Strange... maybe it was an initialisation issue, although I don't think I've tweaked anything around there :(
My guess is that it's still trying to use the oscillator. It's probably this helpful line that should maybe be:
RCC->CR &= ~((uint32_t)RCC_CR_HSEON); // disable HSE
@Gordon started
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Strange... maybe it was an initialisation issue, although I don't think I've tweaked anything around there :(
My guess is that it's still trying to use the oscillator. It's probably this helpful line that should maybe be: