static void adc_setup(void)
{
int i;
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single timer triggered injected conversion. */
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
/* We can only use discontinuous mode on either the regular OR injected channels, not both */
adc_disable_discontinuous_mode_regular(ADC1);
adc_enable_discontinuous_mode_injected(ADC1);
/* We want to start the injected conversion with the TIM2 TRGO */
adc_enable_external_trigger_injected(ADC1,ADC_CR2_JEXTSEL_TIM2_TRGO);
adc_set_right_aligned(ADC1);
/* We want to read the temperature sensor, so we have to enable it. */
adc_enable_temperature_sensor(ADC1);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
adc_reset_calibration(ADC1);
while ((ADC_CR2(ADC1) & ADC_CR2_RSTCAL) != 0);
adc_calibration(ADC1);
while ((ADC_CR2(ADC1) & ADC_CR2_CAL) != 0);
}
static void adc_setup(void)
{
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO0);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT, GPIO_CNF_INPUT_ANALOG, GPIO1);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single conversion. */
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
int i;
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
adc_reset_calibration(ADC1);
adc_calibration(ADC1);
}
void adc_setup(void) {
//ADC
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_ADC12EN);
rcc_peripheral_enable_clock(&RCC_AHBENR, RCC_AHBENR_IOPAEN);
//ADC
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO0);
gpio_mode_setup(GPIOA, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, GPIO1);
adc_off(ADC1);
adc_set_clk_prescale(ADC_CCR_CKMODE_DIV2);
adc_set_single_conversion_mode(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
/* We want to read the temperature sensor, so we have to enable it. */
adc_enable_temperature_sensor();
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR1_SMP_61DOT5CYC);
uint8_t channel_array[16];
channel_array[0]=16; // Vts (Internal temperature sensor
channel_array[0]=1; //ADC1_IN1 (PA0)
adc_set_regular_sequence(ADC1, 1, channel_array);
adc_set_resolution(ADC1, ADC_CFGR_RES_12_BIT);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
int i;
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
}
static void adc_setup(void)
{
int i;
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single conversion. */
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
/* We want to read the temperature sensor, so we have to enable it. */
adc_enable_temperature_sensor(ADC1);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
adc_reset_calibration(ADC1);
adc_calibration(ADC1);
}
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_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN);
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, GPIO6);
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, GPIO5 | GPIO1);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single conversion. */
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
//adc_enable_temperature_sensor(ADC1);
//adc_set_injected_offset(ADC1, 0x2, 0x00);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
delay_ms(170);
adc_reset_calibration(ADC1);
adc_calibration(ADC1);
}
void adc_setup()
{
rcc_periph_clock_enable(RCC_ADC1);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single conversion. */
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
int i;
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
/* Select the channel we want to convert. 16=temperature_sensor. */
uint8_t channel_array[16];
channel_array[0] = 0;
adc_set_regular_sequence(ADC1, 1, channel_array);
/* Start the conversion directly (not trigger mode). */
adc_start_conversion_direct(ADC1);
}
static void adc_setup(void)
{
int i;
rcc_peripheral_enable_clock(&RCC_APB2ENR, RCC_APB2ENR_ADC1EN);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single timer triggered injected conversion with interrupt generation. */
/* While not needed for a single channel, try out scan mode which does all channels in one sweep and
* generates the interrupt/EOC/JEOC flags set at the end of all channels, not each one.
