void DAC_Init( dac_channels_conf_e channel_conf, uint8_t conv_trig_sel, bool output_buffer_used)
{
	//	Set the DAC out pins as analog pins
	GPIO_Analog_Configure(GPIOA, PIN_4 | PIN_5);

	switch(channel_conf)
	{
		case dac_dual_channel_simultanous:
		{
			DAC->CR &= (uint32_t)0;
			// Set the conversion trigger source and enable it
			DAC->CR |= ((conv_trig_sel << 3) | DAC_CR_TEN1) | (conv_trig_sel << 19) | DAC_CR_TEN2 ;
			//	Enable the output buffer (if required) to decrease the output impedance
			if(output_buffer_used)
			{
				DAC->CR |= DAC_CR_BOFF1  | DAC_CR_BOFF2;
			}
			//	Enable the peripheral
			DAC->CR |= DAC_CR_EN1 | DAC_CR_EN2;
			break;
		}
		default:
		{
			DAC->CR &= (uint32_t)(0 << channel_conf);
			// Set the conversion trigger source and enable it
			DAC->CR |= ((conv_trig_sel << 3) | DAC_CR_TEN1) << channel_conf ;
			//	Enable the output buffer (if required) to decrease the output impedance
			if(output_buffer_used)
			{
				DAC->CR |= DAC_CR_BOFF1 << channel_conf;
			}
			//	Enable the peripheral
			DAC->CR |= DAC_CR_EN1 << channel_conf;
			break;
		}
	}
}