I have read many post about this problem but i can't find the way to fix it - hang on HibernateEnableExpClk(SysCtlClockGet());
The below code works in ek-tm4c123gxl launchpad, but my custom board is not. I think the reason is hardware. I try to follow the launchpad, it still doesn't work.
I check HIB_CTL, When set HIB_CTL_CLK32EN bit, HIB_CTL_WRC bit never set again.
My code:
...
int main(void)
{
ROM_SysCtlClockSet(SYSCTL_SYSDIV_4|SYSCTL_USE_PLL|SYSCTL_OSC_MAIN|SYSCTL_XTAL_16MHZ);
ROM_SysCtlPeripheralEnable(SYSCTL_PERIPH_HIBERNATE);
HibernateEnableExpClk(SysCtlClockGet());
....
}
P/s: I try to set HIB_CTL_VDD3ON bit, it doesn't work.
