I have the TM4C123FGH6PM controller. I have TivaWare 2.1.0. I try to start my simple program:
SysCtlClockSet(SYSCTL_SYSDIV_2_5 | SYSCTL_USE_PLL | SYSCTL_OSC_MAIN | SYSCTL_XTAL_16MHZ);
freq = SysCtlClockGet();
Then I read value of freq variable and I have got a value of 66,666666 MHz, but expected value is 80 MHz. What is wrong?
As I see in RCC2 register, it looks fine:
SYSDIV2 = 2
SYSDIV2LSB = 0
USERCC2 = 1
DIV400 = 1