*/
adc_enable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
/* We want to start the injected conversion with the TIM2 TRGO */
adc_enable_external_trigger_injected(ADC1,ADC_CR2_JEXTSEL_TIM2_TRGO);
/* Generate the ADC1_2_IRQ */
adc_enable_eoc_interrupt_injected(ADC1);
adc_set_right_aligned(ADC1);
/* We want to read the temperature sensor, so we have to enable it. */
adc_enable_temperature_sensor(ADC1);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
adc_reset_calibration(ADC1);
while ((ADC_CR2(ADC1) & ADC_CR2_RSTCAL) != 0);
adc_calibration(ADC1);
while ((ADC_CR2(ADC1) & ADC_CR2_CAL) != 0);
}
static uint16_t ADC_Measure(uint16_t ch)
{
uint16_t val;
uint8_t channel_array[16];
/* Make sure the ADC doesn't run during config. */
// adc_off(TS_ADC);
/* We configure everything for one single conversion. */
adc_disable_scan_mode(TS_ADC);
adc_set_single_conversion_mode(TS_ADC);
adc_disable_external_trigger_regular(TS_ADC);
adc_set_right_aligned(TS_ADC);
/* ADC regular channel14 configuration */
// adc_set_sample_time(TS_ADC, ch, ADC_SMPR_SMP_55DOT5CYC);
adc_set_sample_time_on_all_channels(TS_ADC, ADC_SMPR_SMP_55DOT5CYC);
// adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
// ADC_RegularChannelConfig(TS_ADC, ch, 1, ADC_SampleTime_55Cycles5);
/* Enable ADC */
// ADC_Cmd(TS_ADC, ENABLE);
adc_power_on(TS_ADC);
delay(100);
#if 1
/* Enable ADC reset calibaration register */
adc_reset_calibration(TS_ADC);
// ADC_ResetCalibration(TS_ADC);
/* Check the end of ADC reset calibration register */
// while(ADC_GetResetCalibrationStatus(TS_ADC));
/* Start ADC calibaration */
// ADC_StartCalibration(TS_ADC);
// adc_calibration(TS_ADC);
adc_calibrate_async(TS_ADC);
/* Check the end of ADC calibration */
// while(ADC_GetCalibrationStatus(TS_ADC));
#endif
/* Select the channel we want to convert. */
channel_array[0] = ch;
adc_set_regular_sequence(TS_ADC, 1, channel_array);
/* Start ADC Software Conversion */
// adc_start_conversion_regular(TS_ADC);
adc_start_conversion_direct(TS_ADC);
while(!adc_eoc(TS_ADC));
// val = adc_read_regular(TS_ADC);
val = ADC_DR(TS_ADC);
// adc_off(TS_ADC);
return val;
}
/**
* NOTE this is a state machine, but it expects to run often enough for millis()
* @param machine
* @param res
*/
void jack_run_task(volatile struct jacks_machine_t *machine, struct jacks_result_t *res)
{
res->ready = false;
if (!jack_connected(machine->jack)) {
return;
}
switch (machine->step) {
case jack_machine_step_off:
// is it time to do a reading yet?
if (millis() - 3000 > machine->last_read_millis) {
printf("switching power on: channel %u\n", (unsigned int) machine->jack->val_channel);
gpio_set(machine->jack->power_port, machine->jack->power_pin);
machine->step = jack_machine_step_powered;
machine->step_entry_millis = millis();
}
break;
case jack_machine_step_powered:
// have we been powered up long enough yet?
if (millis() - machine->jack->power_on_time_millis > machine->step_entry_millis) {
printf("power stable!\n");
machine->step = jack_machine_step_ready;
// not really necessary... machine->step_entry_millis = millis();
} else {
printf(".");
}
break;
case jack_machine_step_ready:
// TODO - this should actually start a dma sequence and go to a next step
// that decimates/averages and finally returns.
