/* ADC Set Clock Prescale. 
The ADC clock taken from the many sources. */
void adc_set_clk_source(uint32_t adc, uint32_t source)
/* ADC Set Clock Prescale. 
The ADC clock taken from the many sources. */
void adc_set_clk_source(uint32_t adc, uint32_t source)
{
	ADC_CFGR2(adc) = ((ADC_CFGR2(adc) & ~ADC_CFGR2_CKMODE) | source);
}