85 lines
3.0 KiB
Rust
85 lines
3.0 KiB
Rust
#![no_std]
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#![no_main]
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use defmt::*;
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use embassy_stm32::tsc::{self, *};
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use embassy_stm32::{bind_interrupts, peripherals};
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use embassy_time::Timer;
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use {defmt_rtt as _, panic_probe as _};
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bind_interrupts!(struct Irqs {
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TSC => InterruptHandler<embassy_stm32::peripherals::TSC>;
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});
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#[cortex_m_rt::exception]
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unsafe fn HardFault(_: &cortex_m_rt::ExceptionFrame) -> ! {
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cortex_m::peripheral::SCB::sys_reset();
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}
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#[embassy_executor::main]
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async fn main(_spawner: embassy_executor::Spawner) {
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let device_config = embassy_stm32::Config::default();
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let context = embassy_stm32::init(device_config);
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let config = tsc::Config {
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ct_pulse_high_length: ChargeTransferPulseCycle::_2,
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ct_pulse_low_length: ChargeTransferPulseCycle::_2,
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spread_spectrum: false,
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spread_spectrum_deviation: SSDeviation::new(2).unwrap(),
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spread_spectrum_prescaler: false,
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pulse_generator_prescaler: PGPrescalerDivider::_4,
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max_count_value: MaxCount::_8191,
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io_default_mode: false,
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synchro_pin_polarity: false,
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acquisition_mode: false,
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max_count_interrupt: false,
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};
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let mut g1: PinGroupWithRoles<peripherals::TSC, G1> = PinGroupWithRoles::default();
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g1.set_io2::<tsc::pin_roles::Sample>(context.PB13);
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g1.set_io3::<tsc::pin_roles::Shield>(context.PB14);
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let mut g2: PinGroupWithRoles<peripherals::TSC, G2> = PinGroupWithRoles::default();
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g2.set_io1::<tsc::pin_roles::Sample>(context.PB4);
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let sensor0 = g2.set_io2(context.PB5);
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let mut g7: PinGroupWithRoles<peripherals::TSC, G7> = PinGroupWithRoles::default();
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g7.set_io2::<tsc::pin_roles::Sample>(context.PE3);
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let sensor1 = g7.set_io3(context.PE4);
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let pin_groups: PinGroups<peripherals::TSC> = PinGroups {
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g1: Some(g1.pin_group),
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g2: Some(g2.pin_group),
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g7: Some(g7.pin_group),
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..Default::default()
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};
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let mut touch_controller = tsc::Tsc::new_async(context.TSC, pin_groups, config, Irqs).unwrap();
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let acquisition_bank = touch_controller.create_acquisition_bank(AcquisitionBankPins {
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g2_pin: Some(sensor0),
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g7_pin: Some(sensor1),
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..Default::default()
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});
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touch_controller.set_active_channels_bank(&acquisition_bank);
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info!("Starting touch_controller interface");
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loop {
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touch_controller.start();
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touch_controller.pend_for_acquisition().await;
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touch_controller.discharge_io(true);
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Timer::after_millis(1).await;
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let status = touch_controller.get_acquisition_bank_status(&acquisition_bank);
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if status.all_complete() {
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let read_values = touch_controller.get_acquisition_bank_values(&acquisition_bank);
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let group2_reading = read_values.get_group_reading(Group::Two).unwrap();
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let group7_reading = read_values.get_group_reading(Group::Seven).unwrap();
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info!("group 2 value: {}", group2_reading.sensor_value);
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info!("group 7 value: {}", group7_reading.sensor_value);
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}
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}
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}
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