diff options
| author | Raul Alimbekov <[email protected]> | 2025-12-16 09:05:22 +0300 |
|---|---|---|
| committer | GitHub <[email protected]> | 2025-12-16 09:05:22 +0300 |
| commit | c9a04b4b732b7a3b696eb8223664c1a7942b1875 (patch) | |
| tree | 6dbe5c02e66eed8d8762f13f95afd24f8db2b38c /examples/stm32wba6/src/bin/adc.rs | |
| parent | cde24a3ef1117653ba5ed4184102b33f745782fb (diff) | |
| parent | 5ae6e060ec1c90561719aabdc29d5b6e7b8b0a82 (diff) | |
Merge branch 'main' into main
Diffstat (limited to 'examples/stm32wba6/src/bin/adc.rs')
| -rw-r--r-- | examples/stm32wba6/src/bin/adc.rs | 50 |
1 files changed, 39 insertions, 11 deletions
diff --git a/examples/stm32wba6/src/bin/adc.rs b/examples/stm32wba6/src/bin/adc.rs index a9651d57e..51dcff57a 100644 --- a/examples/stm32wba6/src/bin/adc.rs +++ b/examples/stm32wba6/src/bin/adc.rs | |||
| @@ -2,30 +2,55 @@ | |||
| 2 | #![no_main] | 2 | #![no_main] |
| 3 | 3 | ||
| 4 | use defmt::*; | 4 | use defmt::*; |
| 5 | use embassy_stm32::adc::{adc4, AdcChannel}; | 5 | use embassy_stm32::Config; |
| 6 | use embassy_stm32::adc::{Adc, AdcChannel, SampleTime, adc4}; | ||
| 7 | use embassy_stm32::rcc::{ | ||
| 8 | AHB5Prescaler, AHBPrescaler, APBPrescaler, PllDiv, PllMul, PllPreDiv, PllSource, Sysclk, VoltageScale, | ||
| 9 | }; | ||
| 6 | use {defmt_rtt as _, panic_probe as _}; | 10 | use {defmt_rtt as _, panic_probe as _}; |
| 7 | 11 | ||
| 8 | #[embassy_executor::main] | 12 | #[embassy_executor::main] |
| 9 | async fn main(_spawner: embassy_executor::Spawner) { | 13 | async fn main(_spawner: embassy_executor::Spawner) { |
| 10 | let config = embassy_stm32::Config::default(); | 14 | let mut config = Config::default(); |
| 15 | // Fine-tune PLL1 dividers/multipliers | ||
| 16 | config.rcc.pll1 = Some(embassy_stm32::rcc::Pll { | ||
| 17 | source: PllSource::HSI, | ||
| 18 | prediv: PllPreDiv::DIV1, // PLLM = 1 → HSI / 1 = 16 MHz | ||
| 19 | mul: PllMul::MUL30, // PLLN = 30 → 16 MHz * 30 = 480 MHz VCO | ||
| 20 | divr: Some(PllDiv::DIV5), // PLLR = 5 → 96 MHz (Sysclk) | ||
| 21 | // divq: Some(PllDiv::DIV10), // PLLQ = 10 → 48 MHz (NOT USED) | ||
| 22 | divq: None, | ||
| 23 | divp: Some(PllDiv::DIV30), // PLLP = 30 → 16 MHz (USBOTG) | ||
| 24 | frac: Some(0), // Fractional part (enabled) | ||
| 25 | }); | ||
| 26 | |||
| 27 | config.rcc.ahb_pre = AHBPrescaler::DIV1; | ||
| 28 | config.rcc.apb1_pre = APBPrescaler::DIV1; | ||
| 29 | config.rcc.apb2_pre = APBPrescaler::DIV1; | ||
| 30 | config.rcc.apb7_pre = APBPrescaler::DIV1; | ||
| 31 | config.rcc.ahb5_pre = AHB5Prescaler::DIV4; | ||
| 32 | |||
| 33 | // voltage scale for max performance | ||
| 34 | config.rcc.voltage_scale = VoltageScale::RANGE1; | ||
| 35 | // route PLL1_P into the USB‐OTG‐HS block | ||
| 36 | config.rcc.sys = Sysclk::PLL1_R; | ||