// ok! do a few readings and call it good
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
//adc_set_single_channel(ADC1, machine->jack->val_channel);
adc_set_regular_sequence(ADC1, 1, (u8*)&(machine->jack->val_channel));
adc_enable_external_trigger_regular(ADC1, ADC_CR2_EXTSEL_SWSTART);
adc_start_conversion_regular(ADC1);
printf("ok, doing reading on channel!\n");
while(!adc_eoc(ADC1)) {
;
}
res->ready = true;
res->value = adc_read_regular(ADC1);
machine->last_value = res->value;
machine->last_read_millis = millis();
gpio_clear(machine->jack->power_port, machine->jack->power_pin);
machine->step = jack_machine_step_off;
break;
}
return;
}
void tshw_init(void)
{
rcc_periph_clock_enable(RCC_ADC1);
/* Make sure the ADC doesn't run during config. */
// adc_off(TS_ADC);
adc_set_dual_mode(ADC_CR1_DUALMOD_IND);
adc_set_single_conversion_mode(TS_ADC);
// adc_enable_trigger(TS_ADC, ADC_CR2_EXTSEL_SWSTART);
adc_set_right_aligned(TS_ADC);
tshw_prepare_wait();
delay(100);
}
void battery_setup() {
gpio_mode_setup(BAT_STAT_PORT, GPIO_MODE_INPUT, GPIO_PUPD_PULLUP, BAT_STAT1_PORT | BAT_STAT2_PORT | BAT_PG_PORT);
gpio_mode_setup(BAT_SENSE_PORT, GPIO_MODE_ANALOG, GPIO_PUPD_NONE, BAT_SENSE_PIN);
adc_off(BAT_SENSE_ADC);
adc_disable_scan_mode(BAT_SENSE_ADC);
adc_set_single_conversion_mode(ADC1);
adc_set_sample_time(ADC1, ADC_CHANNEL10, ADC_SMPR_SMP_15CYC);
uint8_t channels[] = {ADC_CHANNEL10};
adc_set_regular_sequence(BAT_SENSE_ADC, 1, channels);
adc_power_on(BAT_SENSE_ADC);
}
static void adc_setup(void)
{
int i;
rcc_periph_clock_enable(RCC_ADC1);
/* Make sure the ADC doesn't run during config. */
adc_power_off(ADC1);
/* We configure everything for one single timer triggered injected conversion with interrupt generation. */
/* While not needed for a single channel, try out scan mode which does all channels in one sweep and
* generates the interrupt/EOC/JEOC flags set at the end of all channels, not each one.
*/
adc_enable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
/* We want to start the injected conversion with the TIM2 TRGO */
adc_enable_external_trigger_injected(ADC1,ADC_CR2_JEXTSEL_TIM2_TRGO);
/* Generate the ADC1_2_IRQ */
adc_enable_eoc_interrupt_injected(ADC1);
adc_set_right_aligned(ADC1);
/* We want to read the temperature sensor, so we have to enable it. */
adc_enable_temperature_sensor();
adc_set_sample_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
/* Select the channels we want to convert.
* 16=temperature_sensor, 17=Vrefint, 13=ADC1, 10=ADC2
*/
channel_array[0] = 16;
channel_array[1] = 17;
channel_array[2] = 13;
channel_array[3] = 10;
adc_set_injected_sequence(ADC1, 4, channel_array);
adc_power_on(ADC1);
/* Wait for ADC starting up. */
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
adc_reset_calibration(ADC1);
adc_calibrate(ADC1);
}
/**
* Enable selected channels on specified ADC.
* Usage:
*
* adc_init_single(ADC1, 1, 1, 0, 0);
*
* ... would enable ADC1, enabling channels 1 and 2,
* but not 3 and 4.
*/
static inline void adc_init_single(uint32_t adc,
uint8_t chan1, uint8_t chan2,
uint8_t chan3, uint8_t chan4)
{
uint8_t num_channels, rank;
uint8_t channels[4];
// Paranoia, must be down for 2+ ADC clock cycles before calibration
adc_off(adc);
/* enable adc clock */
if (adc == ADC1) {
#ifdef USE_AD1
num_channels = NB_ADC1_CHANNELS;
ADC1_GPIO_INIT();
#endif
}
else if (adc == ADC2) {
#ifdef USE_AD2
num_channels = NB_ADC2_CHANNELS;
ADC2_GPIO_INIT();
#endif
}
/* Configure ADC */
/* Explicitly setting most registers, reset/default values are correct for most */
