FR801XH的内部电池电压直接获取

[cai896695039]

{

                       	struct adc_cfg_t cfg;
                       
                       	uint16_t result, ref_vol,vbat_vol;
                       
                       	memset((void*)&cfg, 0, sizeof(cfg));
                       
                       	cfg.src = ADC_TRANS_SOURCE_VBAT;
                       
                       	cfg.ref_sel = ADC_REFERENCE_INTERNAL;
                       
                       	cfg.int_ref_cfg = ADC_INTERNAL_REF_1_2;
                       
                       	cfg.clk_sel = ADC_SAMPLE_CLK_24M_DIV13;
                       
                       	cfg.clk_div = 0x3f;
                       
                       	adc_init(&cfg);
                       
                       	adc_enable(NULL, NULL, 0);
                       
                       	adc_get_result(ADC_TRANS_SOURCE_VBAT, 0, &result);
                       
                       	ref_vol = adc_get_ref_voltage(ADC_REFERENCE_INTERNAL);
                       
                       	vbat_vol = (result * 4 * ref_vol) / 1024;
                       
                       	
                       
                       	sprintf((char *)LCD_ShowStringBuff,"Batt_V = %d mV",vbat_vol);
                       
                       	LCD_ShowString(20,200,LCD_ShowStringBuff,BRRED);

}