| 11 | 37 | ||
| 12 | let mut p = embassy_stm32::init(config); | 38 | let mut p = embassy_stm32::init(config); |
| 13 | 39 | ||
| 14 | // **** ADC4 init **** | 40 | // **** ADC4 init **** |
| 15 | let mut adc4 = adc4::Adc4::new(p.ADC4); | 41 | let mut adc4 = Adc::new_adc4(p.ADC4); |
| 16 | let mut adc4_pin1 = p.PA0; // A4 | 42 | let mut adc4_pin1 = p.PA0; // A4 |
| 17 | let mut adc4_pin2 = p.PA1; // A5 | 43 | let mut adc4_pin2 = p.PA1; // A5 |
| 18 | adc4.set_resolution(adc4::Resolution::BITS12); | 44 | adc4.set_resolution_adc4(adc4::Resolution::BITS12); |
| 19 | adc4.set_averaging(adc4::Averaging::Samples256); | 45 | adc4.set_averaging_adc4(adc4::Averaging::Samples256); |
| 20 | adc4.set_sample_time(adc4::SampleTime::CYCLES1_5); | ||
| 21 | let max4 = adc4::resolution_to_max_count(adc4::Resolution::BITS12); | 46 | let max4 = adc4::resolution_to_max_count(adc4::Resolution::BITS12); |
| 22 | 47 | ||
| 23 | // **** ADC4 blocking read **** | 48 | // **** ADC4 blocking read **** |
| 24 | let raw: u16 = adc4.blocking_read(&mut adc4_pin1); | 49 | let raw: u16 = adc4.blocking_read(&mut adc4_pin1, adc4::SampleTime::CYCLES1_5); |
| 25 | let volt: f32 = 3.0 * raw as f32 / max4 as f32; | 50 | let volt: f32 = 3.0 * raw as f32 / max4 as f32; |
| 26 | info!("Read adc4 pin 1 {}", volt); | 51 | info!("Read adc4 pin 1 {}", volt); |
| 27 | 52 | ||
| 28 | let raw: u16 = adc4.blocking_read(&mut adc4_pin2); | 53 | let raw: u16 = adc4.blocking_read(&mut adc4_pin2, adc4::SampleTime::CYCLES1_5); |
| 29 | let volt: f32 = 3.3 * raw as f32 / max4 as f32; | 54 | let volt: f32 = 3.3 * raw as f32 / max4 as f32; |
| 30 | info!("Read adc4 pin 2 {}", volt); | 55 | info!("Read adc4 pin 2 {}", volt); |
| 31 | 56 | ||
| @@ -37,11 +62,14 @@ async fn main(_spawner: embassy_executor::Spawner) { | |||
| 37 | // The channels must be in ascending order and can't repeat for ADC4 | 62 | // The channels must be in ascending order and can't repeat for ADC4 |
| 38 | adc4.read( | 63 | adc4.read( |
| 39 | p.GPDMA1_CH1.reborrow(), | 64 | p.GPDMA1_CH1.reborrow(), |
| 40 | [&mut degraded42, &mut degraded41].into_iter(), | 65 | [ |
| 66 | (&mut degraded42, SampleTime::CYCLES12_5), | ||
| 67 | (&mut degraded41, SampleTime::CYCLES12_5), | ||
| 68 | ] | ||
| 69 | .into_iter(), | ||
| 41 | &mut measurements, | 70 | &mut measurements, |
| 42 | ) | 71 | ) |
| 43 | .await | 72 | .await; |
| 44 | .unwrap(); | ||
| 45 | let volt2: f32 = 3.3 * measurements[0] as f32 / max4 as f32; | 73 | let volt2: f32 = 3.3 * measurements[0] as f32 / max4 as f32; |
| 46 | let volt1: f32 = 3.0 * measurements[1] as f32 / max4 as f32; | 74 | let volt1: f32 = 3.0 * measurements[1] as f32 / max4 as f32; |
| 47 | info!("Async read 4 pin 1 {}", volt1); | 75 | info!("Async read 4 pin 1 {}", volt1); |
