board I created to the above, but it does not work as expected.
Comparing the evaluation board with the communication section, it does not work because Hard Reset is executed.
Checking the GPIO with an oscilloscope, it remains Low. Reading the 0x5C register with I2C confirms that it is changed.
I am assuming that a hard reset is taking place because I am not getting 15V voltage, but I don't know why a hard reset is taking place, so please advise.
