void adc_init (void) { rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN); rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPAEN); rcc_peripheral_enable_clock(&RCC_AHB1ENR, RCC_AHB1ENR_IOPCEN); gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1); //PA1 joint_1 gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO2); //PA2 joint_2 gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO3); //PA3 joint_3 gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1); //PC1 joint_4 gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO2); //PC2 joint_5 gpio_mode_setup(GPIOC, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO5); //PC5 joint_6 adc_set_clk_prescale(ADC_CCR_ADCPRE_BY2); adc_disable_scan_mode(ADC1); adc_set_single_conversion_mode(ADC1); adc_set_sample_time(ADC1, ADC_CHANNEL1, ADC_SMPR_SMP_3CYC); //joint_1 adc_set_sample_time(ADC1, ADC_CHANNEL2, ADC_SMPR_SMP_3CYC); //joint_2 adc_set_sample_time(ADC1, ADC_CHANNEL3, ADC_SMPR_SMP_3CYC); //joint_3 adc_set_sample_time(ADC1, ADC_CHANNEL11, ADC_SMPR_SMP_3CYC); //joint_4 adc_set_sample_time(ADC1, ADC_CHANNEL12, ADC_SMPR_SMP_3CYC); //joint_5 adc_set_sample_time(ADC1, ADC_CHANNEL15, ADC_SMPR_SMP_3CYC); //joint_6 adc_set_multi_mode(ADC_CCR_MULTI_INDEPENDENT); adc_power_on(ADC1); //nvic_enable_irq(NVIC_ADC_IRQ); //adc_enable_eoc_interrupt(ADC1); //adc_disable_eoc_interrupt(ADC1); }
/*--------------------------------------------------------------------*/ void adc_setup(void) { rcc_periph_clock_enable(RCC_ADC1); rcc_periph_clock_enable(RCC_GPIOA); nvic_enable_irq(NVIC_ADC_IRQ); /* Set port PA1 for ADC1 to analogue mode. */ gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1); adc_power_on(ADC1); uint8_t channel[1] = { ADC_CHANNEL1 }; adc_set_regular_sequence(ADC1, 1, channel); adc_set_clk_prescale(ADC_CCR_ADCPRE_BY2); adc_enable_scan_mode(ADC1); adc_set_continuous_conversion_mode(ADC1); adc_set_sample_time(ADC1, ADC_CHANNEL1, ADC_SMPR_SMP_3CYC); adc_set_multi_mode(ADC_CCR_MULTI_INDEPENDENT); adc_set_dma_continue(ADC1); adc_enable_dma(ADC1); adc_enable_overrun_interrupt(ADC1); }