/* Set CR1 register. */
/* Clear AWDEN */
adc_disable_analog_watchdog_regular(adc);
/* Clear JAWDEN */
adc_disable_analog_watchdog_injected(adc);
/* Clear DISCEN */
adc_disable_discontinuous_mode_regular(adc);
/* Clear JDISCEN */
adc_disable_discontinuous_mode_injected(adc);
/* Clear JAUTO */
adc_disable_automatic_injected_group_conversion(adc);
/* Set SCAN */
adc_enable_scan_mode(adc);
/* Enable ADC<X> JEOC interrupt (Set JEOCIE) */
adc_enable_eoc_interrupt_injected(adc);
/* Clear AWDIE */
adc_disable_awd_interrupt(adc);
/* Clear EOCIE */
adc_disable_eoc_interrupt(adc);
/* Set CR2 register. */
/* Clear TSVREFE */
adc_disable_temperature_sensor(adc);
/* Clear EXTTRIG */
adc_disable_external_trigger_regular(adc);
/* Clear ALIGN */
adc_set_right_aligned(adc);
/* Clear DMA */
adc_disable_dma(adc);
/* Clear CONT */
adc_set_single_conversion_mode(adc);
rank = 0;
if (chan1) {
adc_set_sample_time(adc, adc_channel_map[0], ADC_SMPR1_SMP_41DOT5CYC);
channels[rank] = adc_channel_map[0];
rank++;
}
if (chan2) {
adc_set_sample_time(adc, adc_channel_map[1], ADC_SMPR1_SMP_41DOT5CYC);
channels[rank] = adc_channel_map[1];
rank++;
}
if (chan3) {
adc_set_sample_time(adc, adc_channel_map[2], ADC_SMPR1_SMP_41DOT5CYC);
channels[rank] = adc_channel_map[2];
rank++;
}
if (chan4) {
adc_set_sample_time(adc, adc_channel_map[3], ADC_SMPR1_SMP_41DOT5CYC);
channels[rank] = adc_channel_map[3];
}
adc_set_injected_sequence(adc, num_channels, channels);
#if USE_AD_TIM4
#pragma message "Info: Using TIM4 for ADC"
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM4_TRGO);
#elif USE_AD_TIM1
#pragma message "Info: Using TIM1 for ADC"
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM1_TRGO);
#else
#pragma message "Info: Using default TIM2 for ADC"
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM2_TRGO);
#endif
/* Enable ADC<X> */
adc_power_on(adc);
/* Enable ADC<X> reset calibaration register */
adc_reset_calibration(adc);
/* Check the end of ADC<X> reset calibration */
while ((ADC_CR2(adc) & ADC_CR2_RSTCAL) != 0);
/* Start ADC<X> calibaration */
adc_calibration(adc);
/* Check the end of ADC<X> calibration */
while ((ADC_CR2(adc) & ADC_CR2_CAL) != 0);
} // adc_init_single
static inline void adc_init_single(uint32_t adc, uint8_t nb_channels, uint8_t* channel_map)
{
// Paranoia, must be down for 2+ ADC clock cycles before calibration
adc_off(adc);
/* Configure ADC */
/* Explicitly setting most registers, reset/default values are correct for most */
/* Set CR1 register. */
/* Clear AWDEN */
adc_disable_analog_watchdog_regular(adc);
/* Clear JAWDEN */
adc_disable_analog_watchdog_injected(adc);
/* Clear DISCEN */
adc_disable_discontinuous_mode_regular(adc);
/* Clear JDISCEN */
adc_disable_discontinuous_mode_injected(adc);
/* Clear JAUTO */
adc_disable_automatic_injected_group_conversion(adc);
/* Set SCAN */
adc_enable_scan_mode(adc);
/* Enable ADC<X> JEOC interrupt (Set JEOCIE) */
adc_enable_eoc_interrupt_injected(adc);
/* Clear AWDIE */
adc_disable_awd_interrupt(adc);
/* Clear EOCIE */
adc_disable_eoc_interrupt(adc);
/* Set CR2 register. */
/* Clear TSVREFE */
#if defined(STM32F1)
adc_disable_temperature_sensor(adc);
#elif defined(STM32F4)
adc_disable_temperature_sensor();
#endif
/* Clear EXTTRIG */
adc_disable_external_trigger_regular(adc);
/* Clear ALIGN */
adc_set_right_aligned(adc);
/* Clear DMA */
adc_disable_dma(adc);
/* Clear CONT */
adc_set_single_conversion_mode(adc);
//uint8_t x = 0;
//for (x = 0; x < nb_channels; x++) {
