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STM32f429I LTDC Clock Value Problem

Question asked by kasapoglu.orkun on May 2, 2016
Latest reply on May 2, 2016 by FTITI.Walid
Hi. I'm trying to set LTDC clock to 54MHz but I am measuring 385.7kHz instead of the true value with oscilloscope. Scope has 350 MHz bandwidth.

I'm configuring the PLLSAI with std_periph libraries;

RCC_PLLSAIConfig(432, 2, 2);
RCC_LTDCCLKDivConfig(RCC_PLLSAIDivR_Div2);

RCC_PLLSAICmd(ENABLE);

while(RCC_GetFlagStatus(RCC_FLAG_PLLSAIRDY) == RESET) {}

Am I missing something?

Thanks.

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