I think：
void HAL_setupClks(HAL_Handle handle)
{
HAL_Obj *obj = (HAL_Obj *)handle;
// enable internal oscillator 1
CLK_disableOsc1(obj->clkHandle); //disable
// set the oscillator source
CLK_setOscSrc(obj->clkHandle,CLK_OscSrc_External);
// disable the external clock in
CLK_disableClkIn(obj->clkHandle);
// disable the crystal oscillator
CLK_enableCrystalOsc(obj->clkHandle);//enable
// disable oscillator 2
CLK_disableOsc2(obj->clkHandle);
// set the low speed clock prescaler
CLK_setLowSpdPreScaler(obj->clkHandle,CLK_LowSpdPreScaler_SysClkOut_by_1);
// set the clock out prescaler
CLK_setClkOutPreScaler(obj->clkHandle,CLK_ClkOutPreScaler_SysClkOut_by_1);
return;
} // end of HAL_setupClks() function
But no success；For products to mass production, emergency help!thank you
