void sysHwInit0(void)
{
intLock();
#if PLL_EN == 0
/* Not use PLL 不使用PLL */
SysCtlClockSet(CCLK_DIV
| SYSCTL_USE_OSC
| SYSCTL_OSC_MAIN
| EXT_CLK);
#else
/* Use PLL 使用PLL */
SysCtlClockSet(CCLK_DIV
| SYSCTL_USE_PLL
| SYSCTL_OSC_MAIN
| EXT_CLK);
#endif
intLibInit();
//系统IO初始化
bsp_gpio_init();
//系统串口初始化
sysSerialHwInit();
intUnlock();
}
/*******************************************************************************
*
* sysHwInit - initialize the CPU board hardware
*
* This routine initializes various features of the hardware.
* Normally, it is called from usrInit() in usrConfig.c.
*
* NOTE: This routine should not be called directly by the user.
*
* RETURNS: N/A
*
* ERRNO: N/A
*/
void sysHwInit (void)
{
dmesg_init();
/* install the IRQ/SVC interrupt stack splitting routine */
#ifndef _ARCH_SUPPORTS_PROTECT_INTERRUPT_STACK
_func_armIntStackSplit = sysIntStackSplit;
#endif /* !_ARCH_SUPPORTS_PROTECT_INTERRUPT_STACK */
#if defined(INCLUDE_TTY_DEV) || defined(INCLUDE_SIO_POLL)
sysSerialHwInit ();
#endif
#ifdef FORCE_DEFAULT_BOOT_LINE
strncpy(sysBootLine, DEFAULT_BOOT_LINE, strlen(DEFAULT_BOOT_LINE)+1);
#endif /* FORCE_DEFAULT_BOOT_LINE */
}
void sysHwInit2(
void
)
{
/* Connect system timer interrupt handler */
intConnectDefault(0x20, sysClockInt, NULL);
#ifdef INCLUDE_PC_CONSOLE
intConnectDefault(0x21, kbdIntr, (void *) 0);
#endif /* INCLUDE_PC_CONSOLE */
sysSerialHwInit();
sysSerialHwInit2();
#ifdef INCLUDE_PC_MOUSE
/* TODO */
#endif /* INCLUDE_PC_MOUSE */
}
/**
******************************************************************************
* @brief 硬件初始化
* @param[in] None
* @param[out] None
* @retval None
*
* @details
*
* @note
******************************************************************************
*/
void sysHwInit0(void)
{
intLock();
SystemInit();
intLibInit();
//使能外设
sysRccInit();
//系统IO初始化
bsp_gpio_init();
//系统串口初始化
sysSerialHwInit();
intUnlock();
}