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15 lines
667 B
Markdown
15 lines
667 B
Markdown
2 years ago
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# 0. 80MHz system clock
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This example shows how to set up the STM32 microcontroller to execute at its faster clock speed of 80MHz.
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Achieving this speed requires two things:
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1. Setting up the Phase-Locked Loop (PLL) to multiply a source clock up to 80MHz.
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2. Configuring flash wait-states to ensure that the processor does not execute faster than instructions can be fetched.
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Once the system clock is set to 80MHz, the Microcontroller Clock Output (MCO) is configured to output the system clock
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over pin PA8. This output can be viewed with an oscilloscope to confirm the clock's speed.
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See `main.c` for comments describing the configuration steps in more detail.
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