// adc_set_sample_time(adc, channel_map[x], ADC_SAMPLE_TIME);
//}
adc_set_sample_time_on_all_channels(adc, ADC_SAMPLE_TIME);
adc_set_injected_sequence(adc, nb_channels, channel_map);
#if USE_AD_TIM4
PRINT_CONFIG_MSG("Info: Using TIM4 for ADC")
#if defined(STM32F1)
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM4_TRGO);
#elif defined(STM32F4)
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM4_TRGO, ADC_CR2_JEXTEN_BOTH_EDGES);
#endif
#elif USE_AD_TIM1
PRINT_CONFIG_MSG("Info: Using TIM1 for ADC")
#if defined(STM32F1)
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM1_TRGO);
#elif defined(STM32F4)
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM1_TRGO, ADC_CR2_JEXTEN_BOTH_EDGES);
#endif
#else
PRINT_CONFIG_MSG("Info: Using default TIM2 for ADC")
#if defined(STM32F1)
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM2_TRGO);
#elif defined(STM32F4)
adc_enable_external_trigger_injected(adc, ADC_CR2_JEXTSEL_TIM2_TRGO, ADC_CR2_JEXTEN_BOTH_EDGES);
#endif
#endif
/* Enable ADC<X> */
adc_power_on(adc);
#if defined(STM32F1)
/* Enable ADC<X> reset calibaration register */
adc_reset_calibration(adc);
/* Check the end of ADC<X> reset calibration */
while ((ADC_CR2(adc) & ADC_CR2_RSTCAL) != 0);
/* Start ADC<X> calibaration */
adc_calibration(adc);
/* Check the end of ADC<X> calibration */
while ((ADC_CR2(adc) & ADC_CR2_CAL) != 0);
#endif
return;
} // adc_init_single
static void setup_stm32f1_peripherals(void)
{
rcc_peripheral_enable_clock(&RCC_APB1ENR,
RCC_APB1ENR_I2C1EN);
rcc_peripheral_enable_clock(&RCC_APB2ENR,
RCC_APB2ENR_ADC1EN);
/* GPIO pin for I2C1 SCL, SDA */
/* VESNA v1.0
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO6);
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, GPIO7);
*/
/* VESNA v1.1 */
AFIO_MAPR |= AFIO_MAPR_I2C1_REMAP;
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, TDA_PIN_SCL);
gpio_set_mode(GPIOB, GPIO_MODE_OUTPUT_50_MHZ,
GPIO_CNF_OUTPUT_ALTFN_OPENDRAIN, TDA_PIN_SDA);
/* GPIO pin for TDA18219 IRQ */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_FLOAT, TDA_PIN_IRQ);
/* GPIO pin for TDA18219 IF AGC */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, TDA_PIN_IF_AGC);
/* Set to lowest gain for now */
gpio_clear(GPIOA, TDA_PIN_IF_AGC);
/* GPIO pin for AD8307 ENB */
gpio_set_mode(GPIOA, GPIO_MODE_OUTPUT_2_MHZ,
GPIO_CNF_OUTPUT_PUSHPULL, TDA_PIN_ENB);
/* ADC pin for AD8307 output */
gpio_set_mode(GPIOA, GPIO_MODE_INPUT,
GPIO_CNF_INPUT_ANALOG, TDA_PIN_OUT);
/* Setup I2C */
i2c_peripheral_disable(I2C1);
/* 400 kHz - I2C Fast Mode */
i2c_set_clock_frequency(I2C1, I2C_CR2_FREQ_24MHZ);
i2c_set_fast_mode(I2C1);
/* 400 kHz */
i2c_set_ccr(I2C1, 0x14);
/* 300 ns rise time */
i2c_set_trise(I2C1, 0x08);
i2c_peripheral_enable(I2C1);
/* Make sure the ADC doesn't run during config. */
adc_off(ADC1);
/* We configure everything for one single conversion. */
adc_disable_scan_mode(ADC1);
adc_set_single_conversion_mode(ADC1);
adc_enable_discontinous_mode_regular(ADC1);
adc_disable_external_trigger_regular(ADC1);
adc_set_right_aligned(ADC1);
adc_set_conversion_time_on_all_channels(ADC1, ADC_SMPR_SMP_28DOT5CYC);
adc_on(ADC1);
/* Wait for ADC starting up. */
int i;
for (i = 0; i < 800000; i++) /* Wait a bit. */
__asm__("nop");
adc_reset_calibration(ADC1);
adc_calibration(ADC1);
uint8_t channel_array[16];
/* Select the channel we want to convert. */
if(TDA_PIN_OUT == GPIO0) {
channel_array[0] = 0;
} else if(TDA_PIN_OUT == GPIO2) {
channel_array[0] = 2;
}
adc_set_regular_sequence(ADC1, 1, channel_array);
}
