mirror of
https://github.com/hathach/tinyusb.git
synced 2025-02-24 03:40:29 +00:00
40 lines
1.9 KiB
C
40 lines
1.9 KiB
C
#include "clock_config.h"
|
|
#include "fsl_clock.h"
|
|
|
|
/*******************************************************************************
|
|
* Variables
|
|
******************************************************************************/
|
|
/* System clock frequency. */
|
|
// extern uint32_t SystemCoreClock;
|
|
|
|
/*******************************************************************************
|
|
* Variables for BOARD_BootClockRUN configuration
|
|
******************************************************************************/
|
|
const mcglite_config_t mcgliteConfig_BOARD_BootClockRUN = {
|
|
.outSrc = kMCGLITE_ClkSrcHirc, /* MCGOUTCLK source is HIRC */
|
|
.irclkEnableMode = kMCGLITE_IrclkEnable, /* MCGIRCLK enabled, MCGIRCLK disabled in STOP mode */
|
|
.ircs = kMCGLITE_Lirc8M, /* Slow internal reference (LIRC) 8 MHz clock selected */
|
|
.fcrdiv = kMCGLITE_LircDivBy1, /* Low-frequency Internal Reference Clock Divider: divided by 1 */
|
|
.lircDiv2 = kMCGLITE_LircDivBy1, /* Second Low-frequency Internal Reference Clock Divider: divided by 1 */
|
|
.hircEnableInNotHircMode = true, /* HIRC source is enabled */
|
|
};
|
|
const sim_clock_config_t simConfig_BOARD_BootClockRUN = {
|
|
.er32kSrc = SIM_OSC32KSEL_LPO_CLK, /* OSC32KSEL select: LPO clock */
|
|
.clkdiv1 = 0x10000U, /* SIM_CLKDIV1 - OUTDIV1: /1, OUTDIV4: /2 */
|
|
};
|
|
|
|
/*******************************************************************************
|
|
* Code for BOARD_BootClockRUN configuration
|
|
******************************************************************************/
|
|
void BOARD_BootClockRUN(void)
|
|
{
|
|
/* Set the system clock dividers in SIM to safe value. */
|
|
CLOCK_SetSimSafeDivs();
|
|
/* Set MCG to HIRC mode. */
|
|
CLOCK_SetMcgliteConfig(&mcgliteConfig_BOARD_BootClockRUN);
|
|
/* Set the clock configuration in SIM module. */
|
|
CLOCK_SetSimConfig(&simConfig_BOARD_BootClockRUN);
|
|
/* Set SystemCoreClock variable. */
|
|
SystemCoreClock = BOARD_BOOTCLOCKRUN_CORE_CLOCK;
|
|
}
|