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ADCv3 and example.

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This commit is contained in:
Bob McWhirter
2021-06-10 15:33:43 -04:00
parent 0dafd8f763
commit d58fb11b2e
8 changed files with 555 additions and 13 deletions
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20
examples/stm32l4/src/bin/dac.rs
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@ -8,20 +8,20 @@
#[path = "../example_common.rs"]
mod example_common;
use embassy_stm32::gpio::{Level, Output, Input, Pull, NoPin};
use embedded_hal::digital::v2::{OutputPin, InputPin};
use embassy_stm32::gpio::{Input, Level, NoPin, Output, Pull};
use embedded_hal::digital::v2::{InputPin, OutputPin};
use example_common::*;
use cortex_m_rt::entry;
//use stm32f4::stm32f429 as pac;
use stm32l4::stm32l4x5 as pac;
use embassy_stm32::spi::{Spi, MODE_0, ByteOrder, Config};
use embassy_stm32::dac::{Channel, Dac, Value};
use embassy_stm32::spi::{ByteOrder, Config, Spi, MODE_0};
use embassy_stm32::time::Hertz;
use embedded_hal::blocking::spi::Transfer;
use stm32l4xx_hal::{rcc, prelude::*};
use stm32l4xx_hal::rcc::PllSource;
use embassy_stm32::dac::{Dac, Value, Channel};
use stm32l4::stm32l4x5 as pac;
use stm32l4xx_hal::gpio::PA4;
use stm32l4xx_hal::rcc::PllSource;
use stm32l4xx_hal::{prelude::*, rcc};
#[entry]
fn main() -> ! {
@ -72,7 +72,7 @@ fn main() -> ! {
loop {
for v in 0..=255 {
dac.set(Channel::Ch1, Value::Bit8(to_sine_wave(v)));
dac.trigger( Channel::Ch1 );
dac.trigger(Channel::Ch1);
}
}
}
@ -82,11 +82,11 @@ use micromath::F32Ext;
fn to_sine_wave(v: u8) -> u8 {
if v >= 128 {
// top half
let r = 3.14 * ( (v-128) as f32/ 128.0) ;
let r = 3.14 * ((v - 128) as f32 / 128.0);
(r.sin() * 128.0 + 127.0) as u8
} else {
// bottom half
let r = 3.14 + 3.14 * (v as f32/ 128.0);
let r = 3.14 + 3.14 * (v as f32 / 128.0);
(r.sin() * 128.0 + 127.0) as u8
}
}