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STM32CubeMX 4.25 PLL Mux Error "PLL Mux should have HSE as input"

Question asked by John F. on Apr 5, 2018
Latest reply on Apr 5, 2018 by John F.

Using STM32CubeMX 4.25 to configure clock for STM32F767ZI I get PLL Mux Error, "PLL Mux should have HSE as input" when I choose HSI as clock source. The external clock pins are disabled in the "Pinout" configuration. The PLL N P Q R values are all good and throw no errors but HSI radio button selection in PLL Source Mux is highlighted with a red square and displays the error message when I mouse hover over. The clock wizard cannot fix it.


Anyone know why please and how to fix this? The ioc file is attached.


Thanks, John F.