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added some thing (again) for the clock (see TODO)(broken)
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@ -35,6 +35,27 @@ void init_clock(){
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// Now we can enable PLL
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// Now we can enable PLL
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RCC->CR |= RCC_CR_PLLON;
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RCC->CR |= RCC_CR_PLLON;
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// Enable Overdrive (idk what it is) and wait
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PWR->CR1 |= PWR_CR1_ODEN;
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while (!(PWR->CSR1 & PWR_CSR1_ODRDY)) {};
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// Same for ODSWEN
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PWR->CR1 |= PWR_CR1_ODSWEN;
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while (!(PWR->CSR1 & PWR_CSR1_ODSWRDY)) {};
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// Select voltage scale (scale 1 = 0b11)
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PWR->CR1 |= 0b00000000000000001100000000000000;
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while (!(PWR->CSR1 & PWR_CSR1_VOSRDY)) {};
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// Set Latency to 7 wait state (paragraph from Upsilon)
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// Enable Prefetching, and ART
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/* After reset the Flash runs as fast as the CPU. When we clock the CPU faster
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* the flash memory cannot follow and therefore flash memory accesses need to
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* wait a little bit.
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* The spec tells us that at 2.8V and over 210MHz the flash expects 7 WS. */
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// clear in first place
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FLASH->ACR &= ~(0b0000 0000 0000 0000
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0000 0011 0000 1111);
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}
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}
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/* OLD
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/* OLD
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