medium10 pts · first answer countsfirmwareclockshardware-debugging

Board stuck at clock setup

Some boards from a new batch hang at boot. Halting shows the code looping on "while (!(RCC->CR & RCC_CR_HSERDY));". What is the likely cause and good practice?

A.The crystal fails to start; check load caps, add a timeoutB.The flash is too slow; increase the flash wait statesC.The PLL locks too quickly; add a delay before the loopD.The debugger is holding the oscillator line low

Discussion 0

Join free to post in the discussion.

Board stuck at clock setup

Discussion 0

Related questions