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//volatile uint32_t F_BUS = 132000000; |
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//volatile uint32_t F_BUS = 132000000; |
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volatile uint32_t systick_millis_count = 0; |
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volatile uint32_t systick_millis_count = 0; |
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volatile uint32_t systick_cycle_count = 0; |
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volatile uint32_t systick_cycle_count = 0; |
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volatile uint32_t systick_safe_read; // micros() synchronization |
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uint32_t systick_safe_read; // micros() synchronization |
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// page 411 says "24 MHz XTALOSC can be the external clock source of SYSTICK" |
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// page 411 says "24 MHz XTALOSC can be the external clock source of SYSTICK" |
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// Testing shows the frequency is actually 100 kHz - but how? Did NXP really |
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// Testing shows the frequency is actually 100 kHz - but how? Did NXP really |