uint32_t serial_get_clock(void) { uint32_t clock_freq; /* We assume default PLL and divider settings, and the only variable * from application is use PLL3 source or OSC source */ if (CLOCK_GetMux(kCLOCK_UartMux) == 0) /* PLL3 div6 80M */ { clock_freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); } else { clock_freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); } return clock_freq; }
/* Get debug console frequency. */ uint32_t GetUartSrcFreq(void) { uint32_t freq; /* To make it simple, we assume default PLL and divider settings, and the only variable from application is use PLL3 source or OSC source */ if (CLOCK_GetMux(kCLOCK_UartMux) == 0) /* PLL3 div6 80M */ { freq = (CLOCK_GetPllFreq(kCLOCK_PllUsb1) / 6U) / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); } else { freq = CLOCK_GetOscFreq() / (CLOCK_GetDiv(kCLOCK_UartDiv) + 1U); } return freq; }